Table of Contents
Advertisement
Quick Links
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-G1-B
250 Volt, 10 kHz, 100 ns to 1 ms
PULSE GENERATOR
WITH IEEE 488.2 / RS-232 / ETHERNET CONTROL
SERIAL NUMBER:
14119
Advertisement
Table of Contents
Related Manuals for Avtech AVR-G1-B
Summary of Contents for Avtech AVR-G1-B
- Page 1 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-G1-B 250 Volt, 10 kHz, 100 ns to 1 ms PULSE GENERATOR WITH IEEE 488.2 / RS-232 / ETHERNET 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 -ADA SPECIAL OPTION......................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........................ - Page 4 PCB 183A-S AND 183A-P CAPACITOR BANKS..............39 PCB 104G - KEYPAD / DISPLAY BOARD................40 MAIN WIRING - POSITIVE POLARITY (-P) UNITS..............41 PERFORMANCE CHECK SHEET.................42 Manual Reference: /fileserver2/officefiles/instructword/avr-g/AVR-G1-B,ed5.odt. Last modified March 16, 2021. Copyright © 2021 Avtech Electrosystems Ltd, All Rights Reserved.
-
Page 5: Introduction
10 kΩ or higher. The pulse width is variable from 100 ns to 1 ms, and the duty cycle may be as high as 80%. Rise and fall times are fixed at less than 20 ns. The AVR-G1-B includes an internal trigger source, but it can also be triggered or gated by an external source. -
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. -OT Option: Allows a DC offset (in the range of -50V to +50V) to be added to the output. -
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 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 18 “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 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: Dc Offset (-Ot Option)
DC OFFSET (-OT OPTION) Instruments with the “-OT” offset option can add a ±50V offset to the output. This is subject to the limitation that when generating a pulse with positive amplitude, the peak voltage (offset plus amplitude) must remain above zero, and when generating a pulse with negative amplitude, the offset plus amplitude must remain below zero. -
Page 24: Pulse Width Modes
No pulses are truncated in this mode. OUTPUT IMPEDANCE The AVR-G1-B has an output impedance (i.e., an internal resistance in series with the output) of 50 Ohms, to provide transmission line back-matching and short-circuit protection. -
Page 25: Load Impedance
2 meters (6 feet). LOAD IMPEDANCE The AVR-G1-B can drive load impedances of 10 kΩ or higher. It is NOT designed to drive 50 Ω loads or highly capacitive loads. (The AVR-G1-B is tested with capacitive loads of 330 pF. - Page 26 > 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”...
-
Page 27: 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 10 kHz or if the load impedance is too low (< 10 kΩ... -
Page 28: 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 29 3. Turn on the AVR-G1-B. The main menu will appear on the LCD. 4. To set the AVR-G1-B to trigger from the internal clock at a PRF of 10 kHz: The arrow pointer should be pointing at the frequency menu item. If it is not, press the MOVE button until it is.
- Page 30 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 31: 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 32: 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 33 :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]...
-
Page 34: 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 35: 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 36: Wiring Diagrams
WIRING DIAGRAMS WIRING OF AC POWER M a ins circuits - ha z ard ou s live . Do not attem pt any repairs on this instrument bey ond the fuse replacement procedures described A3 - BLACK in the m anual. Contact Av tech if the instrument requires serv icing. -
Page 37: Pcb 158R5 - Low Voltage Power Supply
PCB 158R5 - LOW VOLTAGE POWER SUPPLY... -
Page 38: Pcb 284C - High Voltage Dc Power Supply
PCB 284C - HIGH VOLTAGE DC POWER SUPPLY... -
Page 39: 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 40: Pcb 104G - Keypad / Display Board
PCB 104G - KEYPAD / DISPLAY BOARD... -
Page 41: Main Wiring - Positive Polarity (-P) Units
MAIN WIRING - POSITIVE POLARITY (-P) UNITS USE 1/2" ST ANDOFFS P4-P6: STD : 47uF, 450V (338-3659-ND) T EK 2: 220uF, 400V (P6850-ND) N4-N6: UNUSED VPRF R7,R8 (BOT ): 100K OY PCB 295F +15V NSY VSPARE R9-R10 (BO T ): UNUSED PG-P PCB 183A-P SYNC... -
Page 42: Performance Check Sheet
PERFORMANCE CHECK SHEET...
Need help?
Do you have a question about the AVR-G1-B and is the answer not in the manual?
Questions and answers