Teledyne TED-200 - Medical application oxygen monitor - Manual (Page 12)

2 Operations
Teledyne Analytical Instruments 2-2
Figure 2: TED 200-T rear view
Sensor cable receptacle
Battery compartment
2.1.1 Battery Installation or Replacement
Note: Four “AA” alkaline batteries must be installed in the unit before the TED
200-T will operate. Each time new batteries are installed, the display will
flash AIR CAL. The HI alarm will read 100%; the LO alarm will read 17%.
The oxygen value will be blank until the unit is calibrated in air.
Note: When new batteries are installed, typically, the unit is suitable for use
immediately after installation.
1. Turn the unit off (if it is on).
2. Open the battery compartment. Door swings open left to right.
3. Remove the battery holder and take out batteries, if any.
CAUTION: Improper installation of the batteries may result in heat dam-
age to the batteries.
Note: Use alkaline batteries only. Other types will give erroneous battery test
readings.
4. Install 4 “AA” alkaline batteries into the holder. 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 “–” (the end with the spring). Place
the top (button) or positive end of the battery in the end of the holder marked
“+”. Do this for each battery.
5. Snap the battery holder onto the red and black wired snap connector and
slide the battery holder into the compartment. Be careful not to pinch the
wires. The holder should seat firmly in the compartment.