ABB AWT210 - Manual Calibration Procedures

AWT210 | 2-WIRE CONDUCTIVITY, PH/ORP, PION TRANSMITTER | OI/AWT210-EN REV. C
43
1-point manual calibration
Performs a manual calibration (Offset adjustment) at a single
reference point.
1 Wait for stable reading
– – – –
PV 7.00 pH
Continue When Stable
1 Point Manual
Abort
Continue
Monitor the process value and
continue ( ) to the next step once
the value has stabilized.
2 Enter the new value
– – – –
PV 7.00 pH
New
0 0 7.1 2
1 Point Manual
Next
Continue
Enter the desired PV value by
pressing the key to move the
cursor and the keys to
change the value. When the new
value has been entered press the
key to continue.
3 Completion
Following a successful calibration
the calculated coefficients are
displayed.
Following an unsuccessful
calibration the reason for failure
is displayed.
2-point manual calibration
Performs a 2-point calibration using 2 pre-defined buffer
solutions.
1 Buffer temperature
– – – –
Buffer Temperature
25.0 °C
2 Point Manual
Next
Edit
The temperature of the buffer
solutions is displayed. The
temperature can be edited by
pressing the key. When the
buffer temperature is correct press
the key to continue.
2 Buffer 1 value
– – – –
Buffer 1
4.00 pH
2 Point Manual
Next
Edit
The value of the 1
st
buffer solution
is displayed. The value can be
edited by pressing the key.
When the buffer value is correct
press the key to continue.
3
Wait for stable reading – 1
st
buffer solution
– – – –
PV 4.03 pH
2 Point Manual
Abort
Continue
Immerse In Buffer 1
Continue When Stable
Immerse the sensor in the buffer
solution, monitor the process value
and continue to the next step
once the value has stabilized.
4 Buffer 2 value
– – – –
Buffer 2
7.00 pH
2 Point Manual
Next
Edit
The value of the 2
nd
buffer solution
is displayed. The value can be
edited by pressing the key.
When the buffer value is correct
press the key to continue.
5
Wait for stable reading –
2
nd
buffer solution
– – – –
PV 7.15 pH
2 Point Manual
Abort
Continue
Immerse In Buffer 2
Continue When Stable
Immerse the sensor in the buffer
solution, monitor the process value
and continue to the next step
once the value has stabilized.
6 Completion
Following a successful calibration
the calculated coefficients are
displayed.
Following an unsuccessful
calibration the reason for failure
is displayed.
– – – –
1 Point Manual
Exit
PV 7.12 pH
PV Slope 100.00%
PV Offset 8.94 mV
– – – –
1 Point Manual
Exit
PV 7.14 pH
Calibration Failed
Offset Too High
– – – –
2 Point Manual
Exit
PV 7.00 pH
PV Slope 98.75%
PV Offset 8.94 mV
– – – –
2 Point Manual
Exit
PV 7.15 pH
Calibration Failed
Slope Too High