ABB AWT420 - TSS manual calibration

78 AWT420 | UNIVERSAL 4-WIRE, DUAL-INPUT TRANSMITTER | OI/AWT420-EN REV. B
…15 Calibration procedures
…TSS calibration
…2-Point calibration
7 Ensure the sensor is inserted in the solution and press
the key to start the verification routine.
The calibration process screen is displayed:
• If the calibration fails the result screen is displayed with
the reason for failure.
• If the calibration passes the procedure moves
automatically to the high buffer calibration.
8 Ensure the sensor is inserted in the solution and press the
key to start the verification routine.
The calibration process screen is displayed:
On completion the result screen is displayed.
• If the calibration passes the new settings are displayed.
• If the calibration fails the reason for failure is displayed.
Note. The calibration can be canceled at any time during the
process by pressing the Abort key ( ).
TSS manual calibration
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 TSS Manual Cal menu is displayed:
3 Press the / keys to select TSS Manual Cal and
press the key to confirm selection.
The calibration slope is displayed:
4 Use the key to edit the slope.
Use the / keys to select the required Calibration Type
and press the key to confirm selection.
Press the and key to proceed to the next step.
The Calibration Complete screen is displayed:
Calibrate
PV 0.000 mg/l
mV 0.000 NTU
Settling - Please Wait
Abort
Calibrate
Start Cal ?
Place in High Sol
1.000 mg/l
Abort
Continue
Calibrate
PV 1.000 mg/l
PV 200 NTU
Settling - Please Wait
Abort
Calibrate
Back
Select
S1 : Turb TSS
S2 : Turb TSS
Hold Outputs
Calibrate
Back
Select
Sensor Verication
Turbidity Cal
TSS Cal
TSS Manual Cal
Sample Collection
Collection Complete
TSS Manual Cal
Manual Slope
0.0000
Next
Edit
TSS Manual Cal
Calibration Complete
Next
Edit