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9-Volt Alkaline Battery Replacement
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Power options
There are 3 options for powering the QUESTempº 46: a 9-volt alkaline battery, a NiMH
(Nickel Metal Hydride) rechargeable 6-cell battery pack, and an AC adapter. A door on
the back of the unit allows the user access to the 9-volt battery. The rechargeable
battery pack is located inside of the unit. If the rechargeable battery pack ever needs
to be replaced, it can be accessed by removing the screws from the bottom panel of
the unit.
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.
Figure 1-28: 9-volt battery
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
UltraLife: U9V