9. CLOCK BACKUP BATTERY
REPLACEMENT
1)When do not plug the AC/DC 9V adapter to the meter,
if the left corner of LCD display show " ", and
text " LoBAt ", it is necessary to replace the battery.
2)Loose the " Screw of the battery cover " ( 3-10, Fig. 1 )
and take away the " Battery Cover " ( 3-9, Fig. 1 ) from
the instrument and remove the battery.
3)Replace with DC 1.5 V battery ( UM4/AAA,
Alkaline/heavy duty ) x 6 PCs, and reinstate the cover.
4)Make sure the battery cover is secured after changing
the battery.
Backup batteries consideration :
If the meter do not install those " Clock backup batteries " ,
the meter still can work, however we recommend
strongly to install the batteries DC 1.5 V battery ( UM4,
AAA ) x 6 PCs into the " Battery compartment " ( 3-9,
Fig. 1 ) for clock time base backup. If do not install
those batteries, the internal clock may can not run
properly after the meter is disconnect from the " AC/DC
9V adapter " for a certain period.
10. SYSTEM RESET
If the meter happen the troubles such as :
CPU system is hold ( for example, the key button can
not be operated... ).
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