54
18. 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 1.5V AA
batteries, taking care to observe correct polarity. Replace the battery cover.
19. FUSE REPLACEMENT
The continuity test circuit is protected by a 600V 0.5A 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. If the instrument will not operate in the loop
impedance, PSC/PFC and RCD modes, it may be that the protective fuses fitted on the
printed circuit board have blown. If you suspect that the fuses have failed, return the
instrument to your distributor for service - do not attempt to replace the fuses yourself.
Screw
Spare Fuse
Fuse
-
+
+
-
-
+
+
-
Fig.53
