Emerson Rosemount 1066 - ORP and Redox Calibration

Section 9: Calibration Instruction Manual
April 2017 LIQ-MAN-1066
ORP and Redox Calibration
For process control, it is often important to make the measured ORP or Redox agree with the ORP
or Redox of a standard solution. During calibration, the measured ORP or Redox is made equal to
the ORP or Redox of a standard solution at a single point.
To calibrate the ORP loop with a connected ORP sensor, access the Calibration screen by pressing
ENTER from the main screen and press ENTER.
The following calibration routine is covered:
1. Standardization ORP 1 point buffer calibration with manual buffer value entry.
To calibrate ORP:
1. Press the MENU button.
2. Select Calibrate. Press ENTER.
3. Select ORP and Redox. Press ENTER.
The following sub-sections show the initial display screen that appears for each calibration routine.
Use the flow diagram for ORP calibration at the end of
Section 8 and the live screen prompts to
complete calibration.
Standardization – ORP and Redox
For process control, it is often important to make the measured ORP
and Redox agree with the ORP and Redox of a standard solution.
During calibration, the measured ORP and Redox is made equal to the
ORP and Redox of a standard solution at a single point. This screen
appears after selecting ORP and Redox calibration:
If the ORP and Redox Cal is successful, the screen will return to the Cal sub-menu.
The following screen may appear if ORP and Redox Cal is unsuccessful.
9.3
9.3.1
1.234 µS/cm 25.0 ºC
SN Calibrate?
ORP
Temperature
1.234 µS/cm 25.0 ºC
SN Enter Value
+0600 mV
1.234 µS/cm 25.0 ºC
SN Standardize
Offset Error
Calculated: 61.22mV
Max: 60.00mV
Press EXIT
70 Calibration