ABB AWT420, Operating Instruction

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AW T4 20 |
U N I V ER S A L 4 - W I R E , D UA L- I N P U T T R A N SM I T T ER | O I/AW T4 2 0 - EN R E V. B
…15 Calibration procedures
…In Process calibration
Collection complete
1 At the Calibrate level, press the key:
The Calibrate menu is displayed:
2 Use the / keys to select the sensor to be calibrated,
and press the key to confirm selection.
The Collection Complete menu is displayed:
3 Use the / keys to select Collection Complete and
press the key to proceed confirm selection.
4 Use the key to edit the New Process setting.
Use the / keys to select Yes/No and press the key
to confirm selection.
If the sensor is installed in a new process or if the calibration
needs to be reset then select
Yes .
To retain the details of the previous calibrations then select
No (adaptive calibration to fine tune the existing
calibration).
5 Press the key to proceed to the next step.
The Collection Complete screen is displayed:
6
The Collection Complete screen shows:
PV : Turbidity recorded when the sample was taken.
TSS : Use the / and keys to enter the suspended
solids value measured in the laboratory and press the key
to confirm changes.
A new calibration coefficient is calculated.
The calibration is now complete.
Calibrate
Back
Select
S1 : Turb TSS
S2 : Turb TSS
Hold Outputs
Calibrate
Back
Select
Sensor Cal
Temperature Cal
Edit Cal
Sample Collection
Collection Complete
Restore Cal Defaults
Collection Complete
New Process
No
Next
Edit
Collection Complete
PV 2000 NTU
TSS 0 00000 mg/l
Next
Continue