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Portable Oxygen Monitor Operation
Teledyne Analytical Instruments 19
2.1.3 Battery Installation
Note: Three “AA” alkaline batteries must be installed in the unit
before the monitor will operate. The unit must be
recalibrated whenever new batteries are installed and
the HI and LOW alarm set points must be reset to the
desired values
To install the batteries:
1. Turn the unit off (if it is on).
2. Hold the instrument face down in the palm of your hand. Use
a coin to pry up the latch that secures the battery
compartment door. Remove the battery compartment door.
CAUTION: IMPROPER INSTALLATION OF THE BATTERIES
MAY RESULT IN DAMAGE TO THE UNIT AND
BATTERIES.
Note: Use alkaline batteries only. Other battery types will
produce erroneous battery test readings.
3. Install 3 “AA” alkaline batteries into the holder as shown in
Figure 2-6. Each battery has its own slot. To insure proper
polarity, place the bottom (flat) or negative end of the battery
in the end of the holder marked “–”. Place the top (button) or
positive end of the battery in the end of the holder marked
“+”. Do this for each battery.
Figure 2-6: Installing Batteries