ABB AWT210 - Calibration; pH Sensor Calibration

42 AWT210 | 2-WIRE CONDUCTIVITY, PH/ORP, PION TRANSMITTER | OI/AWT210-EN REV. C
12 Calibration
pH sensor calibration
Auto Buffer Cal
Performs a 2 point calibration using 2 pre-defined buffer
Auto Buffer Setup, page 32.
Available only if Measurement Type = pH.
1 Immerse in Buffer 1
– – – –
Auto Buffer Cal
Abort Continue
Immerse in Buffer 1
ABB
4.00 pH
The details of buffer solution 1 are
displayed.
Immerse the sensor in the buffer
solution and press to continue.
2 Monitoring (Buffer 1)
– – – –
Auto Buffer Cal
Abort
PV 4.03 pH
SV 25.2 °C
Live process values are displayed.
The progress of the process value
stability check is indicated on the
progress bar. The procedure moves
automatically to the next stage
upon completion.
3 Immerse in Buffer 2
– – – –
Auto Buffer Cal
Abort Continue
Immerse in Buffer 2
ABB
7.0 0 p H
The details of buffer solution 2 are
displayed.
Immerse the sensor in the buffer
solution and press to continue.
4 Monitoring (Buffer 2)
– – – –
Auto Buffer Cal
Abort
PV 7.14 pH
SV 25.2 °C
Live process values are displayed.
The progress of the process value
stability check is indicated on the
progress bar. The procedure moves
automatically to the next stage
upon completion.
5 Completion
– – – –
Auto Buffer Cal
Exit
PV 7.14 pH
SV 25.2 °C
PV Slope 100.00%
PV Offset 8.94 mV
Following a successful calibration
the calculated coefficients are
displayed.
Following an unsuccessful
calibration the reason for failure
is displayed.
– – – –
Auto Buffer Cal
Exit
PV 7.14 pH
SV 25.2 °C
Calibration Failed
Offset Too High