Replacing The Logger Battery - Omega Engineering OM-70 Series User Manual

Replacing the Logger Battery

The loggers use a single Lithium CR2032 coin cell. This battery is readily available. The logger battery level is
shown on the logger display, or can be checked using the Interface Software, by opening the Logger Status window.
To insure reliable logging, especially in low temperatures, it is suggested that the battery is replaced when the
battery level reaches 1 bar on the display, or is in the yellow zone in the Interface Software. When the battery
indicator is empty on the logger display, or reaches the red zone in the Interface Software, the battery needs to be
replaced before any logging takes place. When the battery level is too low, the logger will stop logging
automatically to prevent data corruption.
To conserve battery power, the logger will shut down automatically when not logging, after about one hour of
operation. To turn the logger back On, just press any button. The logger can run, while logging, continuously for
about 3 years, under normal conditions.
To replace the battery:
1. Disconnect the logger from the USB cable. Do not replace the battery while the USB cable is connected!
2. Press any button on the logger to ensure that the logger is not in the power down state.
3. Place the logger, screen down, on a flat surface. Using a screwdriver, remove the 4 screws in the back of
the logger and carefully remove the back of the case.
4. Carefully remove the back case. Do not lift the logger while doing this since the display can fall out.
5. Carefully remove the logger board from the case.
6. Using a small screw driver, gently push the battery out the holder. Once the battery is part way out, you
can use your fingers to grab it and pull it out. Do not use twizzers or pliers since they will short the battery
terminals.
7. Slide the new CR2032 battery into the battery holder. Make sure that the + indicator on the battery
matches the + indicator on the battery holder.
8. Place the board back in the case. Make sure that the pins in the case slide into the four holes in the board.
You may have to lift the unit slightly to make sure that the pins next to the buttons slide into the holes.
9. Replace the logger back cover and replace the 4 screws.
10. The display should show the current reading. If the display is blank after replacing the back cover, make
sure that the back cover is screwed tight against the front cover.
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