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GENERAL OPERATIONS
15
6.3.3. MA831R Temperature Probe
MA831R
is connected to the meter through a RCA connector (labeled Temp.)
With the meter off:
y
Connect the probe to the RCA socket on the top right of the meter.
y
Push the plug into the socket.
y
Place the probe into the holder and secure the cable in clips.
6.4. ELECTRODE CARE & MAINTENANCE
6.4.1. MA917B/1 pH PROBE
Calibrating & Conditioning
Maintaining a pH electrode is critical to ensure proper and reliable measurements. Frequent
2- or 3-point calibrations are recommended to ensure accurate and repeatable results.
Prior to using the electrode for the first time
1. Remove the protective cap. Do not be alarmed if salts 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. For refillable electrodes, if the refill solution (electrolyte) has dropped more than
2½ cm (1”) below the fill hole, add the appropriate electrolyte solution.
4. After conditioning, rinse the sensor with distilled or deionized water.
Note:
To ensure quick response and avoid cross‑contamination, rinse the electrode tip
with the solution to be tested before measurement.
Best practice when handling an electrode
y
Electrodes should always be rinsed between samples with distilled or deionized water.
y
Do not wipe an electrode as wiping can cause erroneous readings due to static charges.
y
Blot the end of the electrode with lint-free paper.