23
General Operation
DC Power Source
3 General Operation
This section explains the details of the operation of the 1523/24 reference thermometer
with its components and accessories.
3.1 Battery
The 1523/24 uses three (3) “AA” alkaline batteries that can power the instrument
for 20 hours without replacement. The batteries will discharge more quickly if the
backlight is used often. The battery icon will blink as the batteries approach depletion.
When the battery icon is blinking, the user should replace batteries immediately to
avoid affecting the accuracy of the instrument.
The batteries can be easily removed and replaced in the eld by following this
procedure:
1. Power the 1523/24 off and unplug the AC adapter from the unit.
2. Remove the yellow boot.
3. With the 1523/24 facing down, remove the screw and battery cover.
4. Remove the batteries.
5. Place new batteries into the unit.
6. Close the battery cover and replace the screw.
7. Replace the yellow boot.
Warning: Used batteries must be disposed of properly. Check your local
regulations for additional information. You may return used batteries to the
manufacturer. Never dispose of batteries in fire as this may result in explosion
with the possibility of personal injury or property damage.
3.2 DC Power Source
The DC power source provides power to the 1523/24 reference thermometer. The AC
adapter provided with the 1523/24 is intended to be used for this purpose. Use only
the AC adapter supplied with the instrument. The DC power source plugs into the DC
power input on the right side of the 1523/24.
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