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P.O. BOX 265
OGDENSBURG, NY
U.S.A. 13669-0265
A V T E C H
TEL: 888-670-8729 (USA & Canada) or +1-613-686-6675 (Intl)
FAX: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl)
info@avtechpulse.com
INSTRUCTIONS
MODEL AVR-GHV1-B
500 V, 1 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
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http://www.avtechpulse.com/
E L E C T R O N I C S
1 9 7 5
BOX 5120, LCD MERIVALE
X
OTTAWA, ONTARIO
CANADA
L T D .
K2C 3H5
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Summary of Contents for AVTECH ELECTROSYSTEMS AVR-GHV1-B
- Page 1 BOX 5120, LCD MERIVALE OGDENSBURG, NY FAX: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl) OTTAWA, ONTARIO U.S.A. 13669-0265 CANADA K2C 3H5 info@avtechpulse.com http://www.avtechpulse.com/ INSTRUCTIONS MODEL AVR-GHV1-B 500 V, 1 kHz PULSE GENERATOR WITH IEEE 488.2 AND RS-232 CONTROL SERIAL NUMBER: ____________...
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Page 2: Warranty
WARRANTY Avtech Electrosystems Ltd. warrants products of its manufacture to be free from defects in material and workmanship under conditions of normal use. If, within one year after delivery to the original owner, and after prepaid return by the original owner, this Avtech product is found to be defective, Avtech shall at its option repair or replace said defective item. -
Page 3: Table Of Contents
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....................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... - Page 4 PCB 104F - KEYPAD / DISPLAY BOARD, 2/3..............41 PCB 104F - KEYPAD / DISPLAY BOARD, 3/3..............42 MAIN WIRING – POSITIVE (-P) UNITS................43 PERFORMANCE CHECK SHEET.................44 Manual Reference: /fileserver2/officefiles/instructword/avr-g/AVR-GHV1-B,ed3.odt. Last modified June 14, 2018. Copyright © 2018 Avtech Electrosystems Ltd, All Rights Reserved.
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Page 5: Introduction
80%. Rise and fall times are fixed at less than 40 ns. The AVR-GHV1-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: Available Options
AVAILABLE OPTIONS -BR Option: This optional feature allows a burst of 1-500 pulses to be generated in response to each trigger event. -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. -
Page 7: High-Voltage Precautions
HIGH-VOLTAGE PRECAUTIONS CAUTION: This instrument provides output voltages as high as 500 Volts under normal operating conditions, and generates up to 530V 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. -
Page 8: Specifications
SPECIFICATIONS Model: AVR-GHV1-B Amplitude: <25 to 500 Volts Number of adjustable voltages: 1 (V Waveform style (in terms of the At V during pulse, zero between pulses. set amplitude): Pulse width (FWHM) 200 ns to 0.5 sec Load impedance: ≥ 100 kΩ... -
Page 9: Regulatory Notes
This instrument does not normally require regular maintenance to minimize interference potential. However, if loose hardware or connectors are noted, they should be tightened. Contact Avtech (info@avtechpulse.com) if you require assistance. EC DECLARATION OF CONFORMITY Avtech Electrosystems Ltd. P.O. Box 5120, LCD Merivale Ottawa, Ontario Canada K2C 3H5 declare that this pulse generator meets the intent of Directive 2004/108/EG for Electromagnetic Compatibility. -
Page 10: Directive 2011/65/Eu (Rohs)
(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 listed maximum value. -
Page 11: Firmware Licensing
compliance. Normally, such responsibilities with lie with the representative, unless other arrangements (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. -
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
Destination Region Description Option Manufacturer Part Number United Kingdom, Hong Kong, BS 1363, -AC00 Qualtek 370001-E01 Singapore, Malaysia 230V, 50 Hz AS 3112:2000, Australia, New Zealand -AC01 Qualtek 374003-A01 230-240V, 50 Hz Continental Europe, Korea, European CEE 7/7 -AC02 Qualtek 364002-D01 Indonesia, Russia “Schuko”... -
Page 14: Environmental Conditions
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;... -
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: Nominal Recommended Replacement Part 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.
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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 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. See the “Programming Manual for -B Instruments”...
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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.
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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: Output Impedance
2 meters (6 feet). LOAD IMPEDANCE The AVR-GHV1-B can drive load impedances of 100 kΩ or higher. It is NOT designed to drive 50 Ω loads or highly capacitive loads. (The AVR-GHV1-B is tested with capacitive loads of 330 pF. Load capacitance should not exceed 330 pF.) - Page 25 > 50 ns TRIG TTL LEVELS (external input) (0 and 3V-5V) PROPAGATION DELAY (FIXED) SYNC OUT BURST COUNT (N), VARIABLE FROM 1 TO 500. PULSE WIDTH DELAY (N = 3, IN THIS EXAMPLE) (VARIABLE) (VARIABLE) MAIN OUTPUT BURST PULSE SEPARATION The burst mode may also be used with the front-panel “Single Pulse”...
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Page 26: 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 if the load impedance is too low (< 100 kΩ... -
Page 27: Operational Check
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”... - Page 28 3. Turn on the AVR-GHV1-B. The main menu will appear on the LCD. 4. To set the AVR-GHV1-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 29 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.
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Page 30: 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 31: 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 32 :SOURce INTernal | EXTernal | MANual | HOLD | IMMediate *CLS [no query form] *ESE <numeric value> *ESR? [query only] *IDN? [query only] *OPC *SAV 0 | 1 | 2 | 3 [no query form] *RCL 0 | 1 | 2 | 3 [no query form] *RST [no query form]...
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Page 33: Mechanical Information
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. -
Page 34: 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 35: Wiring Diagrams
WIRING DIAGRAMS WIRING OF AC POWER M ains circuits - haz ardous live. Do not attempt any repairs on this instrument beyond the fuse replacement procedures described in the manual . Contact Av tech if the instrument A3 - BLACK requir es serv icing. -
Page 36: Pcb 158R4 - Low Voltage Power Supply
PCB 158R4 - LOW VOLTAGE POWER SUPPLY... -
Page 37: Pcb 284B - High Voltage Dc Power Supply
PCB 284B - HIGH VOLTAGE DC 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 156D - Polarity Control (-Pn Units Only)
PCB 156D – POLARITY CONTROL (-PN UNITS ONLY) R2 8 R2 3 "UV- ON" IS HIGH IF: 1) "UV+ HIGH" IS LOW, AND +1 5 V VC C VC C 2) "POL" IS LOW. R1 9 0 . 1 u F R1 2 R1 6 5 6 K... -
Page 40: 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 41: 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 42: 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 43: Main Wiring - Positive (-P) Units
MAIN WIRING – POSITIVE (-P) UNITS USE 1/2" ST ANDOFFS P1, P2: 220uF, 400V P3: JUM PER PADS WIT H #20 BUSBAR N1-N3: UNUSED VPRF R1,R2 (BOT ): 100K OY +1 5V NSY VSPARE R3-R6 (BOT ): UNUSED +5 V PG-P PCB 1 83A-S SYNC... -
Page 44: Performance Check Sheet
PERFORMANCE CHECK SHEET...
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