Battery Replacement - Extech Instruments PH220 User Manual

Battery Replacement

The 9V alkaline battery that powers the instrument requires replacing when all battery icon 'fill
bars' are depleted. To replace the battery, follow the steps below:
Disconnect the electrode.
1.
Remove the instrument's protective jacket by pulling it over the top of the meter (ensure that
2.
the electrode is disconnected).
Pry the battery compartment up from the top of the meter using a screwdriver or coin at one
3.
of the two indentations (see diagram).
Replace the 9V battery.
4.
Insert the battery compartment into the instrument until the compartment is flush with the
5.
top of the instrument. The compartment can only be fully inserted in one direction; the
battery compartment is labeled showing the correct orientation.
Replace the protective holster.
6.
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