Electrode Care and Maintenance:
● For best results, always keep the pH electrode membrane wet.
● Ensure that the electrode is thoroughly washed with distilled water after each use.
● During extended periods of disuse, store the sensor with electrode storage solution. DO
NOT use deionised or distilled water.
Electrode Replacement:
When the unit fails to calibrate or gives fluctuating readings for calibration standards, you need
to replace the electrode module.
1. Twist the electrode collar counter clockwise, pull the old electrode module away from the
unit.
2. Align the slot on the new electrode module, gently push the module into the unit.
3. Twist the electrode collar clockwise until it is tight. Installation is completed.
Replacing the Batteries:
If the battery indicator disappears during the use, the batteries require replacing.
1. Twist the electrode collar counter clockwise, pull the electrode module out from the unit.
2.
Insert two “AAA” batteries into the battery compartment (note polarity).
3. Align the slot on the electrode module, push the electrode into the unit.
4. Twist the electrode collar clockwise until it is tight.
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