General Maintenance; Testing The Fuses - Fluke 12E User Manual

General Maintenance

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
1. Turn the Meter OFF and remove the test leads.
2. Shake out any dirt that may be in the terminals.
3. Soak a new swab with isopropyl alcohol and work
around the inside of each input terminal.
4. Use a new swab to apply a light coat of fine machine
oil to the inside of each terminal.

Testing the Fuses

 Warning
To avoid electric shock or injury, remove the
test leads and any input signals before
replacing the fuses.
1. Turn the rotary switch to
2. Plug a test lead into the
probe to the A or mA  terminal.
• A good A terminal fuse is indicated by a reading
between 000.0 Ω and 000.1 Ω. A good mA 
terminal fuse is indicated by a reading between 0.990
kΩ and 1.010 kΩ.
•
If the display reads , replace the fuse and test
again.
•
If the display shows any other value, have the Meter
serviced. See "Service and Parts" later in this manual.
Multimeter
Maintenance

.

terminal and touch the
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