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DEI PVM-4210 manual

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Table of contents for the manual

  • Page 1

    DEI PVM-4210 DIRECTED ENERGY, INC. PVM-4210 ±950V Pulse Generator Module OPERATION MANUAL Directed Energy, Inc. 2401 Research Blvd., Ste. 108 Fort Collins, Colorado 80526 970/493-1901 FAX 970/493-1903[...]

  • Page 2

    DEI PVM-4210[...]

  • Page 3

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 1 Table Of Contents 1.0 Sa fety ...........................................................................................................3 2.0 Ov ervi ew .....................................................................................................3 3.0 S[...]

  • Page 4

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 2 ********** WARNING ********** SAFE OPERATING PROCEDURES AND PROPER USE OF THE EQUIPMENT ARE THE RESPONSIBILITY OF THE USER OF THIS SYSTEM. Directed Energy, Inc (DEI) provides information on its products and associated hazards, but it assumes no responsibility fo[...]

  • Page 5

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 3 1.0 Safety The high voltage/high current nature of this device dictates the use of caution when operating or servicing this equipment. OBSERVE ALL SAFETY PRECAUTIONS LISTED BELOW. FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY. Precautions: 1. The Pulser should[...]

  • Page 6

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 4 photomultiplier tubes. The exceptional pulse fidelity of the PVM-4210 will optimize the performance of any syst em in which it is used. The module provides two pulse output channels, controlled by a common control logic. When the control logi c receives a gate s[...]

  • Page 7

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 5 +5V +15V Gate I nv ersi on on/off Pulse Generat ion Ov er current i nhibi t Prim ary Drive Trans former +75V Pow er Supply +9 50V Po wer Supply Positive Pul l Up Positive Pul l Down Neg ativ e Pul l Down Ov ercurrent Sen se Output Current Sens e +/- Neg ativ e P[...]

  • Page 8

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 6 3.0 Specifications The pulser will meet or exceed the following specifications. All specifications are measured into a 50pF load connected to each of the two outputs with 12” (~30cm) of Belden 8218 (75 Ω) coaxial cable : OUTPUT PULSE ELECTRICA L CHARA CTERIS[...]

  • Page 9

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 7 continuous pulse recurrence frequencies greater than 20KHz. This formula is not applicable when driving non-capacitive (resist ive or inductive) loads. Contact DEI for information or assistance in using the PVM-4210 with different load characteristics or impedan[...]

  • Page 10

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 8 Output Pulse Configuration With Non-Inverted Gate Selected The ouput polarity can be reve rsed (so that the output is held at high voltage when the gate is low, and pulsed ground when the gate is high) by jumpering pins 10 and 11 together. This is shown in the f[...]

  • Page 11

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 9 Output Pulse Configuration With Inverted Gate Selected 4.2 Power Supply Enable For safety and flexibility, the PVM-4210 features a power supply enable input (DSUB connector pin 14). In order to enable the DC power supplies (and therefore generate an output pul s[...]

  • Page 12

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 10 5.0 OPERATING INSTRUCTIONS WARNING 1. Do not remove the input or output cabl es while the pulser is in operation. Never intentionally short-circuit the high voltage output of the pulser. Failure to observe these precautions can result in potential electric shoc[...]

  • Page 13

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 11 2. Connect the input DSUB connector, and connect the output to an appropriate load, prior to applying +24VDC power. 3. Monitor the voltage across the load, utilizing an appropriate high voltage probe or attenuator. 4. Apply +24VDC to +28VDC power to the module,[...]

  • Page 14

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 12 -Input trigger voltage too low. -Input trigger pulse width too short. Increase width. -Input trigger frequency too high. Reduce frequency. -No input high voltage. Check HV supplies. -Enable circuit not satisfied. Ensure that +5VDC is applied to DSUB pin 14. -No[...]

  • Page 15

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 13 At DEI's discretion, DEI may elect to repair or replace the equipment claimed to be defective or refund the original purchase price, plus taxes and transportation charges incurred by the purchaser. This Warranty shall not apply to any product that has been[...]

  • Page 16

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 14 APPENDIX Mechanical Dimensions And Mounting Hole/Connector Location Drawing[...]

  • Page 17

    DEI PVM-4210 Document Number 9100-0201 Rev 8  Directed Energy, Inc. 2000-2002 Page 15 11.50 5.80 TOP VIEW + HV ADJUST - HV ADJUST DB-15 PINOUT 2 GROUND 3 +5VDC @ 50mA OUTPUT 6 GATE (TTL into 50 Ohms) 7 +24VDC RETURN (GROUND) 9 JUMPER TO PIN 10 FOR NON-INVERTING 10 GATE / OUTPUT POLARITY SELECT 11 JUM PER TO PIN 10 FOR INVERTING 12 GATE RETURN (G[...]