Maintenance - Extech Instruments 382356 User Manual

Maintenance

General Care
You should store your 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 any
harsh detergents or cleaners to clean your 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.
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.
Extech offers complete repair and calibration services for all of the products we sell. For
periodic calibration, NIST certification or repair of any Extech product, call customer service
for details on services available. Extech recommends that calibration be performed on an
annual basis to insure calibration integrity.
All rights reserved including the right of reproduction in whole or in part in any form.
CALIBRATION AND REPAIR SERVICES
Tech Support Hotlines
781-890-7440 ext. 200
extech@extech.com
Copyright © 2000 Extech Instruments Corporation.
www.extech.com
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382356 V2.0 5/03