Maintenance; Changing The Battery Pack; Replacing The Fuses; Cleaning - Chauvin Arnoux C.A 6250 Notice De Fonctionnement

5.1.

MAINTENANCE

5.1.1. Changing the battery pack

The battery should preferably be changed by Manumesure or by a repairer approved by Chauvin Arnoux.
However, the replacement procedure is as follows :
- disassemble the instrument :
- unscrew the nuts at the four corners of the metallic plate,
- remove the 6- and 5-contact connectors of the power supply board, and the wires of the pack.
The yellow wires have no polarity.
- lift the plate,
- unscrew the 2 screws of the battery pack,
- change the battery pack,
- to reassemble the instrument, perform the above operations in reverse order.
Important remarks:
I
- Changing the battery causes stored data to be lost.
- Avoid storing the instrument with the battery charge too low.
If the instrument is left unused for a long time (more than 2 months), the charging time will be longer.
Before using the instrument again, it is therefore best to carry out 3 complete charging/discharging
cycles.
5.1.2 Replacing fuses
The instrument is protected by two fuses :
- quick-blow fuse F1, 6.3 x 32 mm, 16 A/250 V, with a low internal resistance, protects the current
source against the application of an external voltage.
- quick-blow fuse F2, 5.0 x 20 mm, 2 A/250 V, protects the power supply board of the charger.
The replacement procedure is as follows :
- disassemble the instrument as indicated in § 5.1.1,
- remove the defective fuse,
- replace it with an identical fuse.
In all cases, if the problem persists, you must send the instrument back to Manumesure for
checking.

5.1.3 Cleaning

The instrument must be disconnected from any source of electricity.
Use a soft cloth slightly moistened with soapy water. Rinse with a damp cloth and dry rapidly with a dry
cloth or forced air. Do not use alcohol, solvents, or hydrocarbons.
5.2 MAINTENANCE
The primary function of the programming menu is reserved for maintenance use and is protected by a
5-digit password :
- set the rotary switch to SET-UP; SET is then displayed
- enter the programming mode by pressing the4key
- enter the pasword; the factory value is 09456.
5. MAINTENANCE
- unscrew the 4 screws on the bottom
- withdraw the instrument from the box
- turn the instrument over so that the battery pack is up
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