User Maintenance; Introduction; Cleaning; Testing The Fuses - Fluke 867B User Manual

Introduction

This chapter covers basic maintenance procedures
that can be performed by the user. For complete
service, disassembly, repair, and calibration
information, refer to the 867B/863 Service Manual
(PN 689312).

Cleaning

Clean your GMM test tool with a damp cloth and a
mild detergent. Do not use abrasives, solvents, or
alcohol.
m
To avoid ELECTRICAL shock, remove the
test leads and any input signals before
opening the case.
Warning

User Maintenance

Testing the Fuses

Test the fuses with the following procedure:
1. Turn the selector to Ohms (
2. Connect a test lead between the V and
mAµA input terminals. Check that the display
reads less than 5Ω. This tests the 440 mA fuse.
If this reading is "OL", refer to the following fuse
replacement information.
3. Move the test lead from the mAµA terminal to
the A terminal. Check that the display reads less
than 5Ω. This tests the high energy (11A) fuse. If
this reading is OL, refer to the following fuse
replacement information.
4. If either reading is outside the range shown,
have the GMM test tool serviced.
Chapter 7
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