Ph/Redox/Orp Calibration; 1-Point Calibration - ABB AWT420 Operating Instruction

60 AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | O I/A W T4 2 0 - E N R E V. B
...15 Calibration procedures

pH/Redox/ORP calibration

Used to calibrate the sensor to measure pH using pH buffers.
The automatic calibration provides automatic temperature
compensation to the selected buffer.

1-Point calibration

1 At the Calibrate level, press the
The Calibrate menu is displayed:
Calibrate
S1 : pH/Redox (ORP)
S2 : pH/Redox (ORP)
pH Buffers
Hold Outputs
Back
2 Use the
/ keys to select the sensor to be
calibrated, and press the
The pH calibration menu is displayed:
Calibrate
Sensor Cal
Temperature Cal
Edit Cal
Sample Collection
Collection Complete
Restore Cal Defaults
Back
key:
Select
key to confirm selection.
Select
3 Use the / keys to select sensor calibration and
press the key to confirm selection.
The calibration type is displayed:
Sensor Cal
Calibration Type
1-Pt Manual
Next
4 Use the
key to edit the calibration type.
Use the / keys to select the required calibration
type and press the key to confirm selection.
Press the key to proceed to the next step.
The buffer temperature is displayed:
Sensor Cal
Buffer Temperature
25.0 °C
Next
5 Use the
key to edit the buffer temperature.
Use the / keys to set the temperature and press
the key to confirm changes.
Press the key to proceed to the next step.
The buffer value is displayed:
Sensor Cal
Buffer Value
4.0 pH
Next
Edit
1 2 3
Edit
1 2 3
Edit