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CALIBRA
TION
• The "CAL" tag will is displayed in measurement mode after the calibration.
• If the buffer is not recognized, "---- WRONG" message is displayed. It is recommended to change
the solution and / or clean the electrode.
• Press CAL key to exit calibration.
Note:
If high accuracy is required, a two-point calibration is recommended.
pH Process Calibration
Prior to performing a process calibration, use a hand held meter and probe to determine pH of the
process. Write the value down.
To enter process calibration, the user must have the controller and probe calibrated previously on the
meter. The "CAL" tag must be on.
pH process calibration is a single point calibration performed while the probe remains installed in the
process. The value can be set ± 0.50 pH around measured pH.
• Press CAL key to enter calibration mode. When the first buffer value is displayed, press one of the
arrow keys to enter process calibration.
• Press the arrow keys again to adjust the process calibration value to what was determined with the
hand held measurement. "PROCESS" message is scrolled on the bottom of the LCD screen.
