ABB Aztec ATS430, Operating Instructions Manual

Page: 19 / 28

Aztec ATS430 | Turbidity sensor
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OI/ATS430–EN Rev. H 19
5. Place the sensor in the sample when prompted and press
the key (below the Continue prompt) to start the
calibration:
The calibration progress window is displayed. When
acquisition is complete a screen displays the calibration
coefficient. Press the
key (below the Exit prompt) to
return to the main menu.
The calibration is now complete.
6.4.3 2-Point calibration
Two 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 required range.
1. At the Calibration Type screen, use the / keys to
select 2-Point Cal and press the key (below the OK
prompt):
2. On the next screen, press the key (below the Next
prompt).
3. On the Low Solution Value screen press the key (below
the Edit prompt) to enter the value of the lower calibration
point. Press the key (below the Next prompt) once the
value is entered.
4. On the 2nd Point Value screen press the key (below the
Edit prompt) to enter the value of the higher calibration
point. Press the key (below the Next prompt) once the
value is entered.
5. Place the sensor in the lower calibration point and press
the key (below the Continue prompt).
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):
6. On completion, remove the sensor from the first calibration
point, clean and insert the sensor into the second
calibration point. Press the
key (below the Continue
prompt) to start data acquisition.
7. If the calibration fails a message is displayed indicating the
reason for failure. If the calibration is successful the next
screen displays the new slope. Press the
key (below the
Exit prompt) to return to the main menu.
The 2-point calibration is now complete.
Calibrate
Abort Continue
Start Cal?
Place in High Sol
1.000 mg/l
Calibration Type
2-Point Cal
Cancel OK
1-Point Cal
Sample Collection
Collection Complete
Manual Coefficient
Suspended Solids
Next Edit
Low Solution Value
0.000 mg/l
Suspended Solids
Next Edit
High Solution Value
1.000 mg/l
Calibrate
Abort Continue
Start Cal?
Place in Low Sol
0.000 mg/l
Calibrate
Abort
PV 0.000 mg/l
PV 0.000 NTU
Settling-Please Wait
Calibrate
Abort Continue
Start Cal?
Place in High Sol
1.000 mg/l