© PCE Instruments
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17 Electrode Replacement
When the tester fails to calibrate or gives fluctuating readings for calibration standards, you will
need to replace the electrode module.
Twist the electrode collar counter clockwise, pull the old electrode module away from the tester.
Align the slot on the new electrode module, gently push the module into the tester.
Twist the electrode collar clockwise until it is tight. Installation is complete.
18 Replacing the Batteries
If the battery indicator is disappearing during use, you will need to replace the batteries.
1. Twist the electrode collar counter clockwise, pull the electrode module out from the
tester.
2. Insert two “AAA” batteries into the battery compartment, note polarity.
3. Align the slot on the electrode module, push the module into the tester. Twist the
electrode collar clockwise until it is tight.
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