IFM SUH251 handleiding
Handleiding
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SUHxxx Ultrasonic flow meter without display
32 © ifm electronic gmbh 11661449 / 01 07 / 2025
10.3.5 Low flow cut-off
Low flow quantities can be ignored using the parameter LFC (Low flow cut-off). Flow below the LFC value
is evaluated by the sensor as standstill (Q = 0).
The LFC value influences:
▪ The switching signal for flow
▪ the analogue signal for flow
▪ The frequency signal for flow
▪ the consumed quantity monitoring (switching or pulse signal for flow)
▪ The totalisation of the consumed quantity by the totaliser.
▪ the memory values for minimum and maximum flow
+ LFC
+ Q
t
0
- Q
- LFC
1
Fig.14: Low flow cut-off
+LFC: Minimum flow in positive flow direction
-LFC: Minimum flow in negative flow direction
1: Flow which is evaluated as standstill
10.3.6 Medium
The sensor provides various characteristic curves for the respective media. They can be selected via the
MEdI parameter.
Selectable values:
▪ H2O: Water
▪ OIL46: High-viscosity oils (viscosity: 30…68 mm²/s at 40°C / 30…68 cSt at 104°F)
10.3.7 Flow direction
The positive flow direction can be defined by the user. This setting affects the following functions:
Consumed quantity monitoring (totaliser function) [ 24]
Switching signal for flow direction [ 23]
Analogue signal [ 26]
An arrow with the text “flow direction” on the device indicates the positive flow direction (factory setting).
The direction of the flow rate measurement can be reversed using the parameter Fdir:
Fdir Direction of flow
+ Flow direction in case of factory setting
- Flow direction contrary to the factory setting
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Productinformatie
| Merk | IFM |
| Model | SUH251 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 3640 MB |
