Amptec Research 630ES Operation & Maintenance Manual
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Amptec Research 630ES Operation & Maintenance Manual

Safety igniter tester
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AMPTEC
RESEARCH
AMPTEC 630ES
SAFETY IGNITER TESTER
OPERATION/MAINTENANCE MANUAL
Revision D
PHONE (512) 858-4045;
FAX (512) 858-4340; TOLL FREE IN USA
800-350-5105
website http://www.amptec.com

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Summary of Contents for Amptec Research 630ES

  • Page 1 AMPTEC RESEARCH AMPTEC 630ES SAFETY IGNITER TESTER OPERATION/MAINTENANCE MANUAL Revision D PHONE (512) 858-4045; FAX (512) 858-4340; TOLL FREE IN USA 800-350-5105 website http://www.amptec.com...

  • Page 2: Table Of Contents

    _______________________________________________________________ SECTION A: UNPACKING AND INSPECTION Introduction to the AMPTEC 630ES Unpacking and Inspection Opening the 630ES Ohmmeter and Removal of the Lid AC Adaptor/ Battery Charger- Power Requirements Setup and Use SECTION B: 630ES Explosive Safety Igniter Tester SPECIFICATIONS Table B-2.
  • Page 3 Analog-to-Digital Converter Ohms-to-DC Converter Failsafe Design Ultra-Safe Power Supply Scheme E-7B Failsafe Current Limiting Circuit Figure E-1. Model 630ES Block Diagram Figure E-1B Analog-to-Digital Converter Timing Diagram Figure E-2 Analog Section of IC1 and IC2 Figure E-3. Constant Diagram (Simplified) Figure E-4.

  • Page 4: Section A: Unpacking And Inspection

    SECTION A: UNPACKING AND INSPECTION A-1. Introduction to the AMPTEC 630ES The AMPTEC Series 620A and now the 630 A standard feature of the 630ES is a battery Series Igniter Testers are becoming the monitoring circuit that alerts the user it is time to standard in the Explosive Safety Igniter recharge the batteries.
  • Page 5 A-3. Opening the 630ES Igniter Tester The 630ES has a way to remove it’s lid completely, for example when used in an and removal of the Lid indoor laboratory environment. With the When closed, the 630ES Explosive Safety 630ES open, remove the units two hinge Igniter Tester has two large O-rings that pins (hex type) by twisting them.

  • Page 6: Setup And Use

    “ON” position supplies internal battery isolated power to operate the 630ES when they are charged. If you turn on the 630ES, and the display does not come on, it may indicate the batteries need charging. The “OFF/CHARGING” power switch position is for use when the batteries need charging or the 630ES is not in use.

  • Page 7: Section B: 630Es Explosive Safety Igniter Tester Specifications

    Instrument Display . . (20,000 count) 4½ digit Super Bright Light Emitting Diodes (LED) Over-Range Indication ....( select next higher range) 630ES Display flashes Measurement Update Rate .

  • Page 8: Available Accessories And Options

    (up to ½" diameter) conductors. Option "630-300" is the The reliability of the 630ES battery pack is recommended Kelvin Clip four wire lead set for estimated to be ten fold better than individual the 630ES Series Igniter Testers.
  • Page 9 J1 maintained up to the point of the banana plug, connector. One charger is provided as a standard eliminating most cable resistance effects. accessory with every 630ES Igniter Tester . A= I High Replacement Batteries B= V High...
  • Page 10 Pistol Grip Probes/Test Leads Option "630-305" twin single banana jack lead set The AMPTEC 630ES Igniter Tester test leads are normally 48" long. The 630ES uses the water-resistant ITT Cannon Trident (Test Lead mate) connector on its front panel. Most all AMPTEC 630 series ohmmeter 4 Wire Kelvin test leads are compatible.

  • Page 11: Section D: Operation And Use

    Also note that a resistance range complete operating instructions for the must be selected after powering up the AMPTEC 630ES Explosive Safety Igniter 630ES in order to place it in an operational Tester/ Failsafe Ohmmeter. A description of mode. the front panel controls, connection...
  • Page 12 (i.e. linearity) of a given proof calibration sticker or seal. 630ES resistance range. The 0.1 ohm resistor can be used to check the 630ES’s 2. Purge Valve provides air pressure zero offset. The AMPTEC 630ES’s zero...
  • Page 13 5. Milliammeter for measuring test current coming from the AMPTEC 630ES 14. Input jack for connecting to the 630ES Ohmmeter. Plug one lead into the panel jack Ohmmeter common test lead (plug-in black labeled “meter” and the other into the banana jack).

  • Page 14: Fuseholder

    Figure D-1 (below) illustrates how the 4- pinout definitions). The connection is made wire principle is used to eliminate lead, wire on the 630ES front panel (see item 4 of the and contact resistances as potential error 630ES Front Panel Diagram shown earlier).

  • Page 15: Connections

    (see J1 manual instrument. section E-6) of the 630ES. Next turn the connector clockwise until you feel the A flashing display (on and off usally all notch or click of the mating connector of zeros) indicates an over-range condition the 630ES.

  • Page 16: Failsafe Operation

    Then when the 630ES leads, under test connection.) If the 630 series including the in-series harness wiring meter doesn’t agree with the test resistors in resistance, is connected to the test squib, the the Functional Test Section, then the meter squib test resistance can be calculated (via or it’s test leads are most likely broken.

  • Page 17: Battery Monitoring Circuitry

    Panel Diagram) is used as a Low Battery some test lead harnesses. Checking the indicator. 630ES “zero offset” should be one of the first items a user does if one encounters an If the low battery LED is illuminated, 630ES unusual or unexpected resistance level.

  • Page 18: General

    CHAPTER E GENERAL OPERATION AND DESIGN If the 630ES exhibits problems that cannot be E-1. General eliminated by reviewing Chapters B and D, the following guidelines have been established to The AMPTEC RESEARCH 630ES Igniter help solve the problem. Tester is shown in block diagram form in Figure E-1.
  • Page 19 When soldering, heat the PCB pad and the lead of the component, not the solder. After several seconds of the component lead in contact with the hot soldering iron apply solder smoothly and evenly onto the PCB pad and component lead not the soldering iron.

  • Page 20: Circuit Descriptions

    CURRENT SOURCE MULTIPLEXER INPUT INTEG BUFFER SWITCH COUNTERS CONTROL LOGIC COMPARATOR ZERO CROSSING DETECTOR MODEL 630ES OHMMETER BLOCK DIAGRAM COUNTS PHASE III PHASE I PHASE II I0.00 I I0.000 20.00 I 4 ½ DIGIT ZERO CROSSING POLARITY OCCURS DETECTED ZERO CROSSING...
  • Page 21 C INT R INT BUFFER BUFFER INTEGRATOR COMPARATOR 1 µF ZERO CROSSING DETECTOR C REF C AZ C STRAY V IN FIGURE E-2A. PHASE l AUTO-ZERO C INT R INT BUFFER BUFFER INTEGRATOR COMPARATOR 1 µF ZERO CROSSING DETECTOR C REF C AZ C STRAY V IN...

  • Page 22: Ohms-To-Dc Converter

    Detailed Description Analog Section E-4-1. Reference Voltage Figures E2 diagrams A thru D shows the The precision reference voltage required to do equivalent circuit of the analog section in 3 the A/D conversion is developed by IC201. The different phases of operation. The system will zener voltage is attenuated to approximately - perform conversions at a rate determined by the 0.5V .

  • Page 23: Failsafe Design

    E-5-2 Constant Current Circuit Operation igniter could not exceed safe limits, because the -5 volt and +5V supplies includes inherent Assume that terminals I and I of Figure E-3 are current limiting. Because of the design of both supply isolation transformers T101 and T102, shorted, and 1 volt is applied to E so that I is the ±5 volt supplies can only deliver 20 to 25 positive.

  • Page 24: A Ultra-Safe Power Supply Scheme

    IC7 for the digital voltmeter (DVM) chip set (IC1 and IC2). For the 630ES Tester the normal or typical operating current level is less than 5 mA, and The ±5 VA is developed by one DC to DC <10mA on most 20 ohm range versions as a...
  • Page 25 To equalize the 0.5 volt applied to E the inputs of IC202, IC201 must be driven to zero. For the 630ES the normal or typical operating current This condition occurs only when the voltage drops level is less than 5 mA, and <8mA on 2 Ohm and the across R212 and R222 are equal to the drops across 20 ohm range(s) as a Failsafe Level .
  • Page 26 Figure E-4. LED Display Pin Functions E-8. Relay Board General Operation E-8. Relay Board General Operation The internal 630ES PCB labeled “620-relay The internal 630ES PCB labeled “620-relay board” replaces the range switch S1 on the main board” replaces the range switch S1 on the main board.

  • Page 27: General

    PCB electronic component repair / replacement. The F-3-1. Zero Offset Adjustment (20 ohm and recommended calibration interval is 1 year. higher ranges) The AMPTEC 630ES Igniter Tester is a four wire Kelvin ohmmeter. The AMPTEC 630ES Igniter 1. Select the 20 ohm range. Connect the Kelvin leads to the 0.1 ohm standard resistor.

  • Page 28: Battery Replacement Instructions

    Standard Resistor. All ranges must be within the connecting the battery retaining box/cover. specifications outlined in Chapter B. There are no 5) Replace the 630ES igniter tester front panel top adjustments necessary for the 200 KOhm and 200 plate and re-tighten the calibration access screws, Kohm ranges.

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