Endress+Hauser Proservo NMS83 Operating Instructions Manual page 251

Proservo NMS83
Endress+Hauser
Linear approximation of the HyTD correction
The real amount of deformation varies non-linearly with the level due to the construction
of the tank. However, as the correction values are typically small compared to the
measured level, a simple straight line method can be used with good results.
H
 71 Calculation of the HyTD correction
1 Linear correction according to "Deformation factor (→  253)"
2 Real correction
3 Starting level (→  252)
L Measured level
H HyTD correction value (→  252)
Calculation of the HyTD correction
L Measured level
L Starting level
0
c HyTD correction value
HyTD
D Deformation factor
3
L
0
L < L = C = 0
0 HyTD
L > L = C = - (L - L ) x D
0 HyTD
Operating menu
1
2
L
0
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