382357 Datasheet, PDF (12/12 Pages) Extech Instruments Corporation. – Ground Resistance Clamp-On Tester

Maintenance
General Care
Store the ground resistance tester and reference loop in its case when not in use. A
damp cloth may be used to clean any surface dirt from the meter. Never use harsh
detergents, abrasives, solvents, or cleaners on the meter.
Battery Replacement
When the low battery symbol appears on the display, replace the meter’s 9V battery.
Use a high quality alkaline battery whenever replacement becomes necessary.
1. Remove the two rear screws and open the meter housing.
2. Replace the battery, close the meter housing, and affix the two rear screws.
Clamp Jaw Maintenance
The jaws may be brushed clean with a toothbrush or similar soft-bristled brush. Care
must be taken to ensure that the contact fins are not bent or deformed, as this will affect
the operation of the meter.
Calibration and Repair Services
Extech offers repair and calibration services for the products we sell. Extech also provides
NIST certification for most products. Call the Customer Service Department for information on
calibration services available for this product. Extech recommends that annual calibrations be
performed to verify meter performance and accuracy.

Support line [phone]
Technical support: Extension 200; E-mail: [e-mail]
Repair & Returns: Extension 210; E-mail: [e-mail]
Product specifications subject to change without notice
For the latest version of this User Guide, Software updates, and other
up-to-the-minute product information, visit our website: www.extech.com
Extech Instruments Corporation, 285 Bear Hill Road, Waltham, MA 02451
Copyright © 2009 Extech Instruments Corporation (a FLIR company)
All rights reserved including the right of reproduction in whole or in part in any form
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382357 V1.1 03/09