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NIS wedge sensors are part of a fixed measurement system for continuous flow measurement and storage of the recorded measurement data. They can be used for clean to slightly polluted media.
NIS wedge sensors are used for flow measurement in full pipes featuring various dimensions.
Readings are detected based on the ultrasonic transit time principle which allows versatile use with high accurate measurement results. Thanks to perfectly matched mounting material the system is ideal for retrofitting of large geometries such as cooling water channels, pipes and surface waters or for replacement of existing flow measurement systems.
|Measurement principle||Ultrasonic transit time|
|Measurement range||NIS: ±20 m/s|
NIS0: ±20 m/s
|Measurement uncertainty||- Flow velocity (vmedium) in path ±0.1 % of measurement value |
- Offset velocity < ±5 mm/s
|Measurement frequency||1 MHz|
|Operating temperature||-20 °C to +50 °C|
|Storage temperature||-30 °C to +70 °C|
|Operating pressure||max. 4 bar|
|Cable lengths||NIS: 10/15/20/30/50/100 m; |
extension option: sensors can be connected to extension modules NFE, cable length between NFE and transmitter max. 200 m
NIS0: 10/15/20/30/50/100 m
|Sensor connection||Continuous pre-configured cable|
|Medium-contacting materials||stainless steel 1.4571, CFK (Carbon)|
|Zero point drift||Absolutely stable zero point|
Specifications subject to change.