Flow Sensors

CS2 Correlation Wedge Sensor

Part No. CS2-V2

Large measurement range for high flow levels

Ultrasonic sensors for flow measurement with very high accuracy in slight to heavily polluted media. For installation on channel wall or channel bottom

  • 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

 

 

 

 

 

Common
Measurement principleUltrasonic Cross Correlation with digital pattern detection (flow velocity) Ultrasonic transit time (level measurement) Piezo-resistive pressure measurement (level measurement)
1 MHz
Sensor typesv-sensor with T-compensation v-sensor with T-compensation and h measurement (water-ultrasound) v-sensor with T-compensation and h measurement (hydrostatic) v-sensor with T-compensation and 2 x h measurement (water-ultrasound + hydrostatic)
ProtectionIP 68
Ex-ApprovalII 2 G Ex ib IIB T4 Gb (ATEX) Ex ib IIB T4 Gb (IECEX)
Operating temperature-20 °C to +50 °C -20 °C to +40 °C if using the sensors in Ex Zone 1
Storage temperature-30 °C to +70 °C
Operating pressuremax. 4 bar (combi sensor with pressure cell max. 1 bar)
Cable lengths10/15/20/30/50/100 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 typesCombi sensor with pressure measurement: LiYC11Y 2x1.5 + 1 x 2 x 0.34 + PA 1.5/2.5 Sensors without pressure measurement: LiYC11Y 2 x 1.5 + 1 x 2 x 0.34
Outside cable diameterCombi sensor with pressure measurement: 9.75 mm ±0.25 mm Sensors without pressure measurement: 8.4 mm ±0.25 mm
Sensor connectionCable end pre-configured for connection to OCM CF Cable end with plug for connection to PCM 4 and PCM Pro Cable end with plug and pressure compensation element (sensors with pressure measurement cell only) for connection to PCM 4 and PCM Pro
- Wedge sensor for installation on channel bottom or channel wall - Pipe sensor for installation in pipes with sensor screw joint and retaining element
Medium-contacting materialsPolyurethane, 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
Measurement range-100 cm/s to +600 cm/s
Number of scan layersmax. 16
Measurement uncertainty for 0.05≤|V|≤0.5 m/s: E_v=0.5/|V| [%]
Zero point driftabsolutely stable zero point
Beam angle±5 degrees
Level measurement water-ultrasonic sensor
Measurement range0.08 to 500 cm
Zero point driftAbsolutely stable zero point
Measurement uncertainty +/- 2.0 mm or 0.2% of measured range (whichever is greater)
Level measurement – Pressure
Measurement range0 to 500 cm
Zero point driftmax. 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
Measurement range-20 °C to +60 °C
Measurement uncertainty ±0.5 K

Specifications subject to change.

Technical Instructions Correlation Sensors

Instruction Manuals / Technical Information English

Technical instructions for correlation sensors and external electronic box

Installation Instruction for Correlation and Doppler Sensors

Instruction Manuals / Technical Information English

Installation instruction for save installation 

EC type examination certificate sensor type POA

Certificates English

EC type examination certificate sensor type POA incl. supplement

IECEx Certificate of Conformity

Certificates English

EU Declaration of Conformity Ultrasonic Active Sensors POA / OCL / CS2

Certificates German English

Ultraschall-Aktivsensoren POA / OCL / CS2

EU Declaration of Conformity "Ex" - Ultrasonic Active Sensors POA / OCL / CS2

Certificates German English

"Ex" - Ultraschall-Aktivsensoren POA / OCL / CS2

 

Tender Specification CS2 Sensor

Texts for Tender Specification English
  • NivuFlow750 Messumformer für hochgenaue Durchflussmessung

    NivuFlow 750 Flow Meter

    For ultrasonic flow measurement of slight to heavily polluted media in part filled and full pipes...
    For ultrasonic flow measurement of slight to heavily polluted media in part filled and full pipes and channels. Best possible results even under difficult conditions.
  • NIVUS PCM Pro Ex Messumformer für Durchflussmessung

    PCM Pro Flow Meter

    For portable ultrasonic flow measurement of slight to heavily polluted media in part filled and full...
    For portable ultrasonic flow measurement of slight to heavily polluted media in part filled and full pipes and channels. Best possible results even under difficult conditions
  • NIVUS Messumformer PCM 4 für Durchflussmessung

    PCM 4 Flow Meter

    For portable ultrasonic flow measurement of slight to heavily polluted media in part filled and full...
    For portable ultrasonic flow measurement of slight to heavily polluted media in part filled and full pipes and channels. Best possible results even under difficult conditions.
Flow Measurement in Channel with Dry Weather Flume

Channel Dry Weather Flume

Segmented rectangular channel, 3 m width, made of concrete. Part filled. ...
Segmented rectangular channel, 3 m width, made of concrete. Part filled. Channel with dry weather flume and side space.
Durchflussmessung bei unsymmetrischem Strömungsprofil

Durchflussmessung eines unsymmetrisches Strömungsprofil

Rechteckkanal aus Beton, 2,5 m Breite. Teilfüllung. Wechselnde Unsymmetrien in...
Rechteckkanal aus Beton, 2,5 m Breite. Teilfüllung. Wechselnde Unsymmetrien in der Strömung
Flow Measurement in large WWTP Intake Area

Flow Large Intake Area

Detection of flow rate in structured U profile 2,5 x 2,5 m with dry weather...
Detection of flow rate in structured U profile 2,5 x 2,5 m with dry weather flume, Partially filled and very high discharge dynamics.
Flow Measurement to Ensure Minimum Discharge

Flow Measurement to Ensure Minimum Discharge

Flow measurement to ensure a minimum flow volume of 150 l/s for feeding into the...
Flow measurement to ensure a minimum flow volume of 150 l/s for feeding into the drinking water production area of a city of over a million inhabitants.
Flow Measurement on Flood Polder

Flow Measurement on Flood Polder

Detection of flood polder flow volumes of a large European river. ...
Detection of flood polder flow volumes of a large European river.
Flow Measurement in Plastic Pipe

Flow Measurement Big Pipe

Cooling water (seawater) with max. flow rate of 60.00³/h from power plant. ...
Cooling water (seawater) with max. flow rate of 60.00³/h from power plant.
  • Rohrmontageset für eine schnelle und einfache Montage für Keilsensoren

    Wedge Sensor Accessories

    The mounting accessories allow the quick and easy installation of wedge sensors. The solid...
    The mounting accessories allow the quick and easy installation of wedge sensors. The solid high-quality accessories are made of stainless steel 1.4571 and plastic and are suitable for installation in abrasive media.
  • Überspannungsschutz für Messgeräte und Sensoren

    Overvoltage Protection Unit

    DataPro, SonicPro and EnerPro surge arrestors – highly stressable and particularly adjusted to...
    DataPro, SonicPro and EnerPro surge arrestors – highly stressable and particularly adjusted to sensors and transmitters. Maximum operational safety at small dimensions.
  • Overvoltage protection enclosure

    BSG 12, 32, 42 and BSG 20 Ex - for DataPro, SonicPro, EnerPro and IsoPro surge arrestors
    BSG 12, 32, 42 and BSG 20 Ex - for DataPro, SonicPro, EnerPro and IsoPro surge arrestors
  • POA Correlation Wedge Sensor

    Ultrasonic sensors for flow measurement with very high accuracy in slight to heavily polluted media....
    Ultrasonic sensors for flow measurement with very high accuracy in slight to heavily polluted media. For installation on channel wall or channel bottom
  • Mini Correlation Sensor

    Ultrasonic sensors for flow measurement with very high accuracy in slight to heavily polluted media....
    Ultrasonic sensors for flow measurement with very high accuracy in slight to heavily polluted media. For installation on channel wall or channel bottom

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