IFM SUH251 handleiding
Handleiding
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Ultrasonic flow meter without display SUHxxx
© ifm electronic gmbh 11661449 / 01 07 / 2025 33
10.3.8 Calibration
The calibration factor CGA is used to adjust the temperature-viscosity compensation of the sensor to the
characteristics of the medium used. The calibration factor influences the slope of the measurement
characteristic of the flow measurement.
The slope modification of the measurement characteristic is indicated in percent. The factory
setting is CGA=100%. After a change the calibration can be reset to factory setting.
2
1
140 %
100 %
60 %
MW
V1
V0
V2
Fig.15: calibration of the
measurement characteristic
1: calibration factor CGA
2: process value
MW: measured value
V0: measurement characteristic at factory setting
V1: measurement characteristic 1 after calibration
V2: measurement characteristic 2 after calibration
10.3.9 Zero calibration
If there is a systematic deviation between the measured value and the actual process value, this
measurement inaccuracy can be corrected using the correction factor cOF.
The unit for coF corresponds to the set standard unit of measurement for flow rate.
The internal zero point is shifted by the set value.
MEW
[%]
t
10
0
-10
V1
V0
V2
Fig.16: Zero-point calibration (calibration offset)
t: Time
MEW: Final value of the measuring range
V0: Curve of measured values at factory setting
V1: Curve of measured values after offset
V2: Curve of measured values after offset
Setting range:
coF-FLOW = -10 % … +10%
The parameter is reset to the factory setting both via an application reset and a back-to-box
reset.
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Productinformatie
Merk | IFM |
Model | SUH251 |
Categorie | Niet gecategoriseerd |
Taal | Nederlands |
Grootte | 3640 MB |