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Digital Multimeters
Maintenance
15
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 Product 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.
Test Fuses
Warning
To prevent 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
terminal and touch the
probe to the A or mA μA terminal.
• A good A terminal fuse reads approximately 0.1 Ω.
A good mA/μA terminal fuse reads less than 10 kΩ.
• If the display reads , replace the fuse and test
again.
• If the display shows any other value, have the
Product serviced. See “Service and Parts”.
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