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17
MAINTENANCE :
WARNING :
To avoid electrical shock, disconnect the meter from any circuit,
remove the test leads from the input jacks and turn OFF the meter
before opening the case.
Cleaning and Storage :
Periodically wipe the case with a damp cloth and mild detergent; do
not use abrasives or solvents. If the meter is not to be used for
periods of longer than 15 days, remove the battery and store it
separately.
Trouble Shooting :
If the instrument fails to operate, check batteries and test leads,
etc., and replace as necessary. Double check operating
procedure as described in this manual.
If the instrument voltage-resistance input terminal has subjected to
high voltage transient (caused by lightning or switching surge to
the system) by accident or abnormal conditions of operation, the
series fusible resistors will be blown off (become high impedance)
like fuses to protect the user and the instrument. Most measuring
functions through this terminal will then be open circuit. Refer to
the LIMITED WARRANTY section for obtaining warranty or
repairing service.
18
Battery and Fuse replacement :
Battery use :
Standard 1.5V AAA Size (NEDA 24A or IEC LR03) battery X 2
Fuses use :
Fuse (FS1) for
AmA
Current input :
0.4A/1000V ac & dc, IR 30kA, F Fuse or better
Dimension :
6 x 32 mm
Fuse (FS2) for A Current input :
11A/1000V ac & dc, IR 20kA, F Fuse or better
Dimension :
10 x 38 mm
Battery replacement with
battery access door:
Loosen the 2 screws from
the battery access door of
the case bottom. Lift the
battery access door and
thus the battery compartment
up. Replace the battery.
Re-fasten the screws.
Loosen the 4 screws from the case bottom. Lift the end of the case
bottom nearest the input jacks until it unsnaps from the case top.
Replace the blown fuse(s) and/or the battery.
Fuse replacement (and
also Battery replacement
for splash proof version
without battery access
door):
Replace the case bottom, and ensure that all the gaskets are
properly seated and the two snaps on the case top (near the LCD
side) are engaged. Re-fasten the screws.