OPERATION
5
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OPTISENS TUR 2000
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07/2017 - 4001970202 - MA OPTISENS TUR 2000 R01 en
Step 5: Zero point calibration
•
Position the sensor in a cup or bucket out of a material which has little to none light reflecting
characteristics.
•
Pour in the standard solution making sure that the complete sensor optics is submersed in it.
•
The sensor shall not stand vertical, but at a light angle to reduce any influences due to
reflection.
•
Cover the setup with a cloth to shut out any interfering sun light.
Please wait till the measured value is stable.
•
Press
^
^
^
^
to confirm.
Press
or
to change the value and press >>>> to move to the next digit in the displayed value. To select the
standard value (e.g. 0.000 NTU) confirm with
^
^
^
^
.
The sensor default is 0.020 NTU
The submenu calibrate zero? start calib.
calibrate zero? start calib.
calibrate zero? start calib.
calibrate zero? start calib.is displayed.
•
Press
^
^
^
^
to start the calibration.
The message zero calibration successful
zero calibration successful
zero calibration successful
zero calibration successful is displayed.
•
Press
^
^
^
^
to confirm.
The actual measured value is displayed.
INFORMATION!
The zero calibration value is allowed to deviate a maximum of 0.4 NTU from 0.0. The sensitivity
calibration value is allowed to be within 70-130% of calculated signal strength.
Step 6: Preparing the sensitivity calibration
Figure 5-2: Sensitivity calibration
1
Standard solution (e.g. 100,00 NTU)
2
Dark beaker
3
Opaque cover