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EFIS/One

Installation Guide

Copyright blue mountain avionics, inc. 2003

Revision History Release History 2.15 Initial Release of Installation Guide for Version 2.15 MT/BN/GR/BM 09/20/2003 Minor corrections and spelling MT 10/8/2003 Clarifications on Analog 2 and 3 connections MT 10/24/2003 Manual rev E Corrections to INPUT Channel Map,

Localizer connections BMD 11/17/2003 Manual Rev F Addition of G-Meter calibration BMD 12/05/2003 Manual Rev G Sensor Updates, New RPM Tables, GR/BN 03/08/2004 New Features, Sensor Maps 2.16 Manual Rev H Updates to reflect some change in 2.16. Corrected Localizer GOOD pin #s. Added Flash Card Reader. Test Harness, Other TIPS and Clarifications. MT 05/30/2004

Table of Contents

LIMITED WARRANTY ..................................................................................................................................1 RESPONSIBILITIES OF BUYER ............................................................................................................. 1 EXCLUSIONS........................................................................................................................................... 1

NEED HELP?................................................................................................................................................2 SAFETY CONSIDERATIONS.......................................................................................................................2 GETTING STARTED ....................................................................................................................................3 CRIMPERS AND CONNECTORS................................................................................................................4 EFIS/ONE SYSTEM COMPONENT OVERVIEW.........................................................................................5

1. EFIS/ONE PROCESSING UNIT ................................................................................................................. 5 2. DISPLAY AND CONTROLS ......................................................................................................................... 5 3. EXTERNAL MAGNETOMETER .................................................................................................................... 6 4. EXTERNAL FLASH READER .................................................................................................................... 6 5. GPS ANTENNA........................................................................................................................................ 7 6. PROGRAMMING KEYBOARD ...................................................................................................................... 7 KEYBOARD FUNCTIONS: .............................................................................................................................. 7 SOLD STATE ATTITUDE................................................................................................................................ 8

MOUNTING & ENVIRONMENTAL REQUIREMENTS.................................................................................9 EFIS/ONE PROCESSING UNIT ..................................................................................................................... 9 TEMPERATURE............................................................................................................................................ 9 PITOT AND STATIC CONNECTIONS................................................................................................................ 9 DISPLAY ................................................................................................................................................... 10 MAGNETOMETER....................................................................................................................................... 10 OAT SENSOR........................................................................................................................................... 10 EXTERNAL FLASH READER ...................................................................................................................... 10

ITEMS YOU’LL NEED.................................................................................................................................11 SETUP & CONFIGURATION OVERVIEW. ................................................................................................13 SENSOR HOOK UP, CONFIGURATION AND CALIBRATION .................................................................14

A. CONNECTING UP ON THE WORKBENCH ................................................................................................. 14 B. SELECTING SENSORS ........................................................................................................................... 16

Recommended Sensors, Makes & Models ........................................................................................16 Engine Selection & Required Sensors ...............................................................................................18 Fuel Level Sensors.............................................................................................................................19

C. CREATING THE SENSOR MAP. ............................................................................................................... 20 D. CONNECTING SENSORS ........................................................................................................................ 20

Making a Test Harness ......................................................................................................................20 Factory Test Harness and ADTEST...................................................................................................20

E. SENSOR CALIBRATION .......................................................................................................................... 21 EFIS/One Command Shell .................................................................................................................21 About Analog to Digital Conversion....................................................................................................21 Overview & Input of Data ...................................................................................................................23 Calibration Array Data Entry...............................................................................................................24 Example, Creating A Digital Voltmeter ...............................................................................................26

F. SETUP SCREEN .................................................................................................................................... 28 Airspeeds............................................................................................................................................29 Aircraft Parameters.............................................................................................................................29 Engine Gauges...................................................................................................................................31

Documenting your Settings with SETPRINT......................................................................................35 G. CREATING CHECKLISTS ........................................................................................................................ 36

SENSOR TYPES ........................................................................................................................................37 AVAILABLE SENSORS INPUTS..................................................................................................................... 37 STANDARD - INPUT CHANNEL MAP............................................................................................................. 38 JUMPER SETTINGS FOR RESISTIVE SENSORS ............................................................................................. 39 VOLTAGE INPUTS ...................................................................................................................................... 40

Voltage Divider ...................................................................................................................................40 CURRENT MEASUREMENT ......................................................................................................................... 41 CHT AND EGT ......................................................................................................................................... 41 FUEL, OIL, COOLANT AND HYDRAULIC PRESSURE ...................................................................................... 41 FUEL FLOW MEASUREMENT & K FACTOR................................................................................................... 41

Fuel Flow for Turbines........................................................................................................................42 RPM SENSORS FOR LYCOMING AND CONTINENTAL ENGINES...................................................................... 43

RPM & Electronic Ignition Systems....................................................................................................44 RPM & Proximity Sensors ..................................................................................................................44 RPM Sensors for Turbine, Wankel and Auto Engines .......................................................................44

ANGLE OF ATTACK (AOA) SENSOR............................................................................................................ 44 PNEUMATIC SENSORS ............................................................................................................................... 45 AIRSPEED................................................................................................................................................. 45 ALTIMETER ............................................................................................................................................... 46 MANIFOLD PRESSURE ............................................................................................................................... 46 MAGNETO-RESISTIVE COMPASS................................................................................................................. 47 GLIDESLOPE AND LOCALIZER..................................................................................................................... 48

Glideslope...........................................................................................................................................48 Localizer .............................................................................................................................................48

OAT......................................................................................................................................................... 49 PREFLIGHT SYSTEM CHECKOUT...........................................................................................................50

FIRST FLIGHT CHECKOUT .......................................................................................................................... 50 UPDATING FROM DVD/CD/FLASH ..........................................................................................................51 DOWNLOADING DATA TO A COMPUTER...............................................................................................51

Using the FTP Client in Windows.......................................................................................................51 Using CuteFTP Interface....................................................................................................................52 Using Other FTP Clients ....................................................................................................................53

APPENDIX A – SENSOR LAYOUT PLAN .................................................................................................54 APPENDIX B – EXAMPLE SENSOR MAPS..............................................................................................55

EXAMPLE 4 CYLINDER LYCOMING .............................................................................................................. 55 Voltage Divider ...................................................................................................................................55

LYCOMING IO360 B1E WITH ELECTROAIR IGNITION.................................................................................... 56 LYCOMING IO-360 C1C6 WITH LSE ELECTRONIC IGNITION........................................................................ 56 SUBARU IN LANCAIR WITH 2 VOLTAGE BUSS............................................................................................... 57

Voltage Divider ...................................................................................................................................57 TYPICAL 6 CYLINDER LYCOMING/CONTINENTAL SENSOR LAYOUT PLAN (ANALOG 3 CARD REQUIRED).......... 58 TYPICAL 6 CYLINDER LYCOMING/CONTINENTAL SENSOR LAYOUT PLAN (ANALOG 3 CARD REQUIRED).......... 58 TYPICAL 4 CYLINDER SENSOR WITH RESISTIVE FUEL LEVELS...................................................................... 59

APPENDIX C - EFIS/ONE CONNECTORS & PINOUTS ...........................................................................60 EXTERNAL POWER – AUX CONNECTOR ..................................................................................................... 60 MAGNETOMETER CABLE............................................................................................................................ 60 ALTITUDE ENCODER, AP DISCONNECT & AOA FLAP POSITION................................................................... 61 ANALOG 1................................................................................................................................................. 62

NOTE: THE 5 VOLT OUTPUT ON PIN 14 MUST BE USED ONLY FOR THE OUTSIDE AIR TEMPERATURE SENSOR. ANALOG 3 (OPTIONAL) ........................................................................................................................... 63 ANALOG 3 (OPTIONAL) ........................................................................................................................... 64 VIDEO - VGA............................................................................................................................................ 65 SERIAL A .................................................................................................................................................. 65

GPSS Format .....................................................................................................................................66 Aerosance – Available Engine Parameters........................................................................................66 Powersport – Available Engine Parameters.......................................................................................67

DVD/CD/FLASH CONNECTOR ................................................................................................................. 67 PFD / MDF.............................................................................................................................................. 67 CTRL PFD / MFD ................................................................................................................................... 67 GPS BNC CONNECTOR............................................................................................................................ 68

APPENDIX D - UPSAT SL30 INTERFACE ................................................................................................69 OVERVIEW................................................................................................................................................ 69 SL-30 DIGITAL OUTPUTS .......................................................................................................................... 69 DIGITAL CONNECTION DIAGRAM................................................................................................................. 69 DIGITAL TEST PROCEDURE........................................................................................................................ 70 SL-30 ANALOG OUTPUTS.......................................................................................................................... 70 ANALOG CONNECTION DIAGRAM................................................................................................................ 71 ANALOG TEST PROCEDURE ....................................................................................................................... 71

APPENDIX E - DISPLAY INSTALLATION .................................................................................................72 PANEL INSTALLATION ................................................................................................................................ 72 ELECTRICAL CONNECTIONS ....................................................................................................................... 74 DISPLAY PANEL CUTOUT ........................................................................................................................... 76

APPENDIX F - KEYBOARD MODIFICATION ............................................................................................77 APPENDIX G – PROBE VENDOR INFORMATION...................................................................................77 APPENDIX H – DIMENSIONS & POWER .................................................................................................78

EFIS/ONE ................................................................................................................................................ 78 DISPLAY ................................................................................................................................................... 79 REMOTE KEYPAD ...................................................................................................................................... 80 DVD/CD DRIVE........................................................................................................................................ 81 FLASH CARD READER. ............................................................................................................................ 82 EFIS/ONE SPECIFICATIONS....................................................................................................................... 83

APPENDIX I – CALIBRATING THE G METER ..........................................................................................84 APPENDIX J – FACTORY TEST HARNESS AND ADTEST .....................................................................85 NOTES: .......................................................................................................................................................87

LIMITED WARRANTY Blue Mountain Avionics, Inc. (hereinafter referred to as “BMA”) provides the following limited warranty. If you should have any questions, please contact the avionics dealer that sold you the BMA product or contact BMA directly. If during the one (1) year period from the date of original shipment from BMA, your BMA Product is found upon authorized inspection to have a defect in material or workmanship, BMA or an authorized representative will repair such defect or replace the defective unit without charge for parts or labor. Routine maintenance work and the results of normal wear are not covered by this warranty except as noted. BMA reserves the right to utilize reconditioned subassemblies as warranty replacements in the repair of the product. In the event BMA determines that the unit cannot be repaired, BMA will replace the defective unit with either the same model product or one that is reasonably equivalent. At BMA’s discretion, replacement units or repaired units may include software or hardware updates and revisions that alter some characteristics of the product. Should warranty service be required, the warranty period will be extended by the number of days that elapse between the date a defect is reported and the date that the repaired unit is returned. BMA assumes no responsibility for payment of any repair services performed by third parties including removal of the unit from the aircraft, inspection, packaging, handling, or installation unless such services are authorized in advance and in writing by BMA. BMA reserves the right to make changes, upgrades, and improvements to its products without incurring any obligation to install such changes, upgrades, and improvements in previously manufactured products. If during the warranty period, title to the aircraft in which the product is installed is transferred the remainder of the warranty may be transferred to the new owner by notifying BMA in writing of the transaction. Such notification must include complete address information for the original owner and the new owner as well as the N number and serial number of the aircraft and the serial number of the BMA product. Please contact BMA directly if you have any questions regarding the BMA limited warranty. This limited warranty is the only warranty which BMA makes with respect to your BMA Products. BMA disclaims all other warranties relating to the product including warranties of merchantability and fitness for a particular use. In any event, BMA shall not be liable for any incidental or consequential damages. Some states do not allow the exclusion or limitation of incidental or consequential damages and some states do not allow limitations on how long an implied warranty may last; therefore, the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights. You may also have other rights that vary from state to state. In the event any of the provisions of this warranty are found by statute or by applicable administrative or judicial entity to be unenforceable, the remaining provisions shall remain in force.

RESPONSIBILITIES OF BUYER Please read the Pilot’s Guide of your BMA Product and the equipment to which it is connected. The information provided in your Pilot’s Guide covers operation and safety precautions. This warranty does NOT cover expenses incurred due to a lack of understanding of the functioning of the product when it is operating as designed. In order for BMA to provide proper warranty service, you may be required to: Supply proof of purchase documents, permit BMA or an authorized representative to provide the applicable warranty service during normal business hours, retain and provide to BMA (upon request) any documentation of the installation of the product in your aircraft, provide BMA with all pertinent information regarding the symptoms, failure, or defect initiating the request for warranty service.

EXCLUSIONS This warranty does not cover the following; failures that are the result of improper installation, maintenance, or repair, failures that result from neglect, abnormal acceleration or deceleration, shock, modification, accidental damage, theft, vandalism, or exposure to extremes in temperature or relative humidity, radio frequency interference generated by equipment operated in violation of applicable FCC rules. All product or material returned to BMA must be properly packed and labeled with a Returned Material Authorization (RMA) number.

Installation Guide Page 1 of 87

Need Help? If you are experiencing difficulties, we recommend that you:

Read all documentation provided with your EFIS/One flight system.

Read all documentation that has been provided as part of an update.

Check our web site for latest revisions of the manual. This can be found in the Support section.

After you are familiar with the documentation, please call us 423-496-3510 or email [email protected]

Our office hours are 8:30am to 5:30pm Eastern Standard Time, Monday to Friday. Many times, you can get after hours help using email or by visiting our Discussion Group on our web site at www.bluemountainavionics.com

Safety Considerations Although your EFIS/One is a reliable system, it can and probably will fail at some point. Make sure you fly safe and always have an alternative form of instrumentation, especially for flight into instrument meteorological conditions. Flight into IMC or during night can result in serious injury or death if the EFIS/One system should fail and you do not have appropriate backup instruments. A two screen, single processor EFIS/One installation is not considered sufficient backup for IMC operations, as the failure of the processor will cause the failure of both screens. Dual processors, each with its own display provides far better redundancy but is still susceptible to errors causing the failure to both systems. IFR flight is a serious business – have two ways of doing everything critical to flight safety. The EFIS/One has not been certified under the FAA certification procedures. Please fly safe and have fun!


Important We cannot stress enough the importance of reading this manual THOROUGHLY! A complete understanding of how your system works and how it interconnects will save you hours of work and help us reduce unnecessary tech support calls. If you are not familiar with installation of avionics equipment you should seek the help of an authorized and trained Blue Mountain Avionics dealer or support personnel. Blue Mountain Avionics does offer a limited onsite installation option. The EFIS/One contains sensitive electronics which can be damaged through incorrect installation. Connect and test all equipment, on the bench, prior to installing in the aircraft. This will save you many hours later trying to rectify issues that will arise due to aircraft wiring. Blue Mountain Avionics strongly recommends purchasing an engine probe and wiring kit. Please call for availability.

Getting Started When you first receive your EFIS/One system, check that all the components listed on the packing list are included. If anything is missing please call us immediately at 423-496-3510. The following is the list of steps, in order, that BMA recommends are followed:

• Read this Installation Manual and AeroElectric Connection (see below). • Connect up your EFIS/One with the cables BMA Supplied. • Verify that the EFIS/One operates correctly before making changes. • Select your sensors and create a sensor map. We can help with this task if needed. • Connect your sensors and calibrate them on the bench. • Enter aircraft and engine data in the Setup screen. • Install the EFIS/One in the aircraft. • Recheck all calibration. • Perform preflight and in-flight checks.

The AeroElectric Connection (10th edition) is available from Bob Nuckolls. This is a great manual on aircraft wiring and is used by many individuals and kit aircraft companies. Please read carefully the section on ground loops. Ground loops are the cause of the majority of electronic difficulties in homebuilts, and they are the source of most EFIS/One support calls. They will cause erratic readings, especially with thermocouple devices. By Robert L. Nuckolls, III 6936 Bainbridge Road Wichita, KS 67226-1008 Telephone: (316) 685-8617 www.aeroelectric.com


Crimpers and Connectors. The EFIS/One can be physically installed in your aircraft with the basic tools typically required when building the aircraft. To make good quality wiring connections, quality crimp tools should be purchased. Use the correct crimp tool for what you are crimping. Daniels Manufacturing supplies high quality crimpers. For connections to the D-Sub connections on the back of the EFIS/One we recommend the AF8M Crimp Tool.

http://www.dmctools.com/Products/miniature_adjustabale_crimp_tools.htm If you decide to solder connections, please use a quality soldering iron and solder. You should also use heat shrink tubing on each connection.

http://www.lashen.com/vendors/CooperTools/weller.asp Installing the EFIS/One processor is as simple as setting your jumpers, finding a place for it and connecting the cables. The procedure in the next few pages shows you how to bench test the system, calibrate it, and install it in your plane. Don’t skip this section! You’ll learn how your system works and how not to damage it while installing.


EFIS/One System Component Overview The EFIS/One system is comprised of six individual components. Since many of these components are used to sense the aircraft’s attitude, it is imperative that they are installed correctly. The installation guidelines in this manual must be adhered to for proper operation. Whether you installed the system yourself or not, as a pilot, it is recommended that you be familiar with the components of the system as it may be necessary to check for proper installation if operational problems are encountered. The six EFIS/One system components are:

1. EFIS/One Processing Unit

The EFIS/One processor contains all the hardware required to perform the functions described in the Pilot’s Guide. The unit must be mounted close to level (within 2 degrees) when the aircraft is in level flight and with its connectors facing the left wing.

2. Display and Controls The EFIS/One processor supports up to two digital displays. Each display contains four control buttons and three control knobs on the right side of the display bezel. These displays are high quality transflective displays specifically designed for readability in sunlight. The upper control knob is for brightness. The four buttons control, from top to bottom

• AP – Autopilot • CKL – Check Lists • FLT – Flight Planning • SET – Settings

The functionality of each button and knob is described in further details later in this guide.


3. External Magnetometer

The Magnetometer is similar to a conventional flux gate. It senses the earth’s magnetic field and coverts this to a heading. It must be mounted in the aircraft as level as practical with the label on top and the X arrow parallel to the aircraft’s longitudinal axis. Great care must also be taken to mount this sensor away from magnetic interference. BMA recommends mounting this sensor at least 12 inches from any steel larger than a 10-32 machine screw. Improper mounting of this or any magnetic sensor will cause incorrect heading information. It may not read correctly inside buildings containing steel or while on concrete which has rebar in it!

This is the currently shipping BMA version of the Honeywell magnetometer. It is plug compatible to the HMR2300.

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4. External FLASH Reader

There have been several different models of DVD or CD drive shipped with the EFIS/One system. Currently we are shipping a solid-sFLASH memory reader as shown at the left. Ifyou wish to upgrade to the latest FLASH reader, please contact BMA.


5. GPS antenna

The EFIS/One is shipped with this small active GPS antenna. It should be mounted on your aircraft with a clear view of the sky and with the label facing the ground. From above the aircraft, the antenna should look like the picture on the left. The magnets on the bottom of the antenna are optional and may be reif not used in a permanent installation. If you wish to use an externally mounted antenna, any 5 volt active antenna will work. We’ve had good results with the Garmin antennas.

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6. Programming keyboard

The Programming Keyboard is used for setup purposes and is not needed during normal flight operations. It is small and is recommended that you store it in the aircraft in case it is needed during a trip away from home base. The keyboard can be used to simulate the bezel cUse the following keys while running the EFIS/Onethe Programming Keyboard plugged in.

NOTE: Do not use the bezel controls while the Programming Keyboard is plugged in. It will cause the bezel and/or keyboard to operate erratically. See Appendix F for a modification to correct this issue. Keyboards shipped after May 30th, 2003, do not exhibit this behavior.

Keyboard Functions:

Programming Keyboard Bezel Button/Knob 1 AP 2 CKL 3 FLT 4 SET

Left Arrow Outer Knob Left Right Arrow Outer Knob Right

Up Arrow Inner Knob Left Down Arrow Inner Knob Right

Enter Inner Knob Push


Sold State Attitude The processor takes data from the internal air data computer, inertial sensors, accelerometers, GPS receiver and magnetometer subsystems. The data from these sensors are used, along with complex mathematical algorithms to determine the aircrafts attitude. The GPS receiver and the data it provides is used to aid the attitude solution. Internal routines monitor the GPS and the quality of the data. When valid GPS data is available, the technique of GPS aiding for attitude display enables precision far beyond that which is attainable without its use. If the GPS signal is determined to be unreliable these routines eliminate its use for attitude solution. This does not mean that the attitude solution is inaccurate. On the contrary, even without GPS aiding the EFIS/One attitude far exceeds the requirements for traditional mechanical (moving mass) gyroscopic instruments. All of this happens transparently to the pilot. Most modern UAVs (unmanned aerial vehicles), some guided missile technology and other military applications use this GPS aiding technique. Without a built in GPS receiver, GPS aiding is not possible as remote or external receivers do not output the information necessary to create a GPS aided solution. The magnetic heading indicator or HSI is cross-linked to the Attitude system so that turning errors are removed. This is known as a slaved, all attitude magnetic compass. As all our sensors are solid state, they cannot be damaged when flying aerobatics.


Mounting & Environmental Requirements Although the system is fairly rugged, a little care in mounting will give noticeably better performance. Most of the sensors for the attitude solution are inside the processor box. The only exception is the magnetometer. For this reason the mounting of this processor box is critical. The processor box should be mounted in the aircraft with the picture of the airplane on top, and aligned with the longitudinal axis of the aircraft. It should also be as close to “flight” level as possible. It doesn’t have to be perfect, but it helps. EFIS/One can perform with mounting errors of up to 10° in pitch, roll, or yaw, but its performance may be degraded. Shock dampening is not required or recommended as the isolation from the aircraft movement can affect the precision of the Autopilot sub system.

EFIS/One Processing Unit Since EFIS/One detects motion with its internal inertial sensors. The mounting orientation of those sensors makes a real difference. The processor mounts with the long axis parallel to the wings, and the connectors to the left. Orient the processor using the aircraft printed on the top of the box. The CPU should also be mounted as level as possible longitudinally and laterally. Small errors can be corrected through software (less than 2 degrees of error). Refer to the image of the aircraft on your processor. Mount it the same way the airplane is heading.

Temperature EFIS/One is designed to be flown in a temperature controlled cabin and is not suitable for very cold conditions. Do not install the unit in the non-pressurized part of the aircraft if you are going to fly at altitudes where the temperature could drop below -20C. The unit will not operate below –20C without modification, although the same can be said for most engines. Once the unit starts, it will control its own temperature, but the unit will not start below –20C to prevent displaying possibly misleading information from frozen sensors. Please contact BMA for information regarding operation in arctic conditions.

Pitot and Static Connections There are five pneumatic ports on the left side of the EFIS/One. From top to bottom, these ports are Pitot, Static, Manifold Pressure, and two AOA connections. These ports use high quality oxygen rated medical connectors for easy quick connect and disconnect of the aircraft’s pneumatic lines. The fittings accommodate 3/16” and ¼” ID tubing.

• AOA has two ports for differential pressure. Blue Mountain Avionics has licensed the hardware and patented algorithms from Proprietary Systems to implement the same great AOA system within the EFIS/One. This optional AOA system, can be purchased separately from Blue Mountain Avionics, Inc. will be activated for those customers who purchase it.

• Manifold Pressure has one port for pressure. The port can be used to measure any air pressure

desired if manifold pressure is not needed.

• The Altimeter sensor has one port for absolute pressure and should be connected to the aircraft’s static port.

• The Airspeed sensor is a differential sensor, just like a standard ASI, and should be connected to

the aircraft’s Pitot and Static ports. NOTE: The sensors inside the EFIS/One are sensitive just like the old mechanical gauges. Do not apply pressure or suction without using the proper equipment found at your local avionics shop. A small amount of


pressure or vacuum makes a big difference to these sensors. Just for the record, a shop air line will blow these sensors (or any Altimeter) into very expensive bits. TIP: The pneumatic connectors on the EFIS/One are high quality, oxygen rated connectors. If you need replacement inserts or different sizes call BMA. These connectors are also available from Colder Products at 651-645-0091. The “body” which is mounted in the EFIS/One connector panel is part # PMC1602 and the straight insert is PMC2202. Various size inserts and angles are available. See

http://www.colder.com/asp_productoverviews/pmc_series.asp

Display

The EFIS/One display is about the size of a page in this manual (8.5” by 11”). For the latest templates, always check our website for any last minute updates we may have made. The EFIS/One supports one or two displays which can be located up to 25ft from the processor unit. The system is shipped with 6’ cables (there are two from the display to the processor) but longer lengths are available. Unfortunately, we do not have shorter LVDS cables available. NOTE: Do not cut the LVDS cable and splice back together to shorten. This will destroy the cable and will affect the quality of the displayed image. Just coil up any extra cable. See Appendix E for instructions on mounting the display.

Magnetometer The magnetometer must be mounted like the processor box: level fore and aft and left and right and aligned with the aircrafts longitudinal axis. The X, Y, and Z axis are marked on the top of the magnetometer. X points to the nose, Y parallel with the wings and Z straight down. As is noted elsewhere, the magnetometer supplied with EFIS/One is sensitive enough to provide sparkling performance. You can mount it anywhere, but if you keep it 2 feet from anything connected to the electrical system and 12 inches from any iron bigger than a 10-32 machine screw you’ll be amazed at what it can do for you. Also keep the magnetometer away from any ferrous metals. Mount with brass or plastic hardware or an industrial grade two sided tape. You may have to experiment a little with the best location. When checking the magnetometer you should be outside, not in a hangar (it has steel in it). Also, concrete has rebar inside and the magnetometer can be affected by this.

OAT Sensor

The outside air temperature sensor is the small transistor-looking device that comes with the three wires attached. Put it out in the slipstream and out of direct sunlight. Inside a belly scoop is great!

External FLASH Reader You only need access the FLASH reader for monthly updates or to download flight data. Therefore, you can mount it anywhere – it doesn’t need to be on the panel. Keep the cable less than three (3) feet long and you can place it wherever it is most convenient.


Items You’ll Need To configure or change the setup of your EFIS/One, you’ll need:

Programming Keyboard and a comfortable place to sit. This is supplied with your EFIS/One. Well,

the keyboard that is.

A good digital voltmeter.

A calculator.

A pad and pencil to write with.

A #1 Phillips screwdriver.

GPS antenna. This is supplied with your EFIS/One.

Connectors, crimp tools & pin insertion and removal tool.

Wire and tie wraps.

Jumpers for Resistive Channels, supplied with the EFIS/One.

You will need the following connectors and cables to hook everything up:

Connector Type

Quantity BMA Supplied

Use

DB-37 Male 1 O* Analog 1 * DB-25 Male 2 O* Analog 2 and Encoder Output* DB-44 Male 1 O* Analog 3, High Density Connector * DB-9 Male 2 YES Magnetometer Cable DB-15 Male 1 NO To Connect PC VGA Monitor LVDS 1 or 2 YES Commercial LVDS Video Cable for Display Display Serial 1 or 2 YES Connects Display Controls to Processor (Serial) 50 IDC 1 YES Connects the DVD/CD drive. Processor Power

1 YES 6 Pin Molex with 4 Pin Molex. Black or green is Ground. 4 Pin Molex plugs into DVD/CD drive.

Display Power 1 YES 6 Pin Molex. Black or green is ground. This cable has only two wires.

* O – BMA Offers pre-wired connectors and cable for Analog 1, 2 and 3.

Optional tools which are nice to have: 1. Long Magnetometer cable (25 foot DB-9 serial cable from computer store or make your own)

2. Alligator test leads.


Blue Mountain Avionics offers ready-to-use wire harnesses for analog ports 1 and 2 with pre-wired and labeled Teflon cable. We also offer the same for the Analog 3 port if you are using the optional Analog 3 card. Each cable uses Teflon wire, is 15’ long, and is numbered every 6 inches with the pin number the cable is connected to. This makes it much easier to identify which wire goes where. See our web site or call for further details.

NOTE: If you use these harnesses, do not leave the unused wires connected. They will act as antennas and transmit noise into the radios! Use a pin extractor and remove un-used wires.


Setup & Configuration Overview. Most of the functionality of the EFIS/One is controlled by software. The configuration specific to your aircraft, your checklists, and engine gauges will be made via various software menus and the use of the Programming Keyboard. The following 7 steps are necessary, in order, to setup the EFIS/One.

A. Connect up all EFIS/One hardware BMA provided. This includes the GPS antenna, DVD/CD drive, OAT Sensor and Magnetometer.

B. Select the sensors you are going to use with your engine. Some example engine configurations are

provided in Appendix B

C. Design your sensor map. This establishes which sensors will be connected to which EFIS/One inputs. Examples are provided in Appendix B

D. Connect up all the engine sensors that you will be using. This includes, fuel flow sensors, EGT

sensors, CHT sensors, pressure and temperate transducers and fuel level sensors.

TIP: It’s a whole lot easier to connect these items on the bench with a test wiring harness. Problems are much easier to find on the bench than when everything is buried behind the panel. Really consider doing this! Problems that can be solved in minutes on the bench take hours in the plane.

E. Calibrate each sensor either using the Presets we provide or manually. F. Use the Setup option to establish V Speeds, choose how sensors are displayed, and to enter other

aircraft data.

G. Setup Checklists for your aircraft.


Sensor Hook Up, Configuration and Calibration

A. Connecting Up On the Workbench Before installing the equipment in the aircraft, it should be powered up and tested on the bench first. This will ensure there has not been any damage during shipment. 1. Connect the EFIS/One processor to a 12 volt power supply using the cable supplied. The black or green

wire is ground.

NOTE: DO NOT USE A BATTERY CHARGER. Radio Shack sells 12V bench power supplies.

2. Connect the Display power leads (black or green is ground) to whatever DC power source you are using

to run the EFIS.

3. Connect the display to the EFIS/One with the LVDS cable to the connector marked PFD/MFD.

4. Plug your controller cable from the display to the CTRL PFD port on the EFIS/One processor.

5. Connect your GPS antenna to the processor and try to place it outside or near a window.

NOTE: EFIS/One is shipped with an active antenna that requires +5 volt power, through the coax, from the processor. If you are considering using another type of antenna than the one we supply, make sure it is an ACTIVE antenna that runs on 5 volts. Connecting a passive antenna to the EFIS/One usually destroys the GPS chipset.

6. Plug your keyboard into the CTRL PFD port on the EFIS/One processor.

7. Connect the Magnetometer to theMagnetometer port using the supplied cable.

8. This is also a good time to wire the OAT sensor to a DB25 and plug into Analog 2.

9. Apply power.


After initialization and system checks are complete, the EFIS/One display might look something like this:

TIP: If you prefer, a standard VGA PC monitor can be connected to the DB15, Video-VGA port on the EFIS/One. This way, the EFIS/One display can be left in the aircraft while the processor is removed to the bench for testing and calibration. Please see the note on keyboard functions on page 7 for controlling the EFIS/One without the control bezel.

At this time, the engine gauges might also be displayed and many of them flashing. Don’t worry, we’ll cover how the gauges are setup and configured for your engine. You should be able to perform the following basic tests at this point:

Verify the ADI shows pitch and roll when the processor unit is moved around.

Verify the heading indicator moves when you rotate the magnetometer.

NOTE: If the heading indicator moves when you pitch the processor don’t worry, this is normal at this stage. When mounted in the aircraft and both the magnetometer and processor move together, the heading will be stable when there are no heading changes.

Verify that the altimeter is correct. If you are within 3 miles of a known airport, we’ll set the altimeter automatically for you. If not you’ll have to set it yourself to the local barometric pressure using the SET page.

Make sure the GPS antenna has a clear view of the sky. If after power up, the EFIS/One has the ‘No GPS’ message shown at the bottom right, the GPS signal is not being received. The Lat/Lon position of your location will be displayed after EFIS/One locks onto the satellites. Additionally, a map of your location will also be displayed. If this is the first time the unit is started after being shipped, it may take up to 30 minutes for the clocks to initialize and to download ephemeris data. Please be patient.

Verify that pushing each button (4) on the bezel displays a menu.

Verify that the rotary knobs move the HSI bug and OBS course number on the HSI.


Verify that pushing the inner knob displays engine data (there may be no gauges defined).

Verify that the OAT, if connected, shows temperature in the Settings Page (push the SET button).

Verify that the brightness knob changes the screen brightness.

TIP: If the display is very dim, make sure that you have all three cables connected. The three cables are: LVDS cable, Ctrl PFD cable (DB9 cable) and Power Cable with TWO wires.

Assuming that all is well with the above tests, continue with configuring your EFIS/One. If not, please call BMA at 423-496-3510 so we can establish what is wrong.

B. Selecting Sensors A wide variety of engine sensors are available on the market today. The EFIS/One is designed to work with most sensor types including, resistive, voltage, frequency and capacitance with an adapter. However, we recommend the following sensors as they have been used before and calibration data is available. Other sensors can be used if you have its specification and are willing to perform a manual sensor calibration.

Recommended Sensors, Makes & Models

Sensor Use Supplier Manufacturer Type Comments EGT BMA Electronics

International T Use ungrounded

probes only. CHT BMA Aerosance R High Range Jumper RPM – Lycoming BMA, Aircraft

Spruce, Westach

Westach 303DH2T, 720-14R

F

RPM - Continental BMA, Aircraft Spruce, Westach

Westach 303DH2T ,720-14R

F

Pressure (Oil, Fuel, Coolant to 100 PSI)

BMA Measurement Specialties, P/N

MSP400-0-100-P-4-N-1

V Active Probes 0-5 Volts

Pressure (Hydraulic to 1500 PSI)

BMA Measurement Specialties, P/N

MSP400-0-2500-P-4-N-1

V Active Probes 0-5 Volts

Temperature (Oil, Coolant, IAT)

BMA VDO R Low Range Jumper

Temperature (Oil, Coolant, IAT)

BMA UMA R High Range Jumper

Fuel Flow 201A BMA, Floscan Floscan F Up to 24 Gals/Hr Fuel Flow 201B BMA, Floscan Floscan F Up to 28 Gals/Hr Fuel Flow 231 BMA ,Floscan Floscan F Up to 40 Gals/Hr Fuel Flow FT-180 BMA Electronics

International F 5 – 200 GPH

Flow Technologies FT8-8AEXS-LEAH4

Flow Tech Flow Technologies

F L-39’s

Amperage BMA BMA V +-/100 Amp Fuel Level V Vans Capacitance Fuel Level V Frequency (Vision) Fuel Level R Resistive


Type is V=Voltage, R=Resistance, F=Frequency, T=Thermocouple


Engine Selection & Required Sensors Engine Make & Model

EGT ITT

CHT Oil Pres

Oil Temp

Coolant Temp

Coolant Pressure

IAT RPM Fuel Pres

Fuel Flow (type)

Volts Amps Requires Optional

BMA Analog 3

Continental IO550*

6 6 1 1 n/a n/a 1 1 Floscan 231 1 1 YES

Continental IO550F*

6 6 1 1 n/a n/a 1 1 Floscan 231 1 1 YES

Continental TSIO550*

6 6 1 1 n/a n/a 2 1 1 2 Floscan 231

1 1 YES

Falconer V12

12 1 1 2 2 1 FADEC 1 FADEC 1 1 YES

Ivchenko AI-25 TL (L39 Jet)

1 1 1 1 FT8-8AEXS 1 1 NO

Jabiru 1 1 1 1 1 1 1 1 Lycoming O360

4 4 1 1 n/a n/a 1 1 Floscan 201B

1 1 NO

Lycoming IO360

4 4 1 1 n/a n/a 1 1 Floscan 201B

1 1 NO

Lycoming IO540

6 6 1 1 n/a n/a 1 1 Floscan 231 1 1 YES

Lycoming TIO540

6 6 1 1 n/a n/a 2 1 1 Floscan 231 1 1 YES

M14 9 9 1 1 n/a n/a 1 1 Floscan 231 1 1 YES Mazda 1 1 1 1 1 1 1 1 1 1 Walter 601 1 1 1 n/a n/a n/a 1 FT-180 1 1 NO Rotax 1 Subaru 1 1 1 1 1 1 1 NO

*Aerosance has a FADEC for Lycoming and Continental Engines.


Fuel Level Sensors

Fuel Probe Type Adapter Comments Vans Capacitance Capacitance Blue Mountain Call 423-496-3510

to order. Usually two are needed. These adapters output 0-5Volts.

Vision Micro Freq Princeton Electronics Call 616 281 5193 These adapters output 0-5 Volts

Westach Voltage None Required Outputs Voltage connects directly. Outputs 0-5 Volts.


C. Creating the Sensor Map. After you have chosen which set of transducers you would like for your engine, assign each transducer to a compatible input on either the Analog 1, 2 or 3 connectors. In Appendix B there are example sensor maps for the more common engines. There is also a blank form to create your own if you prefer to customize the map. Each sensor has a type of input that it can be used with on the EFIS/One. Match up the sensors you have selected to the available inputs, by type, on the EFIS/One to make sure there are enough of each type of input. TIP: Start by selecting how you will connect up the fuel level sensors. There usually is not much flexibility here as you have to use what is installed in your aircraft. Once this is done, this will determine what inputs are left for the remaining sensors. NOTE: Six cylinders or more, require the Analog 3 option to be able to accommodate 6 CHTS, 6 EGTS and all the other items you may want to monitor. If you have a Powersport, Aerosance (Continental) or Motec M48 FADEC controlled engine, see Appendix C, Serial A.

D. Connecting Sensors After you have created the sensor map you will then be able to connect up each sensor to the appropriate type of channel and its associated pin and connector on the EFIS/One. Use high quality Teflon wire, connectors and crimp tools to make your connections.

Making a Test Harness You’ll need to make some cables to install EFIS/One in your airplane, and it’s worth having a set to test with and to gain some experience before going to the hangar and trying to do the same thing upside down inside the plane. Here’s what we need to make:

1. Test plug for Analog 1 2. Test plug for Analog 2 3. Test plug for Analog 3 (if used)

After you have created your sensor map create a bench test harness connecting at least one of each type of sensor. If you can’t make things work on the bench, you probably won’t be able to make them work in the aircraft. If you need help with your sensor map, please email [email protected] and we will help you with the sensor map layout.

NOTE: The RED wire on a type K thermocouple is NEGATIVE. The YELLOW is positive. Once the sensors are connected, proceed to the next section to calibrate and verify of each sensor.

Factory Test Harness and ADTEST A schematic is provided in Appendix J to make a factory test harness. This harness is used in conjunction with the test program ADTEST to verify the function of each input of the EFIS/One. When AD test is run, it generates various signals and the test harness passes these signals into the various voltage and resistive channel. Then results are then displayed for verification. If you are experiencing problems with your EFIS/One and it’s ability to correctly read probes, making this harness and using ADTEST from the Command prompt will help identify where the problem lies.


E. Sensor Calibration After Powering up your EFIS/One system with sensors connected you’re ready to see how these sensors are interpreted by the processor and how they can be calibrated to create engine gauges. First you will need to access the EFIS/One Command Shell and then select Sensor Calibration.

EFIS/One Command Shell The EFIS/One Command Shell is where access is gained to other, non-flight functions. The Command Menu has these items on it:

• EFIS/One Run the normal system software. • Setup Used to setup sensors, V Speeds and Other Configuration Data • Sensor Calibration Calibration of Engine Sensors • Checklist Maintenance Setup of custom checklists • Command Shell Access to File Transfer, Software Updates.

To get to the Calibration screen, plug your Programming Keyboard into the EFIS/One processor (CTRL MFD or CTRL PFD). Apply power to the EFIS/One and wait for the normal flight display to show. Touch the ESCAPE key to get out of the EFIS/One program to the Command Shell then use the up and down arrows to select Sensor Calibration. Touch <Enter> to go into Sensor Calibration. When all changes are complete, press the Esc key to exit Setup. All sensors must be calibrated either using the Presets BMA provides or manually if needed. WARNING: Never power off the EFIS/One while in the Setup or Calibration options. This could result in lost or corrupted data and will require the help of technical support to recover backup data. In some cases, the processor may need to be returned to the factory.

About Analog to Digital Conversion Before calibrating a sensor let’s talk about how they work and how the EFIS/One interprets and processes a sensor. For example purposes, we are going to use a simple resistive sensor like a Pressure Transducer. Let’s say this hypothetical transducer has the following resistance table.

PSI Ohms0 100 50 200 100 300

The EFIS/One needs to read and store the resistance value provided by the sensor as a digital representation. This is achieved using Analog to Digital converters which are built into the EFIS/One. The standard EFIS/One has 16 A to D converters and an additional 16 are available with the optional Analog 3 card. The A to D converts the resistance value to a number between 0 and 4095. We call this the AD Value. So, when our hypothetical pressure transducer is connected to the EFIS/One, we might find that:

PSI Ohms AD Value0 100 700 50 200 1400 100 300 2100


Now, we have a value in the computer that represents a resistance. The problem is that the pilot doesn’t care about AD Values and is more interested in the actual pressure in PSI. So, in our Calibration program, we select what the pilot sees for a given AD Value. We call this value the Display Value. In this example, we will display the PSI.

PSI Ohms AD Value Display Value0 100 700 0 50 200 1400 50 100 300 2100 100

All sensors work using A to D converters and then converting the incoming (from the sensor) AD value into the Display Value which is what is displayed to the pilot. The computer uses a mathematical algorithm to interpolate and extrapolate display values for any incoming AD value. For example, using the above table, an AD Value of 1050 would be interpolated to give a display value of 25 PSI. Likewise, an AD Value of 4200 would be extrapolated to give display value of 200 PSI. BMA provides sets of AD and Display Value pairs, know as a Calibration Array, for certain known sensors making calibration a simple process. However, almost any sensor can be calibrated using the above method and against a known reference. The following sensors have Presets for the Calibration Array in version 2.15.

• Grand Rapids: 30 PSI • Grand Rapids: 150 PSI • Grand Rapids: Temperate • Westach: 30 PSI • Westach: 50 PSI • Westach: 100 PSI • Westach: 300 PSI • Westach: 500 PSI • Westach: 1500 PSI • Westach: Temp • Aerosance Resistive CHT. • Old CHT (Type J) • New CHT (Type J) • Old EGT (Type K) • New EGT (Type K) • Floscan 264PB-15 • Floscan 201A • Floscan 201B • Floscan 231 • Westach 303DH2T


Overview & Input of Data There are 16 input channels in the EFIS/One, numbered 0 through 15. With the optional Analog 3 card, 16 more sensors are available and are numbered 16 through 31. The following channel numbers are reserved for internal sensors and should not be changed.

Reserved Channel Numbers

Sensor # Channel #

Reserved Use

1 Yaw 2 Roll 3 Pitch 6 OAT 8 AOA 9 Manifold Pressure10 Altimeter 11 Airspeed 12 G Meter 16 Glideslope 17 Localizer

Do not change any of the Reserved Sensor calibration entries unless instructed to do.

Valid Entries

When calibrating a sensor, two columns of numbers are entered which determine how the sensor will be interpreted by the processor and then converted and displayed to the pilot. This table is referred to as the Calibration Array. AD Values must be between 0 and 4095. Duplicate entries for AD values will result in the system deleting one entry. The Display Value can be any decimal number between +/-32000. Again, duplicate values will be discarded. Also AD and Display values cannot both be 0.

You must have two (2) data points for calibration to work. Try getting one at the low end of the range and one at the high end. The way the algorithm works guarantees that every point you enter is exact, with smoothly curved estimates between points. Some sensors are very non-linear, so it’s good to get several points in your area of interest. The more entries made into the Calibration Array the more accurate the sensor can be. A total of 15 entries are currently supported.


Calibration Array Data Entry When entering the Sensor Calibration mode, a screen similar to the following screen will be displayed. Use the up and down arrow to select the sensor you wish to calibrate. Each sensor corresponds to inputs on analog 1, 2 or 3 connectors or to a reserved sensor.

To navigate about this screen use:

• TAB key to moves from field to field • ESCAPE key to save changes and get back to the Command Shell Menu • Up Arrow / Down Arrow spin through selection choices (Sensor Name on this screen) • Backspace erases characters before the cursor

NOTE: Never power off the system while the calibration screen is displayed. This may corrupt your data.


Just TAB from field to field, type in the values you want and then touch ESCAPE when you’re done. Let’s go through each section so you’ll be comfortable with what’s happening. Each sensor has a:

• Damping % • Deadline • Deadline Type • Current Reading • AD Offset • Calibration Array • Load Preset • Input Range

Each of the above settings will be made for each of the various engine sensors attached to the EFIS/One. Make the EFIS/One show the correct “Display Value” for each of the engine sensor you have selected. If the Display Value is wrong here, it will be wrong in the Setup option and wrong on the Engine Display in the EFIS/One’s normal display.

Damping %

EFIS/One samples each engine sensor about 10 times per second. Needles can jump around as fuel sloshes or pressures pulsate in normal operation. This filter can be thought of as an average (well actually it is a Butterworth low pass filter) of the last N points, which smoothes things out for display. Numbers can be chosen between 0 and 1000, with higher numbers making the gauge more damped and slower to respond. Since every airplane is different, we recommend starting with 50 to see if it produces the results you like. 100 results in a 1 second time constant, and really is quite a lot of damping.

Deadline

Deadlines allow us to establish a value which indicates the sensor has in some way failed. A resistive sensor will read 4095 when open and 0 when shorted. If you are using a standard 240 Ohm sensor, anything above 300 Ohms indicates a wire fell off. The same applies to voltage inputs and thermocouples. Use this feature to flag sensors which have failed. EFIS/One can then detect a sensor that may be broken. A display value above or below the Deadline indicates a dead sensor. This will be displayed to the pilot as three dashes “---“.

Deadline Type

Deadlines may be None, Min or Max indicating unused, below or above the Deadline value respectively.

• A Min Deadline fails the sensor if the displayed value falls below it. • A Max Deadline fails the sensor if the displayed value is above it.

Current Reading

The EFIS/One calibrate program displays, in real time, the AD value being read from the selected sensor/channel number. It then, also in real time, uses the Calibration Array and any AD offset, to convert this AD value to a Display Value. This way as changes are made to the Calibration Array or AD offset, the results are immediately obvious. Also, as the sensor itself changes, the Display Value result also changes.

GS/LOC Good Flag

If the Glideslope Good and Localizer Good Flag are present while the GS and LOC sensors are being calibrated, the flag status will be show next to the Current AD value.


TIP: As each sensor is hooked up, check out how the EFIS/One is going to interpret that sensor by watching the reading in the “Current Reading” box.

AD Offset

Some sensors vary from batch to batch and with the length of wire installed. Use this entry to make a correction to the incoming AD value without having to reenter the entire calibration array. The entry is subtracted from the Current AD reading and the result is then used. For example, if your RPM is reading slightly high, enter a small value in the AD Offset to get the RPM to decrease. Enter a small negative number to the RPM to increase. TIP: In general the Presets we provide for a sensor are correct but may need an adjustment with an AD Value offset. Offsets bigger than 200 usually indicate something is wrong and should be corrected.

Load Preset

Blue Mountain Avionics provides a calibration array for many known sensors. If you have a sensor that we have already calibrated, scroll through the choices to select the sensor and then select the “Load Preset” button. This will populate the Calibration Array with know AD and Display Value pairs. You should still check the sensor you have against the array to make sure it is reading correctly. For example, if you have 40 PSI on a pressure sensor, is the EFIS/One also showing 40 (or close to it)? The AD offset feature could be used to make small changes if necessary.

Calibration Array

The box labeled Current Reading at the top of the Calibration Array is a real time reading of what the computer is reading (AD Value) and the real time conversion, using the Calibration Array, into a Display Value. If there are no entries in the Calibration Array the Display Value will be the same as the AD Value. As entries are made into the table the computer will start to calculate and display a value in the “Display Value” box at the top of the table. Remember Display Value is what the Pilot will see. TIP: If the Current AD Value is 0 or 4095 the sensor is probably not connected or is producing a value (resistance or voltage) too high or to low for the A to D to read. A resistive channel with nothing connected will read 4095, a voltage channel with nothing connected will read 0.

Example, Creating A Digital Voltmeter

Let’s check to make sure you understand how everything works, how to run through the Calibration screen, and while you’re at it, checkout the A/D converters in the EFIS/One processor. 1. Using a male DB-25 connector for Analog 2, connect a wire from Pin 1 to Pin 13, which is channel

number 4, a voltage input. Solder a lead to Pin 3 to use as a ground. Pin 1 is a +4.5 to 5v output, and Pin 13 is connected to voltage input on sensor 4. Channel 4 is a voltage input which accepts a voltage from 0 to 10 volts. Some later units the voltage input is 0-30V.

2. Turn on the EFIS/One. Using a digital voltmeter as a reference, check the voltage between Pin 13 and

Pin 3 and write down the value on the voltmeter. It should be about 4.8 volts. 3. Use the Esc Key to get to the Command Shell menu and select Sensor Calibration. Now use the down

arrow key to select sensor 4. 4. Sensor or channel 4 reads from 0 to 10 volts, which corresponds to a range of 0 to 4095 possible AD

values. In other words, an AD value of 0 is 0 volts and an AD value of 4095 is 10 volts. Each AD count is therefore = 10/4096 or 0.0024 Volts.


If Pin 3 is currently at 4.8V, the AD Value should be = input voltage/10 * 4096 Or 4.8/10 * 4096 = 1966. If you are not getting between 1800 and 2048 (4.4V and 5.0V), stop and call support for help. We checked the EFIS/One before it left the factory, so something happened and it must be repaired. NOTE: The actual voltage of Pin may vary from 4.5 to 5.0 volts. Any other voltage indicates a possible problem with your EFIS/One. If you want to create a voltmeter from sensor/channel 4, enter the three (3) calibration points in your table:

AD Value Display Value1 .0024 2048 5 4095 10

TIP: We didn’t enter zero A/D and zero Display as a value, since it gets ignored.

We set 2048 to 5 volts as we know the channel measure 10V at 4095 and it is linear. We set 4095 to 10 volts. We set 1 AD count to .0024 volts (which is 10 / 4095)

This channel is now calibrated as a precision voltmeter. Compare the EFIS/One Display Value with a volt meter across pin 13 and pin 3. If the display is jumpy, just change the value of the Damping %.

To measure voltages higher than 10, such as aircraft battery voltage (either 13.8V or 27.2V) a voltage divider must be used to reduce the voltage to between 0 and 10V. We’ll cover dividers later in this document when we talk about voltage sensors.


F. Setup Screen The Setup Option is used once you have calibrated your sensors and achieved the desired Display Value and Calibration Array. Once this is done, use the Setup screen to:

• Enter the Aircraft’s V speeds (in knots). • Select the Fuel Units and Source for Measuring Fuel Flow. • Select an Aircraft Icon. • Select AOA System, if installed (disabled in 2.15). • Select the use of Serial A • Configure how each sensor/engine gauge will be displayed to the pilot.

To get to this screen, plug your Programming Keyboard into the EFIS/One processor (CTRL MFD or CTRL PFD). Apply power to the EFIS/One and wait for the normal flight display to show. Touch the ESCAPE key to get out of the EFIS/One program to the Command Shell, and use the up and down arrows to select Setup. Touch <Enter> to go into Setup. When all changes are complete, press the Esc key to exit Setup. NOTE: Never power off the system while the setup screen is displayed. This may corrupt data.


Navigating the Setup screen is easy enough:

• TAB moves from field to field • ESCAPE drops you back to the shell • Up Arrow / Down Arrow spin through selection choices (like Fuel Units) • Backspace erases characters before the cursor

Just TAB from field to field, type in the values you want and then touch ESCAPE when you’re done. Let’s go through each section so you’ll be comfortable with what’s happening.

Airspeeds Each of the V speeds above can be set to draw the proper colored arcs and prompts on your ASI tape. Taking them one at a time:

• Vx Best angle of climb and indicated on the speed tape for convenience. • Vy Best rate of climb and is also indicated on the speed tape. • Vs0 Stall speed in landing configuration. • Vfe Maximum flap extension speed. • Vs1 Stall speed in cruise configuration. • Vno Normal Operating speed. • Vne Never exceed speed.

The colored arcs are indicated on the EADI (Electronic Attitude Indicator):

• White Arc From Vs0 to Vfe -- Stall Dirty speed to Max flap speed. • Green Arc From Vs1 to Vno -- Stall Clean speed to beginning of Yellow Arc. • Yellow Arc From Vno to Vne • Red Line Vne and higher.

NOTE: Although the airspeed tape can be calibrated in MPH it is strongly recommended to use knots. This is because wind speed calculations assume the airspeed is knots and will be inaccurate if it is not knots. Also any speed data derived from the GPS receiver and displayed on the EADI and EHSI is also in knots. It makes sense and is safer to keep everything in knots. TIP: To convert miles per hour (statute, US) to knots (nautical, US): KNOTS = MPH / 1.151

Aircraft Parameters

Fuel Flow

Use the Up Arrow / Down Arrow to compute fuel flow from one or two fuel sources, labeled A and B. Enter the sensor number which will be used for the A and B. Usually the sources for A and B are one of the four frequency sensor inputs. These inputs are on channel/sensor 0, 13, 14 or 15. Select Choices: A - Use this option if you have on fuel flow sender and it is on the channel specified in the A box. B - Use this option if you have on fuel flow sender and it is on the channel specified in the B box. A+B or A-B. These selections allow you to easily compute fuel flow from a single sensor, or from the sum or difference of two sensors. A common need for A-B is fuel injection loops with return lines. A is the flow to the engine and B is the flow back to the tank.


Fuel units

Use the Up Arrow / Down Arrow to choose Gallons, Pounds Liters or Kilos. Of course, you should have calibrated the Fuel Flow sensors in the same unit of measurement.

Serial A:

The Serial port on the back of the EFIS/One can be used for multiple purposes although only one can be selected during setup. These choices are: • None – Factory Default • Aerosance – FADEC Computer • PowerSport – FADEC Computer • Motec M48 – FADEC Computer • GPSS – GPSS Serial output message for third part Autopilt. • NMEA 0183 – GPS Message for external devices • UPS SL30 • UPS SL40 • I4 Serial – Custom Interface • Endeavour – Custom Interface

Additional Serial Ports Option We now offer an option that adds four more serial ports to your system. This will enable you to add new features to your EFIS as they become available. Especially useful now for those with FADEC and a Garmin AT radio that communicates via serial connection..

Blue Mountain Avionics supports Aerosance and Powersport FADEC system in version 2.15 software. The FADEC computer that runs your engine can usually transfer data about engine parameters to the EFIS/One for display as a gauge. This avoids the need for duplicate sensors on the engine for many parameters such as oil pressure, fuel flow, etc. See the Appendix C for details about each FADEC type and the data it can provide. TIP: You can still use all the 16 analog engine inputs if you select FADEC. This provides the ability to get more than 16 gauges with the standard EFIS/One (no Analog 3 option).

AOA Type

Choose one of the following:

• PSS - Proprietary Systems • None

Airplane Icons

Customize the look of the EFIS/One display with an aircraft symbol of your choice. The following graphics are available in 2.15

F22 – Some of you guys must have one of these.

RV

Cozy.


Lancair

Now, if you want something different, just email us your icon and we will try to include it in the next release. The specification for the bitmap is as follow: We need two bitmaps: Large bitmap is 50 by 50 pixels, 24 bits per pixel. Small bitmap is 25 by 25 pixels, 24 bits per pixel. Black (RBG 0,0,0) will be shown as transparent. To get black lines in your Icon, use an RGB value of 1, 1, 1.

Course Leader.

The course leader line is drawn on the moving map as a black line and extends out from the aircraft to where you will be in a certain number of minutes. Set the number of minutes here. If you choose “Track Up” in the SET window, the pointer will always point to the top of the screen. It may not always be directly in front of the aircraft since we take crosswind into account. Just put the end of the black line on where you want to go and the plane will be there in the number of minutes entered here.

Engine Gauges The EFIS/One supports up to 16 engine gauges as standard and 32 with an optional card. The additional 16 channels (A/D inputs) are needed for engines with 6 or more cylinders, or twin engines. Engine gauges will be displayed to the pilot when: 1. The pilot pushes the inner knob on the Bezel. Push again to dismiss. 2. An engine gauge reaches the defined Redline. 3. An engine gauge has exceeded its max rate of change. 4. Or if the pilot has dismissed the gauges after event 2 or 3 above and five minutes have passed with the

gauge still out of tolerance

EHSI Engine Gauges

Two engine sensors can be displayed in the lower left corner of the EHSI. Normally it makes sense to choose Manifold Pressure and RPM for piston aircraft and ITT and N1 for a turbine aircraft. These two sensors are always visible and don’t require the engine gauges to be displayed to see them.

Sensor Channels and Ranges

The first two sensors are defaulted to RPM and Manifold Pressure, although you can make them anything you like. The Engine Gauge screen has room for eight gauges per row and a total of four rows. This screen assigns what you want each gauge to be called, its input source, and in what position it will be displayed.


The screen lets you configure each line (1-4) of gauges at a time. Use the box that shows Line 1 and change it to Line 2 / Line 3 / Line 4 by using the up and down arrow keys. This brings up a page of eight (8) positions for you to put in whatever gauges you like and where you want them.

The image above represents an example configuration for a 4 cylinder engine. Line 1 and Line 2 definitions were completed to create this screen. A gauge can be left unused to create spacing if you prefer. The Last Sensor on Line 1 was left unused in the example. Below are the two Setup screens that created the above example.

Line 1 First 8 gauges


Line 2, second row of gauges. Each gauge has a hardware Channel Number or FADEC input assigned along with values for Title, Fuel, Min, Max, Nearest, Max Rate, Redline, and Redline Type. If a channel is dedicated to something inside the EFIS/One, or hardwired for a specific use, the default name will appear to the right of the sensor number. If you wish to change this, just type what you want in the two boxes to the right. For example, RPM is usually a high frequency input and used for monitoring RPM. However, in some cases, the high frequency inputs are used for fuel flow and hence you would re-label this “Fuel Flow” in the two boxes provided. Each gauge has two label boxes and each box will allow up to four characters.

The first two boxes are for the Source and Channel you want this gauge to display. Source can be a Sensor (used for all Analog 1, 2 and 3 connections), FADEC, or None. Channel is the EFIS/One hardware sensor/channel you are assigning to this gauge position. Channels are detailed in the Input Channel Map.

Fuel checkbox

The checkbox next to the sensor name indicates that this is a fuel tank to be measured before takeoff. Checking this box includes this sensor as a tank level in the initial fuel calculations for the “Fuel Onboard” which is displayed in the settings screen. See Pilot’s Guide.

Min

The smallest value you want displayed – bottom of the bar graph

Max

The largest value you want displayed – top of the bar graph


Nearest

Round off a gauge readout to nearest NN units. For example fuel can be rounded to the nearest gallon, RPM to the nearest 2 revolutions, EGT to the nearest 10 degrees, etc. Since this is a digital instrument, it can be “too” precise. There’s no sense in watching a sensor jitter because you’re displaying more precision than is necessary.

Type

In version 2.16 or later, gauges can now be displayed as either a “dial” or “tape”. Try each type out and see what is best for you. Tape displays are good for EGT/CHT’s as it is easy make a quick visual comparison possible.

Max Rate

Maximum rate per minute that this gauge can move without popping up an alert. Great to watch for shock cooling, and dropping pressures. If the engine gauge reaches this rate, all gauges will be displayed and the name of the out of limit gauge will flash in yellow.

Redline

The value above which the gauge is shown as red. If the engine gauge reaches this value, all gauges will be displayed and the name of the out of limit gauge will flash in red.

Redline Type

Redline can be Min, Max or None. Typically fuel level gauges have a Min redline, oil temperature has a max redline, while some gauges, such as a manifold pressure gauge in a fixed pitch prop and without a turbocharger, may not need a redline at all.

Example Sensor Setup

The sensor is called “Fuel Flow” - Sensor names can be up to 8 characters, 4 on each line Min is 5. The bar will start at 5 Max is 18. The top of the bar is 20 gallons/hours Nearest is 1 Round to nearest 1. (Who wants decimals)? Max Rate is 0 No alert. Redline is 18 Start flashing when Fuel Flow exceeds 18 gals/hour Redline type is a Max Above 18 will be red.


In this example, Sensors 7 and 18 are Fuel L and Fuel R tank levels. Min in not set. Max is set to 60 Tanks don’t hold more than that. Nearest is set to 1 Round to the nearest 1 Max Rate Not used Redline is 5.0 5.0 and is a Minimum Level.

NOTE: the Checkbox next to these gauges indicates that this tank is to be measured before takeoff for fuel totalizer calculations. This happens when “Pressing” the Fuel Onboard button in the settings page of the EFIS/One system software.

Gauge Layout Considerations

Think about how you want your gauges to appear in the pop-up screen. You can arrange them any way you like including making blank spaces by setting Sensor types to “None” as discussed above. It makes for a quick scan if you choose your active ranges to put each gauge in the middle of its range when all is well. A quick look straight across is all you need.

Documenting your Settings with SETPRINT. A new utility has been added in version 2.16 or later which takes your configuration and calibration data in the EFIS/One and creates a text file which can then be printed on another computer. To create this file, run the SETPRINT command from the Command Shell menu item. The SETPRINT program will create the file SETTINGS.TXT. Transfer this file to your PC and print it out. This will create a paper record of most of the EFIS/One settings.


G. Creating Checklists The Checklist Maintenance feature on the Command Shell menu is quite straightforward. The screen is pretty simple to follow – use the arrow keys to move around, and touch Enter to push the buttons on-screen for New, Delete and Save. That’s all there is to it.

Select New to Enter a New Checklist.

Type in a Title for your new checklist and then enter each checklist item in the boxes below the title. TIP: If you are proficient with computers you can edit each checklist with a text editor. Each checklist is stored in a separate file starting with the following name: CHKLIST.000, the next file is CHKLIST.001 and so on. These are text files. The first line in the file is the Title, followed by each checklist item on a separate line.


Sensor Types The A to D conversion in the EFIS/One provide 12 bits of precision for all 32 inputs. Inputs are mapped to pins on the DB-37, DB-25 and DB44HD connectors labeled Analog 1, Analog 2 and Analog 3 respectively. The optional Analog 3 card provides an additional eight (8) type K thermocouple inputs and eight (8) 0 – 10vdc voltage inputs.

Available Sensor Inputs These channels can be assigned to whatever sensor you wish and can appear as part of the Engine Gauge Display.

AD Channel Type 0 Low Frequency Input A, Normal used for Fuel Flow A. 0 -220 Hz. 4,5,7 Three 3 Voltage inputs 0-10 volts DC

On some newer processors, channels 4 and 5 can measure 0-30V. 13 High Frequency Input A, Normal used for RPM 220-2200 Hz 14 High Frequency Input B, Normal used for RPM 220-2200 Hz 15 Low Frequency Input B, Normal used for Fuel Flow B. 0 -220 Hz. 18,19,20,21,22,23,24,25 8 Resistance or voltage inputs.

Jumper sets channel for: 0 to 500 Ohms 500 to 5000 Ohms or 0 to 1.67 Volts DC (No Jumper, factory shipped)

26,27,28,29,30,31 Six (6) Thermocouple inputs Type K Recommended. 32,33,34,35,36,37,38,39 Eight (8) Thermocouple inputs, (OPTIONAL Analog 3 Card) 40,41,42,43,44,45,46,47 Eight (8) Voltage inputs

0 – 10 Volts DC (OPTIONAL Analog 3 Card) Any resistive input can be converted to read a voltage (0 – 1.67vdc) by not installing a jumper on that channel. The above table shows how EFIS/One is configured out-of-the-box. TIP: Any voltage can be measured by using a voltage divider to reduce the voltage to either 0-10 volts for 0-1.67 volts. If you need help with the values of the two resistors, please contact BMA.


Standard - Input Channel Map This map shows where every sensor is connected, to which channel inside the EFIS/One and to what pin on which connector. Wiring details for each connector are in tables in Appendix C. The optional, Analog 3 card inputs are not shown here. AD Channel

Analog 1 Pin Number

Analog 2 Pin Number

I=Input O=Output

Description Type

22 I Glideslope signal is flyable if this pin > 250 mV

Glideslope GOOD

23 I Localizer signal is flyable if this pin is > 250 mV

Localizer GOOD

19,25 1,14 O +5v 35 2,15 O +12v 14,24,27,30 3,16,17,18,19

,20 O Ground

0 7 O Low Freq A Frequency 0-220 Hz. Normally used for fuel flows

1 n/a Yaw – Reserved Internal Use Only 2 n/a Roll – Reserved Internal Use Only 3 n/a Pitch – Reserved Internal Use Only 4 13 I Voltage 1 Voltage input, 0-10V

or 0-30V 5 12 I Voltage 2 Voltage input , 0-10V

or 0-30V 6 23 I OAT - Reserved OAT sensor yellow wire. 7 11 I Voltage 3 Voltage input, 0-10V Only 8 Pneumatic

Input AOA Sensor Reserved

Internal AOA sensor and port

9 Pneumatic Input

Manifold Pressure Or Your Choice

Internal MP sensor and port

10 Pneumatic Input

Altimeter – Reserved

Internal Alt sensor and port

11 Pneumatic Input

Airspeed – Reserved

Internal AS sensor and port

12 n/a G Meter - Reserved

Internal

13 9 I High Freq A Frequency from 200-2000 Hz

14 10 I High Freq B Frequency from 200-2000 Hz

15 21 I Low Freq B Frequency from 0-220 Hz 16 4 I +Glideslope UP +GS signal form radio 16 3 I -Glideslope

DOWN -GS signal from radio

17 5 I -Localizer LEFT -Localizer signal from radio 17 29 I +Localizer

RIGHT +Localizer signal from radio


AD Channel

Analog 1 Pin Number

Analog 2 Pin Number

I=Input O=Output

Description Type

18 6 I User R1 Resistive input 0-500 Ohms or 500-5000K

19 7 I User R2 0-500 Ohms or 500-5000K 20 26 I User R3 0-500 Ohms or 500-5000K 21 8 I User R4 0-500 Ohms or 500-5000K 22 9 I User R5 0-500 Ohms or 500-5000K 23 28 I User R6 0-500 Ohms or 500-5000K 24 10 I User R7 0-500 Ohms or 500-5000K 25 11 I User R8 0-500 Ohms or 500-5000K 26 36 Thermocouple + Thermocouple input 1 26 17 - Thermocouple input 1 27 18 Thermocouple + Thermocouple input 2 27 37 - Thermocouple input 2 28 15 Thermocouple + Thermocouple input 3 28 33 - Thermocouple input 3 29 34 Thermocouple + Thermocouple input 4 29 16 - Thermocouple input 4 30 31 Thermocouple + Thermocouple input 5 30 12 - Thermocouple input 5 31 13 Thermocouple + Thermocouple input 6 31 32 - Thermocouple input 6

Jumper Settings for Resistive Sensors Resistive sensors can be connected on channels 18 through 25 and come in one of two ranges:

1. < 500 Ohms 2. 500 – 5000 Ohms

NOTE: Without any jumper installed the above channels are resistive in type and will measure 0-1.67V. When shipped from the factory, there are no jumpers installed.

AD Channel

Jumper to insert for 5-500 Ohms

Jumpers to insert for 500 – 500-5000 Ohms

18 G2 G1 19 G4 G3 20 G6 G5 21 G8 G7 22 G10 G9 23 G12 G11 24 G14 G13 25 G16 G15

To set a Jumper, remove the EFIS/One CPU top cover and push a shorting jumper (supplied) onto the appropriate pins (check the above chart). Here’s where the jumpers are found on top of the board: NOTE: Do not install both jumpers at the same time for a single channel, i.e. do not install both G10 and G9.


There are no jumpers installed in the picture and you can clearly see the jumper names in white labeled on the board. TIP: Write down the serial number of the airdata board. This is the same with the jumpers as shown above.

Voltage Inputs Voltage sensors (channels 4, 5 and 7) will read a voltage from 0 -10 volts. New processors will read 0-30 Volts on channels 4 and 5. Zero volts produce an A/D count of 0, and 10 (or 30) volts produce an A/D count of 4095. NOTE: Please remember that aircraft electrical systems are 12 volts, which usually measures around 13.8 volts when being charged. If you want to measure buss voltage use a voltage divider if required. A voltage divider is not needed on processors that can measure 0-30 Volts on channels 4.5.

Voltage Divider Connect a pair of 10,000 Ohm resistors in series to cut the buss voltage in half to measure voltage. Connect the top of the divider to your aircraft voltage bus, the center tap to the Voltage channel of your choice (channel 4, 5 or 7) and the bottom to ground. You will then be able to cover the entire range of your 12V electrical system. TIP: Remember Ohm’s Law? Volts = Amps * Ohms or V=IR A divider with a pair of resistors R1 and R2 produce a voltage Vout at the junction given a voltage across them both V1: Vout = V1 * [ R2 / (R1 + R2) ]

Example: Say R1=20k and R2=10k then, R2/ (R1+R2) = 10k / (20k+10k) = 1/3V This will take a Vin= 5 volts and make it 5/3 or about 1.6667 volts. That's the same as you'd need for a 5v sensor going into a resistive channel with no jumper.These values are also great for a 24 Volt System.


Current Measurement

Amperage may be measured using a toroidal (doughnut type) current sensor. BMA has these sensors available. These sensors require 12 volts from the EFIS/One and are connected to any voltage input as the small circuit converts current into a voltage output. The range of the BMA sensors is +/- 100 amps. The sensor is sized for a #2 (or smaller) wire. TIP: If you pass two wires through the sensor, it will measure the sum!

CHT and EGT There are six (6) differential inputs available that are intended for Type K thermocouples. Use ungrounded thermocouples available from us. Most EGT problems are caused by ground loops, in the wiring of an aircraft. BMA also supplies a resistive type CHT sensor that works on our resistive channels. See the recommended sensor list. If you need more than six (6) thermocouples, you can order the optional daughter card to add up to 16 more channels. This card has 8 thermocouple and 8 voltage inputs. Builders with six or more cylinder engines will need this card. TIP: Testing or calibrating thermocouples can sometimes be difficult as they output such low voltages. A useful device called a “Thermocouple-to-Analog Converter” can be purchased. This device allows you to connect to a thermocouple and a standard digital voltmeter and then read the temperature directly on your voltmeter as milliamps. So, a temperature of 905 degrees would show 0.905 volts. These converters can be purchased from Newport, model # TAC80B-K/N. See www.newportus.com for further details.

Fuel, Oil, Coolant and Hydraulic Pressure We now supply an excellent pressure sensor and HIGHLY recommend it’s use. It is an active sensor with a very high quality case. One sensor will work on most applications.

Fuel Flow Measurement & K Factor. Spinning wheel fuel flow sensors have a “K Factor” that determines their calibration. The K factor is simply the number of pulses per gallon (or liter etc.) that is output by the sensor. So, if your engine burns 10 GPH maximum and the fuel flow sensor has a K factor of 28,333 then: Maximum pulses per hour = 10 * 28,333 or 280,330 To get frequency just divide by 3600 (the number of seconds per hour) Frequency = 280330/3600 or = 77 Hz.

77 Hz fits in the range of our low frequency (< 220 Hz) input. The FloScan 264PB-15 fuel flow sensor has a K factor of 47,300. This corresponds to a pulse train of 39Hz at 3 GPH and a pulse train of 131 Hz at 10 GPH and can be used on the low frequency inputs (0-220 Hz) for smaller, carbureted engines like the Rotax. The 201B puts out 28,333 pulses per gallon and is just the thing for engines that use no more than 27 GPH. Use the Floscan 231 for engines up to 40 GPH. The 231 outputs20,000 pulses per gallon (K-Factor).


Flow Sensor K Factor Maximum Readable GPHFlowscan 201B 28,333 28 Flowscan 231 20,000 40 E.I FT 180 22,400 200

See www.floscan.com for details on the Floscan sensors.

NOTE: The maximum EFIS/One readable GPH is for the low frequency inputs, channels 0 and 15. Fuel systems with Facet type diaphragm pumps and carburetors can produce pulsating fuel flows. For accurate results with these systems we recommend the 264-PB-15, which has an integral pulsation dampener. These are specifically designed for carbureted engines with Facet pumps. Install the fuel flow sensor with the wire leads pointed UP to assure that the turbine rotor is totally immersed in fuel. For maximum accuracy at low flow rates the sensor should be mounted on a horizontal surface. See the Floscan Web site for all you ever wanted to know about these types of sensors. Wire the three terminals on the sensor as follows: The Red lead gets its power from the EFIS/One, the Black lead is a ground from the EFIS/One and the White lead is the pulse train output back to the EFIS/One. NOTE: The ability to measure flow rate is a combination of the sensors K factor and the maximum frequency of the EFIS/One input it is connected to. The low frequency inputs will measure from 4 to 220Hz and the high frequency from 220 to 2200Hz.

Fuel Flow for Turbines

If you are flying a turbine, we recommend an Electronics International FT 180. It has a range of 5 – 200 GPH and has a K factor of 22,400. Use it on channel 13 or 14. L39 owners usually fly a Flow Technologies (www.ftimeters.com) FT8-8AEX LEAH4 sensor. This flow transducer has a K factor of 16,000 but should be used on our high frequency input since the fuel flow never drops below 50GPH. An L39 burns about 60GPH at idle and 250GPH during climb, so it also works well on the high frequency inputs on channels 13 or 14.


RPM Sensors for Lycoming and Continental Engines The Westach 303DH2T is an open collector device that expects 5 volt power and a pull-up resistor. It screws on the Lycoming tachometer drive, outputs two pulses per revolution, and can be connected to one of the Low Frequency channels usually used for Fuel Flow sensors. Low Frequency B is assigned to Channel 15 (Analog 2, Pin 21), and is usually unused. Connect the Westach sensor as follows:

Westach Wire Analog 2 Pin # Use White 21 FrequencyRED 1 or 14 5 Volts Black 3,16,17,18 or 20 Ground

Westach also offers a sensor that plugs into the magneto vent plug and outputs a pulse train that can also be read on channel 15. Model 720-14R is for Slick Mags and model 720-14RB is for Bendix mags. IMPORTANT: You must wire a 6.8K Ohm, ¼” watt, resistor from the WHITE to the RED wire as a pull-up. The Low Frequency channels on the EFIS/One measure from 0-220Hz. On average 11.4 AD counts is equal to 1Hz 1 Pulse per Revolution 2 Pulses per Revolution 3 Pulses per Revolution

A/D RPM FREQ A/D RPM FREQ A/D RPM FREQ 95 500 8.3 189 500 16.6 285 500 25

190 1000 16.7 380 1000 33.3 570 1000 50 285 1500 25.0 570 1500 50.0 855 1500 75 380 2000 33.3 759 2000 66.6 1140 2000 100 475 2500 41.7 950 2500 83.3 1425 2500 125 580 3000 50.0 1140 3000 100 1710 3000 150

NOTE: A strobe type propeller tachometer should always be used to verify your calibration array. Make adjustments as necessary. TIP: Cardinal Electronics sell a great propeller tachometer, which can be used to precisely adjust the RPM Calibration in the EFIS/One. See http://www.proptach.com/ for further details.


RPM & Electronic Ignition Systems There are a number of Electronic Ignitions systems available for aircraft engines including those made by: Light Speed Engineering http://www.lsecorp.com/Products/Ignition.htm ElectroAir, Inc. (Jeff Rose) at 423 622-8825 Unison Lasar http://www.unisonindustries.com/products/ignition.html These systems will output 2 or more pulses for each revolution of the engine. The pulse wire can be passed to a low frequency channel, either A or B, on the EFIS/One The Lasar 2+ or higher also outputs an analog 0 – 3vdc signal to represent RPM. This linear voltage output could be measured by the EFIS/One and mapped into an RPM display.

RPM & Proximity Sensors The EFIS/One frequency counters can be driven with a proximity sensor that outputs a pulse train as the engine or propeller rotates. Westach has a sensor for this purpose, model 720-4A. You should mount the sensor to generate two or three pulses per revolution of the propeller.

RPM Sensors for Turbine, Wankel and Auto Engines The high frequency input is normally used for RPM or fuel flow transducers. These inputs look for a TTL level (5 volt) pulse train and can measure from about 100-4.8kHz. Convert the number of pulses per revolution to RPM and use the chart below. On average, use 65 AD counts per 100Hz. This is useful for Tracy Crook’s EC2 Mazda injection system, among others. 4 Pulses per Revolution 5 Pulses per Revolution 6 Pulses per Revolution

A/D RPM FREQ A/D RPM FREQ A/D RPM FREQ 22 500 33.3 27 500 41.7 33 500 50.0 43 1000 66.7 54 1000 83.3 65 1000 100.0 65 1500 100.0 81 1500 125.0 98 1500 150.0 87 2000 133.3 108 2000 166.7 130 2000 200.0

108 2500 166.7 135 2500 208.3 163 2500 250.0 130 3000 200.0 163 3000 250.0 195 3000 300.0 152 3500 233.3 190 3500 291.7 228 3500 350.0 173 4000 266.7 217 4000 333.3 260 4000 400.0 195 4500 300.0 244 4500 375.0 293 4500 450.0 217 5000 333.3 271 5000 416.7 325 5000 500.0

Angle of Attack (AOA) Sensor BMA offers the Proprietary Systems hardware and has licensed the patented AOA technology which is incorporate into the EFIS/One system software. Just connect the upper and lower wing ports to the pneumatic ports provided on the EFIS/One and select the type of AOA in the SETTINGS page. Version 2.15 System software does not include a released version of the AOA system. TIP: Pin 13 of the Encoder port is used for flap position indication or the AOA software.


Pneumatic Sensors Five pneumatic airdata sensors are provided inside the EFIS/One. They should be connected to:

• Pitot • Static • Manifold pressure • Angle of Attack, top and bottom

Make sure you put a drip loop and filter in the lines, and follow standard aircraft practice in plumbing the sensors. If the sensors get flooded with water they will read inaccurately, which can be dangerous. TIP: The pneumatic connectors on the EFIS/One are high quality, oxygen rated connectors. If you need replacement inserts or different sizes call BMA. These connectors are also available from Colder Products at 651-645-0091. The “body” which is mounted in the EFIS/One connector panel is part # PMC1602 and the straight insert is PMC2202. Various size inserts and angles are available. See

http://www.colder.com/asp_productoverviews/pmc_series.asp

Airspeed EFIS/One system must be calibrated every two (2) years for IFR operation just like any other pitot/static aircraft system. When the EFIS/One is shipped the airspeed will be calibrated but should be recalibrated once installed in your aircraft. Please have an avionics shop help with this task. To calibrate the ASI (air speed indicator), have the avionics shop hook up their equipment just as they would for a mechanical ASI. Use the Calibration option on the Command Shell Menu, select sensor 11 which is Airspeed. Have the technician read off airspeeds to you, IN KNOTS. As they give you each airspeed reading in knots, enter the Current Reading for AD in the left column of the Calibration Array and the Airspeed, in knots, in the right column. Make more entries closer to the important speeds, especially around stall speed. There are 15 entries that can be made to the table. You should record the old and new data in the table below.

Shipped A/D Value (knots)

Shipped Airspeed

Your A/D Value

Your Airspeed (knots)


Altimeter EFIS/One system must be calibrated every two (2) years for IFR operation just like any other pitot/static aircraft system. When the EFIS/One is shipped the altimeter will be calibrated but should be recalibrated once installed in your aircraft. Please have an avionics shop help with this task. To calibrate the altimeter, have the avionics shop hook up their equipment just as they would for a regular mechanical altimeter. Use the Calibration option on the Command Shell Menu, select sensor 12 which is Altimeter. Have the technician read off altitudes to you. As they give you each reading, enter the Current Reading for AD in the left column of the Calibration Array and the Altitude in the right column. There are 15 entries that can be made to the table. You should record the old and new data in the table below.

Shipped A/D Value (knots)

Shipped Airspeed

Your A/D Value

Your Airspeed (knots)

NOTE: The altimeter must calibrated at 29.92” TIP: Use the new SETPRINT command in version 2.16 to create a record of all EFIS/One calibration data and settings.

Manifold Pressure Manifold pressure is normally calibrated in Inches of Hg. The Preset curve will work fine for normal MP readings. NOTE: Some earlier EFIS/One’s contained a differential sensor for the manifold pressure sensor. You may need to change the setting of the “Correct MP to Absolute” (on the Setup menu) from No to Yes.


Magneto-resistive Compass The magneto-resistive compass has a serial digital communications link which connects to a DB9 on the EFIS/One. The sensor must be mounted clear of magnetic influences, like wiring, radios, and ferrous materials. You can run the cable up to 150 feet, so out on the wing or in the tail cone is a great place for it. If there’s active wiring within two feet it’ll read wrong, just like any compass, so pick your spot carefully! NOTE: This device needs to be installed level, plumb and along the line of flight like a gyro. You must also use non-ferrous, non-magnetic mounting hardware. Brass or nylon screws or good two-sided tape work well. If the EFIS/One processor box cannot be installed level in the aircraft, the magnetometer should match the processor box in all 3 axes.

BMA recommends the following procedure to mount and check the magnetometer: 1. Connect the magnetometer to the EFIS/One processor with a cable long enough to reach the floor under

your airplane. Make sure it is working and painting numbers when you swing the sensor back and forth. 2. Chock your wheels and make sure the airplane is level fore and aft and left to right. 3. Install the magnetometer level fore and aft, left to right. 4. Verify that all combinations of electrical loads don’t affect the reading – try Nav lights, strobes, fuel

pumps, run the engine. The best place for this device is out in the wing or canard (if so equipped). RV owners may want to mount theirs under the empennage fairing. Remember, it’s sensitive!

TIP: Hangar structure or rebar in a concrete floor will affect the magnetometer. Make certain there is no magnetic interference in the area you intend to use to mount the magnetometer.


Glideslope and Localizer The Garmin/AT SL30 and CNX80 can be connected via Serial interface to provide very complete radio integration with your EFIS that is discussed in this manual in the section on the SL30. Other radios are connected by Analog signals as shown below.

Glideslope The signal from your Glideslope receiver will need to be connected to this high impedance input of the EFIS/One. If you are not sure how to do this, get the help of an avionics shop. The EFIS/One is expecting the standard Up/Down and Left/Right differential signals that are -150mv to +150mv. The EFIS/One will interpret the GS Good flag as good when the voltage goes over 250mV. Like all sensors, Glideslope needs to be calibrated on the Calibration screen sensor 16. There only needs to be two entries in the Calibration Array. One for needle full up and one for needle full down. The display value for full up is 100 and -100 for full down. Use a signal generator and your radio (avionics shops can do this) to generate a full up and full down signal. Use the Calibration Menu option, select sensor 16 and have the avionics technician generate a full up deflection signal. Enter the Current AD value in the calibration array and to its right enter the Display Value of 100. Do the same for full down and enter -100 in the Display Value column. TIP: BMA has available a small external circuit to convert the differential outputs for the Glideslope Good flag into a ground and GS good flag for use with the EFIS/One with airdata boards prior to Rev 11. Some radios require this adapter if the GS/Loc signals are hooked up and the needles will not display, or if the needles are always displayed and don’t disappear when they should. Rev 11 airdata boards or later do not need this adapter.

Localizer The signal from your Localizer receiver will need to be connected to this high impedance input of the EFIS/One. If you are not sure how to do this, get the help of an avionics shop. The EFIS/One is expecting the standard Left/Right signal that is -150mv to +150mv. The EFIS/One will interpret the Localizer flag as good when the voltage goes over 250mV. Like all sensors, Localizer needs to be calibrated on the Calibration screen sensor 17. There only needs to be two entries in the Calibration Array. One entry for full left needle and one for full right needle is required. The display value for full right is 100 and -100 for left. Use a signal generator and your radio (avionics shops can do this) to generate a full left and full right signal. Use the Calibration Menu option, select sensor 17 and have the avionics technician generate a full right deflection signal. Enter the Current AD value in the calibration array and to its right enter the Display Value of 100. Do the same for full left and enter -100 in the Display Value column. TIP: Some older EFIS/One’s (Prior to Rev 11 of the air data board) did not have differential inputs for the flags. This may cause a problem with flag indication with some radios. If this is the case, BMA has available a small external circuit board to convert the differential outputs for the Localizer Good flag into a ground and Localizer Good flag for use with the EFIS/One.


Radio Signal EFIS/One Analog 1 PinGlideslope + 4 Glideslope - 3 Localizer Left 5 Localizer Right 29 GS Flag + 22 GS Flag - 21 Loc Good + 24 Loc Good - 23

If the external adapter is required to recognize the GS/Loc flag use the following wiring information. Do not use this board if your airdata board is Rev 11 or later (it’s the top board inside the EFIS/One).

From Radio TB1 Pin GS Flag + Pin 1 1 GS Flag – Pin 2 2 Loc Flag + Pin 3 3 Loc Flag – Pin 4 4

EFIS/One Analog 1 TB2 PinGS Flag + Pin 22 1 Loc Flag + Pin 23 2 +12V Pin 35 3 Ground Pin 27 4

NOTE: The 4 pin DIN rail on the left is TB1 (from the radio) and the 4 Pin on the right, TB2, goes to the Analog 1 pins on the EFIS/One.

OAT Outside Air Temperature is measured using the supplied sensor. Place this sensor where it will read accurately, and is not in direct sunlight. OAT is used to compute Density Altitude as well as for display. The sensor requires +5 volts and should be wired to one of the supply pins on the Analog 2 connector to supply the +5 and ground. Mount the sensor where it will be in the incoming air stream and won’t be heated by the engine, exhaust, or the sun. Just inside the leading edge of a scoop works well.

Sensor Analog 2, PinYellow – Signal 23 Black – Ground 3 Red - +5V 14

Just select the OAT sensor Preset for the Calibration Array to set channel 6, the OAT Sensor. NOTE: Do not use channel 6 for anything else and always calibrate in centigrade as the EFIS/One uses the OAT to calculate TAS and Density Altitude. The 5 volt positive on A2 pin 14 for the OAT must also not be used for anything else. Anything below –50 degrees C is clearly a dead sensor. It is recommended to set a Deadline at –51 degrees C to indicate that the sensor is open. The above chart will be accurate to +/- 2 degrees C without any further measuring. You can always calibrate the sensor against a known standard if you want but it’s not really necessary.


Preflight System Checkout Once the EFIS/One is configured and wired and before we taxi out and fly, it’s important to check the EFIS/One system out completely just as you would any over system on the aircraft. The difference between an installation that works the first time and one that takes days to debug is right here in this checkout stage. Let’s run through the checkout processes. 1. Verify Heading indicates correctly and that the magnetometer is mounted away from ferrous metals and

is solidly mounted. 2. Rig the airplane level in all axes and let the EFIS/One come up to temperature for 15 minutes, minimum.

Set the AHRS to level by selecting “Set Level” on the settings menu (SET on the bezel). This will correct any small tilt errors in your installation and dial your EFIS/One in to zero/zero level with your airframe.

3. Check your Pitot and Static connections for leaks and verify that they are working to your satisfaction. 4. Run through each engine gauge against a known reference to check the instrument and the EFIS/One

display. 5. Verify that engine gauge redlines appear when you wish them. 6. Verify that fuel flows and fuel levels are accurate. Running out of fuel really ruins your day.

First Flight Checkout

On the first flight of the aircraft, please ignore everything except airspeed and altimeter. Fly the airplane at least five times before being concerned about all the features of the EFIS/One. Once you have established that the machine will fly, that the aircraft is reliable and safe then it is time to “play” with all the things the EFIS/One can do. Some things you might consider verifying early in your test plan might include:

1. Airspeed indicator vs. groundspeed, remember wind and density altitude have to be taken into account. 2. Altimeter vs. known altimeter. Two altimeters will always disagree, but make sure they are close. 3. Fuel levels in-flight vs. on the ground. Get a feeling for how much the sensors are off due to angle of

attack and flight dynamics. 4. Make sure the attitude display agrees with the aircraft’s attitude. 5. If you have backup instruments, which are always recommended, compare the EFIS/One against the

backups. Any major discrepancy should be evaluated and if necessary rectified. TIP: Download the EFIS log file (EFIS.CSV) to get all the data you need to analyze your test flights. It’s really very useful. Instructions are contained with the Pilot’s Guide for 2.15


Updating from DVD/CD/FLASH Every 28 days a new CD is shipped with the latest data terrain, obstructions, radio frequencies and new airport locations. To update the EFIS/One to the newest release NOTE: Make sure your battery is fully charged as you don’t want a power failure during this process. If the power does fail during the update process you may have to return it for service.

• Power up the EFIS/One • Plug in your Programming Keyboard and touch Escape • Insert new DVD, face up. • Select Command Shell from the menu. • When the “C” prompt is displayed, type D:UPDATE and touch Enter key. • Wait for the process to complete. • When you are back at the “C” prompt, remove the EFIS/One System DVD/CD, power down and

restart. If you have a system without the 1GB upgrade (systems delivered after May 2003 all have the upgrade) you should re-insert the terrain disk.

Downloading Data To A Computer The EFIS/One has an Ethernet port labeled “Data”. This Ethernet port can be used to transfer data from the EFIS/One to your computer. Carefully follow the steps below. If you do not have fairly good computer skills, please find a friend that can help you. This will save you a great deal of time and frustration.

• First you will need the correct cable between your laptop/computer and the EFIS/One. Your laptop computer will also need an Ethernet port. A 10baseT “Cross Over” Ethernet cable between your Laptop and the EFIS/One processor is required. If you have a network hub, a standard 10baseT cable should be used to connect the EFIS/One and your laptop to the hub. Both types of cable can be purchased from most computer stores or from Radio Shack.

• On the EFIS/One, plug in the Programming Keyboard and press the Esc to exit the normal flight

screen and get to the EFIS/One Maintenance Menu. Now select Command Shell and type “IFUP” followed by the Enter key.

• A number of messages will be displayed on the EFIS/One screen as the FTP server and

communication software is loaded.

• Now transfer the log files to your laptop. This can be done in several ways but two, the standard windows FTP client and CuteFTP, are outlined here.

Using the FTP Client in Windows Run the standard FTP client on your laptop. This is normally done by running FTP. Use the Windows Run command and type FTP. When the FTP Client is running, connect to the EFIS/One as follows: ftp> OPEN 192.168.0.111 User > root Password > efis ftp>GET EFIS.CSV ftp>CLOSE


ftp>QUIT

Using CuteFTP Interface Free FTP clients can be downloaded from the internet. BMA uses CuteFTP which can be downloaded from http://www.globalscape.com/store/purchase.asp?product=cuteftppro

The following shows how to setup CuteFTP and the data needed to connect to the EFIS/One. Using CuteFTP, set up a new connection (File, New) and enter the data shown to the right. The password, which is shown as **** is efis. Click on the “Type” Tab and set the values as shown. Now Click OK to save the new connection setup.


To connect to your EFIS/One, select EFIS/One Processor from the list of connections. After a successful connection, your screen will look something like this.

To transfer files from the EFIS/One double click on the file name in the right hand list of files. To transfer the flight log, select the EFIS.CSV. The file will transfer to your laptop. Important: When using this type of software, be very careful not to delete or change anything on the EFIS/One. Only transfer files from the EFIS/One to your laptop. Files which end in “.DAT” contain configuration data specific to your EFIS/One and these files must not be lost or altered in any way. If they are lost, the EFIS/One will need to be returned to the factory for recalibration.

• After you have transferred the EFIS.CSV file, the EFIS/One FTP connection should be terminated on the EFIS/One. To do this, type IFDOWN followed by the Enter key on the EFIS/One Programming Keyboard and then turn off the system. Turn on the system after a few seconds and the normal flight screen will be displayed after a few seconds.

Using Other FTP Clients The information needed to connect to the EFIS/One is as follows: • The IP address of the EFIS/One is 192.168.0.111 • The User is “root” • The Password is “efis”

Use passive mode to connect.


Appendix A – Sensor Layout Plan Use the Sensor Map you created to determine which pin on which connector goes to each sensor. Print this sheet out and use it to wire your plane. Add it to your Airframe log – your A&P will thank you. Sensor Name Type

(V/R/T) AD Channel

Connector Signal Power Ground Jumper

OAT Yellow Wire V 6 A2 23 14 3


Appendix B – Example Sensor Maps

Example 4 Cylinder Lycoming Sensor Name Type

(V/R/T) AD Channel

Connector Pin(s) Notes

Volts V 7 A2 11 *May need to use a voltage divider.

OAT V 6 A2 23 Pin 3 is Ground, Pin 14 is +5v MP Internal 9 - - Tube to MP port RPM Frequency 15 A2 14,20,

21 Westach 303D2HT, 6.8K ohm resistor between p.21 & 14

Oil Temp R 18 A1 6 BMA Oil Pressure V** 19 A1 7 BMA Fuel Left** V 4 A2 13 Capacitive fuel probes, 0 – 5vdc

output Fuel Right** V 5 A2 12 Capacitive fuel probes, 0 – 5vdc

output Fuel Pressure V** 20 A1 26 BMA Fuel Flow Frequency 0 A2 6,7,19 FloScan 264PB-15 OR 201B* EGT1 T 26 A1 36+,17- BMA EGT2 T 27 A1 18+,37- Watch polarity EGT3 T 28 A1 15+,33- Watch polarity EGT4 T 29 A1 34+,16- Watch polarity CHT 1 R 21 A1 8+,27- Aerosance CHT Probes CHT 2 R 22 A1 9+,27- Tie all four grounds together CHT 3 R 24 A1 10+,27- “ CHT 4 R 25 A1 11+,27- “ * Carbureted engines use 264PB-15, injected engines use 201B ** Voltage divider required. See below for 0 – 1,67v range on a resistive channel AOA connects to labeled ports on the processor. Pressure is top port, suction is bottom port.

Voltage Divider Connect a pair of 10,000 Ohm resistors in series to cut the buss voltage in half to measure voltage. Connect the top of the divider to your aircraft voltage buss, the center tap to the Voltage channel of your choice (channel 4, 5 or 7) and the bottom to ground. You will then be able to cover the entire range of your electrical system. TIP: Remember Ohm’s Law? Volts = Amps * Ohms or V=IR A divider with a pair of resistors R1 and R2 produce a voltage Vout at the junction given a voltage across them both V1: Vout = V1 * [ R2 / (R1 + R2) ]

Example: Say R1=20k and R2=10k then, R2/ (R1+R2) = 10k / (20k+10k) = 1/3V This will take a Vin= 5 volts and make it 5/3 or about 1.6667 volts. That's the same as you'd need for a 5v sensor going into a resistive channel with no jumper.


Lycoming IO360 B1E with Electroair Ignition Sensor Name Type

(V/R/T) AD Channel

Connector Jumper Pin(s) Notes

OAT V 6 A2 23 See Manual Fuel Left V 4 A2 13 Vision MicroSystem

Probes & Princeton Adapters

Fuel Right V 5 A2 12 Vision MicroSystem Probes & Princeton Adapters

Volts V 7 A2 11 RPM - 15 A2 21 Electroair Output MP 9 Tube to MP Port Oil Pressure V** 19 A1 7 BMA Oil Temp R 18 A1 G1 6 BMA Fuel Flow A V 0 A2 6,7,19 FloScan 201B Fuel Pressure V** 20 A1 26 BMA CHT 1 R 21 A1 G7 8 Aerosance 11395-3 CHT 2 R 22 A1 G9 9 “ CHT 3 R 24 A1 G13 10 “ CHT 4 R 25 A1 G15 11 “ EGT 1 T 26 A1 36+,17- BMA EGT 2 T 27 A1 18+,37- “ EGT 3 T 28 A1 15+,33- “ EGT 4 T 29 A1 34+,16- “

Lycoming IO-360 C1C6 with LSE Electronic Ignition

Sensor Name Type (V/R/T)

AD Channel

Connector Jumper Pin(s) Notes

OAT V 6 A2 23 See Manual Fuel Left V 4 A2 13 Vision MicroSystem

Probes & Princeton Adapters

Fuel Right V 5 A2 12 Vision MicroSystem Probes & Princeton Adapters

Fuel Center V 7 A2 11 Required RPM - 15 A2 21 Lightspeed Output MP 9 Tube to MP Port Oil Pressure V 19 A1 7 BMA Oil Temp R 18 A1 G1 6 BMA Fuel Flow A V 0 A2 6,7,19 FloScan 201B Fuel Pressure V 20 A1 26 BMA Volts* V 23 A1 See note* CHT 1 R 21 A1 G7 8 Aerosance 11395-3 CHT 2 R 22 A1 G9 9 “ CHT 3 R 24 A1 G13 10 “ CHT 4 R 25 A1 G15 11 “ EGT 1 T 26 A1 36+,17- BMA EGT 2 T 27 A1 18+,37- “ EGT 3 T 28 A1 15+,33- “ EGT 4 T 29 A1 34+,16- “


Subaru in Lancair with 2 Voltage Buss Sensor Name Type

(V/R/T) AD Channel

Connector Jumper Signal Notes

Voltage Buss 1* V 24 A1 10 *Use voltage divider Voltage Buss 2* V 25 A1 11 *Use voltage divider OAT V 6 A2 23 See manual RPM - 13 A2 9 Oil Temp R 18 A1 G1 6 BMA Oil Pressure* V 19 A1 7 BMA Fuel Left V 4 A2 13 0-5 volt probes Fuel Center V 7 A2 11 “ Fuel Right V 5 A2 12 “ Fuel Pressure* V 20 A1 BMA Fuel Flow A V 0 A2 6,7,19 FloScan 264PB-15 Fuel Flow B V 15 A2 8,21,20 FloScan 264PB-15 Reduct Box Temp

R 21 A1 G7 8 Check with MFG for temp range

Coolant Pressure*

V 22 A1 9 BMA

Coolant Temp R 23 A1 G11 28 BMA Connect a ground wire from Analog 2 to your Ground Buss.

Voltage Divider Connect a pair of 10,000 Ohm resistors in series to cut the buss voltage in half to measure voltage. Connect the top of the divider to your aircraft voltage buss, the center tap to the Voltage channel of your choice (channel 4, 5 or 7) and the bottom to ground. You will then be able to cover the entire range of your electrical system. TIP: Remember Ohm’s Law? Volts = Amps * Ohms or V=IR A divider with a pair of resistors R1 and R2 produce a voltage Vout at the junction given a voltage across them both V1: Vout = V1 * [ R2 / (R1 + R2) ]

Example: Say R1=20k and R2=10k then, R2/ (R1+R2) = 10k / (20k+10k) = 1/3V This will take a Vin= 5 volts and make it 5/3 or about 1.6667 volts. That's the same as you'd need for a 5v sensor going into a resistive channel with no jumper.


Typical 6 Cylinder Lycoming/Continental Sensor Layout Plan (Analog 3 Card Required) Sensor Name Type

(V/R/T) AD Channel

Connector Pin(s) Notes

Volts V 7 A2 11 **May need voltage divider OAT V 6 A2 23 Pin 3 is Ground, Pin 14 is +5v MP - 9 - - Tube to MP port RPM V 15 A2 14,20,

21 Westach 303D2HT, 6.8K ohm resisitor between p.21 & 14

Oil Temp R 18 A1 6 BMA Oil Pressure V 40 A3 31 BMA Fuel Left V 4 A2 13 Capacitive fuel probes, 0 – 5vdc

output Fuel Right V 5 A2 12 Capacitive fuel probes, 0 – 5vdc

output Fuel Pressure V 41 A3 29 BMA Fuel Flow V 0 A2 6,7,19 FloScan 231 CHT 1 R 19 A1 7 BMA CHT 2 TR 20 A1 26 Tie CHT Grounds tp pin 27 CHT 3 TR 21 A1 8 Tie CHT Grounds tp pin 27 CHT 4 TR 22 A1 9 Tie CHT Grounds tp pin 27 CHT 5 TR 23 A1 28 Tie CHT Grounds tp pin 27 CHT 6 TR 24 A1 10 Tie CHT Grounds tp pin 27 EGT 1 T 32 A3 15+,16- BMA* EGT 2 T 33 A3 13+,14- Watch polarity EGT 3 T 34 A3 11+,12- Watch polarity EGT 4 T 35 A3 9+,10- Watch polarity EGT 5 T 36 A3 7+,8- Watch polarity EGT 6 T 37 A3 5+,6- Watch polarity *Use proper EGT/CHT extension wire. AOA connects to labeled ports on the processor. Pressure is top port, suction is bottom port. **Older units require voltage divider Volts input. Channel runs 0 -10 volts, aircraft power buss is 0-14 volts. Use top resistor 10k to aircraft power buss, center tap to A2 pin 11, bottom resistor 10k to ground to cut apparent voltage in half.


Typical 4 Cylinder Sensor with Resistive Fuel Levels

Sensor Name Type

(V/R/T) AD Channel

Connector

Pin(s) Notes

Volts V 7 A2 11 OAT V 6 A2 23 MP - 9 - - Tube to MP port RPM - 15 A2 14,20,21 Westach 303DH2T, 6.8K ohm

resistor between p.21 & 14*** Oil Temp R 18 A1 6 BMA Oil Pressure V 4 A2 13 BMA Fuel Left R 19 A1 7 Resistive fuel probes Fuel Right R 20 A1 26 Resistive fuel probes Fuel Pressure V 5 A2 12 BMA Fuel Flow V 0 A2 6,7,19 FloScan 201B EGT1 T 26 A1 36+,17- BMA EGT2 T 27 A1 18+,37- **Proper EGT extension wire

required. EGT3 T 28 A1 15+,33- Watch polarity EGT4 T 29 A1 34+,16- Watch polarity CHT 1 R 21 A1 8+,27- Aerosance CHT Probes CHT 2 R 22 A1 9+,27- p/n 11395-3 CHT 3 R 24 A1 10+,27- Tie all four grounds together CHT 4 R 25 A1 11+,27- “

*Voltage divider needed for Volts input on older units. Channel runs 0 -10 volts, aircraft power buss is 0-14 volts. Use top resistor 10k to aircraft power buss, center tap to A2 pin 11, bottom resistor 10k to ground to cut apparent voltage in half. **EGT extension wire available from Alcor Inc. (make sure it’s K Type) ***If you have an electronic ignition, use it’s pulse output on channel 15


Appendix C - EFIS/One Connectors & Pinouts These tables provide the pin out of the EFIS/One processor’s connectors. Check the text for connections to external devices.

External Power – AUX connector Pin numbers, looking at the EFIS/One, the notched corner is pin 3:

6 5 4 3 2 1

1. +10v to +32v DC from aircraft power. 2. Aircraft ground. Wire is black or green. These go from the 6 Pin Molex to the 4 pin Molex on the DVD drive. 3. +5 to external DVD drive. This voltage is generated by the EFIS/One and is an output. 4. +12v to external DVD drive. This voltage is generated by the EFIS/One and is an output. 5. Ground to external DVD drive. 6. Unused.

Magnetometer Cable The magnetometer cable is a serial cable wired straight through and uses only four pins. The cable has female DB9 on both ends.

DE9 Pin Signal 2 CPU RX 3 CPU TX 5 Ground 9 +12 Vdc

This connector is a DB9 Male on EFIS/One


Altitude Encoder, AP Disconnect & AOA Flap Position This connector has the following signals:

DB25 Pin Signal Sensor Notes Input / Output

1 Reserved 2 C2 Altitude Encoder O 3 C1 O 4 B4 O 5 B2 O 6 B1 O 7 A4 O 8 A2 O 9 A1 O

10 Reserved 12 Reserved 13 AOA Flap Position.

Grounded for Flaps Down.

I

15 Autopilot Disconnect SPST momentary switch to ground for AP

disconnect on stick

I

16 C4 Altitude Encoder O 17 Reserved 25 Ground Transponder Ground O

This connector is a DB25 Female on EFIS/One

The Altitude encoder outputs grey code for use with a transponder.


Analog 1

DB37 Pin

Channel Number

Sensor Notes Signal I=Input O=Output

1 Analog Out 2 Autopilot Out LEFT 0-5v O 2 Analog Out 1 Autopilot Out UP 0-5v O 3 16 -Glideslope DOWN I 4 16 +Glideslope UP I 5 17 -Localizer LEFT I 6 18 Resistive input 1 I 7 19 Resistive input 2 I 8 21 Resistive input 4 I 9 22 Resistive input 5 I 10 24 Resistive input 6 I 11 25 Resistive input 7 I 12 30 - T/C input 5 I 13 31 + T/C input 6 I 14 Ground Ground 15 28 + T/C input 3 I 16 29 - T/C input 4 I 17 26 - T/C input 1 I 18 27 + T/C input 2 I 19 +5v For active sensors O 21 -Glideslope GOOD I 22 +Glideslope GOOD I 23 +Localizer GOOD I 24 -Localizer GOOD I 25 +5v For active sensors O 26 20 Resistive input 3 I 27 Ground I 28 23 Resistive input 8 I 29 17 +Localizer RIGHT I 30 Ground I 31 30 + T/C input 5 I 32 31 - T/C input 6 I 33 28 - T/C input 3 I 34 29 + T/C input 4 I 35 +12v For active sensors O 36 26 + T/C input 1 I 37 27 - T/C input 2 I

This connector is a DB37 Female on EFIS/One.

NOTE: Any 5v or 12v signals are outputs. Do not feed power into these pins. Also, the total current draw on these outputs is limited to 250ma. Use only to excite active sensors. If your EFIS/One has rev 10 or earlier of the Airdata board, pins 21 and 24 were previously ground pins. The RED wire on the Type K thermocouple is negative -! The yellow is positive +.


Analog 2

DB25 Pin Channel Number


1 +5v for Sensor O 2 +12v for Sensor O 3 OAT Black Ground O 4 Not Used Not Used 5 Not Used Not Used 6 0 +12v for Sensor Low Freq A – Power O 7 0 Pulse Counter Low Freq A – Signal I 8 15 +12v for Sensor Low Freq B – Power O 9 13 Pulse Counter High Freq A – Signal I 10 14 Pulse Counter High Freq B – Signal I 11 7 Voltage input 0-10V I 12 5 Voltage input 0-10V I 13 4 Voltage input 0-10V I 14 +5v OAT Red Wire OAT Supply Voltage O 15 +12v O 16 Ground I 17 Ground I 18 Ground I 19 0 Ground Low Freq A – Ground O 20 15 Ground Low Freq B – Ground O 21 15 Pulse Counter Low Freq B – Signal I 22 Not Used Not Used 23 6 OAT Yellow Wire OAT sensor – Signal I

This connector is a DB25 Female on EFIS/One

NOTE: Any 5v or 12v signals are outputs. Do not feed power into these pins. Also, the total current draw on these outputs is limited to 250ma. Use only to excite active sensors.

NOTE: The 5 volt output on pin 14 must be used only for the outside air temperature sensor.


Analog 3 (OPTIONAL)

DB44 Pin Channel Number


1 39 + T/C Input 8 I 2 39 - T/C Input 8 I 3 38 + T/C Input 7 I 4 38 - T/C Input 7 I 5 37 + T/C Input 6 I 6 37 - T/C Input 6 I 7 36 + T/C Input 5 I 8 36 - T/C Input 5 I 9 35 + T/C Input 4 I 10 35 - T/C Input 4 I 11 34 + T/C Input 3 I 12 34 - T/C Input 3 I 13 33 + T/C Input 2 I 14 33 - T/C Input 2 I 15 32 + T/C Input 1 I 16 32 - T/C Input 1 I 17 47 + Voltage Input 8, 0-10V I 18 47 Ground Ground I 19 46 + Voltage Input 7, 0-10V I 20 46 Ground Ground I 21 45 + Voltage Input 6, 0-10V I 22 45 Ground Ground I 23 44 + Voltage Input 5, 0-10V I 24 44 Ground Ground I 25 43 + Voltage Input 4, 0-10V I 26 43 Ground Ground I 27 42 + Voltage Input 3, 0-10V I 28 42 Ground Ground I 29 41 + Voltage Input 2, 0-10V I 30 41 Ground Ground I 31 40 + Voltage Input 1, 0-10V I 32 40 Ground Ground I

This is a DB44, high density, Female connector on the EFIS/One

NOTE: The RED wire on the Type K thermocouple is negative -! The yellow is positive +.


Video - VGA A Standard VGA video port if provided so the EFIS/One can be run on the bench without taking the display out of the aircraft. Hook up to just about any PC monitor with a standard VGA cable.

Serial A The Serial A interface can be used for multiple purposes. The Serial ports use is determined in the Setup option on the Command shell menu. The choices are:

• None – Factory Default • Aerosance – FADEC Computer • Powersport – FADEC Computer • Motec M48 – FADEC Computer • GPSS – GPSS Serial output message for third part AP. • NMEA 0183 – GPS Message • UPS SL30 • UPS SL40 • I4 Serial – Custom Interface • Endeavour – Custom Interface

All output is at 9,600 baud, 8 bits, 1 stop and no parity. The serial male DB9 pin out on the EFIS/One is

EFIS/One DE9 Male Signal 1 DCD 2 CPU RX 3 CPU TX 4 DTR 5 Ground 6 DSR 7 RTS 8 CTS 9 RI


GPSS Format

GPSS Format is compatible with the GPSS message output by UPS GPS receivers. The message format is: <STX><id><data><it><id><data><it>…<id><data><it><EXT> where: <STC> is the ASCII start of character (1 byte <0x02>) <id> is the item designator ( 1 byte i.e. “B” ) <data> is the item data (see item format below) <it> is the item terminator ( 1 byte CR <0x0d> ) <EXT> is the ASCII end of character ( 1 byte <0x03> )

ID Item Format Len Item Description C ddd 3 Track: (magnetic); ddd=degrees D ddd 3 Ground Speed: ddd=knots E ddddd 5 Distance to active waypoint; ddddd=nm*10 L dddd 4 Bearing to active waypoint; dddd=degree*10 H sddd 4 Horizontal Command Signal

S=sign, L=left bank, R=right bank. X=invalid data ddd=degrees*100

Aerosance – Available Engine Parameters The following engine parameters can be assigned to EFIS/One gauges when the Aerosance FADEC is connected to the Serial A port.

Aerosance FADEC OutputPower Fuel Flow RPM Manifold Pressure Internal Air Temp CHT 1 CHT 2 CHT 3 CHT 4 CHT 5 CHT 6 CHT 7 CHT 8 EGT 1 EGT 2 EGT 3 EGT 4 EGT 5 EGT 6 EGT 7 EGT 8 Oil Pressure Oil Temperature


TIP: If the FADEC is not connected to a sensor there will not be any data to read on the FADEC interface! The cable between Serial Port A and the Aerosance FADEC is a standard 9 Pin PC serial cable using pins 2,3,5 and 9.

Powersport – Available Engine Parameters The following engine parameters can be assigned to EFIS/One gauges when the Powersport FADEC is connected to the Serial A port.

Powersport FADEC OutputRPM Throttle IAT Barometer Coolant Temp Oil Temp Injection Time Ignition Time Volts

DVD/CD/FLASH Connector The EFIS/One is shipped with either a DVD/CD drive or Flash Card Reader. The drive is connected to the EFIS/One using a 40 Pin IDC header and ribbon cable BMA supplied. The cable should not be more than 36 inches in length. The DVD/CD drive does not have to be permanently installed in the aircraft if your system has the 1GB upgrade.

PFD / MDF The EFIS/One can support two displays. The BMA supplied cable must be used and not altered. If you need longer length, please contact BMA. The shortest cable is 6’. Just coil up the extra if this is too long.

CTRL PFD / MFD The display’s keypad buttons (4) and rotary knobs (2) pass their data along this cable. This port is also used to connect the Programming Keyboard. If you have two displays and also want to be able to plug in a Programming Keyboard, at the same time, or put a connector in the panel, a Y adapter cable can be purchased or made. The cable between these ports and the display is wired as follows:

DB9 Pin Use 1 1 Tx from Keyboard or remote Keypad3 3 Ground 4 4 +5V From EFIS/One 5 5 Clock Signal from EFIS/One 6 Used for Display back light power 7 Used for Display back light power 8 Used for Display back light power 9 Used for Display back light power

The CTRL PFD and CTRL MFD ports on the EFIS/One are both DB9 Female connectors.


BMA also offers a remote keypad that can be mounted anywhere in the aircraft. The keypad can be ordered in a Vertical or Horizontal version. TIP: To disable the bezel controls on a second display, simply pass the TX signal through a switch.

GPS BNC Connector This is a standard BNC connector and should be used with the BMA supplied antenna. The EFIS/One is designed for use with an Active antenna only. Using a passive type antenna will damage the GPS receiver.


Appendix D - UPSAT SL30 Interface

Overview The UPS SL30 Nav/Com radio has proven to be both popular and reliable in light aircraft. This document describes how to connect the SL30 to EFIS/One to provide navigation signals for EFIS/One and optionally frequency and OBS commands to the SL30. Please refer to the Apollo SL30 Installation Manual for detailed wiring information on the SL30, and for the diagrams referenced here. If you are not comfortable installing and connecting delicate electronic equipment, please get a qualified avionics technician to help you. Our recommended interface method, which is also the simplest, is to use the SL30’s digital outputs. If you can’t do this, the analog signals will provide you with ILS/VOR guidance, but OBS control will have to be done manually on the radio since the EFIS/One has no way to command the SL30 without the digital serial interface.

SL-30 Digital Outputs Connecting the SL30 to EFIS/One using a digital link is easy and enables EFIS/One to set the radio’s frequencies and OBS providing a complete, integrated communication system. In addition, the LOC/GS information is also supported through this serial interface. The analog signals do not need to be connected if the serial interface is used. A digital interface is the preferred method as it uses only 3 wires and provides extended functionality. The following pins on the SL30 are used:

Connection SL30 Pin# (37 pin D-sub) Signal ground 3 RX Data 4 TX Data 5

Digital Connection Diagram These three wires connect your SL30 to Serial A on your EFIS/One. Serial A is usually available unless it’s used to interface with a FADEC computer. These signals are very low current and wiring is best done with #22 stranded wires, Teflon insulation preferred.

Function SL30 EFIS/One Serial A

Ground 3 5 RX Data - Commands from EFIS/One 4 3 TX Data - Replies to EFIS/One 5 2


Digital Test Procedure Make sure your SL30 is configured for a Serial Indicator Head as described in the SL30 manual and set the EFIS/One Nav Source to Ext VOR. If you do not have the SL30 manual, turn on the SL30 while holding the double arrow key and the sys key. The display will probably look like this.

Now press the SEL key to change the Indicator Head Type. Turn the knob on the radio to change the type to SERIAL and then press ENT to save the new setting.

In the EFIS/One SETUP screen (press Escape on the EFIS/One and select from the menu), select UPS SL30 from the Serial A choices. Press Esc to exit the Setup screen and select EFIS/One from the menu and allow the system to finish the initialization. If the serial interface is working, you should be able to move the OBS knob on the EFIS/One and set the OBS on the SL30. You can also select a frequency from the FLT page on the EFIS/One and by pushing the inner knob, the EFIS/One will tune the radio the selected VOR or Com frequency.

SL-30 Analog Outputs As an alternative to the digital interface, the SL30 generates the standard Localizer and Glideslope signals and the standard LOC GOOD and GS GOOD flag signals. These signals are:

Connection Function SL30 Pin# (37 pin D-sub)

CDI +Left +/ 150 mV DC, full scale 14 CDI +Right -/+ 150 mV DC, full scale 13 Localizer GOOD 300 mV when Localizer is good 10 Localizer GOOD Ground Ground for Localizer valid flag 29 Glideslope +Up +/- 150 mV DC, full scale 30 Glideslope +Down -/+ 150 mV DC, full scale 31 Glideslope GOOD 300 mV when GS is valid 28 Glideslope GOOD Ground Ground for GS valid flag 32


Analog Connection Diagram EFIS/One will display a valid indication for ILS use, but will not command or receive OBS data from the radio with the above analog connection. The digital interface described above is a more general purpose solution and supports VOR and OBS tuning. To connect the SL30 to the EFIS/One, use the table below to connect each signal to the EFIS/One’s Analog 1 connector (37 pin) on the side panel. These signals are very low current and wiring is best done with #22 stranded wires, Teflon insulation preferred.

Connection Function SL30 EFIS/One Analog 1

CDI +Left +/ 150 mV DC, full scale 14 5 CDI +Right -/+ 150 mV DC, full scale 13 29 Localizer GOOD + 300 mV when Localizer is good 10 23 Localizer GOOD - Localizer Good - valid flag 29 24 Glideslope +Up +/- 150 mV DC, full scale 30 4 Glideslope +Down -/+ 150 mV DC, full scale 31 3 Glideslope GOOD + 300 mV when GS is valid 28 22 Glideslope GOOD - GS Good - valid flag 32 21

Analog Test Procedure Before connecting to EFIS/One, verify that the connections are correct and use a digital voltmeter to verify that both Localizer and Glideslope signals swing through at range of –150 millivolts to +150 millivolts between the LEFT/RIGHT and UP/DOWN. Connect your meter between LEFT and RIGHT and verify with a NavCom test set. Check to see that the Localizer and Glideslope GOOD signals are putting out at least 300 millivolts into at 150 Ohm load when the signals are valid. Once satisfied that the radio is working correctly and that the wiring is correct, connect to EFIS/One and verify signal on the Calibration screen. Follow the standard EFIS/One calibration procedure for these sensors.


Appendix E - Display Installation

Panel Installation First remove the 10, 6-32 by 3/8” long Socket Head Cap Screws in the face of the EFIS/One display bezel. Note, the two screws at each side a tight and hold the bezel clamp. The 3 screws top and bottom are used to retain the bezel to the screen.


Carefully separate the bezel from the display and remove the 3 internal cables. Make a note of the orientation of the ribbon cable connectors so they can be reinstalled correctly later. The display will now separate into three pieces; the display (mount stays attached), clamp and bezel with controls. Do not remove the mount or disassemble the unit any further. Note the orientation of the cable as the must be reinstalled the same way.

Use the dimensions from the display panel cutout to make an opening for your EFIS/One Primary Flight Display (PDF). Or, you can use the clamp as a template but remember the display extends about 1” to the left of the clamp behind the panel! The 3 holes drilled in your panel, top and bottom, should be drilled to ¼” diameter to allow the display standoffs to freely slide back and forth. The four side holes on the template are 0.150” in diameter. Use of the BMA clamp is optional. If you prefer, nut plates can be attached to the rear of the panel to accept the 4 side 6-32 screws. These four screws hold the unit to the panel and the 6 remaining screws hold the bezel to the display. The panel should only be held between the clamp and bezel and not between the bezel and display. Once the panel cut out is complete, place the clamp over the standoffs and position the display into the panel from the rear. The standoffs on the mount will slide through the ¼” holes in the panel. Hold the Bezel up to the screen and reinstall the three electrical connections. Be very careful to install the ribbon cable connectors correctly. Now insert the six 6-32 by 3/8” SHCS (3 top & 3 bottom). For now, do not tighten these screws all the way. Use the four side screws to secure the Bezel to the panel. Tighten the top and bottom screws ensuring the Bezel is parallel and evenly spaced with the screen. You are now ready to make the electrical connections to the Processor.


Electrical Connections Three cables are used to connect and power the EFIS/One 10.4” display. These cables are used for:

• Power from the aircrafts supply (12-32V). This display does not have it’s own on/off switch and draws about 0.8A when on full bright. Black wire is ground.

• Connecting the display keys to the processor using Ctrl MFD on the processor and the DB9 female

to male cable. (wired straight through).

• Connecting the digital video output of the processor to the display.

NOTE: The above picture shows the screen upside down. The power connector will be located at the bottom when it is installed in the panel.


Display Testing. Connect the screen to an EFIS/One processor. Make sure all three cables, power, keyboard and LVDS video are installed before you start to test. Power on the display and EFIS/One processor. Once the EFIS/One display is showing instrumentation, perform the following checks:

Make sure the brightness knob operates. Check full bright and dim settings.

Push the Top (AP) button. Make sure the Auto Pilot menu is displayed.

Push the Second (CKL) button. Make sure the Check List Menu is displayed.

Push the Third (FLT) button. Make sure the Flight Plan menu is displayed.

Push the Forth (SET) button. Make sure the Settings Menu is displayed.

Push the inner knob on the lower right. Make sure the Engine Gauges are displayed. Push a second time to dismiss the engine gauges.

Turn the inner knob clockwise. Make sure the OBS course number increases in value.

Turn the inner knob anti-clockwise. Make sure the OBS course number decreases in value.

Turn the outer knob clockwise. Make sure the heading bug moves clockwise.

Turn the outer knob anti-clockwise. Make sure the heading bug moves counter-clockwise.

NOTE: If the display appears dim or dark either there is no power to the display or a cable is not properly secured. Please check all connections at both ends. All three cables must be properly attached for correct operation.


Display Panel Cutout


Appendix F - Keyboard Modification Some earlier Programming Keyboards can interfere with the buttons on the EFIS/One bezel controls. If your keyboard or bezel buttons operate erratically then perform this modification to the Programming Keyboard.

The cathode end, marked on the diode with a stripe, should be soldered to the wire coming from the keyboard. The anode end (no stripe) should be soldered in to the connector as shown at Pin 1. Almost any diode will work, but a small signal diode like a 1N4148 is preferred. Radio Shack carries them, as do most electronics houses. The photo shows a 1N4002, which is more than sufficient.

Appendix G – Probe Vendor Information BMA stocks some of the more common probes used on aircraft engine. The following vendors/manufacturers carry various probes:

Vendor Phone Number Web Address Aircraft Spruce 877-477-7823 www.aircraftspruce.com Electronics International 541-318-6060 www.buy-ei.com Measurement Specialties 610-650-1500 www.msiusa.com VDO Westach 800-221-9425 www.westach.com Wicks 707-938-2121 http://wicksaircraft.com


Appendix H – Dimensions & Power

EFIS/One

The unit is mounted in the aircraft with the connector panel facing the left wing.


Display

The EFIS/One display, on the front side of the panel, measures is 8” tall by 10.75 wide and needs 2.25” behind the panel. See Appendix E with respect to the actual panel cut out and space need behind the panel. The display electronics protrudes approximately 1” further left than the left side of the bezel.


Magnetometer

Remote Keypad The optional remote keypad can be mounted in any convenient location.


DVD/CD Drive The EFIS/One currently ships with a standard PC DVD/CD drive. The drive is only accessed for update purposes and all data is copied to the internal 1GB memory of the EFIS/One. Some earlier EFIS/One’s did not have the internal 1GB memory. Please call BMA to enquire about a memory upgrade if you system does not have this option. We have shipped two drives are the last two years. The currently shipping drive is shown below with its approximate dimension. The drive is 7.75” deep, by 5.75” wide and 1.625” tall.

Rear of DVD/CD drive. Ribbon cable and power cable come from the EFIS/One.


FLASH Card Reader. Blue Mountain Avionics, Inc. now ships a panel mounted Compact Flash Card reader to replace the CD or DVD ROM drive. The CF reader uses solid-state CF technology and can be used to easily transfer flight log data from your EFIS/One to a home computer or to install new updates from BMA. Flight Performance and Analysis Software is also now available.

Panel Cutout.


EFIS/One Specifications

Dimensions:

Processor 9" x 10" x 4.6"

10.4" AMLCD Display 7.9" x 10.75" (bezel outside dimensions). 2.25" Deep

Magnetometer 5.75" x 1.5" x 0.875" (length allows for connector & mounting)

Weight Processor, Screen, DVD, Magnetometer & Cables 12 Lbs.

Electrical EFIS/One CPU & Display:

Supply Voltage 9-32 Volts DC

Current draw (EFIS/One CPU and Display) 50W or approx. 3.5 Amperes at 13.8 vdc

Recommended circuit breaker size 10 Amperes for 14 volt supply 5 Amperes for 28 volt supply

Circuit protection Crowbar reverse polarity, fold back current limiting

Thermal:

Operating temperature °-20C to 70°C

Storage temperatures -20°C to 80°C

Heat output Approx. 35 watts at full display brightness

Stability:

All analog channels +/- 2% over operating temperature range

Reliability:

DVD drive 5500 operating hours MTBF

Balance of system electronics 20,000 operating hours MTBF


Appendix I – Calibrating the G Meter You’ll need the ability to turn the EFIS/One CPU upside down for this, so you’ll most likely need to remove it from the aircraft. With the EFIS/One powered on for at least 10 minutes, and the programming keyboard plugged in, once the normal screen appears hit the ESC or escape key. This will bring up a menu. Using the up and down arrows on the keypad, select the Sensor Calibration Screen. Now touch the enter key to load the sensor calibration program. When the sensor calibration screen comes up, it will be on channel zero, the Lo Freq A channel. Use the left/right arrows on the keyboard to highlight the sensor channel number. Use the down arrow on the keyboard to scroll through the channels until you get to channel 12, the G-Meter.

NOTE: As in any menu in EFIS/One, the left/right arrows (or the outer knob on the bezel) move the cursor between the fields on the page, and the up/down arrows (or the inner knob) change or scroll through the values for that field.

Using the left/right arrow, move the cursor through the fields on the G-Meter calibration page until it is on the first row in the first column (AD) under the heading “Calibration Array”. With the EFIS/One CPU sitting level and undisturbed on the bench (or wherever you’re working), type the value that you see in the AD column under the “Current Reading” section. The AD value is a digital representation of the current signal coming from the sensor. The Display Value is how EFIS/One is interpreting the AD value, based upon the calibration array. Then touch the right arrow once, to put the cursor in the column under “Display” and adjacent to the AD value you just typed in. Type a “1” for one positive “G”. Now turn the EFIS/One CPU upside down and let it sit undisturbed. (It’s now at minus 1 G’s). Touch the right arrow button to move the cursor into the second field down under the heading AD. Type the value you read in the “current reading” AD value above. Touch the right arrow button once to put the cursor in the value column adjacent to the AD value you just typed in. Type a “-1” for minus one G. You have now defined plus one and minus one G’s for the EFIS/One. NOTE: Please remember to touch the escape (ESC) button to exit the sensor calibration pages before you power your EFIS/One down. This is to ensure that the file your data is being stored in is not corrupted.


Appendix J – Factory Test Harness and ADTEST


This harness can be made separately or combined with the one of the previous page. The test plug/harness with generate a small (34mv) voltage and provide it to each of the 6 thermocouple inputs.


Notes:

EFIS/One Processor Serial # Air Data Board Serial #


efis / one · 2013. 10. 1. · efis/one installation is not considered sufficient backup for imc...

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