OAK Environmental Express PH250, Instruction Manual

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Temperature calibration
15
● Temperature Calibration
Temperature calibration is required to accurately match pH electrode to the meter. Check the
temperature reading and if it is acceptable, no temperature calibration is required. If you need
to calibrate, please follow the procedure detailed below:
Prerequisites
• Clean the pH electrode with DI (deionized) water and wipe it with tissue paper.
• Switch on the pH meter and plug in the pH electrode and temperature sensor.
• Dip the pH electrode in any buffer solution till its temperature sensor is immersed.
• Wait for 5 minutes to ensure temperature stability.
• Meter displays MTC if the temperature sensor is not plugged in and displays ATC if the
temperature sensor is plugged in.
• Temperature calibration must be performed using a known temperature solution or against
a calibrated thermometer.
To abort an ongoing calibration process at any point of time, press the key.
Note
Tip