ORP Settings
The meter contains 1 ORP setting and 7 general settings in the setup
menu.
Resolution
Set the resolution of the mV measurement.
If you want to change the current settings, press and hold the key
to enter the setup menu. Press the / key to select an option and
press the Enter key to confirm.
Refer to the Setting a Default Option section for detailed
instructions on page 7.
ORP Calibration
The 9 series meter allows 1 point calibration in the ORP mode, but
calibration is not necessary unless exact readout agreement with a
work standard and at a specific ORP value is needed.
1.1 Rinse the ORP electrode with distilled water, place the electrode
into the standard solution, stir gently and wait until the
measurement is stable.
1.2 Press the Cal key, the meter enters the calibration mode.
1.3 If necessary, press the / key to set the calibration value.
1.4 Press the Enter key, the meter will show and return to the
measurement mode. Calibration is completed.
To exit the calibration without saving changes, press the Meas key.
Viewing the Calibration Log
2.1 Press the MR key in the ORP measurement mode and press the
key until the meter shows / (Electrode / Page 2).
2.2 Press the Enter key, the meter shows the last calibration date.
2.3 Press the key to view the offset potential.
2.4 To exit the calibration log, press the Meas key.
If the meter is not calibrated with standard solution, the display will
show ---- only.
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