TGM ® 1 GAS Monitor

instruction manual

THIS MANUAL MUST BE CAREFULLY READ BY ALL INDIVIDUALS WHO HAVE OR WILL HAVETHE RESPONSIBILITY FOR INSTALLING, USING OR SERVICING THIS PRODUCT. Like any pieceof complex equipment, this product will perform as designed only if installed, used and serviced in accordancewith the manufacturer’s instructions. OTHERWISE, IT COULD FAIL TO PERFORM AS DESIGNEDAND PERSONS WHO RELY ON THIS PRODUCT FOR THEIR SAFETY COULD SUSTAIN SEVEREPERSONAL INJURY OR DEATH.

The warranties made by Mine Safety Appliances Company with respect to these products are voided if theproducts are not installed, used and serviced in accordance with the instructions in this manual. Pleaseprotect yourself and others by following them. We encourage our customers to write or call regarding thisequipment prior to use or for any additional information relative to use or repair.

INSTRUMENT DIVISION 1-800-MSA-INST or FAX (412) 776-9783MSA INTERNATIONAL (412) 967-3228 or FAX (412) 967-3373

© Mine Safety Appliances Company 1996 - All Rights Reserved

Manufactured by

MSA Canada Inc.,TORONTO, ONTARIO M3N 1X8

Distributed by

MINE SAFETY APPLIANCES COMPANYPITTSBURGH, PENNSYLVANIA 15230

REV 3.2 06.30.98 212819

World Wide Product Support Locations

HeadquartersMSA InternationalP.O. Box 426Pittsburgh, PA 15230TEL: (412) 967-3249FAX: (412) 967-3451

AustraliaMSA (Aust.) Pty. Ltd.137 Gilba RoadP.O. Box 43, WentworthvilleSydney. GirraweenNSW 2145, AustraliaTEL: (02) 688-0333FAX: (02) 896-3224

BrazilMSA do Brasil, Ltda.Av. Roberto Gordon. 138Caixa Postal 37609901-970 DiademaSao Paulo, BrazilTEL: (11) 445-1499FAX: (11) 456-6433

CanadaMSA Canada Inc.148 Norfinch DriveNorth York, OntarioM3N 1X8, CanadaTEL: (416) 667-9400FAX: (416) 663-5908

ChileMSA de Chile Ltda.Avda. Salvador 1434Casilla 16647, Correo 9Santiago, ChileTEL: (2) 2255377FAX: (2) 2250799

ChinaWuxi-MSA SafetyEquipment Co. Ltd.305 Xicheng RoadWuxi City. Jiangsu ProvincePeoples Rep. Of ChinaTEL: (510) 2406134FAX: (510) 2402310

FranceMSA de France13 rue de la GuivernoneBP61795004 Cergy Pointoise CedexTEL: (1) 34323432FAX: (1) 30376305

GermanyAuergesellschaft GmbHP.O. Box 620D-12006 BerlinGermanyTEL: (30) 6886-0FAX: (30) 6886-115

Great BritainMSA (Britain) Ltd.East ShawheadCoatbridge, ML5 4TDScotland, Great BritainTEL: (236) 424966FAX: (236) 440881

HungaryMSA Auer HungariaBiztonsagtechikai Kft.Gyomroi ut 140H-1 108 Budapest X.HungaryTEL: (1) 1272-010FAX: (1) 1272-010

IndiaMSA (India) Ltd.P-25 Transport Depot RdCalcutta 700088 IndiaTEL: (33) 49-2206FAX: (33) 4799368

ItalyMSA Italiana S.p.A.P.O. Box 1719-20101Milano, ItaliaTEL: (2) 89-20-19-18FAX: (2) 82-59-228

JapanMSA Japan Ltd.15-21 Roppongi 6-ChomeMinato-KuTokyo 106. JapanTEL: (3) 3403-3918FAX: (3) 3479-0460

MexicoMSA de MexicoS.A. de C.V.Francisco 1. Madero 84Apartado 16853500 Naucalpan de Juarez(Edo de Mexico)TEL: (5) 576-6444FAX: (5) 359-4330

Middle EastMSA Middle EastBin Hamoodah Bldg.Khalifa St.P.O. Box 46338Adu DhabiUnited Arab EmiratesTEL: (2) 325-906FAX: (2) 339-288

NetherlandsMSA Nederland B.V.P.O. Box 391620 AA HoornNetherlandsTEL: (2290) 503-03FAX: (2290) 13340

PeruMSA del Peru S.A.Los Telares 139Urb. Vulcano. Atc. Lima 3Casilla 1933 (Mail)TEL: (14) 35-4065FAX: (14) 36-1491

RussiaSibertechMonocrystal InstituteNovosubirsk, RussiaTEL: (7-3832) 33 12 79FAX: (7-3832) 39 94 03

Southeast AsiaMSA S.E. Asia Pte. Ltd.51 Ayer Rajah Crescent#02-03Singapore 0513TEL: 776-1633FAX: 778-2529

South AfricaBoart MSA (Pty) Ltd.CNR. Kelvin St. &Steel RdSpartan. P.O. Box 1710Kempton Park 1620TEL: (11) 394-5630FAX: (11) 5648

SpainMSA Española S.A.Narciso Monturiol 7Poligono IndustrialApartado de Correos 10408960 Sant Just DesvernBarcelonaTEL: (3) 372-51-62FAX: (3) 372-66-57

SwedenAB TegmaKopparbergsgatan 29S-21444 MalmöTEL: (40) 80200FAX: (40) 968-215

SwitzerlandMSA (Switzerland) Ltd.Grubenstrasse 24-26CH-3072 OstermundingenTEL: (31) 932-1151FAX: (31) 932-113

ZimbabweMSA Zimbabwe (Pvt.) Ltd.P.O. Box AY280, AMBYHarareTel: (4) 486641FAX: (4) 496357

1. The monitor described in this manual should be installed, operated andmaintained in strict accordance with any labels, cautions, warnings, drawings,instructions, and within the limitations stated.

2. The TGM Series Gas Monitor must not be installed in areas or locations whereexplosive concentrations of combustible gases or vapours might occur in theatmosphere: Class I, Groups A, B, C, and D areas, as defined by the NEC.Because these monitors are not explosion-proof, they must be located in anon-hazardous area.

3. Use genuine MSA replacement parts when performing any maintenance onthe TGM Series Gas Monitor. Failure to do so may seriously impair instrumentperformance. Repair or alteration of the TGM Series Gas Monitor beyond thescope of these instructions, or by anyone other than a certified MSA serviceperson, could cause the product to fail to perform as designed and personswho rely on this product for their safety, could sustain severe bodily injury ordeath.

4. For safety reasons, this equipment must be operated and serviced by qualifiedpersonnel only. Read and understand the instruction manual completely beforeoperating or servicing a TGM Series Gas Monitor.

Table of Contents

Section 1General Information ........................................................................................ 1-1Introduction ....................................................................................................... 1-1LED Indicators & Relays & Audible Alarm......................................................... 1-1Warning and Alarm Condition, Sensor Failure Condition .................................. 1-1

Section 2Installation and Specifications....................................................................... 2-1Installation of Monitor ........................................................................................ 2-1Operating Specifications ................................................................................... 2-1External Connection: Remote Sensors ............................................................ 2-2Signal Output, Relays, Power ........................................................................... 2-3Set-Up & Calibration ......................................................................................... 2-4Warning & Alarm Setpoints ............................................................................... 2-4Warning & Alarm Delays ................................................................................... 2-4Alarm Latch, Display Mode, Audible Alarm Device ........................................... 2-5Analog Output Adjustment ................................................................................ 2-6

Section 3General Operation ........................................................................................... 3-1Auto-Ranging .................................................................................................... 3-1Warning & Alarm ............................................................................................... 3-1Sensor Failure ................................................................................................... 3-1

Section 4Start-Up Procedure for TGM1......................................................................... 4-1Calibration Log .................................................................................................. 4-3Calibration Log .................................................................................................. 4-4Parts List ........................................................................................................... 4-5

Section 5Figure 1:TGM1 Enclosure Drawing ................................................................ 5-1Figure 2: TGM1 Wiring Diagram ....................................................................... 5-2Figure 3: TGM1 Panel Layout/Connection ........................................................ 5-3Figure 4: TGM1 Series Freon Gas Monitor Panel Layout Connection .............. 5-4Figure 5: TGM1 Series Gas Monitor RS-485 Serial Communications Type

Sensor ................................................................................................ 5-5Figure 6: TGM1 Field Connection Diagram for 4-20 mA Analog Signal Type

Sensor ................................................................................................ 5-6Figure 7: TGM1 Sensor Wiring Diagram ........................................................... 5-7

Section 6CSA Certification & FCC Compliance............................................................ 6-1

TGM1Gas Monitor Table of Contents

TOC-1

Appendix AFigure 8A: Troubleshooting Guide for TGM1 .............................................. A-1Figure 8B: Troubleshooting Guide for TGM1 ...................................................A-2Figure 8C: Troubleshooting Guide for TGM1 ...................................................A-3Figure 8D: Troubleshooting Guide for TGM1 ...................................................A-4

TGM1Gas Monitor Table of Contents

TOC-2

Section 1General Information

Introduction

This manual contains instructions for the MSA TGM1 Series Gas Monitor.

Description:

The TGM1 Series Gas Monitor is a micropro-cessor-based monitoring system designed tointerface with a wide range of MSA Sensors.One (1) Sensor can be connected to the TGM1.The system comes complete with audible andvisual status indication, relay outputs and ad-justable warning and alarm levels, complete withreset.

LED Indicators &Relays & Audible Alarm

Warning Condition:

When the gas concentration exceeds thewarning setpoint, the AMBER warning LEDturns on and the warning relay is activated.

The warning relay is non-latching. When theWarning conditions disperse below the setpoint,the relay will re-set.

Alarm Condition:

When the gas concentration exceeds the alarmsetpoint, the RED Alarm LED turns on, the alarmrelay is activated and the audible alarm sounds.

The alarm relay is selectable for non-latchingor latching with H1-9. Standard factoryconfiguration is the non-latching mode.

Sensor Failure Condition:

The TGM1 Monitor has Sensor OK LED. If the remote sensor fails, the Sensor OK LED (Green) goes out and the sensor fail relay is activated. The sensor fail relay is non-latching.

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TGM1 Section 1Gas Monitor General Information

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Section 2Installation and Specifications

TGM1 Section 2Gas Monitor Installation and Specifications

Installation of Monitor

Install the TGM1 Gas Monitor on a wall or structurethat is free from shock or vibration. It should beprotected against physical damage, water, heatand direct sunlight. Install the Monitor so that itsdoor can be opened and accessed for service.

Operating Specifications

Power Requirements:

Standard 110 volts AC 50/60 Hz± 10% @ 0.5 Amps or(Optional) 220 volts AC 50/60 Hz± 10% @ 0.25 Amps or(Optional) 24 volts DC± 10% @ 1.5 Amps max.

Signal Input:

• 4 to 20 milliamps, 2 or 3-wire connection,

OR

• RS-485, 4-wire connection.

Temperature:

Operating: 0 ° to 40 ° C (32 ° to 104° F)

Storage: -10 ° to 50 ° C (14 ° to 122 ° F)

Sensor Power:

• 24 Volts DC @ 200 milliamps

Relay Contact Ratings:

• 10 Amps 1/8 H.P., 125 Vac

• 6 Amps 1/8 H.P., 277 Vac

• 5 Amps 30 Vdc

Number of Relays:

• WARNING: 1 Relay SPDT,

• ALARM: 1 Relay SPDT,

• SENSOR FAILURE: 1 Relay SPDT

Digital Readout Scale(optional):

• 4 Digit Display (Point # and Gas Level)

Status Display:

• Discrete LED for WARNING, ALARM, and SENSOR OK

Alarm & Warning Setpoints:

Standard Factory Set @ 35% and 50% of FullScale and Field Adjustable, unless otherwisespecified when ordering.

Sensor Fail Setpoint:

• Non-adjustable

Time Delays:

• Fixed delay of 5 minutes OFF delay for Warning and fixed delay of 5 minutes ON delay for Alarm.

OR

• Field adjustable delays for 0 to 10 minutes.

Audible Alarm:

• Solid ON-Standard Factory Setting (80 - 90 dB @ 1 ft.)

OR

• Variable Sound Pulse

Calibration:

• All units are tested and pre-calibrated at the factory.

Enclosure:

• Standard - Metal NEMA 1• Optional - Fiberglass NEMA 4

Dimensions:

• Height: 11.5” (292 mm)• Width: 10.0” (254 mm)• Depth: 3.75” (95 mm)

External Connections

Perform all wiring and conduit installation inaccordance to the Canadian Electrical Code orthe National Electrical Code or to local electri-cal requirements. Use separate conduits forpower wires, relay wires and signal wires.

Remote Sensors:

One (1) remote sensor can be connected tothe TGM1. The Sensor may be a 4-20 mAanalog signal type or an RS-485 serialcommunications type. The RS-485 typesensor may be any gas type and range. TheTGM1 will automatically interpret the sensoroperating range. Use shielded cable for wiringinstallation. Signal wiring must not be installedin the same conduit with power or relay wiring.Refer to sensor wiring diagram (page 5-5, 5-6or 5-7) and sensor instruction manual for moredetails.

WHEN CONNECTING THE REMOTE SEN-SORS, MAKE SURE THAT ALL WIRING ISCORRECT AND THE FOUR LEADS OF THERS-485 BUS ARE NOT INTERCHANGED,OR PERMANENT DAMAGE TO THE SEN-SOR MAY RESULT.

NOTE

MAKE SURE THAT THE SENSOR IS GIVENADDRESS 1 ON ITS ADDRESS JUMPERS,OR THE TGM1 WILL NOT BE ABLE TOCOMMUNICATE TO IT. (FOR RS-485 ONLY)

TGM1 Section 2Gas Monitor Operating Specifications

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TGM1 Section 2Gas Monitor External Connections

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Signal Output (optional):

The 4-20 mA analog signal represents the gasconcentration level within the designateddynamic range.

Relays:

When jumper H1-3 is OUT, all relays arenormally de-energized when inactive, andenergized when activated. When jumper H1-3is IN, all relays are normally energized wheninactive and de-energized when activated. Thisprovides fail-safe operation of the TGM1. Eachrelay has an LED associated with it that showsif the relay is energized.

NOTE

DO NOT USE MONITOR POWER WHENCONNECTING ANY EXTERNAL DEVICES TOTHE RELAY CONTACTS. USE A SEPARATEPOWER SOURCE.

DO NOT EXCEED THE CONTACT RATINGSMARKED ON THE RELAYS.

Power:

Connect power supply (110 Vac 50/60 Hz) toterminal strip G, N and L. (Refer to page 5-7).Follow the applicable electrical code require-ments when installing and wiring the unit.

The power wiring must be separated from thesignal wiring and relay wiring; use differentconduit run for power, signal and relay wiring.

The fuse at the input is a 150 mA SloBlo typefuse (BUSSMAN MDL 15/100 or equivalent).

REPLACE FUSE ONLY WITH ONEOF SAME RATING AND TYPE

TGM1 Section 2Gas Monitor Setup & Calibration

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Setup & Calibration

Warning & Alarm Setpoints:

There are two methods for setting the warningand alarm setpoints. The first uses pre-pro-grammed, fixed setpoints of 35% for warningand 50% for alarm. The second allows for ad-justing the setpoints anywhere from 0% to 100%Full Scale (FS) via two potentiometers (labelled:WARNING, ALARM). To select the fixedsetpoints, jumpers H1-7 (warning) and/or H1-8(alarm) must be removed. To select theadjustable setpoint, jumpers H1-7 (warning) andH1-8 (alarm) must be inserted. Inserting ajumper activates the associated potentiometerand test point (TP1 for warning and TP2 foralarm). The test points show a voltage of 0- 5 Vdc for a setpoint of 0 - 100% Full Scale.Using a voltmeter from the test points toTPCOM, the setpoint can be adjusted using thefollowing equation.

TP = Setpoint % x 5 Vdc 100%

Example:

To set up a warning setpoint of 40% and analarm setpoint of 60%,

TP1 should read:

40 x 5 = 2.0 Vdc100

and TP2 should read:

60 x 5 = 3.0 Vdc100

Warning & Alarm Delays:

There are two methods for setting the warningand alarm delays. The first uses pre-programmed, fixed delays of 5 minutes OFFdelay for warning and 5 minutes ON delay foralarm. The second allows for adjusting thedelays anywhere from 0 to 10 minutes via twopotentiometers (labelled: WARNING DELAY,ALARM DELAY). To select the fixed delays,jumper H1-5 must be inserted. To select theadjustable delays, jumper H1-5 must beremoved. Removing the jumper activates theassociated potentiometers and test points(TP3 for warning delay and TP4 for alarmdelay). The testpoints show a voltage of 0-5Vdc for a delay of 0 - 10 minutes. Using avoltmeter from the testpoints to TPCOM, thedelay can be adjusted using the followingequation:

TP = Delay (min.) x 5 Vdc 10

Example:

To set up a warning delay of 4 minutes andan alarm delay of 6 minutes,

TP3 should read:

4 x 5 = 2.0 Vdc10

and TP4 should read:

6 x 5 = 3.0 Vdc 10

Alarm Latch:

Normally, all relays return to their inactive stateonce their condition has cleared. The alarmrelay can be made to latch in the activatedposition even after the alarm has cleared. Byinserting jumper H1-9, the alarm relay willremain latched after the alarm clears until thereset button is pressed.

NOTE

Pressing the reset button during the alarmcondition does not affect the latching. The resetbutton must be pressed after the alarm conditionhas cleared in order to deactivate the alarmrelay.

Display Mode:

The display of the TGM1 is auto-ranging for allRS-485 type serial sensors. The display modejumpers have no effect for an RS-485 typesensor. The display mode jumpers take effectonly if a 4-20 mA analog sensor is installed.Then the incoming analog signal is scaled tothe full scale setting of the display modejumpers. There are two sets of display rangesavailable: Range A and Range B. Jumper H1-4 selects which display range is active. If jumperH1-4 is OUT, Range A is selected; if jumperH1-4 is IN, Range B is selected. The followingtable shows the various jumper positions for thedifferent display modes;

Range A:

Full Scale H2-2 H2-1

999 out out250 out in100 in out10.0 in in

Range B:

Full Scale H2-2 H2-1

500 out out200 out in 75 in out50 in in

Audible Alarm Device:

The TGM1 has two audible alarm modes. Thefirst is a solid-ON mode that sounds theaudible alarm continuously while the TGM1is in an alarm state. The second is a variable-ON mode that sounds the audible alarm in aneight second interval pulsed fashion. The timebetween pulses is fixed, but the on-time ofthe audible alarm is determined by the amountthat the alarming sensor is exceeding thealarm setpoint. For example, if the setpointis at 50% and an alarm comes in at 55%, theaudible alarm would give short beeps everyeight seconds. As the alarm level increasesfrom 55% to 100%, the beeps become longerin duration until a solid tone appears at 100%.

To select the solid-ON audible alarm mode,jumper H1-6 must be inserted. To select thevariable-ON audible alarm mode, jumper H1-6 must be removed.

In both modes, pressing the reset button willsilence the audible alarm, but will not haveany effect on the alarm LED on the front panelor the alarm relay.

TGM1 Section 2Gas Monitor Setup & Calibration

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Analog Output Adjustment:(Optional)

The analog output (4-20 mA) is factory cali-brated and should not require adjustment. Itdoes not drift because it is digitally controlledby the micro-processor. If adjustments are re-quired, a ZERO and SPAN potentiometer canbe used to perform these.

To adjust the output to 4-20 mA for 0-100% in-put (factory setting) apply a 0% (4 mA) signal tothe input and adjust the ZERO potentiometeruntil the output reads 4 mA. Then apply a 100%(20 mA) signal to the input and adjust the SPANpotentiometer until the output reads 20 mA. Ifusing RS-485 type sensors, a 0% and 100%input can be obtained by making sure the sen-sor is not exposed to any gas, or ideally by dis-connecting the sensor (the Sensor Fail will thenactivate - ignore it) for a 0% signal and by in-serting the 100% jumper on the back of the sen-sor board for a 100% signal.

TGM1 Section 2Gas Monitor Setup & Calibration

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TGM1 Section 3Gas Monitor General Operation

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Section 3General Operation

Auto-Ranging:

The TGM1 automatically detects the type ofsensor connected on an RS-485 bus and de-termines its full scale value. All setpoints andthe display are adjusted accordingly to matchthe various sensors’ full scale levels. If ananalog sensor is connected, the display mustbe manually adjusted for the appropriate sen-sor scale using the display mode jumpers (seeSetup and Calibration).

Warning and Alarm:

If the level of the sensor exceeds the warningsetpoint, the warning LED will turn on and thewarning relay will activate. No alarm is sounded.If the sensor input drops below the warningsetpoint, the warning LED will turn off and aftera delay defined by jumper H1-5 (and thepotentiometer), the relay will return to its inactivestate.

If the level of the sensor exceeds the alarmsetpoint, the alarm LED will turn on and after adelay defined by jumper H1-5 (and the potenti-ometer), the relay will activate. At the sametime the relay activates, the audible alarm issounded. The audible alarm may be silencedby pressing the reset button. If the sensor dropsbelow the alarm setpoint, the alarm LED will turnoff, the alarm will silence (if not silenced alreadyby reset button) and the alarm relay willdeactivate if jumper H1-9 is not inserted. Ifjumper H1-9 is inserted, then the alarm relaywill not deactivate automatically once the sensordrops below the alarm setpoint. The relay willonly deactivate once the reset button is pressed.

Sensor Failure:

If the TGM1 loses communications with theRS-485 sensor, or if the sensor fails, thesensor OK LED will turn off and the sensorfail relay will activate. If an analog sensor isused and the impulse is less than 3 mA, thesensor OK LED will turn off and the sensorfail relay will activate.

Section 4Start-Up Procedure for TGM1

(A = Remote Sensor B = TGM1 Monitor)

Loosen the locking screws on front cover to open door. Check wiring and locatethe power switch on main circuit board inside enclosure.

Loosen the locking screws on front cover and open the sensor. Check wiring.

Binary Coded Jumper on H1-1 is properly inserted to address the remote sensor.(If RS-485, 4-wire connection to TGM1 Monitor is used).

Turn power ON.

Green LED (POWER) Indicator on front panel should be ON.

Green LED (Sensor OK) Indicator on front panel should be ON.

Red LED (SENSOR FAIL) Indicator on front panel should be OFF.

Amber LED (WARNING) Indicator on front panel should be OFF.

Red LED (ALARM) Indicator on front panel should be OFF.

Note: Warning LED and Alarm LED may come on during initial power up. If audiblealarm sounds, press RESET button to silence.

IMPORTANT:

Allow the gas monitor and sensor** to stabilize.

* Applicable only to MSA UNTGS Sensor/Transmitter.

** Refer to Sensor/Transmitter manual for stabilization time.

A B

*

*

*

*

*

TGM1 Section 4Gas Monitor Start-Up Procedure

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TGM1 Section 4Gas Monitor Start-Up Procedure

4 - 2

A

*

The MSA TGM1 Monitor allows for field adjustment from factory settings. Please refer toSection 2 of this manual to change settings in order to meet the required sequence ofoperation.

*

B (A = Remote Sensor B = TGM1 Monitor)

Ensure that delay function selection jumper on main circuit board is NOT inserted.

Insert Test Jumper to 100% test position. Red LED (SENSOR FAIL), Amber LED(WARNING), Red LED (ALARM) on the Remote Sensor shall come on. (See Note 1).

The audible horn sounds, Amber LED (WARNING) and Red LED (ALARM) on TGM1Monitor shall also come on. (Press the RESET BUTTON to silence horn).

Note: Warning and Alarm Relays are now energized. Any remote equipment whichmay be connected to the associated relay contacts should now be activated.

Note: TGM1 Monitor is factory preset as follows:

WARNING Level:35% of Full ScaleALARM Level:50% of Full ScaleAudible Signal:Comes on at ALARM levelDelay Function:No Delay (jumper not inserted)

Remove Test Jumper from 100% test position.

The initial function test and start-up is now completed.Close front door and sensor cover and secure locking screws.

Note: Remote Sensor, other than MSA UNTGS Series Sensor, must usecalibration check gas to simulate alarm condition.

Applicable only to MSA UNTGS Sensor/Transmitter.

Calibration Log

TGM1 Section 4Gas Monitor Calibration Log

4 - 3

DATE READING RESET DATE READING RESET

Calibration Log

TGM1 Section 4Gas Monitor Calibration Log

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DATE READING RESET DATE READING RESET

Parts ListMSA TGM1 Monitor

Use only genuine MSA replacement parts when performing any maintenance onthe TGM1 Monitor. Failure to do so may seriously impair instrument performance.Repair or alteration of the TGM1 Series Monitor beyond the scope of the instructionmanual could cause the product to fail to perform as designed.

Disconnect all power source(s) to the TGM1 before removing or changing anycomponents.

TGM1 Section 4Gas Monitor Parts List

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Item

TGM1 Mother Board (110 Vac Version)TGM1 Display Board (w/o Display)TGM1 Display Board (w/ Display)Ribbon Cable Assembly

MSA Part No.

213110 213111 213112 213113

* When ordering replacement parts, Please state MSA’s P/N and S/N of unit.

5 - 1

TGM1 Section 5Gas Monitor Figure 1

Section 5Figure 1: TGM1 Enclosure Drawing

5 - 2

TGM1 Section 5Gas Monitor Figure 2

Section 5Figure 2: TGM1 Wiring Drawing

TGM1 Section 5Gas Monitor Figure 3

5 - 3

Section 5Figure 3: TGM1 Panel/Layout Connection

TGM1 Section 5Gas Monitor Figure 4

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Section 5Figure 4: TGM1 Series Freon Gas Monitor Panel Layout/Connection

TGM1 Section 5Gas Monitor Figure 5

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Section 5Figure 5: TGM1 Series Gas Monitor RS-485 Serial Communication Type Sensor

TGM1 Section 5Gas Monitor Figure 6

5 - 6

Section 5Figure 6: TGM1 Field Connection Diagram of 4-20 mA Analog Signal Type Sensor

TGM1 Section 5Gas Monitor Figure 7

5 - 7

Section 5Figure 7: TGM1 Sensor Wiring Diagram

Section 6

CSA Certification

Certificate of Compliance No. LR 51078-5

FCC Compliance

This device complies with Part 15 of the FCCRules. Operation is subject to the following twoconditions:

1. Device may not cause harmfulinterference.

2. Device must accept any interferencereceived, including interference thatmay cause undesired operation.

NOTE

This equipment has been tested and found tocomply with the limits for a Class A digitaldevice, pursuant to Part 15 of the FCC Rules.These limits are designed to provide reasonableprotection against harmful interference when theequipment is operated in a commercialenvironment. This equipment generates, usesand can radiate radio frequency energy and, ifnot installed and used in accordance with theinstruction manual, may cause harmfulinterference to radio communications.Operation of this equipment in a residential areais likely to cause harmful interference, in whichcase the user will be required to correct theinterference at his or her own expense.

Changes or modifications not expresslyapproved by the party responsible forcompliance could void the user’s authority tooperate this equipment.

TGM1 Section 6Gas Monitor CSA Certification & FCC Compliance

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TGM1 Appendix AGas Monitor Figure 8A

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Appendix AFigure 8A: Troubleshooting Guide for TGM1

TGM1 Appendix AGas Monitor Figure 8B

A - 2

Appendix AFigure 8B: Troubleshooting Guide for TGM1

TGM1 Appendix AGas Monitor Figure 8C

A - 3

Appendix AFigure 8C: Troubleshooting Guide for TGM1

TGM1 Appendix AGas Monitor Figure 8D

A - 4

Appendix AFigure 8D: Troubleshooting Guide for TGM1

Manufactured by

Call Toll Free @ 1 (800) 267 0672

MSA Canada Inc.TORONTO, ONTARIO, CANADA M3N 1X8