KYORITSU 6011A - Manual (Page 29)

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10. GENERAL
11. BATTERY REPLACEMENT
When the display shows the low battery indication, ( ), disconnect the test
leads from the instrument. Remove the battery cover and the batteries. Replace
with eight (8) new 1.5 V R6 or LR6 batteries, taking care to observe correct
polarity. Replace the battery cover.
The test button can be locked down for ease of use by pressing it and turning
clockwise. Do not forget to release test button by turning it counterclockwise
before disconnecting the instrument from the test points. Failure to do so may
leave the tested circuit in a charged condition when carrying out insulation test.
The instrument is provided with a sliding cover to ensure that leads for testing
continuity and insulation resistance cannot be connected at the same time as
test leads for loop testing and RCD testing. If this sliding cover is damaged so
that it fails to perform its function, do not use the instrument and return it to your
distributor for attention.
12. FUSE REPLACEMENT
The continuity test circuit is protected by a 600 V 0.5 A HRC ceramic type fuse
situated in the battery compartment, together with a spare. If the instrument fails
to operate in the continuity test mode, first disconnect the test leads from the
instrument. Next remove the battery cover, take out the fuse and test its
continuity with another continuity tester. If it has failed, replace it with a spare,
before refitting the battery cover. Do not forget to obtain a new fuse and place it
in the spare position.