Turbidity Tss Sensor Verification; Preparing The Verification Tool And Locking The Sensor In Place - ABB AWT420 Operating Instruction

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

Turbidity TSS sensor verification

Preparing the verification tool and locking the
sensor in place
Refer to operating instruction OI/ATS430-EN.
1 At the Calibrate level, press the
The Calibrate menu is displayed:
Calibrate
S1 : Turb TSS
S2 : Turb TSS
Hold Outputs
Back
2 Use the
/ keys to select the sensor to be calibrated,
and press the key to confirm selection.
The TSS calibration menu is displayed:
Calibrate
Sensor Verification
Turbidity Cal
TSS Cal
TSS Manual Cal
Sample Collection
Collection Complete
Back
3 Press the / keys to select Sensor Verification and
press the key to confirm selection.
The Verification Value is displayed:
Sensor Verification
Verification Value
4000 NTU
Next
key:
Select
Select
Edit
4 Use the
key to edit the verification value.
Use the / keys to set the value and press the
to confirm changes.
Press the and key to proceed to the next step.
Verification
Start Verification
4000 NTU
Abort
5 Ensure the sensor is inserted in the verification tool and
press the key to start the verification routine.
The verification process screen is displayed:
Temperature Cal
NTU 3985 NTU
STD 4000 NTU
Settling - Please Wait
Abort
On completion the result is displayed.
Procedure Pass
or
Procedure Failed
Note. The verification process can be canceled at any
time during the process by pressing the Abort key (
Continue
71
key
).