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Avtech AVR-8F-B-P-ADB1A Instructions Manual

With ieee 488.2 and rs-232 control
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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
info@avtechpulse.com
Tel: 888-670-8729 (USA & Canada) or +1-613-686-6675 (Intl)
BOX 5120, LCD MERIVALE
http://www.avtechpulse.com/
Fax: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl)
OTTAWA, CANADA K2C3H5
INSTRUCTIONS
MODEL AVR-8F-B-P-ADB1A
1000 V, 1 kHz PULSE GENERATOR
WITH IEEE 488.2 AND RS-232 CONTROL
SERIAL NUMBER:
13943

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  • Page 1 Tel: 888-670-8729 (USA & Canada) or +1-613-686-6675 (Intl) BOX 5120, LCD MERIVALE http://www.avtechpulse.com/ Fax: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl) OTTAWA, CANADA K2C3H5 INSTRUCTIONS MODEL AVR-8F-B-P-ADB1A 1000 V, 1 kHz PULSE GENERATOR WITH IEEE 488.2 AND RS-232 CONTROL SERIAL NUMBER: 13943...

  • Page 2: Warranty

    Avtech product is found to be defective, Avtech shall at its option repair or replace said defective item. This warranty does not apply to units which have been dissembled, modified or subjected to conditions exceeding the applicable specifications or ratings.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS WARRANTY........................2 TECHNICAL SUPPORT....................2 TABLE OF CONTENTS....................3 INTRODUCTION.......................5 HIGH-VOLTAGE PRECAUTIONS..................7 SPECIFICATIONS......................8 REGULATORY NOTES....................9 FCC PART 18.......................... 9 EC DECLARATION OF CONFORMITY..................9 DIRECTIVE 2011/65/EU (RoHS)...................10 DIRECTIVE 2002/96/EC (WEEE)..................10 FIRMWARE LICENSING.......................11 INSTALLATION......................12 VISUAL CHECK........................12 POWER RATINGS........................ 12 CONNECTION TO THE POWER SUPPLY................12 PROTECTION FROM ELECTRIC SHOCK................13 ENVIRONMENTAL CONDITIONS..................14 LABVIEW DRIVERS......................
  • Page 4 PCB 104F - KEYPAD / DISPLAY BOARD, 1/3..............39 PCB 104F - KEYPAD / DISPLAY BOARD, 2/3..............40 PCB 104F - KEYPAD / DISPLAY BOARD, 3/3..............41 MAIN WIRING........................42 PERFORMANCE CHECK SHEET.................43 Manual Reference: /fileserver2/officefiles/instructword/avr-8/AVR-8F-B-P-ADB1A,ed1.odt. Last modified January 8, 2020. Copyright © 2020 Avtech Electrosystems Ltd, All Rights Reserved.

  • Page 5: Introduction

    The AVR-8F-B-P-ADB1A 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.
  • Page 6 output stage for several seconds if an average power overload exists. After that time, the unit operates normally for a short time, and if the overload condition persists, the power is cut again. This cycle repeats until the overload is removed. A second (faster) circuit actively reduces the output pulse width if the output current exceeds twice the rated maximum, approximately (i.e., 2 ×...

  • Page 7: High-Voltage Precautions

    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.

  • Page 8: Specifications

    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 than relying on the accuracy of the pulse generator settings.

  • Page 9: Regulatory Notes

    If interference is observed, check that appropriate well-shielded cabling is used on the output connectors. Contact Avtech (info@avtechpulse.com) for advice if you are unsure of the most appropriate cabling. Also, check that your load is adequately shielded. It may be necessary to enclose the load in a metal enclosure.

  • Page 10: Directive 2011/65/Eu (Rohs)

    < 1000 ppm (0.1% by mass) DIRECTIVE 2002/96/EC (WEEE) European customers who have purchased this equipment directly from Avtech will have completed a “WEEE Responsibility Agreement” form, accepting responsibility for WEEE compliance (as mandated in Directive 2002/96/EC of the European Union and local...

  • Page 11: Firmware Licensing

    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 other arrangements (under Article 9) have been made.

  • Page 12: Installation

    INSTALLATION VISUAL CHECK After unpacking the instrument, examine to ensure that it has not been damaged in shipment. Visually inspect all connectors, knobs, liquid crystal displays (LCDs), and the handles. 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.

  • Page 13: Protection From Electric Shock

    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...

  • Page 14: Environmental Conditions

    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/.

  • Page 15: Fuses

    FUSES This instrument contains four fuses. All are accessible from the rear-panel. Two protect the AC prime power input, and two protect the internal DC power supplies. The locations of the fuses on the rear panel are shown in the figure below: Fuses #1 and #2 Fuse #4 Fuse #3...

  • Page 16: Dc Fuse Replacement

    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: Recommended Replacement Part Nominal Fuses...

  • Page 17: Front Panel Controls

    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.
  • Page 18 of +3 Volts to R > 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.

  • Page 19: Rear Panel Controls

    REAR PANEL CONTROLS GATE TRIG RS-232 GPIB 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.
  • Page 20 When triggering externally, the instrument can be set such that the output pulse width tracks the pulse width on this input, or the output pulse width can be set independently. 6. GPIB Connector . A standard GPIB cable can be attached to this connector to allow the instrument to be computer-controlled.

  • Page 21: General Information

    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.
  • Page 22 > 50 ns TRIG TTL LEVELS (external input) (0V and 3V-5V) PROPAGATION DELAY (FIXED) 100 ns, FIXED SYNC OUT 3V, FIXED DELAY > 0 PULSE WIDTH AMPLITUDE, VARIABLE MAIN OUTPUT 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-level trigger is used in the PW mode.

  • Page 23: Trigger Modes

    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.

  • Page 24: Load Resistance

    LOAD RESISTANCE The minimum pulse width is 100 ns. The maximum pulse width depends on the load resistance: × 10 uF, up to a maximum of 1 second LOAD The maximum duty cycle depends on the set amplitude and the load resistance: = 100% ×...

  • Page 25: Preventing Output Stage Failure

    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 1 kHz or at duty cycles resulting in an average output power in excess of 5 Watts.

  • Page 26: Operational Check

    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. REAL-TIME AVTECH OSCILLOSCOPE PULSER SCOPE...
  • Page 27 3. Turn on the AVR-8F-B-P-ADB1A. The main menu will appear on the LCD. 4. To set the AVR-8F-B-P-ADB1A to trigger from the internal clock at a PRF of 100  The arrow pointer should be pointing at the frequency menu item. If it is not, press the MOVE button until it is.
  • Page 28  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.  Press CHANGE to return to the main menu. 9.

  • Page 29: Programming Your Pulse Generator

    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 of these.

  • Page 30: All Programming Commands

    output:impedance 0 (sets the output impedance to 0Ω. The only other allowed setting is output:impedance 50.) pulse:width 1 us (sets the pulse width to 1 us) pulse:delay 2 us (sets the delay to 2 us) volt 200 (sets the amplitude to 200 V) output on (turns on the output) These commands will satisfy 90% of your programming needs.
  • Page 31 :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]...

  • Page 32: Mechanical Information

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

  • Page 33: Maintenance

    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.

  • Page 34: Wiring Diagrams

    WIRING DIAGRAMS WIRING OF AC POWER M ains circuits - haz ardous live . A3 - BLACK Do not attempt any repairs on this instrument POWER SWIT CH SW325-ND (CW INDUSTRIES GRS-4022-0013) beyond the fuse replacement procedures described NORMALLY: ECP180PS24 in the manual .

  • Page 35: Wiring Of Dc Power Supplies

    WIRING OF DC POWER SUPPLIES M OUNT WIT H 1/2" ST ANDO FFS P1, N1 = 15000uF, 35V x 2 R1,R2 (O N BOT T OM ): 1.8K O Y CHS GND G RN T O AC/DC CONVERT ER PCB 179B, TRIM MED EXT RA LINES O N HIG H-PO WER ALL UNIT S...

  • Page 36: Pcb 158R4 - Low Voltage Power Supply

    PCB 158R4 - LOW VOLTAGE POWER SUPPLY...

  • Page 37: Pcb 197H - High-Voltage Power Supply

    PCB 197H - HIGH-VOLTAGE POWER SUPPLY...

  • Page 38: Pcb 183A-S And 183A-P Capacitor Banks

    PCB 183A-S AND 183A-P CAPACITOR BANKS 183A-S (SERIES CAPACIT OR BANK) 7 2 00 K -ND, Mfg . 7 2 0 0, 4-4 0 th read stando ff 3 /8" HV + GN D 7 2 00 K -ND, Mfg . 7 2 0 0, 4-4 0 th read stando ff 3 /8" X1 1 7 2 00 K -ND, Mfg .

  • Page 39: Pcb 104F - Keypad / Display Board, 1/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 1/3 Amp 5 4 9 9 9 1 0 -1 , 1 0 p in strai g h t h ead er LC D-BU TT LC D-BU TT. SCH SD A SD A SC L SC L GN D...

  • Page 40: Pcb 104F - Keypad / Display Board, 2/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 2/3 U4 A VC C C1 0 VC C BU T1 VC C 2 . 2 u F C1 5 C1 3 0 . 1 u F 0 . 1 u F 0 . 1 u F 0 .

  • Page 41: Pcb 104F - Keypad / Display Board, 3/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 3/3 VC C VC C 0 . 1 u F 2 . 2 u F GN D VC C VC C VC C SD A SD A SC L SC L GN D PA D3 PA D4 PC F8 5 7 4 AN (MU ST HA VE "A"...

  • Page 42: Main Wiring

    MAIN WIRING +24V, NO OLO HV, NO OLO USE 1/2" ST ANDOFFS HV OUT LV IN PCB 183A-S +15V NSY HV OUT LV IN P1-P3: 470uF, 420V PCB 217A, HIGH-I RELAY DRIVER, +24V N1-N3: 470uF, 420V (O PPO SIT E O F SILKSCREEN +/-) R1-R6 (BOT , UNDER CAPS): 150K OY P3,R3 N3,R6...

  • Page 43: Performance Check Sheet

    PERFORMANCE CHECK SHEET...

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