OM-70 Family of Data Loggers
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All newer loggers have the battery readily accessible through a battery compartment in the back of the logger. Older
OM-71, OM-72 and OM-73 loggers require disassembly for battery replacement.
To replace the battery on these older units follow the procedure below:
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.
4.
Carefully remove the back of the 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 tweezers 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.
Summary of Contents for OM-70 Series
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