- For high-accurate flow measurement by means of ultrasonic cross correlation method
- Interference-free connection over long distances through digital signal transmission
- Cables can be extended without any problems using standard cables
- Absolutely stable zero point and drift-free
- Measurement in heavily polluted and abrasive media
- Easy installation without additional constructions and perfectly matched mounting accessories
- Installation under process conditions possible
- Suitable for all channel cross sections
- The tailored selection of sensor constructions ensures the best possible solution for each application
CS2 flow velocity sensors are suitable for continuous measurement of slight to heavily polluted media in channels mainly featuring high levels.
The wedge-shaped sensors are designed for installation on either the channel wall or the channel bottom. Combined with transmitter types such as NivuFlow 750 and an external level measurement the result is a complete flow measurement system.
Typical applications for CS2 wedge sensors
- Wastewater treatment plants: intake, discharge, activated sludge tank intakes, return sludge, recirculation, surplus sludge, digester discharge and flocculant dosage
- Industrial wastewater networks
- Large Collectors
- Particularly suitable for large channels featuring levels starting at 500 mm
General | |
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Construction | Wedge sensor for mounting on the channel floor or the channel wall |
Measurement principle |
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Protection | IP 68 |
Ex-Approval |
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Operating temperature |
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Storage temperature | −30 °C to +70 °C |
Operating pressure | max. 4 bar (combi sensor with pressure cell max. 1 bar) |
Cable lengths | 10/15/20/30/50/100 m pre-configured, can be extended upon request; a pressure compensation element is required if cables longer than 30 m are used with sensors featuring an integrated pressure measurement cell. The compensation element can be used also to connect the extension |
Cable types |
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Outside cable diameter |
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Sensor connection |
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Sensor types |
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Medium-contacting materials | Polyurethane, stainless steel 1.4571, PPO GF30, PA6 Optional: sensor resistant to chemicals made of PEEK, mounting plate made of Hastelloy C-276; mounting plate made of titanium; cable with FEP coating |
Flow velocity measurement |
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Measurement range | −100 cm/s to +600 cm/s |
Quantity of scan layers recorded and computed | max. 32 |
Measurement uncertainty |
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Zero point drift | absolutely stable zero point |
Beam angle | ±5 degrees |
Level measurement water-ultrasonic sensor |
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Measurement range | 0.08 to 500 cm |
Zero point drift | Absolutely stable zero point |
Measurement uncertainty | +/− 2.0 mm or 0.2% of measured range (whichever is greater) |
Level measurement – Pressure |
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Measurement range | 0 to 500 cm |
Zero point drift | max. 0.75 % of final value (0 - 50 °C) |
Measurement uncertainty | standing medium: +/− 0.5 of final value (within a range of 0.05 – 5 m) |
Temperature measurement |
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Measurement range | −20 °C to +50 °C |
Measurement uncertainty | ±0.5 K |
Specifications subject to change.
Technical Instructions | Correlation Sensors (Rev. 09)
Technical instructions for correlation sensors and external electronic box
Installation Instruction | Correlation and Doppler Sensors (Rev. 07)
Installation instruction for save installation
EC type examination certificate sensor type POA, OCL and CS2
EC type examination certificate sensor type POA incl. supplement
Declaration of Conformity Ultrasonic Active Sensors POA / OCL / CS2
Ultraschall-Aktivsensoren POA / OCL / CS2