Endress+Hauser Proservo NMS83 Brief Operating Instructions page 43

Proservo NMS83
7.4.3 Sensor calibration
Sensor calibration adjusts the weight measurement of the detector unit. The calibration
consists of three steps as follows.
• ADC zero calibration
• ADC offset calibration
• ADC span calibration
For the ADC offset weight calibration, either 0 g or an offset weight (0 to 100 g) can be used.
Using an offset weight other than 0 g is recommended for density measurement.
 20 Concept of sensor calibration
m Weight of displacer
B Binary value of AD-Converter
m Span weight
S
m Offset weight in case of 0 to 100 g (50 g is recommended.)
o1
m Offset weight in case of 0 g
o2
m Zero weight
z
Endress+Hauser
m
m
m
O2
m
z
m
O1
S
B
Commissioning
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