80
7.3 ORP Calibration
7.3.1 Description
For process control, it is often important to make the measured ORP agree with the ORP of a standard solution. During
calibration, the measured ORP is made equal to the ORP of a standard solution at a single point.
Measure
Sec.
Menu function: default
Description
ORP
7.3.2
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 Sensor 1 or Sensor 2 corresponding to
ORP. Press ENTER.
4. Select ORP. Press ENTER.
The following screen will appear. To calibrate ORP or
Temperature, scroll to the desired item and press
ENTER.
S1: 1.234µS/cm 25.0ºC
S2: 12.34pH 25.0ºC
S
N
Calibrate?
ORP
Temperature
7.3.2 Standardization — ORP
For process control, it is often important to make the
measured ORP agree with the ORP of a standard
solution. During calibration, the measured ORP is made
equal to the ORP of a standard solution at a single
point. This screen appears after selecting ORP cali-
bration:
If the ORP Cal is successful, the screen will return to the
Cal sub-menu.
The following screen may appear if ORP Cal is
unsuccessful.
S1: 1.234µS/cm 25.0ºC
S2: 12.34pH 25.0ºC
S
N
Enter Value
+0600 mV
S1: 1.234µS/cm 25.0ºC
S2: 12.34pH 25.0ºC
S
N
Standardize
Offset Error
Calculated: 61.22mV
Max: 60.00mV
Press EXIT
THIS SECTION DESCRIBES HOW TO CALIBRATE THE MODEL 1056 WITH AN ORP SENSOR. THE FOL-
LOWING CALIBRATION ROUTINE IS COVERED.
A detailed flow diagram is provided at the end of Sec. 7 to guide you through the calibration routines.
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 Sec. 7 and the live screen prompts to complete calibration.
TABLE 7-2
ORP Calibration Routine
The following screen may appear if ORP Cal is unsuccessful.
An Offset Error will generate this screen display:
If the ORP Cal is successful, the screen will return to the
Cal sub-menu.
S1: 1.234µS/cm 25.0ºC
S2: 12.34pH 25.0ºC
S
N
Standardize
Offset Error
Calculated: 96mV
Max: 60mV
Press EXIT
Instruction Manual
LIQ-MAN-1056
Section 7.0: Calibration
April 2017
Summary of Contents for Rosemount 1056
Page 4: ...Quick Start Guide Figure A Quick Start Guide ...
Page 5: ...Quick Reference Guide Figure B Model 1056 Menu Tree ...
Page 28: ...20 Instruction Manual LIQ MAN 1056 Section 2 0 Installation April 2017 ...
Page 50: ...42 Instruction Manual LIQ MAN 1056 Section 6 0 Programming the Measurements April 2017 ...
Page 84: ...76 Instruction Manual LIQ MAN 1056 Section 6 0 Programming the Measurements April 2017 ...
Page 122: ...114 Instruction Manual LIQ MAN 1056 Section 7 0 Calibration April 2017 ...
Page 124: ...116 Instruction Manual LIQ MAN 1056 Section 8 0 Return of Material April 2017 ...