General Maintenance - FaraDigi FDM18A User Manual

5.1 General maintenance

_A
To avoid any electric shock or damage to the meter, do
not attempt to clean the inside of the meter. You must
remove the line connecting a test lead to input signals,
a
before
You must regularly use damp cloth and a small quantity of
detergent to clean the meter's shell. Don't attempt the use of any
abradant or chemical solvent.
The dirty or damp input socket may affect reading.
Steps for cleaning input sockets:
• Disenable the meter and pull all test leads out of the input socket.
• Clean up all dirty substances on sockets.
• Use a new cotton ball with a detergent or lubricant to clean each
socket, because lubricant can prevent the socket vulnerable to
dampness from pollution.
5.2 Battery & fuse replacement
To avoid any electric shock or personal injury as a
result of incorrect reading, replace batteries once the
symbol
Only the designated fuse (600mA/ 250V,10A/ 250V
quick-acting fuse) can be used.
To avoid any electric shock or personal injury, don't
attempt to open the battery cover to replace batteries,
unless you have already powered off the device and
carried out an examination to ensure that the test lead
has been disconnected from the circuit to be measured
Batteries must be replaced by the following steps:
1. Cut off the power to the meter.
2. Pull all test leads out of the input socket.
3. Use a screw driver to unscrew the bolts that are used to fix battery
cover.
4. Take off the battery cover.
5. Remove the old batteries or the damaged protective tubes.
enin the case or batte
'1: +I "
appear on the display unit.
-
. .
cover.
.