Related Manuals for Criterion AV/DV-25VA-95/10-SD-01
Summary of Contents for Criterion AV/DV-25VA-95/10-SD-01
- Page 1 Instruction Manual Model: AV/DV-25VA-95/10-SD-01 Criterion Dielectric Strength Tester www.criterioninstr.com...
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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 ................9-12 Guidelines Before Testing Begins ............9-10 Initial Test .................... 10 Test Procedure ................11-12 Maintenance and Calibration ...............13-14 Trip Current/Milliammeter Calibration ..........13-14... -
Page 3: Introduction
Introduction Thank you for purchasing your AV/DV-25VA-95/10-SD-01 Dielectric Strength 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.
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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 Single-Phase Output: Adjustable 0 to 2500V AC/DC at 95mA & 10mA DC Transformer: Rated 500VA Short Duty Cycle Voltmeter: 0 to 2500V AC/DC Accuracy: +/-2% of full scale Trip Current: Fixed at 95mA AC & 10mA DC +/-5% Indicators: 4 Lights (Power-on, high-voltage-on, fault and line-fault) -
Page 7: Instrument Description
Instrument Description 8. FAULT Indicator Light 1. Ammeter 9. RESET Button 2. Voltmeter 10. High Voltage Warning 3. 3A SLO-BLO Fuse Port Indicator Light 4. ON/OFF Switch 11. Alligator Clips 5. POWER Indicator Light 12. Instrument Power Plug 6. LINE FAULT Indicator Light 7. -
Page 8: Installation Instructions
Installation Instructions The AV/DV-25VA-95/10-SD-01 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: 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 12 10. If the leakage exceeds the set value of the trip current, the high voltage will immediately turn OFF, and the FAULT lamp will illuminate. Otherwise, the item being tested is deemed "good". 11. Return to step 8 to repeat a test on the same unit. Ensure to start from zero voltage.
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Page 13: 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 14: 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... -
Page 15: Fuse Replacement
Fuse Replacement The fuse used should be a type MDL-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 16: 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 17 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.
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Page 18: 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 19: 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.
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