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Avtech AVR-5B-B Instructions Manual

0 to 500 volts, 10 khz pulse generator
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P.O. BOX 265
OGDENSBURG, NY
U.S.A. 13669-0265
TEL: (315) 472-5270
FAX: (613) 226-2802
A V T E C H
TEL: 1-800-265-6681
FAX: 1-800-561-1970
e-mail: info@avtechpulse.com
http://www.avtechpulse.com/
INSTRUCTIONS
MODEL AVR-5B-B
0 TO 500 Volts, 10 kHz PULSE GENERATOR
WITH IEEE 488.2 AND RS-232 CONTROL
SERIAL NUMBER: ____________
E L E C T R O S Y S T E M S
N A N O S E C O N D
W A V E F O R M
S I N C E
E L E C T R O N I C S
1 9 7 5
BOX 5120, LCD MERIVALE
X
OTTAWA, ONTARIO
CANADA
TEL: (613) 226-5772
FAX: (613) 226-2802
1
L T D .
K2C 3H4

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  • Page 1 U.S.A. 13669-0265 CANADA K2C 3H4 TEL: (315) 472-5270 e-mail: info@avtechpulse.com TEL: (613) 226-5772 FAX: (613) 226-2802 http://www.avtechpulse.com/ FAX: (613) 226-2802 INSTRUCTIONS MODEL AVR-5B-B 0 TO 500 Volts, 10 kHz PULSE GENERATOR WITH IEEE 488.2 AND RS-232 CONTROL SERIAL NUMBER: ____________...

  • 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 AVAILABLE OPTIONS......................5 HIGH-VOLTAGE PRECAUTIONS..................6 SPECIFICATIONS......................7 EUROPEAN REGULATORY NOTES................8 EC DECLARATION OF CONFORMITY..................8 DIRECTIVE 2002/95/EC (RoHS).....................8 INSTALLATION.......................9 VISUAL CHECK........................9 POWER RATINGS........................9 CONNECTION TO THE POWER SUPPLY................9 ENVIRONMENTAL CONDITIONS..................10 LABVIEW DRIVERS......................10 FUSES...........................
  • Page 4 PCB 104D - KEYPAD / DISPLAY BOARD, 2/3..............8 PCB 104D - KEYPAD / DISPLAY BOARD, 3/3..............9 MAIN WIRING - DUAL POLARITY UNITS (-PN)..............10 PERFORMANCE CHECK SHEET..................0 Manual Reference: /fileserver1/officefiles/instructword/avr-5/AVR-5B-B,edition8.sxw. Last modified February 29, 2024. Copyright © 2024 Avtech Electrosystems Ltd, All Rights Reserved.

  • Page 5: Introduction

    100 ns to 100 us, and the duty cycle may be as high as 1%. Rise and fall times are fixed at less than 30 ns. 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.

  • Page 6: 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 7: Specifications

    SPECIFICATIONS Model AVR-5B-B Amplitude: (R ≥ 50 Ohms) 0 to 500 Volts Output impedance: 2 Ohms, approximately Rise and fall times: ≤ 30 ns Pulse width 100 ns to 100 us PRF: external trigger mode: 0 to 10 kHz internal trigger:...

  • Page 8: European Regulatory Notes

    This instrument is exempt from Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the Restriction of the use of certain Hazardous Substances (RoHS) in electrical and electronic equipment. Specifically, Avtech instruments are considered "Monitoring and control instruments" (Category 9) as defined in Annex 1A of Directive 2002/96/EC.

  • Page 9: 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 10: 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 11: 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 12: 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: Nominal Manufacturer’s Distributor’s...

  • Page 13: Front Panel Controls

    FRONT PANEL CONTROLS 1. POWER Switch . This is the main power switch. When turning the instrument on, there may be a delay of several seconds before the instrument appears to respond. 2. OVERLOAD Indicator . When the instrument is powered, this indicator is normally green, indicating normal operation.
  • Page 14 “Programming Manual for -B Instruments” describes the menus and submenus in detail. 6. KEYPAD . Control Name Function MOVE 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.

  • Page 15: Rear Panel Controls

    REAR PANEL CONTROLS GRN=LNK GATE YEL=ACT TRIG RS-232 GPIB 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.
  • Page 16 8. LAN Connector and Indicator . (Optional feature. Present on -TNT units only.) The - TNT option "Internet-enables" Avtech pulse generators by adding this standard Ethernet port to the rear panel, in addition to the IEEE-488.2 GPIB and RS-232 ports normally found on "-B"...

  • Page 17: 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 18: Trigger Modes

    > 50 ns TRIG TTL LEVELS (external input) (0V and 3V-5V) PROPAGATION DELAY (FIXED) 100 ns, FIXED SYNC OUT 2V, 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 19: Pulse Width 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 20: Output Impedance

    "source:voltage external" command. The polarity remains at its last setting. OUTPUT IMPEDANCE The AVR-5B-B features an output impedance of the order of several Ohms (rather than 50 Ohms). The following consequences of this feature should be noted: ...

  • Page 21: Operational Check

    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.
  • Page 22 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.
  • Page 23  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. To change the output amplitude:  Press the MOVE button until the arrow pointer is pointing at the amplitude menu item.

  • Page 24: 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 25: All Programming Commands

    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.
  • Page 26 :[TYPE] EVEN | ODD | NONE :SBITS 1 | 2 :ERRor :[NEXT]? [query only] :COUNT? [query only] :VERSion? [query only] TRIGger: :SOURce INTernal | EXTernal | MANual | HOLD | IMMediate *CLS [no query form] *ESE <numeric value> *ESR? [query only] *IDN? [query only] *OPC...

  • Page 27: Mechanical Information

    Always disconnect the power cord before opening the instrument. 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. Caution: High voltages are present inside the instrument during normal operation.

  • Page 28: 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 29: Wiring Diagrams

    WIRING DIAGRAMS WIRING OF AC POWER 1/2 TPVP103-240042 is installed using four M2.5-0.45X12 screws. POWER SWITCH SW32 5 -ND ( CW IND USTRIES GRS-4 0 22 -0 0 1 3 ) ROUTE TPVP103-240042 WIRES TOWARDS THE REAR. Crimp switch with: Molex 19002-0009. 0.187" x 0.032" 22-01- 1022, A3 - BLACK A1 - YELLOW...

  • Page 30: Wiring Of Ac Power 2/2

    STRAIN R ELIEF: 643077-2 PCB 1 5 8G TO QC3 HARNESS INSTALL C2 (1000uF, 35V, P5169-ND) ON PCB BEFORE SCREW ING IN PCB158 Title AVR-5B-B POWER SUPPLY Date Rev ision 3-Feb-2005 P: \circuit s\ avr-N\avr-N. ddb - AVR-5B-B-PN\univ ps v1.sch...

  • Page 31: Pcb 158G - Low Voltage Power Supply, 1/3

    PCB 158G - LOW VOLTAGE POWER SUPPLY, 1/3 p cb 1 58 g _ ov p p cb 1 58 g _ ov p .sch +1 5V +1 5V +1 5V GN D GN D P-OU T # 1 P-OU T # 1 -1 5 V -1 5 V -1 5 V...

  • Page 32: Pcb 158G - Low Voltage Power Supply, 2/3

    PCB 158G - LOW VOLTAGE POWER SUPPLY, 2/3 8 3 08 3 5 FUSEHO LDER 6 4 04 4 5 -6 TEST-LOO P TEST-LOO P S1 A S1 B, OR D C S2 A, O R DC S2 B 4 3 4- 13 -1 0 0 M C2 0 C1 9 C2 1...

  • Page 33: Pcb 158G - Low Voltage Power Supply, 3/3

    PCB 158G - LOW VOLTAGE POWER SUPPLY, 3/3 CAPBANK 1 .5 K O Y C2 3 BLEED ER 1 0 00 u F,3 5 V (P5 16 9 -ND ) HV WA RN ING SHO RTS OU T B ASE WHEN C HAR GING. 1 N5 3 0 5 L6 27 1 1 R1 5...

  • Page 34: Pcb 157 - High-Voltage Discharge Board

    PCB 157 - HIGH-VOLTAGE DISCHARGE BOARD The discharge circuitry is disabled by the '123 if the UV status pin indicates that the UV is current-limiting. This is ignored if the status pin is low because the POLR PCB has disabled the UV. TO HV CAP 1 0 0 OY 1 N4 9 3 7 (REVERSE FOR -N )

  • Page 35: Pcb 156 - Polarity Control Board (-Pn Units Only)

    PCB 156 - POLARITY CONTROL BOARD (-PN UNITS ONLY) R2 8 R2 3 "UV- ON" IS HIGH IF: 1) "UV+ HIGH" IS LOW, AND +1 5V 2) "POL" IS LOW. R1 9 R1 2 0 .1 u F R1 6 5 6 K SUR FA CE MOU NT, ON B OTTOM.

  • Page 36: Pcb 104D - Keypad / Display Board, 1/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 1/3 AH E10 G- ND, Mfg 49 9 9 10 -1 , 1 0 pin straig h t h ead er LCD-BUTT LCD-BUTT.SCH GN D GN D VCC-LED VCC-LED BACKLIG HT BACKLIG HT ENCOD ER ENCOD ER.SCH I2 C_ INT...

  • Page 37: Pcb 104D - Keypad / Display Board, 2/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 2/3 U4 A C1 0 PIN3 2 .2 u F C1 5 C1 3 1 5 K MM7 4H C1 4 N 0 .1 u F 0 .1 u F 0 .1 u F 0 .1 u F GN D U4 B...

  • Page 38: Pcb 104D - Keypad / Display Board, 3/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 3/3 2 2 uF 0 .1 u F GN D IN T GN D PAD 3 PAD 4 PCF8 5 7 4A PN LED+ LED- U1 A U1 C MM7 4H C1 4 N MM7 4H C1 4 N 2 .7 OH M, 2 W U1 B...

  • Page 39: Main Wiring - Dual Polarity Units (-Pn)

    GN D Title AVR-5B-B-PN WIRING P1 2 EA IN OP1 B MAIN BOA RD, PCB 1 0 8H Date Rev ision 3-Feb-2005 HI GH CURREN T POLARITY SWITCH, WITH 2 4 V RELAY P: \circuit s\ avr-N\avr-N. ddb - AVR-5B-B-PN\wiring v4.sch...

  • Page 40: Performance Check Sheet

    PERFORMANCE CHECK SHEET...

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