2-Point Calibration - ABB Aztec ATS430 Operating Instructions Manual

The Turbidity | Calibration Value screen is displayed where
the calibration value can be modified by pressing the
key (below the Edit prompt).
Turbidity
Calibration Value
200.0 NTU
Next
When the required value is set, press the
Next prompt).
8. Once the value shown on screen matches the span value,
insert the sensor in the verification tool or solution and
press the key (below the Continue prompt).
Calibrate
Start Cal?
Place in High Sol
200.0 NTU
Abort
The calibration process screen is displayed – the calibration
can be cancelled at any time during the process by pressing
the key (below the Abort prompt):
Calibrate
200 NTU
56.00 mV
Settling-Please Wait
Abort
9. If the calibration is successful the final screen displays the
new slope. Press the
return to the main menu.
The 1-point calibration is now complete.
16 OI/ATS430–EN Rev. H | Aztec ATS430 | Turbidity sensor
Edit
key (below the
Continue
key (below the Exit prompt) to

6.3.3 2-Point calibration

2 Solutions are used for a 2-point calibration. This calibration is
used when more accuracy is needed over a given range, using
calibration solutions at either end of the desired range.
1. At the Calibrate level, press the
prompt):
Menu
Calibrate
Exit
The sensor selector menu is displayed:
Calibrate
S1:Turb TSS
Hold Outputs
Back
2. Highlight the sensor to be calibrated and press the
(below the Select prompt).
The menu options for S1: Turb TSS are displayed:
S1:Turb TSS
Sensor Verification
Turbidity Cal
TSS Cal
Restore Defaults
Back
3. Use the / keys to select Turbidity Cal and press the
key (below the Select prompt).
The Turbidity screen is displayed:
Turbidity Cal
Calibration Type
1-Point Cal
Next
key (below the Select
Select
Select
Select
Edit
key