Related Manuals for BNC DEI SCIENTIFIC PVX-4141 B
Summary of Contents for BNC DEI SCIENTIFIC PVX-4141 B
- Page 1 PVX-4141/4140 B ±3500 V Pulse Generator Operating Manual Berkeley Nucleonics Corp. 2955 Kerner Blvd. Suite D San Rafael, California 94901 800-234-7858 info@berkeleynucleonics.com berkeleynucleonics.com...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1.0 GENERAL DESCRIPTION ................4 2.0 SPECIFICATIONS ..................4 3.0 SAFETY ......................4 3.1 Power Source ................5 3.2 Grounding ................. 5 3.3 General Operating Precautions ..........5 4.0 OPERATING CONSIDERATIONS ..............5 4.1 Output Cabling ..................5 4.2 Load Simulation ................... -
Page 3: General Description
1.0 GENERAL DESCRIPTION The DEI PVX-4140 B is a solid-state high-voltage pulser designed to drive capacitive loads such as grids and deflection, reflection and acceleration plates. The instrument features an output voltage swing of up to 3500 V, peak current of up to 25 A, and continuous current of up to 0.1 A. -
Page 4: Power Source
• Pulsed power systems are capable of random triggering via transients. Whenever the PVX-4140 B is turned on, or voltage is present in the chassis, assume a pulse can appear on the output connector. Directed Energy, Inc. (DEI) provides information on its products and associated hazards, but it assumes no responsibility for the after-sale operation and safety practices. -
Page 5: Load Simulation
4.2 Load Simulation The PVX-4140 B was tested with a 50 pF capacitive load connected to the output via 6 feet of RG-59 coaxial cable. 4.3 Gate Input A logic level of +5 V ±1 V into 50 Ω with a rise time of <20 ns is required to gate the PVX-4140 B. -
Page 6: Controls And Indicators
Input Gate: +5 V Ground Output Pulse: high Generating a Negative Pulse with the PVX-4140 B 4.6 Controls and Indicators 4.6.1 Power Switch and LED The power switch on the rear panel controls all AC power in the instrument. The Power LED on the front panel illuminates when AC power is turned on. -
Page 7: Control Error Led
To permit burst mode operation, the Control Error LED is not used in this instrument model. 4.6.7 Current Monitor The Current Monitor BNC connector provides a 10 A per V scaled version of the output current for display on an oscilloscope. The scope input impedance should be 50 Ω. - Page 8 8 of 16...
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Page 9: Remote Control
4.7 Remote Control The PVX-4140 B can be operated via remote control. The following table provides the pinout of the Remote Interface connector (DA-15 socket) on the rear panel. FUNCTION DESCRIPTION Ground Ground Ground Ground Ground Output: Active low, open drain, 24 mA Enable Status maximum ON, 24 V DC maximum OFF Output: Active low, open drain, 24 mA... - Page 10 The inputs on the Remote Interface connector are internally pulled high. For remote operation, pull the Remote pin low. This disables the front panel Enable button and prevents local operation. NOTE: The Enable, Interlock, Invert, and Auto Reset inputs are always active, regardless of the state of the Remote input.
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Page 11: Preparation For Use
5.0 PREPARATION FOR USE 5.1 General After unpacking, perform an initial inspection and preliminary electrical check to ensure the instrument is in good working order. Notify the carrier immediately if damage is found. Direct any repair problems to the service department listed at the end of this document. - Page 12 3. Before connecting the pulse generator to the PVX-4140 B, set up the pulse generator output to deliver a +5 V ±1 V pulse into 50 Ω. Use a repetition rate of approximately 500 Hz and a pulse width of 1 µs. 4.
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Page 13: Operating Instructions
6.0 OPERATING INSTRUCTIONS This section provides basic operating instructions for the PVX-4140 B. Additional application information may be found in Section 7.0. WARNING 1. There are NO user serviceable items inside this instrument. The cover should NEVER be removed. 2. Do not remove the input or output cables while the instrument is in operation. Never short-circuit the output of the instrument. -
Page 14: Troubleshooting
7.0 TROUBLESHOOTING 7.1 Troubleshooting Procedures Before attempting to service or troubleshoot the PVX-4140 B, review the safety summary above. The below information summarizes potential problems and their solutions. If these recommendations do not resolve the problem, DEI customer service can be contacted for further assistance. -
Page 15: Warranty
output pulse current has exceeded either one of the two internal current limits, one for positive pulses and one for negative pulses. If allowed to operate into a short for an extended period of time, damage to the instrument, load, and/or associated cabling may result. -
Page 16: Factory Service
10 Factory Service If the procedures above fail to resolve an operational problem, please contact the factory for further assistance: Berkeley Nucleonics, Corp. 2955 Kerner Blvd. Suite D San Rafael, CA 94901 800-234-7858 info@berkeleynucleonics.com berkeleynucleonics.com 16 of 16...
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