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INSTRUCTIONS

MODEL AVR-5B-B

500 VOLT, 10 kHz PULSE GENERATOR

WITH IEEE 488.2 AND RS-232 CONTROL

SERIAL NUMBER: 13962

A V T E C H E L E C T R O S Y S T E M S L T D .N A N O S E C O N D W A V E F O R M E L E C T R O N I C S

S I N C E 1 9 7 5

[email protected]://www.avtechpulse.com/

Tel: 888-670-8729 (USA & Canada) or +1-613-686-6675 (Intl)Fax: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl)

BOX 5120, LCD MERIVALEOTTAWA, CANADA K2C3H5

WARRANTY

Avtech Electrosystems Ltd. warrants products of its manufacture to be freefrom defects in material and workmanship under conditions of normal use. If,within one year after delivery to the original owner, and after prepaid return bythe original owner, this Avtech product is found to be defective, Avtech shall atits option repair or replace said defective item. This warranty does not apply tounits which have been dissembled, modified or subjected to conditionsexceeding the applicable specifications or ratings. This warranty is the extent ofthe obligation assumed by Avtech with respect to this product and no otherwarranty or guarantee is either expressed or implied.

TECHNICAL SUPPORT

Phone: 888-670-8729 (USA & Canada) or +1-613-686-6675 (International)Fax: 800-561-1970 (USA & Canada) or +1-613-686-6679 (International)

E-mail: [email protected] Wide Web: http://www.avtechpulse.com

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http://www.avtechpulse.com/

TABLE OF CONTENTS

WARRANTY......................................................................................................................2

TECHNICAL SUPPORT...................................................................................................2

TABLE OF CONTENTS....................................................................................................3

INTRODUCTION...............................................................................................................5

AVAILABLE OPTIONS.....................................................................................................6

HIGH-VOLTAGE PRECAUTIONS....................................................................................7

SPECIFICATIONS............................................................................................................8

REGULATORY NOTES..................................................................................................10

FCC PART 18........................................................................................................................10

EC DECLARATION OF CONFORMITY................................................................................10

DIRECTIVE 2011/65/EU (RoHS)...........................................................................................11

DIRECTIVE 2002/96/EC (WEEE)..........................................................................................11

FIRMWARE LICENSING.......................................................................................................12

INSTALLATION..............................................................................................................13

VISUAL CHECK....................................................................................................................13

POWER RATINGS................................................................................................................13

CONNECTION TO THE POWER SUPPLY...........................................................................13

PROTECTION FROM ELECTRIC SHOCK...........................................................................14

ENVIRONMENTAL CONDITIONS........................................................................................15

LABVIEW DRIVERS..............................................................................................................15

FUSES.............................................................................................................................16

AC FUSE REPLACEMENT...................................................................................................16

DC FUSE REPLACEMENT...................................................................................................17

FUSE RATINGS....................................................................................................................17

FRONT PANEL CONTROLS..........................................................................................18

REAR PANEL CONTROLS............................................................................................20

GENERAL INFORMATION............................................................................................22

BASIC PULSE CONTROL....................................................................................................22

TRIGGER MODES................................................................................................................24

PULSE WIDTH MODES........................................................................................................24

GATING MODES...................................................................................................................24

ELECTRONIC AMPLITUDE CONTROL, "-EA" OPTION.....................................................25

BURST GENERATION (-BR OPTION).................................................................................25

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PREVENTING OUTPUT STAGE FAILURE..........................................................................27

OUTPUT AND LOAD IMPEDANCE (STANDARD UNITS)...........................................28

OUTPUT IMPEDANCE..........................................................................................................28

LOAD IMPEDANCE..............................................................................................................28

OUTPUT AND LOAD IMPEDANCE (-R50 UNITS)........................................................29

-R50 OPTION........................................................................................................................29

SAMPLE WAVEFORMS FOR VARIOUS ROUT / RLOAD VALUES....................................29

DRIVING A DIODE LOAD DIRECTLY..................................................................................30

OPERATIONAL CHECK.................................................................................................32

PROGRAMMING YOUR PULSE GENERATOR...........................................................35

KEY PROGRAMMING COMMANDS....................................................................................35

ALL PROGRAMMING COMMANDS.....................................................................................36

MECHANICAL INFORMATION......................................................................................38

TOP COVER REMOVAL.......................................................................................................38

RACK MOUNTING................................................................................................................38

ELECTROMAGNETIC INTERFERENCE..............................................................................38

MAINTENANCE..............................................................................................................39

REGULAR MAINTENANCE..................................................................................................39

CLEANING............................................................................................................................39

WIRING DIAGRAMS.......................................................................................................40

WIRING OF AC POWER (STANDARD UNITS)....................................................................40

WIRING OF DC POWER.......................................................................................................41

PCB 158R4 - LOW VOLTAGE POWER SUPPLY................................................................42

PCB 156D - POLARITY CONTROL PCB (-PN UNITS)........................................................43

PCB 197H - HIGH VOLTAGE DISCHARGE CIRCUIT..........................................................44

PCB 183A-S AND 183A-P CAPACITOR BANKS.................................................................45

PCB 104F - KEYPAD / DISPLAY BOARD, 1/3.....................................................................46



MAIN WIRING - POSITIVE (-P) UNITS.................................................................................49

MAIN WIRING - DUAL-POLARITY (-PN) UNITS..................................................................50

PERFORMANCE CHECK SHEET.................................................................................51 Manual Reference: /fileserver2/officefiles/instructword/avr-5/AVR-5B-B,ed24.odt.Last modified February 26, 2020.Copyright © 2020 Avtech Electrosystems Ltd, All Rights Reserved.

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INTRODUCTION

The AVR-5B-B is a high performance, GPIB and RS232-equipped instrument capable of generating up to 500V at repetition rates up to 10 kHz. The pulse width is variable from 100 ns up to 100 us, and the duty cycle may be as high as 1% (or up to 2% with the -XP1 option, or 4% with the -XP2 option). Rise and fall times are fixed at less than 20 ns (or 30 ns for units with the -R50 option). The AVR-5B-B includes an internal trigger source, but it can also be triggered or gated by an external source. A front-panel pushbutton can also be used to trigger the instrument. The output pulse width can be set to follow an input trigger pulse width.

The output voltage polarity depends on the model number:

"-P" units: up to +500 Volts"-N" units: up to -500 Volts

"-PN" units: up to ±500 Volts

The AVR-5B-B features front panel keyboard and adjust knob control of the output pulse parameters along with a four line by 40-character backlit LCD display of the output amplitude, pulse width, pulse repetition frequency, and delay. The instrument includes memory to store up to four complete instrument setups. The operator may use the front panel or the computer interface to store a complete “snapshot” of all key instrument settings, and recall this setup at a later time.

The instrument is protected against overload conditions (such as short circuits) by an automatic control circuit. An internal power supply monitor removes the power to the output stage for five seconds if an average power overload exists. After that time, the unit operates normally for one second, and if the overload condition persists, the power is cut again. This cycle repeats until the overload is removed.

This instrument is intended for use in research, development, test and calibration laboratories by qualified personnel.

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AVAILABLE OPTIONS

-BR Option: This optional feature allows a burst of 1-500 pulses to be generated in response to each trigger event.

-EA Option: The amplitude can be controlled by an externally generated 0 to +10V analog control voltage.

-HN Option: The standard N-type output connector is replaced with an HN-type connector.

-MHV Option: The standard N-type output connector is replaced with an MHV-type connector.

-SHV Option: The standard N-type output connector is replaced with an SHV-type connector.

-R5 Option: Rack-mount kit.

-R50 Option: Switchable output impedance. This allows the output impedance to be switched between the standard value of 0Ω (nominally) or 50Ω (for back-matching purposes).

-XP1 Option: Boosts the maximum duty cycle to 2%.

-XP2 Option: Boosts the maximum duty cycle to 4%.

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HIGH-VOLTAGE PRECAUTIONS

CAUTION: This instrument provides output voltages as high as 500 Volts under normal operating conditions, and generates up to 550V internally, so extreme caution must be employed when using this instrument. The instrument should only be used by individuals who are thoroughly skilled in high voltage laboratory techniques. The following precautions should always be observed:

1. Keep exposed high-voltage wiring to an absolute minimum.

2. Wherever possible, use shielded connectors and cabling.

3. Connect and disconnect loads and cables only when the instrument is turned off.

4. Keep in mind that all cables, connectors, oscilloscope probes, and loads must have an appropriate voltage rating.

Do not attempt any repairs on the instrument, beyond the fuse replacement procedures described in this manual. Contact Avtech technical support (see page 2 for contact information) if the instrument requires servicing.

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SPECIFICATIONS

Model1: AVR-5B-B

Amplitude (VOUT)2,3,15: < 20 to 500 Volts

Maximum output current: 10 Amps

Output resistance (in series with output):

Standard: Nominally zero (< 2Ω)

Optional16: Nominally zero (< 2Ω), or 50Ω, switchable

Rise & fall times (20%-80%)into RLOAD = 50Ω: ≤ 20 ns16

Pulse width (FWHM)4: 100 ns to 100 us

PRF: external trigger mode:internal trigger:

0 to 10 kHz

1 Hz to 10 kHz

Maximum duty cycle (DCMAX), and maximum average output power (PMAX)18:

DCMAX, PMAX

Standard: 1%, 50W

-XP1 opt: 2%, 100W

-XP2 opt: 4%, 200W

Maximum droop at maximum pulse width: 4% (into 50Ω14)

Amplitude discharge time constant,τDIS (typical)11: 2 seconds

Minimum time between full dischargesof the HV PS12: 10 seconds

Amplitude charge-up time13: < 8 seconds

Polarity5: Positive or negative or both (specify -P, -N, or -PN).

Dual polarity not available with -XP2 option.

GPIB and RS-232 control: Standard on -B units. See http://www.avtechpulse.com/gpib for more information.

LabView Drivers: Available at http://www.avtechpulse.com/labview.Ethernet port, for remote control using VXI-11.3, ssh, telnet, web:

Included. Recommended as a modern alternative to GPIB / RS-232.

See http://www.avtechpulse.com/options/vxi for details.Settings resolution: The resolution of the timing parameters (pulse width, delay, period) varies, but is always better than

0.15% of (|set value| + 20 ns). The amplitude resolution is < 0.1% of the maximum amplitude.Settings accuracy (into 50Ω): Typically ± 3% (plus ±1V or ± 2 ns) after 10 minute warmup. For high-accuracy applications

requiring traceable calibration, verify the output parameters with a calibrated oscilloscope17.

Burst mode: Optional10. Generates 1-500 pulses per trigger event. See http://www.avtechpulse.com/options/br.

Propagation delay: ≤ 200 ns (Ext trig in to pulse out)

Jitter (Ext trig in to pulse out): ± 100 ps ± 0.03% of sync delay

Trigger modes: Internal trigger, external trigger (TTL level pulse, > 10 ns, 1 kΩ input impedance), front-panel “Single Pulse”pushbutton, or single pulse trigger via computer command. In the external trigger mode, the pulse width may

be set by the instrument, or it may be set to track the input pulse width.

Variable delay: Sync to main out: 0 to 1.0 seconds, for all trigger modes (including external trigger).

Sync output: > +3 Volts, > 50 ns, will drive 50 Ohm loads

Gated operation: Synchronous or asynchronous, active high or low, switchable. Suppresses triggering when active.

Connectors: OUT: N6,7. Trig, Sync, Gate: BNC

Power requirements: 100 - 240 Volts, 50 - 60 Hz

Dimensions (H x W x D): 100 mm x 430 mm x 375 mm (3.9” x 17” x 14.8”)

Chassis material: cast aluminum frame and handles, blue vinyl on aluminum cover plates

Temperature range: +5°C to +40°C

1) -B suffix indicates GPIB-equipped model.2) For analog electronic control (0 to +10V) of amplitude, add the “-EA” suffix to the model number. Electronic control units also include the standard

front panel controls.3) For operation at amplitudes of less than 10% of full-scale, best results will be obtained by setting the amplitude near full-scale and using external

attenuators on the output.4) The output pulse width may also be controlled externally by applying a TTL-level trigger of the desired width to a rear-panel BNC connector (PWIN =

PWOUT mode).5) Indicate desired polarity by suffixing the model number with -P or -N (i.e. positive or negative) or -PN for dual polarity option.6) SHV, MHV or HN output connectors can also be provided. To specify, suffix the model number with -SHV, -MHV or -HN as required.7) An N-male to BNC-female adapter (Amphenol P/N 31-216) is available. Add the suffix -ADPT2 to the model number to order this adapter.8) An adapter kit, consisting of an SHV PLUG to MHV FEMALE adapter and an MHV MALE to BNC FEMALE adapter, is available. Add the suffix -

ADPT1 to the model number to order this kit.9) MHV, N or HN output connectors can also be provided. To specify, suffix the model number with -MHV, -NC or -HN as required.10)Add the suffix -BR to the model number to specify the burst mode option. See http://www.avtechpulse.com/options/br for details about this option.11)The output amplitude is controlled by internal high-voltage DC power supplies. When the amplitude setting is reduced, the high voltage decays in an

exponential fashion, with the typical time constant noted in this specification. The -QD option provides a fast active-discharge circuit.12)More frequent discharges will cause the instrument to overheat, and may cause damage.13)The output amplitude is controlled by internal high-voltage DC power supplies. This is the time required for the power supplies to rise from 5% to

95% of their full value in response to a change in settings from zero to the maximum setting.

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http://www.avtechpulse.com/options/br

http://www.avtechpulse.com/options/vxi

http://www.avtechpulse.com/labview

http://www.avtechpulse.com/gpib

14)Valid for 50 Ohm loads. The droop will be proportionally higher into lower resistance loads.15)The instrument may be used to drive resistive loads of less than 50 Ohms, as long as the maximum output current specification is not exceeded. The

rise and fall times may increase.16)Add the suffix -R50 to specify the switchable 0/50Ω output resistance feature. The -R50 option will increase the specified rise and fall times by 10 ns.

Not available with the -XP1 or -XP2 options. This option is useful for applications where a proper 50Ω termination at the load is impossible (forexample, testing semiconductors in cryostats), because it provides 50Ω “back-matching” at the pulser end of the transmission line (absorbingreflections from the mismatched load).

17)These instruments are provided with a basic calibration checksheet, showing a selection of measured output parameters. These measurements areperformed with equipment that is calibrated on a regular basis by a third-party ISO/IEC 17025:2005 accredited calibration laboratory. However,Avtech itself does not claim any accreditation. For applications requiring traceable performance, use a calibrated measurement system rather thanrelying on the accuracy of the pulse generator settings.

18)The maximum average output power is only obtainable at maximum amplitude.

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REGULATORY NOTES

FCC PART 18

This device complies with part 18 of the FCC rules for non-consumer industrial, scientific and medical (ISM) equipment.

This instrument is enclosed in a rugged metal chassis and uses a filtered power entry module (where applicable). The main output signal is provided on a shielded connector that is intended to be used with shielded coaxial cabling and a shielded load. Under these conditions, the interference potential of this instrument is low.

If interference is observed, check that appropriate well-shielded cabling is used on the output connectors. Contact Avtech ([email protected]) for advice if you are unsureof the most appropriate cabling. Also, check that your load is adequately shielded. It may be necessary to enclose the load in a metal enclosure.

If any of the connectors on the instrument are unused, they should be covered with shielded metal “dust caps” to reduce the interference potential.

This instrument does not normally require regular maintenance to minimize interferencepotential. However, if loose hardware or connectors are noted, they should be tightened. Contact Avtech ([email protected]) if you require assistance.

EC DECLARATION OF CONFORMITY

We Avtech Electrosystems Ltd.P.O. Box 5120, LCD MerivaleOttawa, OntarioCanada K2C 3H5

declare that this pulse generator meets the intent of Directive 2004/108/EG for Electromagnetic Compatibility. Compliance pertains to the following specifications as listed in the official Journal of the European Communities:

EN 50081-1 Emission

EN 50082-1 Immunity

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and that this pulse generator meets the intent of the Low Voltage Directive 2006/95/EC.Compliance pertains to the following specifications as listed in the official Journal of the European Communities:

EN 61010-1:2001 Safety requirements for electrical equipment for measurement, control, and laboratory use

DIRECTIVE 2011/65/EU (RoHS)

We Avtech Electrosystems Ltd.P.O. Box 5120, LCD MerivaleOttawa, OntarioCanada K2C 3H5

declare that, to the best of our knowledge, all electrical and electronic equipment (EEE) sold by the company are in compliance with Directive 2011/65/EU of the European Parliament and of the Council of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (also known as “RoHS Recast”). In addition, this declaration of conformity is issued under the sole responsibility of Avtech Electrosystems Ltd. Specifically, products manufactured do not contain the substances listed in the table below in concentrations greater than the listedmaximum value.

Material/Substance Threshold level

Lead (Pb) < 1000 ppm (0.1% by mass)

Mercury (Hg) < 1000 ppm (0.1% by mass)

Hexavalent Chromium (Cr6+) < 1000 ppm (0.1% by mass)

Polybrominated Biphenyls (PBB) < 1000 ppm (0.1% by mass)

Polybrominated Diphenyl ethers (PBDE) < 1000 ppm (0.1% by mass)

Cadmium (Cd) < 100 ppm (0.01% by mass)

Bis(2-ethylhexyl) phthalate (DEHP) < 1000 ppm (0.1% by mass)

Butyl benzyl phthalate (BBP) < 1000 ppm (0.1% by mass)

Dibutyl phthalate (DBP) < 1000 ppm (0.1% by mass)

Diisobutyl phthalate (DIBP) < 1000 ppm (0.1% by mass)

DIRECTIVE 2002/96/EC (WEEE)

European customers who have purchased this equipment directly from Avtech will havecompleted a “WEEE Responsibility Agreement” form, accepting responsibility for WEEEcompliance (as mandated in Directive 2002/96/EC of the European Union and local

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laws) on behalf of the customer, as provided for under Article 9 of Directive 2002/96/EC.

Customers who have purchased Avtech equipment through local representatives should consult with the representative to determine who has responsibility for WEEE compliance. Normally, such responsibilities with lie with the representative, unless otherarrangements (under Article 9) have been made.

Requirements for WEEE compliance may include registration of products with local governments, reporting of recycling activities to local governments, and financing of recycling activities.

FIRMWARE LICENSING

Instruments with firmware versions 5.00 or higher use open-source software internally. Some of this software requires that the source code be made available to the user as a condition of its licensing. This source code is available upon request (contact [email protected]).

Earlier firmware versions do not contain any open source software.

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INSTALLATION

VISUAL CHECK

After unpacking the instrument, examine to ensure that it has not been damaged inshipment. Visually inspect all connectors, knobs, liquid crystal displays (LCDs), and thehandles. Confirm that a power cord, a GPIB cable, and two instrumentation manuals(this manual and the “Programming Manual for -B Instruments”) are with the instrument.If the instrument has been damaged, file a claim immediately with the company thattransported the instrument.

POWER RATINGS

This instrument is intended to operate from 100 - 240 V, 50 - 60 Hz.

The maximum power consumption is 150 Watts. Please see the “FUSES” section forinformation about the appropriate AC and DC fuses.

This instrument is an “Installation Category II” instrument, intended for operation from anormal single-phase supply.

CONNECTION TO THE POWER SUPPLY

An IEC-320 three-pronged recessed male socket is provided on the back panel for ACpower connection to the instrument. One end of the detachable power cord that issupplied with the instrument plugs into this socket. The other end of the detachablepower cord plugs into the local mains supply. Use only the cable supplied with theinstrument. The mains supply must be earthed, and the cord used to connect theinstrument to the mains supply must provide an earth connection. (The supplied corddoes this.)

Warning: Failure to use a grounded outlet may result in injury or death due to electric shock. This product uses a power cord with a ground connection. It must be connected to a properly grounded outlet. The instrument chassis is connected to the ground wire in the power cord.

The table below describes the power cord that is normally supplied with this instrument,depending on the destination region:

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Destination Region Description Option Manufacturer Part Number

United Kingdom, Hong Kong,Singapore, Malaysia

BS 1363, 230V, 50 Hz

-AC00 Qualtek 370001-E01

Australia, New ZealandAS 3112:2000,

230-240V, 50 Hz-AC01 Qualtek 374003-A01

Continental Europe, Korea,Indonesia, Russia

European CEE 7/7 “Schuko” 230V, 50 Hz

-AC02 Qualtek 364002-D01

North America, TaiwanNEMA 5-15, 120V, 60 Hz

-AC03 Qualtek 312007-01

SwitzerlandSEV 1011,

230V, 50 Hz-AC06 Qualtek 378001-E01

South Africa, IndiaSABS 164-1,

220-250V, 50 Hz-AC17 Volex 2131H 10 C3

JapanJIS 8303,

100V, 50-60 Hz-AC18 Qualtek 397002-01

IsraelSI 32,

220V, 50 Hz-AC19 Qualtek 398001-01

ChinaGB 1002-1 / 2099-1,

220V, 50 Hz-AC22 Qualtek 399012-01

PROTECTION FROM ELECTRIC SHOCK

Operators of this instrument must be protected from electric shock at all times. The owner must ensure that operators are prevented access and/or are insulated from every connection point. In some cases, connections must be exposed to potential human contact. Operators must be trained to protect themselves from the risk of electricshock. This instrument is intended for use by qualified personnel who recognize shock hazards and are familiar with safety precautions required to avoid possibly injury. In particular, operators should:

1. Keep exposed high-voltage wiring to an absolute minimum.

2. Wherever possible, use shielded connectors and cabling.

3. Connect and disconnect loads and cables only when the instrument is turned off.

4. Keep in mind that all cables, connectors, oscilloscope probes, and loads must have an appropriate voltage rating.

5. Do not attempt any repairs on the instrument, beyond the fuse replacement procedures described in this manual. Contact Avtech technical support (see page 2 for contact information) if the instrument requires servicing. Service is to be performed solely by qualified service personnel.

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ENVIRONMENTAL CONDITIONS

This instrument is intended for use under the following conditions:

1. indoor use;2. altitude up to 2 000 m;3. temperature 5 °C to 40 °C;4. maximum relative humidity 80 % for temperatures up to 31 °C decreasing

linearly to 50 % relative humidity at 40 °C;5. Mains supply voltage fluctuations up to ±10 % of the nominal voltage;6. no pollution or only dry, non-conductive pollution.

LABVIEW DRIVERS

A LabVIEW driver for this instrument is available for download on the Avtech web site,at http://www.avtechpulse.com/labview. A copy is also available in National Instruments'Instrument Driver Library at http://www.natinst.com/.

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FUSES

This instrument contains four fuses. All are accessible from the rear-panel. Two protectthe AC prime power input, and two protect the internal DC power supplies. Thelocations of the fuses on the rear panel are shown in the figure below:

AC FUSE REPLACEMENT

To physically access the AC fuses, the power cord must be detached from the rearpanel of the instrument. The fuse drawer may then be extracted using a small flat-headscrewdriver, as shown below:

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Fuses #1 and #2(AC fuses)

Fuse #4(DC fuse)

Fuse #3(DC fuse)

Fuse Drawer

Pry out the fuse drawer using a screwdriver.

DC FUSE REPLACEMENT

The DC fuses may be replaced by inserting the tip of a flat-head screwdriver into the fuse holder slot, and rotating the slot counter-clockwise. The fuse and its carrier will then pop out.

FUSE RATINGS

The following table lists the required fuses for standard models:

FusesNominalMains

VoltageRating Case Size

Recommended Replacement PartLittelfuse Part

NumberDigi-Key Stock

Number

#1, #2(AC)

115 V1.6A, 250V,Time-Delay

5×20 mm 021801.6HXP F2424-ND


5×20 mm 0218.800HXP F2418-ND

#3 (DC)

N/A1.6A, 250V,Time-Delay

5×20 mm 021801.6HXP F2424-ND

#4 (DC)


5×20 mm 0218004.HXP F2421-ND

Units with the -XP1 option have slightly different fuse requirements:

FusesNominalMains

VoltageRating Case Size

Recommended Replacement PartLittelfuse Part

NumberDigi-Key Stock

Number

#1, #2(AC)


5×20 mm 021801.6HXP F2424-ND


5×20 mm 0218.800HXP F2418-ND

#3 (DC)


5×20 mm 0218001.HXP F2419-ND

#4 (DC)


5×20 mm 0218005.HXP F2422-ND

The recommended fuse manufacturer is Littelfuse (http://www.littelfuse.com).

Replacement fuses may be easily obtained from Digi-Key (http://www.digikey.com) andother distributors.

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FRONT PANEL CONTROLS

1. POWER Switch . This is the main power switch. When turning the instrument on, there is normally a delay of 10 seconds before anything is shown on the main display, as the internal operating system boots up.

If the main menu does not appear after 30 seconds, turn off the instrument and leave it off for at least 60 seconds before applying power again.

2. OVERLOAD Indicator . When the instrument is powered, this indicator is normally green, indicating normal operation. If this indicator is yellow, an internal automatic overload protection circuit has been tripped. If the unit is overloaded (by operating atan exceedingly high duty cycle or by operating into a very low impedance), the protective circuit will disable the output of the instrument and turn the indicator light yellow. The light will stay yellow (i.e. output disabled) for about 5 seconds after which the instrument will attempt to re-enable the output (i.e. light green) for about 1second. If the overload condition persists, the output will be disabled again (i.e. light yellow) for another 5 seconds. If the overload condition has been removed, the instrument will resume normal operation.

This overload indicator may flash yellow briefly at start-up. This is not a cause for concern.

3. OUT CONNECTOR . This N-type connector provides the output to a 50Ω (or higher) load.

Caution: Voltages as high as ±500V may be present on the center conductor of this output connector. Avoid touching this conductor. Connect to this connector using standard coaxial cable, to ensure that the center conductor is not exposed.

4. SYNC OUT . This connector supplies a SYNC output that can be used to trigger other equipment, particularly oscilloscopes. This signal leads (or lags) the main output by a duration set by the "DELAY" controls and has an approximate amplitude

56

18

42

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of +3 Volts to RL > 1kΩ with a pulse width of approximately 100 ns.

5. LIQUID CRYSTAL DISPLAY (LCD) . This LCD is used in conjunction with the keypad to change the instrument settings. Normally, the main menu is displayed, which lists the key adjustable parameters and their current values. The “Programming Manual for -B Instruments” describes the menus and submenus in detail.

6. KEYPAD .

Control Name FunctionMOVE This moves the arrow pointer on the display.CHANGE This is used to enter the submenu, or to select the operating

mode, pointed to by the arrow pointer.×10 If one of the adjustable numeric parameters is displayed, this

increases the setting by a factor of ten.÷10 If one of the adjustable numeric parameters is displayed, this

decreases the setting by a factor of ten.+/- If one of the adjustable numeric parameters is displayed, and

this parameter can be both positive or negative, this changes thesign of the parameter.

EXTRA FINE This changes the step size of the ADJUST knob. In the extra-fine mode, the step size is twenty times finer than in the normal mode. This button switches between the two step sizes.

ADJUST This large knob adjusts the value of any displayed numeric adjustable values, such as frequency, pulse width, etc. The adjust step size is set by the "EXTRA FINE" button.

When the main menu is displayed, this knob can be used to move the arrow pointer.

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REAR PANEL CONTROLS

Note: some connectors may be in different positions than shown above, depending on the exact combination of options ordered.

1. AC POWER INPUT . An IEC-320 C14 three-pronged recessed male socket is provided on the back panel for AC power connection to the instrument. One end of the detachable power cord that is supplied with the instrument plugs into this socket.

2. AC FUSE DRAWER . The two fuses that protect the AC input are located in this drawer. Please see the “FUSES” section of this manual for more information.

3. DC FUSES . These two fuses protect the internal DC power supplies. Please see the“FUSES” sections of this manual for more information.

4. GATE . This TTL-level (0 and +5V) logic input can be used to gate the triggering of the instrument. This input can be either active high or active low, depending on the front panel settings or programming commands. (The instrument triggers normally when this input is unconnected). When set to active high mode, this input is pulled-down to ground by a 1 kΩ resistor. When set to active low mode, this input is pulled-up to +5V by a 1 kΩ resistor.

5. TRIG . This TTL-level (0 and +5V) logic input can be used to trigger the instrument, ifthe instrument is set to triggering externally. The instrument triggers on the rising edge of this input. The input impedance of this input is 1 kΩ. (Depending on the length of cable attached to this input, and the source driving it, it may be desirable toadd a coaxial 50 Ohm terminator to this input to provide a proper transmission line termination. The Pasternack (www.pasternack.com) PE6008-50 BNC feed-thru 50 Ohm terminator is suggested for this purpose.)

8 7

GATE

RS-232

GPIB

TRIG

AMP

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6

35 14

2

6. GPIB Connector . A standard GPIB cable can be attached to this connector to allow the instrument to be computer-controlled. See the “Programming Manual for -B Instruments” for more details on GPIB control.

7. RS-232 Connector. A standard serial cable with a 25-pin male connector can be attached to this connector to allow the instrument to be computer-controlled. A user name (“admin”) and a password (“default”, as shipped from the factory) are required when logging into a serial terminal session. The internal controller attempts to auto-sense the parity setting. It may be necessary to send a few return characters before attempting a login in order to provide enough data to allow this auto-sensing to work. (A standard Linux “agetty” process is used to implement serial control internally.) See the “Programming Manual for -B Instruments” for more details on RS-232 control.

8. Network Connector . This Ethernet connector allows the instrument to be remotely controlled using the VXI-11.3, ssh (secure shell), telnet, and http (web) protocols. See the “Programming Manual for -B Instruments” for more details.

9. AMP Connector . (Optional feature. Present on "-EA" units only.) The output amplitude can be set to track the voltage on this input. Zero Volts in corresponds to zero amplitude output, and +10V in corresponds to maximum amplitude out. This mode is activated by selecting "Ext Control" on the front-panel amplitude menu, or with the "source:voltage external" command.

21

GENERAL INFORMATION

BASIC PULSE CONTROL

This instrument can be triggered by its own internal clock or by an external TTL trigger signal. In either case, two output channels respond to the trigger: OUT and SYNC. The OUT channel is the signal that is applied to the load. Its amplitude and pulse width are variable. The SYNC pulse is a fixed-width TTL-level reference pulse used to trigger oscilloscopes or other measurement systems. When the delay is set to a positive value the SYNC pulse precedes the OUT pulse. When the delay is set to a negative value theSYNC pulse follows the OUT pulse.

These pulses are illustrated below, assuming internal triggering and a positive delay:

Figure A

If the delay is negative, the order of the SYNC and OUT pulses is reversed:

Figure B

The next figure illustrates the relationship between the signal when an external TTL-level trigger is used:

SYNC OUT(generated by theinternal oscillator)

100 ns, FIXED

MAIN OUTPUT

PULSE WIDTH

DELAY < 0

AMPLITUDE,VARIABLE

3V, FIXED


100 ns, FIXED

MAIN OUTPUT

PULSE WIDTHDELAY > 0

AMPLITUDE,VARIABLE

3V, FIXED

22

Figure C

As before, if the delay is negative, the order of the SYNC and OUT pulses is reversed.

The last figure illustrates the relationship between the signal when an external TTL-leveltrigger is used in the PWIN=PWOUT mode. In this case, the output pulse width equals the external trigger’s pulse width (approximately), and the delay circuit is bypassed:

Figure D

The delay, pulse width, and frequency (when in the internal mode), of the OUT pulse can be varied with front panel controls or via the GPIB or RS-232 computer interfaces.

SYNC OUT

100 ns, FIXED

MAIN OUTPUT

PULSE WIDTHDELAY > 0

AMPLITUDE,VARIABLE

3V, FIXED

> 50 ns

TTL LEVELS (0V and 3V-5V)

TRIG(external input)

PROPAGATION DELAY (FIXED)

MAIN OUTPUT

PWOUT ≈ PWIN

AMPLITUDE,VARIABLE

TTL LEVELS (0V and 3V-5V)



PWIN

23

TRIGGER MODES

This instrument has four trigger modes:

Internal Trigger: the instrument controls the trigger frequency, and generates the clock internally.

External Trigger: the instrument is triggered by an external TTL-level clock on the back-panel TRIG connector.

Manual Trigger: the instrument is triggered by the front-panel “SINGLE PULSE” pushbutton.

Hold Trigger: the instrument is set to not trigger at all.

These modes can be selected using the front panel trigger menu, or by using the appropriate programming commands. (See the “Programming Manual for -B Instruments” for more details.)

PULSE WIDTH MODES

This instrument has two pulse width modes:

Normal: the instrument controls the output pulse width.

PWIN=PWOUT: the output pulse width equals the pulse width of the trigger signal on the “TRIG” connector. The instrument must be in the external trigger mode.

These modes can be selected using the front panel pulse width menu, or by using the appropriate programming commands. (See the “Programming Manual for -B Instruments” for more details.)

GATING MODES

Triggering can be suppressed by a TTL-level signal on the rear-panel GATE connector. The instrument can be set to stop triggering when this input high or low, using the front-panel gate menu or the appropriate programming commands. This input can also be set to act synchronously or asynchronously. When set to asynchronous mode, the GATE will disable the output immediately. Output pulses may be truncated. When set tosynchronous mode, the output will complete the full pulse width if the output is high, and then stop triggering. No pulses are truncated in this mode.

24

ELECTRONIC AMPLITUDE CONTROL, "-EA" OPTION

The output amplitude can be set to track the voltage on this input. Zero Volts in corresponds to zero amplitude output, and +10V in corresponds to maximum amplitude out. This mode is activated by selecting "Ext Control" on the front-panel amplitude menu, or with the "source:voltage external" command. The polarity remains at its last setting.

BURST GENERATION (-BR OPTION)

The waveforms given above assume that a single output pulse is generated for each trigger event (regardless of the source). However, when the burst mode feature is used on units with the -BR option, the instrument can generate 1-500 pulses for each individual trigger event. The number of output pulses in each burst can be adjusted from 1 to 500 using the front-panel controls (using the “N” menu), or by a computer command. The time between pulses (i.e., from the falling edge of one pulse to the risingedge of the next pulse) can also varied from 200 us to 1.0 seconds from the front panel (using the “BUR” menu), or by computer command.

The figure below shows burst mode operation (i.e., N > 1) used with internal triggering:

The figure below shows burst mode operation used with external triggering:

DELAY(VARIABLE)

PULSE WIDTH(VARIABLE)


MAIN OUTPUT

BURST PULSESEPARATION

BURST COUNT (N),VARIABLE FROM 1 TO 500.(N = 3, IN THIS EXAMPLE)

PERIOD = 1 / FREQUENCY

25

The burst mode may also be used with the front-panel “Single Pulse” pushbutton as a trigger source. (Pressing the pushbutton will actually generate a single burst, rather than a single pulse, in this mode.) Computer commands can also trigger a burst.

To control the burst count and timing from the front-panel, use the “N” and “BUR” menus. To control them using computer commands, use the SOURce:PULSe:COUNt and SOURce:PULSe:SEParation commands, as described in the programming manual.

The pulse spacing is constrained by several factors:

1. The maximum PRF limitation of the instrument applies within the burst. That is, timing between two consecutive leading edges must lie between a minimum of 1/PRFMAX and a maximum of 1.0 seconds, where PRFMAX is the maximum pulse

repetition frequency specification for the instrument.

For this instrument, the maximum PRF for the instrument is 10 kHz, so the time between two leading edges within the burst may not be smaller than 100 microseconds. The total number of pulses per second (i.e., Trigger Frequency x Burst Count) must also be less than 10 kHz.

2. The maximum duty cycle limitation of the instrument can not be exceeded inside the burst. Within the burst, the duty cycle may be calculated using DCBURST =

100% x Pulse Width / (Pulse Width + Pulse Separation). The total average duty cycle is equal to DCAVG = 100% x Pulse Width x Burst Count x Trigger

Frequency. Both DCBURST and DCAVG must be less than the rated maximum

duty cycle of the instrument.

26

DELAY(VARIABLE)

PULSE WIDTH(VARIABLE)

SYNC OUT

MAIN OUTPUT

BURST PULSESEPARATION

BURST COUNT (N),VARIABLE FROM 1 TO 500.(N = 3, IN THIS EXAMPLE)



> 50 ns

TTL LEVELS(0 and 3V-5V)

For this instrument, the maximum duty cycle is 1% (2% with the -XP1 option, 4% with the -XP2 option).

PREVENTING OUTPUT STAGE FAILURE

The output stage is protected against overload conditions by an overload circuit and fuses on the main frame back panel. However, the output switching elements may fail if the unit is triggered at a PRF exceeding 10 kHz or at duty cycles resulting in an average output power in excess of 50 Watts. Heating and subsequent possible failure of the output stage is reduced if the following action is taken where possible:

PRF is kept to a minimum, i.e. operate in a low PRF range when possible rather than in a high PRF range.

Keep the output PW to a minimum.

Never apply an externally generated voltage to the output port.

Reduce the amplitude below 100 Volts before changing the output polarity. Note that internal protection circuits will prevent the polarity from switching when the amplitude is set higher than ±100V, until the internal power supplies have discharged the voltage on the internal energy-storage capacitors to below ±100V. This may take several tens of seconds.

27

OUTPUT AND LOAD IMPEDANCE (STANDARD UNITS)

OUTPUT IMPEDANCE

Standard AVR-5B-B units (without the -R50 option) have a low output impedance (nominally zero, actually < 2Ω). The output impedance is not 50Ω. (The output impedance refers to the internal resistance in series with the output.) The following consequences of this feature should be noted:

When used to switch some semiconductor devices (eg. bipolar and MOSFET transistors), this pulser will yield much faster switching times than those provided by 50 Ohm pulse generators.

This pulser will safely operate in to load impedances in the range of 50 Ohms to an open circuit. However, severe ringing may occur on the output waveform if a high-impedance load is used, due to transmission line impedance mismatching. When driving high impedance loads, it may be beneficial to add a 50 Ohm impedance in parallel with the high impedance load, in order to provide a proper termination for any transmission lines used.

This pulser may be effectively converted to a 50 Ohm output impedance generator by placing a 50 Ohm carbon composition resistor in series with the output of the unitand the load. The maximum available load voltage into a 50 Ohm load will then decrease to 250 Volts, from 500 Volts.

LOAD IMPEDANCE

The AVR-5B-B can provide voltage of up to 500V, and currents of up to 10A. When operated at maximum amplitude, the load impedance must therefore be 500V / 10A = 50Ω, or higher.

Best results (in terms of minimizing switching times and transmission line reflections) will be obtained with a 50Ω load.

Lower load impedances can be used at lower voltages, as long as the resulting output current does not exceed 10A. However, the rise and fall times may increase slightly dueto the effects of parasitic inductance – the time constant for an inductive/resistive circuitis given by L/R, so a reduction in R will increase the parasitic time constant.

The standard AVR-5B-B (without the -R50 option) can not drive a diode load directly. A series resistance (ideally 50Ω, located very close to the diode) must be added by the user.

28

OUTPUT AND LOAD IMPEDANCE (-R50 UNITS)

-R50 OPTION

The output impedance (the internal resistance in series with the output) on standard models (without the -R50 option) is low, to allow the pulsers to act as true voltage sources (ROUT ≈ 0Ω), and to maximize the voltage output into 50Ω loads. However, for some applications it may be desirable to have ROUT=50Ω. For example, this may be a convenient method of driving laser diodes in a probing station through coaxial cables and probes. The diode DUT represents a transmission line impedance mismatch, but the resulting reflections would be absorbed by the 50Ω “back-matching” of the pulser. This allows the full specified current to be delivered to the DUT (e.g., 10A for the AVR-5B-B). The -R50 switchable output impedance option is provided for these applications.The internal 50Ω output impedance is capable of dissipating the full rated average output power of the instrument. This option increases the rise and fall times by 10 ns.

SAMPLE WAVEFORMS FOR VARIOUS ROUT / RLOAD VALUES

Typical waveforms are shown below, with a set amplitude of +400V and a 1 us pulse width. The load is connected to the output connector using 6 feet / 2 meters of coaxial cabling.

ROUT = 0Ω ROUT = 50Ω

RLOAD = 22Ω

RLOAD = 50Ω

29

ROUT = 0Ω ROUT = 50Ω

RLOAD = 220Ω

RLOAD = ∞

It should be observed that maximum voltages are obtained when ROUT = 0Ω, but transmission line reflections are minimized with ROUT = 50Ω. Also, regardless of the value of ROUT, reflections and ringing are minimized when RLOAD = 50Ω.

DRIVING A DIODE LOAD DIRECTLY

If the output impedance is set to 50Ω, the instrument can drive a diode load directly. There will be a transmission line impedance mismatch at the diode, but the reflections generated by this mismatch will be largely absorbed by the 50Ω output impedance. Thereflections will not “bounce” up and down the transmission line repeatedly (just once).

This is useful for probing station setups, where a 50Ω series resistance can not be easily added to the diode load.

As an example, a BY255P-E3/54 diode was connected to the output using 6 feet of coaxial cabling, with the amplitude set to +500V, and the output impedance set to 50Ω. The following waveforms were obtained:

30

Top: +500V pulse, internally (before ROUT)Bottom: resulting +10A current, measured with a CT2 current probe (1V/A).

31

OPERATIONAL CHECK

This section describes a sequence to confirm the basic operation of the instrument. It should be performed after receiving the instrument. It is a useful learning exercise as well.

Before proceeding with this procedure, finish read this instruction manual thoroughly. Then read the “Local Control” section of the “Programming Manual for -B Instruments” thoroughly. The “Local Control” section describes the front panel controls used in this operational check - in particular, the MOVE, CHANGE, and ADJUST controls.

1. Connect a cable from the SYNC OUT connector to the TRIG input of an oscilloscope. Connect a 50Ω (or higher) load to the OUT connector and place the scope probe across this load. The load resistor must have a voltage rating of at least 500V. The power dissipated in the resistor is given by

P = (V2 / R) × (PW / T) = (V2 / R) × PW × f

where “V” is the output voltage, “R” is the load resistance, “PW” is the pulse width, and “T” is the pulse period (1/frequency), and “f” is the frequency. If a 50Ω resistor is used, the worst-case power dissipation is 50 Watts (100W with the -XP1 option, 200W with the -XP2 option). Factory tests are conducted using twenty 10Ω, 2W resistors connected in a series-parallel combination to make a 50Ω, 40W compositeload. Fan cooling the resistors allows for slightly higher power dissipation. (Ohmite “OY” ceramic composition resistors - http://www.ohmite.com - are recommended forsuch applications. These resistors are readily available from http://www.digi-key.com/ and other distributors.)

2. Set the oscilloscope to trigger externally with the vertical setting at 100 Volts/div and the horizontal setting at 1 us/div. Be sure that your oscilloscope and probe

32

AVTECHPULSER

MAIN OUTPUTCONNECTOR

SYNCOUTPUT

ACPOWER

ALL CABLES: 50 OHM COAXIAL

REAL-TIMEOSCILLOSCOPE

CHANNEL A

TRIGINPUT

SCOPEPROBE

TESTLOAD

http://www.digi-key.com/

http://www.digi-key.com/

http://www.ohmite.com/

setup can handle the maximum amplitude of 500V. A high-voltage attenuator might be necessary to avoid damaging the probe and oscilloscope. The 50Ω load resistor should be rated for at least 500V of voltage and 50W of power.

3. Turn on the AVR-5B-B. The main menu will appear on the LCD.

4. To set the AVR-5B-B to trigger from the internal clock at a PRF of 1 kHz:

The arrow pointer should be pointing at the frequency menu item. If it is not, press the MOVE button until it is.

Press the CHANGE button. The frequency submenu will appear. Rotate the ADJUST knob until the frequency is set at 1 kHz.

The arrow pointer should be pointing at the “Internal” choice. If it is not, press MOVE until it is.

Press CHANGE to return to the main menu.

5. To set the delay to 1 us:

Press the MOVE button until the arrow pointer is pointing at the delay menu item.

Press the CHANGE button. The delay submenu will appear. Rotate the ADJUST knob until the delay is set at 1 us.

The arrow pointer should be pointing at the “Normal” choice. If it is not, press MOVE until it is.


6. To set the pulse width to 1 us:

Press the MOVE button until the arrow pointer is pointing at the pulse width menuitem.

Press the CHANGE button. The pulse width submenu will appear. Rotate the ADJUST knob until the pulse width is set at 1 us.

The arrow pointer should be pointing at the “Normal” choice. If it is not, press MOVE until it is.


7. At this point, nothing should appear on the oscilloscope.

33

8. To enable the output:

Press the MOVE button until the arrow pointer is pointing at the output menu item.

Press the CHANGE button. The output submenu will appear.

Press MOVE until the arrow pointer is pointing at the “ON” choice.


9. To change the output amplitude:

Press the MOVE button until the arrow pointer is pointing at the amplitude menu item.

Press the CHANGE button. The amplitude submenu will appear. Rotate the ADJUST knob until the amplitude is set at +200V (or -200V for "-N" instruments).

Observe the oscilloscope. You should see 1 us wide, 200V pulses.

Rotate the ADJUST knob. The amplitude as seen on the oscilloscope should vary.

Reduce the amplitude to 50V (or -50V for "-N" instruments), using the adjust knob.

For "-PN" units only: Change the output polarity by pressing the “+/-” button. The output amplitude should become negative, and you should see -50V pulses on the oscilloscope. (Avoid switching polarity when the amplitude is higher than 100V. Reduce the amplitude first.)

Rotate the ADJUST knob. The amplitude as seen on the oscilloscope should vary.


10. Repeat step 9, but set the amplitude to zero.

11. This completes the operational check.

34

PROGRAMMING YOUR PULSE GENERATOR

KEY PROGRAMMING COMMANDS

The “Programming Manual for -B Instruments” describes in detail how to connect the pulse generator to your computer, and the programming commands themselves. A large number of commands are available; however, normally you will only need a few ofthese. Here is a basic sample sequence of commands that might be sent to the instrument after power-up:

*rst (resets the instrument)trigger:source internal (selects internal triggering)frequency 1000 Hz (sets the frequency to 1000 Hz)pulse:width 1 us (sets the pulse width to 1 us)pulse:delay 2 us (sets the delay to 2 us)output:impedance 50 (for units with -R50 option only)volt 200 (sets the amplitude to 200 V)output on (turns on the output)

For triggering a single event, this sequence would be more appropriate:

*rst (resets the instrument)trigger:source hold (turns off all triggering)pulse:width 1 us (sets the pulse width to 1 us)pulse:delay 2 us (sets the delay to 2 us)output on (turns on the output)output:impedance 0 (for units with -R50 option only)volt 200 (sets the amplitude to 200 V)trigger:source immediate (generates a single non-repetitive trigger event)trigger:source hold (turns off all triggering)output off (turns off the output)

To set the instrument to trigger from an external TTL signal applied to the rear-panel TRIG connector, use:

*rst (resets the instrument)trigger:source external (selects internal triggering)pulse:width 1 us (sets the pulse width to 1 us)pulse:delay 2 us (sets the delay to 2 us)output:impedance 0 (for units with -R50 option only)volt 200 (sets the amplitude to 200 V)output on (turns on the output)

These commands will satisfy 90% of your programming needs.

35

ALL PROGRAMMING COMMANDS

For more advanced programmers, a complete list of the available commands is given below. These commands are described in detail in the “Programming Manual for -B Instruments”. (Note: this manual also includes some commands that are not implemented in this instrument. They can be ignored.)

Keyword Parameter Notes

OUTPut::[STATe] <boolean value>:IMPedance 0 | 50:PROTection

:TRIPped? [query only][SOURce]:

:FREQuency[:CW | FIXed] <numeric value>

[SOURce]::PULSe

:PERiod <numeric value>:WIDTh <numeric value> | EXTernal:DCYCle <numeric value>:HOLD WIDTh | DCYCle:DELay <numeric value>:GATE

:TYPE ASYNC | SYNC:LEVel HIgh | LOw

[SOURce]::VOLTage

[:LEVel][:IMMediate]

[:AMPLitude] <numeric value> | EXTernal:PROTection

:TRIPped? [query only]STATUS:

:OPERation:[EVENt]? [query only, always returns "0"]:CONDition? [query only, always returns "0"]:ENABle <numeric value> [implemented but not useful]

:QUEStionable:[EVENt]? [query only, always returns "0"]:CONDition? [query only, always returns "0"]:ENABle <numeric value> [implemented but not useful]

SYSTem::COMMunicate

:GPIB:ADDRess <numeric value>

:SERial:CONTrol

:RTS ON | IBFull | RFR:[RECeive]

:BAUD 1200 | 2400 | 4800 | 9600 | 19200 | 38400 | 57600 | 115200:ERRor

:[NEXT]? [query only]:COUNT? [query only]

:VERSion? [query only]

36

MECHANICAL INFORMATION

TOP COVER REMOVAL

If necessary, the interior of the instrument may be accessed by removing the four Phillips screws on the top panel. With the four screws removed, the top cover may be slid back (and off).

Always disconnect the power cord and allow the instrument to sit unpowered for 10 minutes before opening the instrument. This will allow any internal stored charge to discharge.

There are no user-adjustable internal circuits. For repairs other than fuse replacement, please contact Avtech ([email protected]) to arrange for the instrument to be returned to the factory for repair. Service is to be performed solely by qualified service personnel.

Caution: High voltages are present inside the instrument during normal operation. Do not operate the instrument with the cover removed.

RACK MOUNTING

A rack mounting kit is available. The -R5 rack mount kit may be installed after first removing the one Phillips screw on the side panel adjacent to the front handle.

ELECTROMAGNETIC INTERFERENCE

To prevent electromagnetic interference with other equipment, all used outputs should be connected to shielded loads using shielded coaxial cables. Unused outputs should be terminated with shielded coaxial terminators or with shielded coaxial dust caps, to prevent unintentional electromagnetic radiation. All cords and cables should be less than 3m in length.

38

MAINTENANCE

REGULAR MAINTENANCE

This instrument does not require any regular maintenance.

On occasion, one or more of the four rear-panel fuses may require replacement. All fuses can be accessed from the rear panel. See the “FUSES” section for details.

CLEANING

If desired, the interior of the instrument may be cleaned using compressed air to dislodge any accumulated dust. (See the “TOP COVER REMOVAL” section for instructions on accessing the interior.) No other cleaning is recommended.

39

WIRING DIAGRAMSWIRING OF AC POWER (STANDARD UNITS)

1 2 3 4 5 6

A

B

C

D

654321

D

C

B

A

Ti tle

RevisionDate25-Feb-2020

Z:\engineering\pcb\158\switching60hz.ddb - USAGE\158R4 ECP - v9A.sch

QC3 HARNESS, FOR PCB158R4, XP ECP

9A

-3 -2 -1

+4

+5

+6

L

N

GG

USE 1/4" METAL STANDOFFS

PS1

+10V+15V REG+15V NSY-15V-5V+5V REG+5V NSYGND+24V, NO OLO+24V, NO OLO

+10

V+1

5V

-15V -5

V+5

VG

ND

GN

D+5

V+5

V

+24, NO OLOPOS OLOPOS OLO

20 AWG

24 AWG

NEG OLOGND

OLO GND

20 OR 24 AWG

CA

P B

AN

KG

ND

HI-

EXT

PS

NE

GIN

GN

D

GN

D

GREENGNDAMBER

DC

IND

C IN

DC

IN

GN

DG

ND

GN

D

20 AWG

PCB 158R4

HI-

EXT

PSG

ND

KA

- +

J1

J2 J3

J4

J5

J6

J7

J8

-+ J9 - FAN

J10

GNDGNDGND

20 AWG

BD1PCB 158R4

OV

TEM

P

AU

X

AK

YB

ROYG

TO LCD

TO PCB 108

TO ENCODERTO LCD

104D

BD2PCB104D KEYPAD BOARD (-B UNITS ONLY)

Chassis ground post.

G1

G2

B1G4

G3

LN

G

X2CORCOM 6EGG1-2 POWER ENTRY MODULE

1

1b

1a

2

2b

2a

X1POWER SWITCH SW325-ND (CW INDUSTRIES GRS-4022-0013)

A1 - BROWNA2 - BLUE

A3 - BLACK

A4 - WHITE

GR

N

AM

B

D1P395-ND LED

GR

N

AM

B

BL

KR

ED

WH

T X5VCC LED MOUNT

DC

FAN+ -

FAN1P9768-ND

FAN NOT

C3

- P

UR

C4

- G

RN

Molex 19073-0013 ring terminal, #8.

Molex 19002-0001. 0.250" x 0.032".

Protective conductor terminal.

Molex 19002-0009. 0.187" x 0.032"

Primary earth ground /Safety earth ground /

Secondary earth ground.

Install green/yellow wires at bottom of stack, closest to wall.

Mains circuits - hazardous live.

WARNING

Do not attempt any repairs on this instrumentbeyond the fuse replacement procedures describedin the manual. Contact Avtech if the instrumentrequires servicing. Service is to be performedsolely by qualified service personnel.

HARNESSED

CENTER IN STD SPACE

NORMALLY: ECP180PS24156E, 156F, -HC UNITS, -IPGE: ECP180PS36

STD - ALL UNITSONLY 125W+ UV UNITS

WIRING OF DC POWER

1 2 3 4 5 6

A

B

C

D

654321

D

C

B

A

RevisionPrinted25-Feb-2020

Z:\engineering\circuits\avr-N\avr-n.Ddb - AVR-7B-B-P\univ ps v17.sch

PS FOR 60W, 125W, AND 250W UV UNITS

17C

-

++

-

-

++

-

P

N

P1 N1

BD2

PCB 179B, TRIMMED

+10V+15V REG+15V NSY-15V-5V+5V REG+5V NSYGND+24V, NO OLO+24V, NO OLO

+10

V+1

5V

-15V -5

V+5

VG

ND

GN

D+5

V+5

V

+24, NO OLOPOS OLOPOS OLO

20 AWG

24 AWG

NEG OLOGND

OLO GND

20 OR 24 AWG

CA

P B

AN

KG

ND

HI-

EXT

PS

NE

GIN

GN

D

GN

D

DC

IND

C IN

DC

IN

GN

DG

ND

GN

D

20 AWG

PCB 158R4

HI-

EXT

PSG

ND

- +

J1

J2 J3

J4

J6

J8

J10

GNDGNDGND

20 AWG

BD1PCB 158R4

BLU

GRN

MOUNT WITH 1/2" STANDOFFS

P1, N1 = 15000uF, 35V x 2R1,R2 (ON BOTTOM): 1.8K OY

CHS GND

R6 (CAP BANK CHARGE) = 22 AY, ON TOP. STRAIGHTEN THE LEADS TO MINIMIZE THE HEIGHT.

CHANGES REQUIRED ON PCB 158R4:

K5 (CAP BANK DISCHARGE) = G2RL-14-DC24

C2 (OLO RESPONSE TIME) = INSTALL LATER (TYP 47, 100, OR 220 uF)

POS OLO 1

OLO GND 1

TO AC/DC CONVERTER

OLO GND 2 2 - FOR HIGH-POWER UNITS1 - ALWAYS USED

POS OLO 2 2 - FOR HIGH-POWER UNITS1 - ALWAYS USED

ALL UNITSHIGH-POWEREXTRA LINES ON

AVR-AHF-1,-2A,-2B,-3HE,-3HF,-5B,-7B,-8A, -8F,

UNITS

USE DOUBLED-UP WIRING ON HIGH-POWER UNITS WITH 125W OR 250W UV, INCLUDING:

- AVOZ-B3-B- AVOZ-D6-B- AVR-2B-B- AVR-3HE-B- UNITS WITH -XP1 OR -XP2 OPTIONS

AVO-6HF/-6HZ, AVOZ-B3, AVOZ-D,

AV-153AH-B

PCB 158R4 - LOW VOLTAGE POWER SUPPLY

PCB 156D - POLARITY CONTROL PCB (-PN UNITS)

1 2 3 4 5 6

A

B

C

D

654321

D

C

B

A

T i tle

Re vis i onDa te9-Dec-2015

Z:\mjcfiles\pcb\156\polr\polr.Ddb - PCB156D\PCB156D.sch

PCB 156D, POLARITY SWITCHING

R3 3

OY

R3 5

OY

D21N 4736A

R2 4

1K

3

21

84

U5 A

LM358

5

67

U5 B

LM358

C4

0. 1uF

+15 V

R2 3

3K

R2 8

1K

R3 2

OY

R3 4

OY

D11N 4736A

R1 8

1K

R1 5

3.9K

R2 91K

R2 5

56K

+15 V

R1 9

56K

VC C

VC C

UV - HIG H

UV + HIGH

3

21

84

U4 A

LM393

5

67

U4 B

LM393

C6

0. 1uF

C30.1uF

C50. 1uF

C70. 1uF

VC C

R2 6

1K

R2 7

3KVC C

2

31

U2 A

74ALS02

5

64

U2 B

74ALS02

8

910

U2 C

74ALS02

11

1213

U2 D

74ALS02

VC C

1

23

U3 A

74ACT0 8

4

56

U3 B

74ACT0 8

9

108

U3 C

74ACT0 8

12

1311

U3 D

74ACT0 8

SMA3TTL IN

R2 251

2

13

Q1 AMPQ6 002

6

75

Q1 BMPQ6 002

12

14

13

Q1 CMPQ6 002

10

8

9

Q1 DMPQ6 002

R1 61K

R1 41K

VC C

VC C

R1 01K

R3 0

2K

R1 33K

R1 23K

R2 0

10K

R1 71K

R1 11K

SMA1NT RIG

SMA2PTR IG

123

+4

-5

+6

K1

AQV2 21

R3 1

300

3

21

84

U1 A

LM358

C1

0.1uF

+15 V

5

67

U1 B

LM358

CC

W

W

CW

R4

5K , PMAX

R3

4.7K

CC

W

W

CW

R6

5K , NMA X

R54.7K

C2

0.1uF-15V

R9

10K

R2

10K

R727K

CC

W

W

CW

R85K , NMIN

-15V

"UV- ON" IS HIGH IF:1) "UV+ HIGH" IS LOW, AND2) "POL" IS LOW.

"UV+ ON" IS HIGH IF:1) "UV- HIGH" IS LOW, AND2) "POL" IS HIGH.

IF THE POLARITY IS SWITCHED, AND THE OPPOSITE ULTRAVOLT IS TOO HIGH, NO TRIGGERS OCCUR UNTIL THE VOLTAGE FALLS.

THIS DRIVES THE OUTPUT POLARITY RELAY.

1 2 3 4 5 6 7 8 9

J1CON9

+15 V

-15V

VC C

X3

6-32 MO UN T

X1

6-32 MO UN TX2

6-32 MO UN TX4

6-32 MO UN T

SU RFAC E MOUN T, ON B OTTOM.

R2 1

10K

R1

4. 7K

PR OV IDES R/C FILTE RIN G

HV RESISTORS USED

AVR-5: 220K + 120KAVR-5: 220K + 120K

AVR-8: 470K + 470KAVR-7: 220K + 220K

1234567

J2

640 4 56-7

VC C -15V +15 V

POL

RLYAMP

1234

J3

640 456-4

EA-P

EA -N

UV+ ON

UV- O N12

J4

640 445-2

12

J5

640 445-2

HV 1 HV 2

HV 3 HV 4

X5

HV W AR NING

X6

HV W AR NING

AVR-4: 150K + 100KAVR-3: 100K + 100K

1 2n

c3

nc

4

K3CP C133 3G

1 2n

c3

nc

4

K2CP C133 3G

R3 6

300

R3 7

300

UV

- ON

UV

+ O

N

HV -

HV +

RLY-PS

PCB 197H - HIGH VOLTAGE DISCHARGE CIRCUIT

PCB 183A-S AND 183A-P CAPACITOR BANKS

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RevisionPrinted19-Aug-2005

Z: \mjcfiles\pcb\183\hv-cap-bank.Ddb - pcb183a.sch

PCB183 CAP BANKS

1C

X2

7200K -ND, Mfg . 7200, 4-40 th read standoff 3 /8"

X4


X5


X6


X8

HV WA RN ING

X9

HV WA RN ING

X11

HV WA RN ING

R1 R2 R3

R4 R5 R6

12

J1

HV +

12

J2

HV -

12

J3

GND

12

J4

GND

P1 P2 P3

N1 N2 N3

R7 R8

R9 R10

12

J5

HV +

12

J6

HV -

12

J7

GND

12

J8

GND

P4 P5 P6

N4 N5 N6

X10


X12


X13


X14


X1

HV WA RN ING

X3

HV WA RN ING

X7

HV WA RN ING

183A-S (SERIES CAPACITOR BANK)

183A-P (PARALLEL CAPACITOR BANK)

PCB 104F - KEYPAD / DISPLAY BOARD, 1/3

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Re vis i onDa te25-Sep-2015

Z:\mjcfiles\pcb\104f\keypad-2015.ddb - Documents\Panelbrd.prj

PANEL TOP-LEVEL SCHEMATIC

12345678910

J5Amp 54999 10-1 , 10 p in s traigh t head er

I2C_INTSC LSD A

GN DVC C

SING LE PUL SE

BA CK LIGH T

EN CODEREN CODER .S CH

I2C_INTSC LSD A

GN DVC C

SING LE PUL SE

BA CK LIGH T

SD ASC LGN DVC CVC C-LEDBA CK LIGH T

LC D-BU TTLC D-BU TT. SCH

SD ASC LGN DVC CVC C-LEDBA CK LIGH T


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Z:\mjcfiles\pcb\104f\keypad-2015.ddb - Documents\ENCODER.SCH

ENCODER, BUTTONS, AND PLD

VC C

A01

A12

A23

P04

P15

P26

P37

GN D8

P49

P510

P611

P712

INT13

SC L14

SDA15

VC C16

U3

PC F8574 AN (MU ST HA VE "A" IN P/N)

A01

A12

A23

P04

P15

P26

P37

GN D8

P49

P510

P611

P712

INT13

SC L14

SDA15

VC C16

U2


I2C_INTSC LSDA

GND

VC C

VC C

C20. 1uF

C40. 1uF

VC C

VC C

VC C

VC C

C1 50. 1uF

C1 30. 1uF

RED, +5 V12

OR AN GE , B3

YELLOW , A4

GR EEN , GN D5

X6

SO LDER PADS

1A 1BMOV E

2A 2BX1 0

3A 3B+/-

4A 4BEXTRA F INE

5A 5B/10

6A 6BCHAN GE

X582-601-81, 6 b u tton key pad

A01

A12

A23

P04

P15

P26

P37

GND8

P49

P510

P611

P712

INT13

SC L14

SD A15

VC C16

U7


VC C

1A 1B

X282-101-71, 1 b u tton key pad

12

U4 A

MM7 4HC 14N

1110

U1 E

MM7 4HC 14N

SING LE PUL SE

VC C

VC C

C1 0

2.2uF

C1 1

2.2uF

C1 2

2.2uF

C9

2.2uF

C7

2.2uF

C6

2.2uF

C1

2.2uF

34

U4 B

MM7 4HC 14N

56

U4 C

MM7 4HC 14N

98

U4 D

MM7 4HC 14N

1110

U4 E

MM7 4HC 14N

1312

U4 F

MM7 4HC 14N

R1

15K

R415K

2 3 4 5 61 7 8

RN 3460 8X-1-473LF-N D

R2100 K

VC C

23456

1

78

RN2

460 8 X-2-101LF-ND

23456

1

78

RN1

460 8 X-2-101LF-ND

Q1MMBT22 22A

BUT1

BUT2

BUT3

BUT4

BUT5

BUT6

CNT3CNT2CNT1CNT0

CNT4CNT5CNT6CNT7

BUT4BUT3BUT2BUT1

BUT5BUT6

C3

0.1uF

VC C

1 2

J 8640 456-2

123

J7

640 456-3

AU XOVTEMP

CT EN4

D/U5

CL K14

LO AD11

MAX /MIN12

RC O13

A15

QA3

B1

QB2

C10

QC6

D9

QD7

U6

SN74HC 191 D

CT EN4

D/U5

CL K14

LO AD11

MAX /MIN12

RC O13

A15

QA3

B1

QB2

C10

QC6

D9

QD7

U8

SN74HC 191 D

9 8

U1 D

MM74HC 14 N

CNT4CNT5CNT6CNT7

CNT0CNT1CNT2CNT3

VC C

C1 4

0. 1uF

VC C

C1 6

0. 1uF

RED, +5 V12

OR AN GE , B3

YELLOW , A4

GR EEN , GN D5

X4

1x5 SEC TION OF BRE AK AW AY HEA DE R, R EMOV E P IN 2

VC C


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Z:\mjcfiles\pcb\104f\keypad-2015.ddb - Documents\LCD-BUTT.SCH

LCD CIRCUITS, MECHANICAL

A01

A12

A23

P04

P15

P26

P37

GND8

P49

P510

P611

P712

INT13

SC L14

SDA15

VC C16

U5


VC C

SDASC L

VC C

VC C

GN D

VC C

VC C

C50.1uF

1 2

U1 A

MM74HC 14 N

13 12

U1 F

MM74HC 14 N

5 6

U1 C

MM74HC 14 N

PA D3LED +

PA D4LED -

X34-40 MOUN T

X14-40 MOUN T

X94-40 MO UN T

X84-40 MO UN T

3 4

U1 B

MM7 4HC 14N

LC

D P

OW

ER

VC C

23456

1

78

16

9101112131415

RN 4

481 6P-2 -10 2LFC T-N D

VC C

VC C

C82.2uF

R3

22

DB 71

DB 62

DB 53

DB 44

DB 35

DB 26

DB 17

DB 08

E19

R/W10

RS11

VEE12

VS S13

VC C14

E215

NC16

LED+17

LED-18

X1 0

A3 2707-09-ND

R6

0

CC

WC

W

W

TO

P V

IEW

12

3

R5

PO T, 326 6X 10K H OR IZ

VC CBL

TP1TES T-LO OP

MAIN WIRING - POSITIVE (-P) UNITS

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Z:\engineering\circuits\avr-N\avr-n.Ddb - AVR-7B-B-P\-P wiring v18.sch

AVR-5B/7B-B-P(-XP1), AVOZ-D1/D2-B-P

18B

OU

T

MM

CX

GN

D1

GN

D2

SSR

VR

EFG

ND

3

+5V

LV+

-V/S

P/THH

V

HIG

M1PG-P

GNDGND

GN

D

OL

O

SSR EN VC

R1 = R2 = R3 =

R4 = R5 =

R6 = R7 = +5

VN

/C-1

5VG

ND

R26, R27 = UNUSEDR24, R25 =R8 =

HVHV

+24

V

GN

DO

LO

GND

LV+

GNDLV+

197H, 60 OR 125W

POS VERSION, HAS:

D2,4,5,7 NORM ORIENT.R14,18,21,22 = ZEROR13,17,19,20 = UNUSED

USE J8 IF J3 IS BLOCKED

UV1PCB 197H, POS

CONN1OUT

P2,R2

P3,R3 N3,R6

P1,R1 N1,R4

N2,R5

G G

+ + - -

G G

++

+-

-- +

++

--

-

BD1PCB 183A-S

CHS GND

P1, P2: 220uF, 400VP3: JUMPER PADS WITH #20 BUSBARN1-N3: UNUSEDR1,R2 (BOT): 220K OYR4-R6 (BOT): UNUSED

HV1

DANGER - HIGH VOLTAGES

HV2

DANGER - HIGH VOLTAGES

USE 1/2" STANDOFFS

AVR-5B, AVR-7B: ONE OUTPUT CABLE + CONN

AVOZ-D1, AVOZ-D2: FIVE IDENTICAL 0.141" SR402 (NOT SR405!)

AVR-7B (INCLUDING -XP1): 1C24-P125AVOZ-D2: 1C24-P60

AVR-5B: 1/2C24-P60 (1/2C24-P125 IF -XP1)

CHS GND

+5V

AVOZ-D1: 1/2C24-P60

CHANGES REQUIRED ON PCB 295E (PRF LIM)

AVR-5,-7: INSTALL C9 = 6800pF POLY (10 kHz)

OV

TEM

P

AU

X

AK

BD2PCB104F KEYPAD

AVOZ-D1: INSTALL C9 = 15nF POLY (5 kHz)AVOZ-D2: INSTALL C9 = 33nF POLY (2.5 kHz)

OUTPUT CABLES AND CONNS.

+15V NSY

+5V

+24V, NO OLO

-15V NOT USEDZERO

NOT USEDNOT USED

NOT USED

4.7K3266W, 5K

10 OY220 OY

AMPLITUDE, 0-10V1 OFFSET, 0-10V2 PW, 0-10V3 SPARE, 0-10V4 O.POL5 O.ZOUT/PWRNG6 O.LOGIC7 O.SQU8 O.TRI9 O.SINE10 O.EA11 O.SPEEDUP-RNG12 AMPLRNG 413 AMPLRNG 314 AMPLRNG 215 AMPLRNG 116 AMPLRNG 017 XRLY 518 XRLY 4 (EO)19 XRLY 3 (V-I)20 XRLY 2 (DUAL PW)21 XRLY 122 GATE23 EXT TRIG24 SYNC OUT25 MAIN OUT26 +5V ON/OFF27 +15V ON/OFF28

OUT

SYNC

VSPAREVPRF

GA

TE

+24

VG

ND

TRIG

AU

XG

ND

VF

NO

CNC

SW NO

C NC

AM

P

LAN

OLIMEX

295E

BD3PCB 295E

CONN3GATE

CONN4EXT TRIG

CONN2SYNC

+24V, NO OLO

FOR THE AVOZ-D1-B, WIRE THE CAP BANK GND TO THE "X" PIN INSTEAD OF "GND1", IN ORDER TO ISOLATE THE LOGIC AND PULSE GROUNDS.

IF A

VO

Z-D

1

IF N

OT

AV

OZ-

D1

308A

GND24V RLY

IO1

X1 X2

IO2

BD5 PCB 308A

NO

T -R

50

IF -R50

IF -R50

312A

IO1 IO2

BD4

PCB 312A, TWO BDS2A100100RK IN PARALLEL (100 OHM SOT-227)

-R50 UNITS ONLY

LV IN1 HV OUT2 LV IN3 HV OUT4 HV, NO OLO5 GND6

BD6

PCB 217A

+24V NO OLO

DCFAN

+

-

FAN2P15642-ND, REPLACES FAN ON LA 6/100

+24V NO OLO3" HAND-FORM COAX

3" HAND-FORM COAX

3" HAND-FORM COAX

POS OLO 1

OLO GND 1OLO GND 22 - IF 125W UV ONLY

1 - ALL MODELS

POS OLO 22 - IF 125W UV ONLY1 - ALL MODELS

RX1560 IF -XP1 (DUE TO +30V), ZERO OTHERWISE

GET NEWER DWG IF 197J USED

MAIN WIRING - DUAL-POLARITY (-PN) UNITS

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Z:\engineering\circuits\avr-N\avr-n.Ddb - AVR-7B-B-PN\wiring v8.sch

AVR-5B/7B-B-PN(-XP1) WIRING

8B

OU

T

MM

CX

GN

D1

GN

D2

SSR

VR

EFG

ND

3

+5V

LV

+

-V/S

P/T

H

HV

HIG

M1 PG-P

OU

T

MM

CX

GN

D1

GN

D2

SSR

VR

EFG

ND

3

+5V

LV+

-V/S

P/T

H

HV

HIG

M2 PG-N

P2,R2

P3,R3 N3,R6

P1,R1 N1,R4

N2,R5

G G

+ + - -

G G

++

+-

-- +

++

--

-

BD2PCB 183A-S

AM

PLIT

UD

E, 0

-10

V1

OF

FSE

T, 0

-10V

2

PW, 0

-10

V3

SPA

RE

, 0-1

0V

4

O.P

OL

5

O.Z

OU

T/P

WR

NG

6

O.L

OG

IC7

O.S

QU

8

O.T

RI

9

O.S

INE

10

O.E

A11

O.S

PE

EDU

P-R

NG

12

AM

PL

RN

G 4

13

AM

PL

RN

G 3

14

AM

PL

RN

G 2

15

AM

PL

RN

G 1

16

AM

PLR

NG

01

7

XR

LY 5

18

XR

LY 4

(EO

)1

9

XR

LY 3

(V

-I)2

0

XR

LY 2

(D

UA

L P

W)

21

XR

LY 1

22

GA

TE2

3

EXT

TR

IG2

4

SYN

C O

UT

25

MA

IN O

UT

26

+5V

ON

/OF

F2

7

+15

V O

N/O

FF28

OU

T

SY

NC

VS

PAR

EV

PR

F

GATE

+24VGND

TRIG

AUXGND

VF

NO

CNC

SW

NOCNC

AMP

LA

N

OL

IME

X

295E BD5PCB 295E

+5V-15V+15VRVRLYAMPPOL

UV- ON

UV+ ON

EA N

EA P

HV+

HV-

TRIG

IN

TRIG

P

TRIG

N

156

USE 8414K-ND 6-32 1/2 INCH STANDOFFS

TO PH HARNESS X1POLR, PCB156D

+24V, NO OLO

CHS GND

CHANGES NEED ON PCB 156D:

1) ALL: R32, R33 = 220K OY

CONN1SYNC

CONN3

GATE

CONN2

TRIG

OV

TEM

P

AU

X

AK

BD1KEYPAD

CHANGES REQUIRED ON PCB 295E (10 kHz PRF LIM)1) INSTALL C9 = 6800pF POLY (10 kHz)

GNDGND

GN

D

OL

O

SSR EN V

C

R1 = R2 = R3 =

R4 = R5 =

R6 = R7 = +

5VN/C

-15V

GN

D

R26, R27 = UNUSEDR24, R25 =R8 =

HVHV

+24

V

GN

DO

LO

GND

LV+

GNDLV+

197H, 60 OR 125W

POS VERSION, HAS:

D2,4,5,7 NORM ORIENT.R14,18,21,22 = ZEROR13,17,19,20 = UNUSED

GN

DG

ND

OU

TO

UT

D DS S

UV1

GNDGND

GN

D

OL

O

SSR E

NV

C

R1 = R2 = R3 =

R4 = R5 =

R6 = R7 = +

5VN/C

-15V

GN

D

R26, R27 =R24, R25 = UNUSEDR8 =

HVHV

197H, 60 OR 125W

NEG VERSION, HAS:

D2,4,5,7 REVERSEDR14,18,21,22 =UNUSEDR13,17,19,20 = ZERO

+24

V

GN

DO

LO

GND

LV+

GNDLV+

GN

DG

ND

OU

TO

UT

D DS S

UV2

CHS GND

NOT USED

NOT USEDZERONOT USED

NOT USEDNOT USED

NOT USED

CHS GND

NOT USED

NOT USEDZERONOT USED

NOT USEDNOT USED

NOT USED

-15V +5V -15V +5V

+5V

10 OY 10 OY

CONN4OUT

240A

GND24V RLY

NEG

POS

OUT

BD4PCB 240A

+15V NSY

+24V, NO OLO

+24V, NO OLO

CHS GND

R2

R1

-QD ONLY: TGHLV1K00JE

R3

R4

-QD ONLY: TGHLV1K00JE

-QD UNITS: HEATSUNK TO REAR PANEL-QD UNITS: HEATSUNK TO REAR PANEL

P1-P2,N1-N2: 220uF, 400V

R1-R2, R4-R5 (BOT, UNDER CAPS): 220K OYP3, N3: JUMPER PADS WITH #20 BUSBAR

R3, R6: UNUSED

AVR-7B (INCLUDING -XP1): 1C24-P125AVR-5B: 1/2C24-P60 (1/2C24-P125 IF -XP1)

POS OLO 1

OLO GND 1OLO GND 22 - IF 125W UV ONLY

1 - ALL MODELS

POS OLO 22 - IF 125W UV ONLY1 - ALL MODELS POS OLO 1

OLO GND 1OLO GND 2

POS OLO 2220 STD, UNUSED IF -QD220 STD, UNUSED IF -QD

AVR-7B (INCLUDING -XP1): 1C24-N125AVR-5B: 1/2C24-N60 (1/2C24-N125 IF -XP1)

RX1

560 IF -XP1 (DUE TO +30V), ZERO OTHERWISEGET NEWER DWG IF 197J USED

RX2

560 IF -XP1 (DUE TO +30V), ZERO OTHERWISEGET NEWER DWG IF 197J USED

2) AVR-5: R34, R35 = 100K OYAVR-7: R34, R35 = 220K OY

308A

GND24V RLY

IO1

X1 X2

IO2

BD6 PCB 308A

312A

IO1 IO2

BD3

PCB 312A, TWO BDS2A100100RK IN PARALLEL (100 OHM SOT-227)

-R50 UNITS ONLY

LV IN1 HV OUT2 LV IN3 HV OUT4 HV, NO OLO5 GND6

BD7

PCB 217A

+24V NO OLO

DCFAN

+

-

FAN1P15642-ND, REPLACES FAN ON LA 6/100

+24V NO OLO3" HAND-FORM COAX

3" HAND-FORM COAX

3" HAND-FORM COAX

IF NOT -R50

PERFORMANCE CHECK SHEET

51