Extech Instruments SL250W, Руководство пользователя

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Maintenance 6
CAUTION
Warning: Do not open the housing or microphone module. Service should only be per-
formed by factory personnel, there are no user-serviceable components in this device.
6.1 General Cleaning
Wipe the housing with a damp cloth as necessary to clean. Do not use abra-
sives or solvents to clean this device. Do not allow moisture to enter the mi-
crophone or the meter housing.
6.2 Battery Replacement
This device is powered by three (3) 1.5 V (AAA) batteries. When the low bat-
tery symbol
appears, replace the batteries immediately, as explained below.
1. Switch the meter off and remove the rear battery compartment cover.
2. Replace the batteries, observing correct polarity. Always use batteries of
the same type.
3. Secure the battery compartment before use.
Do not dispose of used batteries or rechargeable batteries in house-
hold waste.
#NAS100077; r. AA/78958/78963; en-US 8