4. MAINTENANCE
1) Before open the battery door, disconnect
both test lead and never use the meter
before the battery door is closed.
2) To avoid contamination or static damage, do
not touch the circuit board without proper
static protection.
3) If the meter is not going to be used for a
long time, take out the battery and do not
store the meter in high temperature or high
humidity environment.
4) When taking current measurement, keep
the cable at the center of the clamp for more
accurate test result.
5) Repairs or servicing not covered in this
manual should be done only by qualified
personal. Periodically wipe the case with a
dry cloth and detergent. Do not use
abrasives or solvents on the meter.
6) Please take out the battery when not using
for a long time.
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3.9 Data Hold
On any range, press the
“D. HOLD”
key to lock
display value, and the
“HOLD”
sign will appear on
the display, press it again to exit.
3.10 MAX/MIN
Press the
“MIN/MIN”
key to lock
MAX
or
MIN
value,
and the
“MAX”
or
“MIN”
sign will appear on the
display, press it over 2 seconds to exit.
3.11 Back Light
On any range, press the
“D. HOLD”
key over 2
seconds to light the back light, press it again for more
than 2 seconds to Shut the light. The light can Shut
automatically after 10 seconds too.
3.12 Relative measurement
Press the
“REL
Ä” key, you can measure the relative
value and “Ä” sign will appears on the display, the
auto range mode be changed to manual range mode.
Press it again to exit relative measurement and
“
Ä
”
sign disappears, but you can not go back to auto
range mode. This function can be used to zero the
reading on
DCA
range.
This function is non effective
on
Hz/DUTY
measurement.
5. Battery Replacement
1) When the battery voltage drop below proper
operation range, the “ ” symbol will appear on
the LCD display and the battery need to be
changed.
2) Before changing the battery, set the selector
switch to
“OFF”
position. Open the cover of the
battery cabinet by a screwdriver.
3) Replace the old battery with the same type battery
4) Close the battery cabinet cover and fasten the
screw.
Caution :
Dispose the used batteries according to
the rules, which are defined by each community.
+ -
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