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Old 15-07-2006, 01:48 AM   #4
BarraCuda™
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Join Date: Jul 2001
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How to calibrate?

Rinse the pH electrode in distilled water, flick it dry.

Submerge the pH electrode in pH7 buffer solution. Remember always start with pH7 irregardless of the other pH buffers. If not, the meter will have problems calibrating the 2 values.

Connect the pH electrode to your pH meter (Note: always remember to only switch on or connect to your pH meter only when the pH electrode is wet. You will risk damaging the probe if its dry)



Give it a good stir to remove all bubbles on the bulb, let the readings stablise before adjusting the knob.


Disconnect the pH electrode from the pH meter or switch off the power.
Rinse the electrode in distilled water, flick dry.
Repeat the process for pH4.


You can rinse and dip back into pH7 buffer to verify your results. Wait a min, why the value drifted?!? It was pH7.00 minutes ago and now its pH7.03!!
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