12
MW806
Portable Meter
6.4. ELECTRODE CARE & MAINTENANCE
Calibrating & Conditioning
Maintaining a combination pH/EC/TDS/Temperature electrode is
critical to ensure reliable measurements.
Frequent 2‑ or 3‑point calibrations are recommended to ensure
accurate and repeatable results.
Prior to first use
1. Remove the protective cap. Do not be alarmed if salt deposits
are present, this is normal. Rinse the electrode with distilled
or deionized water.
2. Place the electrode in a beaker containing
MA9016
Cleaning
solution for a minimum of 30 minutes.
Note: Do not condition a pH electrode in distilled or deionized
water as this will damage the glass membrane.
3. After conditioning, rinse the sensor with distilled or deionized
water.
Note: To ensure quick response and avoid cross‑contamination,
rinse the pH electrode tip with the solution to be tested before
measurement.
Best practice when handling an electrode
y
pH electrodes should always be rinsed between samples
with distilled or deionized water.
y
Blot the end of the pH portion of this probe with lint‑free paper.
Do not wipe to avoid erroneous readings due to static charges.
y
Connectors should be clean and dry.
Storage
To minimize clogging and ensure quick response time, the glass
bulb and the junction should be kept hydrated.
Add a few drops of
MA9015
Storage solution to the protective cap.
Replace the storage cap when the probe is not in use.
Note: Never store the probe in distilled or deionized water.
