User`s Guide Insulation Tester Checker
Contents
1. EXTECH INSTRUMENTS User s Guide Insulation Tester Checker Model 380399 Introduction Congratulations on your purchase of the Extech 380399 Insulation Tester Checker This device offers 12 resistance simulation ranges from 1Q to 100MQ on the range dial and an additional fixed range on the binding posts 500MQ 1000V Careful use of this tester will provide years of reliable service Specifications Resistance ranges ohms 1 2 20 200 1k 10k 20k 100k 1M 2M 10M 100M 500M Voltage limits 1V to 1000V depending on resistance range Connection Three 3 binding posts Accuracy 1Q to 20 1 0 03Q 20Q to 10MQ 1 100MQ 1 5 500MO 3 EXTECH High Voltage Resistance Checker Dimensions 5 875 x 2 875 7 x 15cm Weight Approx 5 8 oz 164 4g Description see diagram at right 1 Range selector dial 2 Binding posts for fixed 500MQ 1000V range 3 Binding posts used for each of the 12 dial ranges Operation Binding Post Connections The binding posts can be used for connections in several ways 1 A banana plug can be inserted directly into the posts 2 Bare wire can be threaded through the post after the post has been unscrewed Once the bare wire is threaded tighten the posts as necessary 3 Alligator clips can be used but use caution not to strip the post threads or damage the ABS plastic post housing Connect to the center post and the right most post for the ranges available on the rotary switch Connect to2. n Contact Extech and go to Service Department to request an RA number A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Copyright 2002 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form Model 380399 Version 1 1 August 2002
3. the center post and left most post for the 500MQ 1000V fixed range Range Selection The 12 position rotary switch is used to select the desired resistance voltage range Each resistance range has an associated voltage rating printed directly on the tester faceplate The fixed 500MQ 1000V range is selected by connecting to the left most and center post as described earlier Testing This device can be used to verify the calibration integrity of insulation EXTECH ae oO testers megohmmeters multimeters and calibrators Connect as Insulation Tester Minn ene ee la Aa shown in the diagram at right then apply the signal from the device under test to the 380399 Ensure that the voltage supplied by the device s0oMo a E under test is not greater than the voltage range selected on the 380399 8 gt a The device under test should read the value of resistance selected on Qa the tester If it does not the device under test may need calibration adjustment or repair CAUTION Do not exceed maximum voltage Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limited warranty applies on sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website at www extech com click o
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