General Maintenance; Battery And Fuse Replacement - Forch F73 Bedienungsanleitung

5. MAINTENANCE
Do not attempt to repair or service your Meter unless you are qualified to do so and have
the relevant calibration, performance test, and service information.

5.1 General Maintenance

To avoid electrical shock or damage to the meter, do not get water inside the case.
Remove the test leads and any input signals before opening the case
Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or
solvents.
Dirt or moisture in the terminals can affect readings.
To clean the terminals:
Turn the meter off and remove all test leads.
Shake out any dirt that may be in the terminals.
Soak a new swab with a cleaning and oiling agent (such as WD-40).
Work the swab around in each terminal. The oiling agent insulates the terminals from
moisture-related contamination.

5.2 Battery and Fuse replacement

To avoid false readings, which could lead to possible electric shock or personal injury,
replace the battery as soon as the battery indicator (
Use only fuses with the amperage,interrutp,voltage And speed ratings specified
FF400 mA/1.000 V Min interrupt rating 10.000 A
FF10A/1.000 V Min interrupt rating 10.000 A
Before replacing the battery, disconnect test leads and/or any connectors from any
circuit under test, turn the meter off and remove test leads from the input terminals.
To replace the battery (see Figure 2.):
Turn the meter off.
Disconnect test leads and/or any connectors from the terminals.
Use a screwdriver to unscrew the two screws secured on the battery cover.
Take out the battery cover from the meter.
Remove the used batteries.
Replace with the new 9V batteries (6F22).
Rejoin the battery cover and secure by the two screws.
CAUTION
Using this appliance in an environment with a strong radiated radio-frequency
electromagnetic field (approx. 3V/m), may influence its measuring accuracy.
The measuring result can be strongly deviating from the actual value.
) appears.