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Summary of Contents for Avtech AV-151J-C
- Page 1 INSTRUCTIONS MODEL AV-151J-C 0 to ±400V AMPLITUDE HIGH-VOLTAGE FUNCTION GENERATOR VARIABLE-GAIN LINEAR AMPLIFIER SERIAL NUMBER: ____________...
- Page 2 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 BASIC PULSE CONTROL – INTERNAL MODE................11 BASIC PULSE CONTROL – EXTERNAL MODE................12 MECHANICAL INFORMATION....................13 TOP COVER REMOVAL........................13 RACK MOUNTING..........................13 OPERATIONAL CHECK......................14 MAINTENANCE..........................16 REGULAR MAINTENANCE......................16 CLEANING............................16 POWER SUPPLY AND FUSE REPLACEMENT..............17 PERFORMANCE CHECK SHEET....................19 Manual Reference: /fileserver1/officefiles/instructword/av-151-153/AV-151J-C,edition1.sxw. Copyright © 2003 Avtech Electrosystems Ltd, All Rights Reserved.
- Page 4 INTRODUCTION The Model AV-151J-C function generator can produce square, sine, and triangle wave outputs at frequencies up to 50 kHz, with amplitudes of 0 to ±400V. The AV-151J-C will drive load impedances of 10 k or higher. When supplied with an external voltage input, the AV-151J-C may be used as a DC to 50 kHz variable-gain linear amplifier.
- Page 5 SPECIFICATIONS Model: AV-151J-C Output amplitude 0 to 400 Volts Load resistance: 10 k Internal oscillator 5 Hz to 50 kHz frequency range: -3dB bandwidth 50 kHz (external mode): Waveforms: Sine, square, or triangle DC offset: 0 to 50V Square wave rise time 3.5 us...
- Page 6 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 7 In the 120V setting, a 1.0A slow blow fuse is required. In the 240V setting, a 0.5A slow blow fuse is required.
- Page 8 FRONT PANEL CONTROLS 1. POWER Switch . The POWER push button switch applies AC prime power to the primaries of the transformer, turning the instrument on. The push button lamp is connected to the +15V DC supply. 2. OVERLOAD Indicator . When the instrument is powered, this indicator is normally green, indicating normal operation.
- Page 9 TRIG BNC connector for the purpose of triggering a scope. This output can drive 50 Ohm loads, but the voltage will be reduced to ±0.5V. When the two-position switch is in the EXT position, the AV-151J-C may be used as a DC-50 kHz variable-gain voltage-to-current converter/amplifier. The gain is variable from +1 to +100.
- Page 10 REAR PANEL CONTROLS 1. AC POWER INPUT . A three-pronged recessed male connector is provided on the back panel for AC power connection to the instrument. Also contained in this assembly is a slow-blow fuse and a removable power selector card that can be removed and repositioned to switch between 110-120V AC in and 220-240V.
- Page 11 GENERAL INFORMATION BASIC PULSE CONTROL – INTERNAL MODE Operation in the internal mode is straightforward. The output may be set to be a triangle, sine, or square wave, as illustrated below: 0 to 400 Volts peak Sine 0 Volts Triangle Square A DC offset may also be added: 0 to 400 Volts peak,...
- Page 12 BASIC PULSE CONTROL – EXTERNAL MODE When the “INT/EXT” switch is in the “EXT” position, the AV-151J-C may be used as a DC - 50 kHz variable-gain linear amplifier. The gain is variable from +1 to +200, and is adjusted by rotating the amplitude control.
- Page 13 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 14 5) Set the INT/EXT switch to “INT”. 6) Set the waveform switch to the sine wave position. 7) Turn on the AV-151J-C. 8) Rotate the amplitude ten-turn dial to its maximum setting. 9) Observe the oscilloscope. You should see a 5 kHz, ±400V sine wave.
- Page 15 10)Observe the waveform as you switch between the sine, triangle, and square wave modes using the waveform switch. 11)Reduce the amplitude to ±100V, using the amplitude ten-turn dial. 12)This completes the operational check. If additional assistance is required: Tel: (613) 226-5772 Fax: (613) 226-2802 Email: info@avtechpulse.com...
- Page 16 MAINTENANCE REGULAR MAINTENANCE This instrument does not require any regular maintenance. On occasion, one or more of the rear-panel fuses may require replacement. All fuses can be accessed from the rear panel. CLEANING If desired, the interior of the instrument may be cleaned using compressed air to dislodge any accumulated dust.
- Page 17 POWER SUPPLY AND FUSE REPLACEMENT This instrument has three main fuses, plus two spares. One, which protects the AC input, is located in the rear-panel power entry module, as described in the “Rear Panel Controls” section of this manual. If the power appears to have failed, check the AC fuse first.
- Page 18 2) Locate the two “Power OK” LEDs on the power supply circuit board, as illustrated above. 3) Turn on the instrument. 4) Observe the “Power OK” LEDs. If the fuses are not blown, the two LEDs will be lit (bright red). If one of the LEDs is not lit, the fuse next to it has blown. 5) Turn off the instrument.
- Page 19 PERFORMANCE CHECK SHEET...
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