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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 +1-613-226-5772 (Intl)
FAX: 800-561-1970 (USA & Canada) or +1-613-226-2802 (Intl)
info@avtechpulse.com
INSTRUCTIONS
MODEL AVR-A-1-S2-C
0 TO 200 VOLTS, 2 ns RISE TIME
HIGH PERFORMANCE 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 3H4
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Summary of Contents for Avtech AVR-A-1-S2-C
- Page 1 FAX: 800-561-1970 (USA & Canada) or +1-613-226-2802 (Intl) OTTAWA, ONTARIO U.S.A. 13669-0265 CANADA K2C 3H4 info@avtechpulse.com http://www.avtechpulse.com/ INSTRUCTIONS MODEL AVR-A-1-S2-C 0 TO 200 VOLTS, 2 ns RISE TIME HIGH PERFORMANCE PULSE GENERATOR WITH IEEE 488.2 AND RS-232 CONTROL SERIAL NUMBER: ____________...
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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 DIRECTIVE 2002/96/EC (WEEE)....................8 INSTALLATION......................10 VISUAL CHECK........................10 POWER RATINGS........................10 CONNECTION TO THE POWER SUPPLY................10 PROTECTION FROM ELECTRIC SHOCK................11 ENVIRONMENTAL CONDITIONS..................11 FUSES..........................13 AC FUSE REPLACEMENT....................13... - Page 4 PCB 158M - LOW VOLTAGE POWER SUPPLY, 2/3............26 PCB 158M - LOW VOLTAGE POWER SUPPLY, 3/3............27 PCB 168B - HIGH-VOLTAGE POWER SUPPLY..............28 PCB 126C - OSCILLATOR....................29 MAIN WIRING........................30 PERFORMANCE CHECKSHEET..................31 Manual Reference: Z:\officefiles\instructword\avr-a-1\AVR-A-1-S2-C,ed2.odt. Last modified August 19, 2008. Copyright © 2008 Avtech Electrosystems Ltd, All Rights Reserved.
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Page 5: Introduction
"-N" model suffix can generate 0 to -200V. Instruments with the "-PN" suffix can generate both polarities. The AVR-A-1-S2-C is a highly flexible instrument. Aside from the internal trigger source, it can also be triggered or gated by external TTL-level signals. A front-panel pushbutton or a computer command 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-A-1-S2-C Amplitude 3,4,5 : (50 Ohm load) 0 to 200 Volts Pulse width 10 ns to 200 ns PRF: 0 to 10 kHz Rise and fall time: ≤ 2 ns Maximum duty cycle: 0.2% Maximum avg. output power: 1.6 Watts... -
Page 8: European Regulatory Notes
Directive 2002/96/EC categories 1-7 and 10, as stated in the "Article 2 - Scope" section of Directive 2002/95/EC. 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... - Page 9 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.
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Page 10: Installation
INSTALLATION VISUAL CHECK After unpacking the instrument mainframe and the transformer module, examine to ensure that they have not been damaged in shipment. Visually inspect all connectors, knobs, and handles. Confirm that a power cord and an instrumentation manual (this manual), are with the instrument. -
Page 11: 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 be performed solely by qualified service personnel. - Page 12 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.
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Page 13: 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 14: 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 15: 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 16 event. This output may be used to trigger oscilloscopes or other equipment. 5) Delay Controls . When the PRF Range Switch is set to one of the four internal oscillator ranges, the main output is advanced or delayed relative to the TRIG output pulse (item 4).
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Page 17: Rear Panel Controls
REAR PANEL CONTROLS 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 18: General Information
GENERAL INFORMATION BASIC TEST ARRANGEMENT The AVR-A-1-S2-C should be tested with a sampling oscilloscope with a bandwidth of at least 2 GHz to properly observe the high-speed waveform. (The cables and attenuators must also have a bandwidth of at least 2 GHz.) A typical test arrangement... -
Page 19: Amplitude Dynamic Range
VARIABLE AMPLITUDE DYNAMIC RANGE Avtech high-speed pulse generators are optimized to operate near their maximum rated amplitude. Generally, operation below 20% of the maximum rated amplitude is not recommended. To generate pulses below this level, the pulse generator should be operated near its maximum rated amplitude, and one or more coaxial attenuators should be connected to the output. - Page 20 Avtech suggest the Midwest Microwave ATT-0527-XX-SMA-07 family of fixed 12 GHz, 20 Watt attenuators for use with the AVR-A-1-S2-C. For more information, please see the Avtech application note “How Can I Extend the Amplitude Range to Low Levels?” at http://www.avtechpulse.com/appnote/techbrief11/.
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Page 21: Minimizing Waveform Distortions
PREVENTING DAMAGE The AVR-A-1-S2-C may fail if triggered at a PRF greater than 10 kHz. This unit is designed to operate into a load impedance of 50 Ohms and the output stage will be damaged if it is operated into an open circuit (or any other high impedance). -
Page 22: 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 23: 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 24: Wiring Diagrams
Co n tact Avtech if the in stru men t req u ires servicing . Service is to b e p erfo rmed W AR NIN G solely b y q u al ified service p erso n n el. -
Page 25: Pcb 158M - Low Voltage Power Supply, 1/3
PCB 158M - LOW VOLTAGE POWER SUPPLY, 1/3 p cb 15 8M _ ov p p cb 15 8M _ ov p. sc h +15 V +15 V +15 V P-OUT # 1 P-OUT # 1 -1 5V -1 5V -1 5V 6 40 44 5-6 p cb 15 8M _ swi t ch i n g... -
Page 26: Pcb 158M - Low Voltage Power Supply, 2/3
PCB 158M - LOW VOLTAGE POWER SUPPLY, 2/3 8 30 83 5 FUSE HOL DE R 6 40 44 5-6 T P6 T P3 T E ST -L OOP T E ST -L OOP S1B , OR DC S2A, OR DC B U+ 4 34 -13 -1 00 M C 2 0... -
Page 27: Pcb 158M - Low Voltage Power Supply, 3/3
PCB 158M - LOW VOLTAGE POWER SUPPLY, 3/3 R 2 1 1 . 5K o r 1 . 8K OY C APB ANK R 2 6 1 5K C 2 3 1 00 0u F, 3 5 V (P5 1 69 -ND) L 6 27 11 HV W AR NING R1 7... -
Page 28: Pcb 168B - High-Voltage Power Supply
PCB 168B - HIGH-VOLTAGE POWER SUPPLY HV WA RN ING HV WA RN ING 1 N4 9 3 7 1 N4 9 3 7 6 4 04 4 5 -2 6 4 04 4 5 -2 1 N4 9 3 7 1 N4 9 3 7 1 0 0 OY R1 0... -
Page 29: Pcb 126C - Oscillator
PCB 126C - OSCILLATOR (OPTIONAL) U1 D M T A-81 0 6D-W W VC C SW 2 C 1 2 C 1 0 C 1 6 VC C VC C VC C 4 7u F, 3 5V 4 . 7K 0 . -
Page 30: Main Wiring
CHS G ND C ONN2 OUT (S M A) OUT (P AD) -1 5V + 15 V AVR-A-1-S2-C-P + 5V Printed Revision 19-Aug-2008 C L 4 Z:\m jc f il es \c i rc ui ts \ a vr-N \a vr-n.Dd b - A V R -A -1 -S2 -C -P \S 2-C -P V2 .SC H... -
Page 31: Performance Checksheet
PERFORMANCE CHECKSHEET...
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