The 2-position switch located in the
battery compartment must be set by the
user if the power supply method is
changed. The up position is for the 9
volt battery. The down position allows
for either the AC adapter or the
rechargeable batteries. The AC adapter
will trickle charge the rechargeable
batteries if they are in place or it will
simply allow for line power operation of
the unit.
9 VOLT ALKALINE BATTERY REPLACEMENT
WARNING: Replace batteries only in a non-hazardous environment.
The 9 volt battery should be replaced or the NiMH battery pack should be
recharged when the voltage drops below 6.4 volts. The battery voltage is
displayed when the instrument is turned on. While turned on, the battery
voltage can be displayed at any time by pressing the up or down arrow keys to
move through the display until the battery voltage screen appears. If, while
operating, the battery voltage drops below 6.4 volts, the display will
automatically switch to the display showing the battery voltage along with a
low battery message. After a low battery occurs, the unit will continue to
operate for approximately 8 hours. When the battery voltage falls to 6.2 volts
or below, the unit will automatically turn off.
Replace only with an approved 9 volt alkaline battery.
APPROVED 9 VOLT BATTERIES
Eveready: Energizer 522, EN22, 6LR61
Duracell: MN1604
Panasonic: 6LR61, 6AM6X
Rayovac: A1604
UltrLife: U9V
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