
42
MENU
Calibration
An ORP calibration is a single point calibration. The calibration point value is displayed, and the value
can be adjusted ± 60 mV around the measured mV.
If an ORP calibration standard is used, the probe is removed from the process, cleaned off then placed
in a beaker with the standard.
1. Press
CAL
when the instrument is in mV measurement mode. The mV value is displayed.
2. Press the
keys to adjust the value.
3. After the reading has stabilized and the mV offset is inside the offset window,
CFM
virtual key is
displayed. Press
CFM,
to confirm ORP calibration.
The instrument will return to the main menu.
11.1.1.4. pH (ORP) Clear Calibration
1. Press
CAL
, to enter calibration mode.
2.
CLR
option is displayed for a few seconds.
3. Press
CLR,
to clear previous calibration.
4. Press
Yes,
to confirm calibration.