CSM Correlation Wedge Sensor

The Mini sensor family provides the best possible sensors to detect lowest flow levels e.g. for infiltration measurement (extraneous water) or indirect discharge measurement. The sensors use the proven ultrasonic cross correlation method patented by NIVUS. This method allows to detect and to indicate flow profiles starting at flow levels as low as a few centimeters. Due to their shape the sensors are particularly suitable for small geometries and help to avoid backwater effects, the risk of build-up and clogging

Measures: Flow

S-AS_TB_Rev12_en (4)
Technical Instruction

Measure. Monitor. Repeat.

For better insights, better decision-making and better process performance.

Key Benefits & Features

  • Infiltration measurement (extraneous water)
  • Influent control
  • Billing measurement places
  • Discharge constructions
  • Precipitation discharge measurements

CSM Correlation Sensor (2)

Typical applications for Mini sensors

  • Measurement campaigns in channel networks
  • Small WWTPs: intake and discharge
  • Industrial wastewater networks
  • Particularly suitable for channels featuring low flow levels

Measurements starting at flow levels of 3 cm

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

More info

The Mini sensor family provides the best possible sensors to detect lowest flow levels e.g. for infiltration measurement (extraneous water) or indirect discharge measurement.
The sensors use the proven ultrasonic cross correlation method patented by NIVUS. This method allows to detect and to indicate flow profiles starting at flow levels as low as a few centimeters.

Due to their shape the sensors are particularly suitable for small geometries and help to avoid backwater effects, the risk of build-up and clogging.

 

Technical Data – Wedge / Flow Profile Sensor
Measurement principleCorrelation with measurement of the real flow profile
Measurement frequency1 MHz
ProtectionIP 68
Ex-ApprovalII 2G Ex ib IIB T4 Gb (ATEX)
Ex ib IIB T4 Gb (IECEx)
Operating temperatureWedge sensor without hydrostatic level measurement:
−20 °C up to +70 °C for up to 15 min operating time
−20 °C up to +65 °C when used continuously
−40 °C up to +80 °C in Ex Zone 1

Wedge sensor with hydrostatic level measurement:
−20 °C up to +50 °C
−40 °C up to +80 °C in Ex Zone 1

Storage temperature−30 °C to +70 °C
Operating pressureMax. 4 bar (combi sensor with pressure cell max. 1 bar)
Medium-contacting materialsPolyurethane, stainless steel 1.4571, PPO GF30, PA
Pressure compensation element (CSM-D only): POM-C, PMMA, PA, stainless steel 1.4571
Flow velocity measurement – Measurement range−350 cm/s to +600 cm/s
Max. Measuring spanΔ 700 cm/s
Quantity of scan layers recordedMax. 32
Zero point driftAbsolutely stable zero point
Error limits (per scan layer)< 1 % of measurement value (v > 1 m/s)
< 0.5 % of measurement value +5 mm/s (v < 1 m/s)
Beam angle±5 degrees
Level measurement – PressureMeasurement range: 0 to 500 cm
Zero point drift: max. 0.75 % of final value (0 – 50 °C)
Measurement uncertainty: ≤ 0.5 % of final value
Temperature measurementMeasurement range: −40 °C to +80 °C
Measurement uncertainty: ±0.5 K

Technical Instructions S-AS_TB_Rev12_en (4)
Mounting Instruction KK-Doppler_MA_Rev08_en (4)
EU Type examination certificate CE_CSM-_CSP-_DSM-_OCL-LM_Ex_2024-07-25
IECEx Certificate of ConformitySensorfamily_Mini_IECEx_TUN_18.0023_002_AMR

Why Choose Process Networks?

ISO-Certified Quality

Our ISO 9001:2015 quality management system ensures full traceability across design, installation, calibration and support.

Technical Expertise You Can Reach

When you contact us, you speak directly to an expert — not a call centre.

Trusted Supplier Partnerships

Exclusive access to premium instrumentation from leading global manufacturers in Germany, Japan, the US and across Europe.

Long-Term Support & SLAs

Most customers stay with us for years because we stay with them providing ongoing maintenance, calibration and on-site service.

Proven Field Experience

Thousands of instruments installed and tens of thousands points monitored daily on systems we support.

Speak to a technical expert about this product

Our experts will guide you to the right solution whether you need a single sensor or a site-wide monitoring system.

Office

Process Networks Ltd,
Unit K20 Drinan Enterprise Centre,
Swords, Co. Dublin, K67 NN59

Call

(01) 211 8414

Email

info@processnetworks.ie

    By submitting your enquiry, you agree to receive updates from Process Networks in accordance with our Privacy Policy.