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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)
BOX 5120, LCD MERIVALE
http://www.avtechpulse.com/
or +1-613-686-6675 (Worldwide)
OTTAWA, CANADA K2C3H5
INSTRUCTIONS
MODEL AV-112D-PS
0 to +50 V, 20 kHz
VARIABLE-GAIN
LINEAR AMPLIFIER
SERIAL NUMBER:
14135
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Summary of Contents for AVTECH ELECTROSYSTEMS AV-112D-PS
- Page 1 S I N C E 1 9 7 5 info@avtechpulse.com Tel: 888-670-8729 (USA & Canada) BOX 5120, LCD MERIVALE http://www.avtechpulse.com/ or +1-613-686-6675 (Worldwide) OTTAWA, CANADA K2C3H5 INSTRUCTIONS MODEL AV-112D-PS 0 to +50 V, 20 kHz VARIABLE-GAIN LINEAR AMPLIFIER SERIAL NUMBER: 14135...
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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 SPECIFICATIONS......................6 REGULATORY NOTES....................7 FCC PART 18.......................... 7 EC DECLARATION OF CONFORMITY..................7 DIRECTIVE 2011/65/EU (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..................12 FUSES..........................13 AC FUSE REPLACEMENT....................13... - Page 4 PCB 288B - POWER DISSIPATION LIMITER..............28 PCB 240A - OUTPUT RELAY....................29 PCB 183A-S AND 183A-P CAPACITOR BANKS..............30 MAIN WIRING........................31 PERFORMANCE CHECK SHEET..................32 Manual Reference: /fileserver2/officefiles/instructword/av-112/AV-112D-PS,ed2.odt. Last modified June 15, 2021. Copyright © 2021 Avtech Electrosystems Ltd, All Rights Reserved.
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Page 5: Introduction
0 to +2V, and has a variable gain of 0 to +25. The maximum output voltage is +50V. The AV-112D-PS will drive load impedances of 10 Ω or higher. The maximum peak output current is 5 Amps (that is, 50 V / 10 Ω = 5 A). The maximum average current is 2.5 Amps (measured over a 10 ms interval). -
Page 6: Specifications
SPECIFICATIONS Model: AV-112D-PS Output amplitude: 0 to +50 Volts Maximum peak current: 5 Amps Maximum average current 2.5 Amps Output polarity: Positive only Load impedance: ≥ 10 Ω Output resistance ≈ 0 Ω Bandwidth (f 20 kHz -3dB Rise time (20%-80%, for... -
Page 7: 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 8: 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 9 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. Requirements for WEEE compliance may include registration of products with local governments, reporting of recycling activities to local governments, and financing of recycling activities.
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Page 10: Installation
INSTALLATION VISUAL CHECK After unpacking the instrument, examine to ensure that it has not been damaged in shipment. Visually inspect all connectors, knobs, and handles. Confirm that a power cord is with the instrument. If the instrument has been damaged, file a claim immediately with the company that transported the instrument. -
Page 11: 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 12: 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 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: 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 17: General Information
GENERAL INFORMATION BASIC CONTROL The AV-112D-PS is a DC-20 kHz variable-gain linear amplifier. The gain is variable from 0 to +25, and is adjusted by rotating the “GAIN” control. The required voltage input signal is applied at the “IN” connector. - Page 18 The output is thermally protected, and the average output power is monitored and limited. However, sudden short circuit conditions in the load may damage the output circuitry. Take care to avoid short circuit conditions! The input is protected against excessive voltages.
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Page 19: Operational Check
2) Set the signal generator to produce a +2V, 1 kHz waveform with a duty cycle of less than 50%. (The input impedance of the AV-112D-PS is 1 kΩ). Connect a cable from the SYNC connector of the signal generator to the TRIG input of an oscilloscope. - Page 20 5) Set the gain control to minimum (0.0). Turn on the amplifier and the signal generator. 6) Channel A should show a +2V, 1 kHz waveform from the signal generator. Rotate the gain control to its maximum setting. The Channel B waveform should increase to +50V, and have a shape similar to that of the Channel A waveform.
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Page 21: 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 22: 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 23: Wiring Diagrams
WIRING DIAGRAMS WIRING OF AC POWER M a ins circuits - ha z ard ou s live . A3 - BLACK Do not attem pt any repairs on this instrument POWER SWITCH SW325-ND (CW INDUSTRIES G RS-4022-0013) bey ond the fuse replacement procedures described in the m anual. -
Page 24: High Voltage Power Supply
HIGH VOLTAGE POWER SUPPLY 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 FDC60-24S15 WITH PCB161C FDC60-24S15 WITH PCB161C PCB 179B, TRIM MED (20 AWG) (20 AWG) CHA NGES ON PCB 158R5... -
Page 25: Pcb 158R5 - Low Voltage Power Supply
PCB 158R5 - LOW VOLTAGE POWER SUPPLY... -
Page 26: Pcb 161C - Dc/Dc Converters
PCB 161C - DC/DC CONVERTERS U S A G E C H A R T F O R 1 0 1 X , F O R 1 5 5 C , M I S C , F L O A T I N G + 2 4 V T O G E N E R A T E - 1 5 V T O G E N E R A T E - 2 4 V A S T R O D Y N E F D C 6 0 - 2 4 D 1 2 D C - D C... -
Page 27: Pcb 94H - Alarm Board
PCB 94H - ALARM BOARD... -
Page 28: Pcb 288B - Power Dissipation Limiter
PCB 288B - POWER DISSIPATION LIMITER... -
Page 29: Pcb 240A - Output Relay
PCB 240A - OUTPUT RELAY... -
Page 30: 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 31: Main Wiring
MAIN WIRING CHA NGES ON PCB 288B: SHOULD TRIP FOR INSTA NTA NEOUS PDISS OF 150W. 1. INSTA LL R1, R3 = 51K 2. INSTA LL R7 = 1K (TWEA K A S REQUIRED W ITH 1 OHM TEST LOA D) 1K THERMISTOR ON PA04 CU HS CONN1 PCB288B, PDISS LIM... -
Page 32: Performance Check Sheet
PERFORMANCE CHECK SHEET...
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