Criterion AV-25V-GC1-03 Instruction Manual

Dielectric and continuity tester

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Model: AV-25V-GC1-03
Dielectric and
Continuity Tester
1.800.561.8187
Instruction
Manual
www.criterioninstr.com
www.
.com
information@itm.com

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Summary of Contents for Criterion AV-25V-GC1-03

  • Page 1 Instruction Manual Model: AV-25V-GC1-03 Dielectric and Continuity Tester www.criterioninstr.com 1.800.561.8187 information@itm.com www. .com...
  • Page 2: Table Of Contents

    Table of Contents Introduction ....................3 Product Quality ..................... 3 Safety ......................3-4 Features ......................5 Included ......................5 Specifications ....................6 Instrument Description ................7 Installation Instructions ................8 Operating Instructions ................9-14 Guidelines Before Testing Begins ............9-10 Initial Test ..................10-12 Test Procedure ................12-14 Maintenance and Calibration ...............14-16 Trip Current Calibration ..............
  • Page 3: Introduction

    Introduction Thank you for purchasing your AV-25V-GC1-03 Dielectric and Continuity Tester. This high-voltage power supply is designed especially for measuring dielectric strength or breakdown (often called the "HIPOT" test) as required by many CSA and UL specifications for both qualification and production testing. Please read the following instructions carefully before using your instrument.
  • Page 4 • Wear appropriate personal protective equipment (PPE), including insulated gloves and safety goggles, when operating the tester to protect against potential hazards. • Do not use this equipment in hazardous environments where flammable gases, vapors, or dust are present unless the equipment is specifically designed and certified for such use.
  • Page 5: Features

    Features • For dielectric strength testing of control panels, small transformers, small electrical motors, home-appliances, electronic-ballasts, switching power supplies and similar equipment • Cover more than 75% of the requirements for test voltages called up by CSA, HEPC and UL for breakdown testing •...
  • Page 6: Specifications

    Specifications Input: 120V/60Hz Output: Adjustable 0 to 2500V AC at 95mA Transformer: Rated 500VA Dwell Timer: High voltage dwell timer is adjustable 1 to 60 seconds Voltmeter: 0 to 2500V AC Accuracy: ±2% of full scale Continuity Test: Ground continuity test current is 4A, open circuit voltage is 8V AC and resistance limit is 2Ω...
  • Page 7: Instrument Description

    Instrument Description 1. VOLTAGE ADJUST Knob 10. Instrument Test Socket 2. LINE FAULT Indicator Light 11. Voltmeter 3. NO GROUND Indicator Light 12. High Voltage Warning Indicator Light 4. ON/OFF Switch 13. TIMER Adjustment Screw 5. POWER Indicator Light 14. Instrument Power Plug 6.
  • Page 8: Installation Instructions

    Installation Instructions The AV-25V-GC1-03 is supplied completely wired and ready for operation without special installation. Simply plug the line cord into any convenient 120V AC line outlet. NOTE: A 3-wire U-ground outlet is necessary to ensure proper grounding of the instrument cabinet. This instrument incorporates a special ground sensor.
  • Page 9: Operating Instructions

    Operating Instructions Guidelines Before Testing Begins The relatively high voltages used in dielectric-strength testing pose significant dangers to life, necessitating utmost care in conducting such tests. The following precautions are considered minimal and, if adhered to, should ensure a reasonable level of safety: •...
  • Page 10: Initial Test

    • When testing capacitors or cables, ensure complete discharge at the conclusion of the test. Momentary shorting of terminals may not suffice, as dielectric absorption can cause voltage to reappear shortly after removing the short. To mitigate this, maintain the short for an extended period, such as ten seconds, before confirming complete discharge.
  • Page 11 WARNING: Never plug the two special leads to a wall outlet or any other outlet. They are made to be plugged to the tester only. continued... 1.800.561.8187 information@itm.com www. .com...
  • Page 12: Test Procedure

    Test Procedure SPECIAL NOTE: The ground return is always a black-wire ground clip (green insulator). The following section applies to units with a high voltage clip 1. Ensure the POWER switch on the test set is turned OFF before beginning. 2.
  • Page 13 NOTE: If the unit under test only has a 2-wire line cord and plug or if it has no exposed metal parts, see "Typical Test Set-Ups'' for set up details. 7. Insert the AC line plug of the item under test into the corresponding socket on the front panel of the test set.
  • Page 14 14. To repeat a test on the same unit, restart from step (9) or (10). Otherwise, turn off the test set, which also extinguishes the HV indicator. Remove the plug from the test socket (ensuring the HV indicator is off first) and detach the ground clip from the tested item.
  • Page 15: Maintenance And Calibration

    CSA or UL certification standards. It is strongly recommended that your test set undergo a thorough check of its operation and calibration at least once a year by Criterion Instruments or an authorized Criterion Instruments Service Centre.
  • Page 16: Voltmeter Calibration

    Connect a traceable high-voltage voltmeter to the output leads and compare its reading with that of the internal voltmeter. Employing an electrostatic voltmeter is recommended for this comparison. WARNING: Never substitute any part or component with one that is not specified by Criterion Instruments. 1.800.561.8187 information@itm.com www.
  • Page 17: Fuse Replacement

    Fuse Replacement The fuse used should be a type MDL-3A (or MDX-3A) with a SLO-BLO characteristic. Ordinary fuses must not be used. Avoid over fusing. If the fuse blows repeatedly without apparent cause, promptly return the instrument for repair as it may be faulty. WARNING: Always disconnect equipment from electrical power before removing a fuse;...
  • Page 18: Appendix

    Appendix The following brief notes aim to describe some characteristics of dielectric strength testing to help the operator better understand its significance. Specific test voltages or currents are typically outlined in testing specifications established by organizations like CSA or UL. What is dielectric strength? Dielectric strength refers to the voltage rating at which electrical failure or breakdown occurs.
  • Page 19 What is the relationship between dielectric strength, insulation resistance, and leakage current? Insulation resistance is typically measured with DC at a voltage much lower than the breakdown voltage. Its value depends on material characteristics and surface conditions such as dirt or moisture. The measured insulation resistance may vary with voltage and time, but not rapidly.
  • Page 20: Product Warranty

    Product Warranty Criterion Instruments guarantees this system to be free of defects in material or workmanship for a period of two (2) years from date of shipment. During the warranty period, Criterion Instruments will repair or replace, at no charge, products or parts of a product that proves to be defective because of improper material or workmanship, under normal use and maintenance.
  • Page 21: Product Support

    Product Support If you have any questions on your product, please contact your authorized Criterion Instruments distributor or our Customer Service team by phone at 1-800-268-6886 or by email at info@criterioninstr.com. Please visit www.criterioninstr.com for the most up-to-date manuals and datasheets.
  • Page 22 CRITERION INSTRUMENTS Unparalleled precision and reliability in dielectric strength testing www.criterioninstr.com 1.800.561.8187 information@itm.com www. .com...

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