Flow Sensors

NOS Hemispheric and Ballhead Sensor

Part No. NOS-VX0B

For measurement places with various geometries

For connection to NivuFlow 650 transmitters. High accurate flow measurement based on the transit time method for open channels and waters, mainly process water channels and natural water bodies.

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NOS hemispheric sensor with mounting sheet for flow measurement in clean to slightly polluted media

NOS hemispheric sensor for flow measurement in clean to slightly polluted media

Ballhead sensor for flow measurement with transit time

Ultrasonic transit time sensor for connection to NivuFlow 650
Hydrometry with highest measurement accuracy
Measurement in clear to slightly polluted water
For 8-path measurements according to IEC 60041 (ASME PTC 18)
Measurement in open channels and surface water bodies
Resistant sensor material for use in various media
Up to 100 m of cable length between sensor and transmitter or adapter box

NOS hemispheric and ballhead 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 in part filled and full flumes as well as channels featuring various geometries and dimensions.

Typical NOS hemispheric and ballhead sensor applications

Fixed measurement of surface water bodies such as rivers, channels and similar
Irrigation systems
Inlets and outlets conducting cooling water or circulation systems
WWTP outlets
Investigation of infiltration/extraneous water or leakage
Industrial flow measurements
and many more

Common
Measurement principle	Ultrasonic transit time method
Measurement uncertainty	flow velocity (v average) ± 0.1 % of measurement uncertainty value within the path
Measurement frequency	0,9 – 1,2 MHz
Protection	IP68
Operating temperature	-10 °C to +50 °C
Storage temperature	-20 °C to +60 °C
Operating pressure	max. 1 bar
Cable lengths	10/15/20/30/50/100 m pre-configured, with underwater plug to facilitate installation
Weight (sensor head)	approx. 1000 g
Medium-contacting materials	POM, carbon, stainless steel

Specifications subject to change.

Technical Instructions for Transit Time Sensors

Instruction Manuals / Technical Information English

In download cart Add to download cart download file PDF 1.84 MB

Installation Instructions for Transit Time Sensors

Instruction Manuals / Technical Information English

In download cart Add to download cart download file PDF 3.19 MB

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