Testing And Replacing The Fuses - Fluke 712 Instruction Manual

Testing and Replacing the Fuses

To avoid personal injury or damage to the
calibrator, use only a 0.125A 250V fast fuse,
Littelfuse 2AG.
Fuse F1 protects the input circuit. Fuse F2 protects the output
circuit. Test and replace the fuses using the following procedure:
1. Remove the test leads from the calibrator terminals and turn
the calibrator off.
2. Remove the battery door.
3. Remove the three Phillips-head screws from the case
bottom and turn the case over.
4. Gently lift the top cover from the end nearest the input/output
terminals until it unsnaps from the bottom cover.
5. Gently remove the fuse from its mounting bracket.
6. Measure the resistance of the fuse. An open or high
resistance suggests that the fuse is blown.
7. Replace the blown fuse with a 0.125 A 250 V fast fuse,
Littelfuse 2AG.
8. Fit the top and bottom covers together, engaging the two
snaps. Make sure that the keypad and the input/output
terminal gasket are properly seated.
9. Reinstall the three screws.
10. Replace the battery door.
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