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11. MAINTENANCE AND CLEANING
a) General Information
The analogue multimeter requires no servicing apart from replacing the battery/rechargeable
battery.
To warrant meter accuracy for an extended period, it is recommended to have the device
calibrated once per year.
b) Cleaning
The connected lines of the meter must be disconnected from the meter and all objects to be
measured before the produced is cleaned. For this, switch the meter off first.
Do not use any aggressive cleaning agents such as petroleum, alcohol or similar for cleaning.
This may damage the meter's surface. Also do not use any sharp-edged objects such as
screwdrivers or medal brushes for cleaning.
Always clean the meter and the measuring lines with a clean, lint-free, antistatic and slightly
moist cloth.
c) Replacing the Fuses
The currency measurement areas are protected against overload by ceramic high-performance
fuses. If measuring in this range is no longer possible, you have to change the fuse.
• Open the battery compartment as describe din chapter "7".
• Remove the batteries/rechargeable batteries in the meter
• Loosen the retention tab in the upper part of the battery compartment with a small screwdri-
ver and carefully remove the rear housing
• Remove the defective fuse and replace it with one of equal build. (See technical data)
• Close the housing incl. battery compartment lid again carefully
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