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OPERATIONAL GUIDE
pH Process Calibration
Prior to performing a process calibration, use a hand held meter and probe to determine the pH of the process. Write the value
down.
A process calibration allows the user to adjust the measured pH value so that it matches the value determined with the hand
held meter and without removing the probe from the saddle.
pH process calibration is a single point calibration performed with the probe installed in the process. The calibration point is
changed by using the keys. Press Confirm to save the calibration.
• The controller and the probe should have previously been calibrated in two buffers (so an electrode slope has been determined).
• Press MENU from measurement mode.
• Press the keys to select pH options.
• Press CAL to enter buffer calibration, then press the Process key.
Note: The CLR and Process keys are displayed only if the controller and the probe have been previously calibrated on
the meter.
pH Process Calibration Error Messages
Maximum Window
Displayed if the limits (maximum or minimum) are reached.
Inconsistency
Displayed if the pH value is out of range.
Set Calibration Point
Displayed if the onscreen value changes when pressing the keys. The displayed set point is automatically set to the
current point limits.
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