Maintenance; Routine Maintenance; Replacing The Fuse - PCE Instruments CHAUVIN ARNOUX C.A 6421 Mode D'emploi

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Only use the specified spare parts. The manufacturer will not be held as

responsible for any accident resulting from a repair made outside its after-sales

service or accredited repair centers.

5.1.1. Cleaning

Use a damp cloth or a sponge slightly wetted with soapy water. Do not use alcohol, petrol

or any other hydrocarbon-based product.

5.1.2. Replacing the batteries or accumulators

Battery condition is automatically and permanently checked. When the indicator 6 is on,

battery time is nearly over and the batteries need to be changed rapidly. In order to

avoid any operating failure, take a pack of 8 batteries with the instrument when you are

about to perform field measurements.

Before replacing the batteries, make sure no lead is connected to the instrument.

Replace all batteries at the same time.

Do not mix the batteries and accumulators.

Unscrew the two captive screws located under the instrument and remove the battery trap-

door. Replace all 8 batteries by 8 new batteries of the same type, and observe the polarity.

Put back the battery trap-door.

The FAULT indicator blinks if the current circuit fuse is burnt out. This may be checked by

installing, between the S and E terminals, a resistance within the range 1 -1000 Ω , then by

shorting the E and H terminals (with the bar 4 open and the test leads disconnected). If the

FAULT indicator is still blinking, replace the fuse. Remove the battery trap-door, unscrew the

fuse holder, take out the fuse and replace it by a fuse of the same type (0.1 A - 250 V). Put

back the battery trap-door.

5.1.4. Storage

If the instrument has not been used for a long time, remove the batteries from their

compartment. Do not store the instrument in climatic conditions other than those specified

(see § 4: CHARACTERISTICS).

5. MAINTENANCE

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Table des Matières