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Avtech AVO-6HF-B Instructions Manual

Laser diode driver
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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 +1-613-686-6675 (Intl)
FAX: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl)
info@avtechpulse.com
INSTRUCTIONS
MODEL AVO-6HF-B
250 VOLT / 5 AMP
LASER DIODE DRIVER
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
-
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 3H5

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Summary of Contents for Avtech AVO-6HF-B

  • Page 1 BOX 5120, LCD MERIVALE OGDENSBURG, NY FAX: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl) OTTAWA, ONTARIO U.S.A. 13669-0265 CANADA K2C 3H5 info@avtechpulse.com http://www.avtechpulse.com/ INSTRUCTIONS MODEL AVO-6HF-B 250 VOLT / 5 AMP LASER DIODE DRIVER WITH IEEE 488.2 AND RS-232 CONTROL SERIAL NUMBER: ____________...

  • 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 HIGH-VOLTAGE PRECAUTIONS..................6 SPECIFICATIONS......................7 REGULATORY NOTES....................8 FCC PART 18.......................... 8 EC DECLARATION OF CONFORMITY..................8 DIRECTIVE 2011/65/EU (RoHS).....................9 DIRECTIVE 2002/96/EC (WEEE)....................9 FIRMWARE LICENSING.......................10 INSTALLATION......................11 VISUAL CHECK........................11 POWER RATINGS........................ 11 CONNECTION TO THE POWER SUPPLY................11 PROTECTION FROM ELECTRIC SHOCK................12 ENVIRONMENTAL CONDITIONS..................13 LABVIEW DRIVERS......................
  • Page 4 PCB 104F - KEYPAD / DISPLAY BOARD, 3/3..............44 MAIN WIRING, POSITIVE-POLARITY (-P) UNITS...............45 MAIN WIRING, NEGATIVE-POLARITY (-N) UNITS.............46 MAIN WIRING, DUAL-POLARITY (-PN) UNITS..............47 PERFORMANCE CHECK SHEET.................48 Manual Reference: /fileserver2/officefiles/instructword/avo-6/AVO-6HF-B,ed7.odt. Last modified June 26, 2018. Copyright © 2018 Avtech Electrosystems Ltd, All Rights Reserved.

  • Page 5: Introduction

    The resistance must be capable of dissipating up to 50 Watts of average power, if the AVO-6HF-B is to be used over its full range of capabilities.

  • 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

    Indicate desired polarity by suffixing model number with -P or -N (i.e. positive or negative) or -PN for dual polarity. For DC offset option suffix model number with -OS. Not available for the models AVO-6HF-B, AVO-6HZ-B, or AVO-6C1-B (50 us models).

  • Page 8: Regulatory Notes

    If interference is observed, check that appropriate well-shielded cabling is used on the output connectors. Contact Avtech (info@avtechpulse.com) for advice if you are unsure of the most appropriate cabling. Also, check that your load is adequately shielded. It may be necessary to enclose the load in a metal enclosure.

  • Page 9: Directive 2011/65/Eu (Rohs)

    < 100 ppm (0.01% by mass) 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 WEEE compliance (as mandated in Directive 2002/96/EC of the European Union and local laws) on behalf of the customer, as provided for under Article 9 of Directive 2002/96/EC.

  • Page 10: Firmware Licensing

    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.

  • Page 11: Installation

    INSTALLATION VISUAL CHECK After unpacking the instrument, examine to ensure that it has not been damaged in shipment. Visually inspect all connectors, knobs, liquid crystal displays (LCDs), and the handles. Confirm that a power cord, a GPIB cable, and two instrumentation manuals (this manual and the “Programming Manual for -B Instruments”) are with the instrument.

  • Page 12: 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...

  • Page 13: Environmental Conditions

    6. no pollution or only dry, non-conductive pollution. LABVIEW DRIVERS A LabVIEW driver for this instrument is available for download on the Avtech web site, at http://www.avtechpulse.com/labview. A copy is also available in National Instruments' Instrument Driver Library at http://www.natinst.com/.

  • Page 14: 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 15: 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: Nominal Recommended Replacement Part Fuses...

  • Page 16: Front Panel Controls

    FRONT PANEL CONTROLS 1. POWER Switch . This is the main power switch. When turning the instrument on, there is normally a delay of 10 seconds before anything is shown on the main display, as the internal operating system boots up. If the main menu does not appear after 30 seconds, turn off the instrument and leave it off for at least 60 seconds before applying power again.
  • Page 17 5. KEYPAD . Control Name Function MOVE This moves the arrow pointer on the display. CHANGE This is used to enter the submenu, or to select the operating mode, pointed to by the arrow pointer. ×10 If one of the adjustable numeric parameters is displayed, this increases the setting by a factor of ten.

  • Page 18: Rear Panel Controls

    REAR PANEL CONTROLS CONTROL GATE TRIG RS-232 GPIB 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 19 independently. 6. GPIB Connector . A standard GPIB cable can be attached to this connector to allow the instrument to be computer-controlled. See the “Programming Manual for -B Instruments” for more details on GPIB control. 7. RS-232 Connector. A standard serial cable with a 25-pin male connector can be attached to this connector to allow the instrument to be computer-controlled.

  • Page 20: General Information

    GENERAL INFORMATION AMPLITUDE CONTROL The AVO-6HF-B consists of two parts, the mainframe and the output module. The mainframe is a voltage pulser, which generates up to 250V (V The fan-cooled output module contains a 50Ω series resistance (capable of dissipating up to 50 Watts of average power), and packaged diodes may be soldered to the output terminals of this module.

  • Page 21: Sma Option

    Care must be taken to ensure that the resistor do not overheat. The resistance must be capable of dissipating up to 50 Watts of average power, if the AVO-6HF-B is to be used over its full range of capabilities.

  • Page 22: Basic Test Arrangement - With Output Module

    REAL-TIME AVTECH PULSER OSCILLOSCOPE SCOPE PROBE MAIN OUTPUT CHANNEL A CONNECTOR TEST LOAD POWER TRIG SYNC INPUT OUTPUT ALL CABLES: 50 OHM COAXIAL The load resistor must have a voltage rating of at least 250V, and a power rating of at least 50 Watts.

  • Page 23: Basic Pulse Control

    OUTPUT coaxial cable If the AVO-6HF-B is operated at its maximum duty cycle, the worst-case power dissipation in the output module is (250V × 5A × 4%) = 50 Watts. The internal fan must have sufficient external ventilation to cool the module. The DB-9 control cable must be connected as shown above for the fan to operate.
  • Page 24 100 ns, FIXED SYNC OUT (generated by the 3V, FIXED internal oscillator) DELAY > 0 PULSE WIDTH AMPLITUDE, VARIABLE MAIN OUTPUT If the delay is negative, the order of the SYNC and OUT pulses is reversed: 100 ns, FIXED SYNC OUT (generated by the 3V, FIXED internal oscillator)

  • Page 25: Trigger Modes

    As before, if the delay is negative, the order of the SYNC and OUT pulses is reversed. The delay, pulse width, and frequency (when in the internal mode), of the OUT pulse can be varied with front panel controls or via the GPIB or RS-232 computer interfaces. TRIGGER MODES This instrument has four trigger modes: ...

  • Page 26: Operational Check

    2.Turn on the AVO-6HF-B. The main menu will appear on the LCD. 3.To set the AVO-6HF-B to trigger from the internal clock at a PRF of 1 kHz: a)The arrow pointer should be pointing at the frequency menu item. If it is not, press the MOVE button until it is.
  • Page 27 4.To set the delay to 1 us: a)Press the MOVE button until the arrow pointer is pointing at the delay menu item. b)Press the CHANGE button. The delay submenu will appear. Rotate the ADJUST knob until the delay is set at 1 us. c)The arrow pointer should be pointing at the “Normal”...
  • Page 28 2.Turn on the AVO-6HF-B. The main menu will appear on the LCD. 3.To set the AVO-6HF-B to trigger from the internal clock at a PRF of 1 kHz: a)The arrow pointer should be pointing at the frequency menu item. If it is not, press the MOVE button until it is.
  • Page 29 c)The arrow pointer should be pointing at the “Normal” choice. If it is not, press MOVE until it is. d)Press CHANGE to return to the main menu. 5.To set the pulse width to 1 us: a)Press the MOVE button until the arrow pointer is pointing at the pulse width menu item.

  • Page 30: Programming Your Pulse Generator

    PROGRAMMING YOUR PULSE GENERATOR KEY PROGRAMMING COMMANDS The “Programming Manual for -B Instruments” describes in detail how to connect the pulse generator to your computer, and the programming commands themselves. A large number of commands are available; however, normally you will only need a few of these.

  • Page 31: All Programming Commands

    ALL PROGRAMMING COMMANDS For more advanced programmers, a complete list of the available commands is given below. These commands are described in detail in the “Programming Manual for -B Instruments”. (Note: this manual also includes some commands that are not implemented in this instrument.
  • Page 32 :SOURce INTernal | EXTernal | MANual | HOLD | IMMediate *CLS [no query form] *ESE <numeric value> *ESR? [query only] *IDN? [query only] *OPC *SAV 0 | 1 | 2 | 3 [no query form] *RCL 0 | 1 | 2 | 3 [no query form] *RST [no query form]...

  • Page 33: Mechanical Information

    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 34: 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 35: Wiring Diagrams

    WIRING DIAGRAMS WIRING OF AC POWER M ains circuits - haz ardou s live . Do not attempt any repairs on this instrument beyond the fuse replacement procedures described in the manual. Contact Av tech if the instr ument A3 - BLACK requires serv icing.

  • Page 36: Wiring Of Dc Power

    WIRING OF DC POWER M OUNT WIT H 1/2" ST ANDOFFS P1, N1 = 338-2431-ND, 22000uF, 25V x 2 R1,R2 (ON BOT T OM ): 1.8K OY CHS GND B1 - RED (T O ECP) PCB 1 79B, TRIMMED +2 4V, NO OLO +2 4V, NO OLO +2 4, NO OLO +5 V NSY...

  • Page 37: Pcb 158R4 - Low Voltage Power Supply

    PCB 158R4 - LOW VOLTAGE POWER SUPPLY...

  • Page 38: Pcb 156D - Polarity Control Pcb (-Pn Units)

    PCB 156D - POLARITY CONTROL PCB (-PN UNITS) R2 8 R2 3 "UV- ON" IS HIGH IF: 1) "UV+ HIGH" IS LOW, AND +1 5 V VC C VC C 2) "POL" IS LOW. R1 9 0 . 1 u F R1 2 R1 6 5 6 K...

  • Page 39: Pcb 197G - High Voltage Discharge Board

    PCB 197G - HIGH VOLTAGE DISCHARGE BOARD...

  • Page 40: Pcb 183A-S And 183A-P Capacitor Banks

    PCB 183A-S AND 183A-P CAPACITOR BANKS 183A-S (SERIES CAPACITOR BANK) 7 2 00 K -ND, Mfg . 7 2 0 0, 4 -4 0 th read stan do ff 3 /8" HV + GN D 7 2 00 K -ND, Mfg . 7 2 0 0, 4 -4 0 th read stan do ff 3 /8" X1 1 7 2 00 K -ND, Mfg .

  • Page 41: Pcb 94G - Alarm Board

    PCB 94G - ALARM BOARD RN 3 B RN 3 A +1 5 V U3 C 2 . 2 K 2 . 2 K 1 N 4 1 4 8 +1 5 V VC C VC C VC C +1 5 V U3 B U3 A LM 3 3 9 A...

  • Page 42: Pcb 104F - Keypad / Display Board, 1/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 1/3 Amp 5 4 9 99 1 0-1 , 1 0 p i n s traig h t h ead er LC D-BU TT LC D-BU TT. SCH SD A SD A SC L SC L GN D GN D...

  • Page 43: Pcb 104F - Keypad / Display Board, 2/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 2/3 U4 A VC C C1 0 VC C BU T1 VC C 2 . 2 u F C1 5 C1 3 0 . 1 u F 0 . 1 u F 0 . 1 u F 0 .

  • Page 44: Pcb 104F - Keypad / Display Board, 3/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 3/3 VC C VC C 0 . 1 u F 2 . 2 u F GN D VC C VC C VC C SD A SD A SC L SC L GN D PA D3 PA D4 PC F8 5 7 4 AN (MU ST HA VE "...

  • Page 45: Main Wiring, Positive-Polarity (-P) Units

    R8 = 10 OY R2 = ZERO R24, R25 = 220 OY R1 = NOT USED R26, R27 = UNUSED ALARM BOARD 94F -15V AVO -6HF-B-P, -M O PTIO NAL +24V, NO OLO Printed Revision 6-Feb-2018 Z:\mjcfiles\circuits\AVO\avo.Ddb - AVO-6HF-B-P\6hf-p wiring V2.sch...

  • Page 46: Main Wiring, Negative-Polarity (-N) Units

    R1 = NOT US ED R2 6, R2 7 = 220 OY AL AR M BO AR D 9 4 F +2 4 V NO O LO AVO-6HF-B-N Pri nte d Re vis i on 22-Mar-2016 Z:\mjcfiles\circuits\AVO\avo.Ddb - AVO-6HF-B-N\6hf-n wiring V2.sch...

  • Page 47: Main Wiring, Dual-Polarity (-Pn) Units

    MAIN WIRING, DUAL-POLARITY (-PN) UNITS C O N N 7 F E E D -T H R U B O T H S I D E S O F P C B 1 5 8 C O N N E C T O R (I .E . , S E P A R A T E P A T H S F R O M P C B 1 5 8 F O R E A C H U V ) . U S E 1 /2 "...

  • Page 48: Performance Check Sheet

    PERFORMANCE CHECK SHEET...

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