KDA Doppler Wedge Sensor

Combined with transmitter types such as PCM F and OCM F the result is a complete flow measurement system.

Measures: Flow

Industries: Data Centre, Discharge Licence Compliance, Environmental Monitoring, Pharma, Utilities, Wastewater, Water

Brochure

Measure. Monitor. Repeat.

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

Key Features & Benefits

Latest fourth-generation intelligent Doppler technology
Cost-effective pricing
Suitable for all channel cross sections
Easy to install without the need for additional constructions
Cables can be extended without any problems
Measurement in heavily polluted and abrasive media
Built-in pressure cell mechanically protected

KDA Doppler Wedge Sensor

Typical applications for KDA wedge sensors

Wastewater treatment plants: intake, discharge, activated sludge tank intakes, return sludge, recirculation, surplus sludge, digester discharge and flocculant dosage
Permanent measurements on stormwater treatment facilities such as stormwater overflow tanks, rainwater sedimentation and retention tanks
Direct discharge control, infiltration (extraneous water) or leakage detection
Industrial wastewater networks
Measurement campaigns in channel networks
and many more

Product Description
Technical Data
Videos & Downloads

Wedge-shaped flow velocity sensor for channels

Ultrasonic sensors for flow measurement in slight to heavily polluted media. Wedge shape for installation on channel wall or channel bottom

More info

KDA flow velocity sensors are suitable for continuous measurement of slight to heavily polluted media. The wedge-shaped sensors are designed for installation on either the channel wall or the channel bottom. Combined with transmitter types such as PCM F and OCM F the result is a complete flow measurement system.

Technical Data – Doppler & Piezo-Resistive Sensor
Measurement principle	Doppler (flow velocity) Piezo-resistive pressure measurement (level measurement)
Protection	IP 68
Ex-Approval	ATEX: IBExU 07 ATEX 1082 Edition 1 II 2G Ex ib IIB T4 Gb
Operating temperature	-40 °C to +50 °C (also for Ex zone 1)
Storage temperature	-40 °C to +70 °C
Operating pressure	Max. 4 bar (combi sensor with pressure cell max. 1 bar)
Cable lengths	10 / 15 / 20 / 30 / 40 / 50 / 60 / 70 / 80 / 90 / 100 m pre-configured, extendable upon request. Pressure compensation element required for cables >30 m with integrated pressure measurement cell.
Cable types	Combi sensor with pressure: LiYC11Y 2×1.5 + 1x2x0.34 + PA 1.5/2.5 Sensors without pressure: LiYC11Y 2×1.5 + 1x2x0.34
Outside cable diameter	Combi sensor with pressure: 9.75 mm ±0.25 mm Sensors without pressure: 8.4 mm ±0.25 mm
Sensor connection	Cable end pre-configured for connection to OCM F / FR, cable types “K” or “L”
Sensor types	v-sensor with T-compensation v-sensor with T-compensation and h measurement (hydrostatic)
Medium-contacting materials	PVDF (wedge sensor body); stainless steel 1.4571 (ground plate); Polyurethane (cable sheath, screw joint, pipe sensor head) Sensors with pressure measurement cell: Stainless steel 1.4404 (AlSl 316L), V4A (pressure measuring cell); Viton® O-ring Optional: FEP-coated cable (sensors without pressure measurement only)
Flow velocity measurement – Range	-600 cm/s to +600 cm/s
Flow velocity measurement – Uncertainty	±1 % of measurement range end value
Flow velocity – Zero point drift	Absolutely stable zero point
Flow velocity – Beam angle	±5 degrees
Level measurement – Pressure range	0.005 to 5 m
Level measurement – Zero point drift	Max. 0.75 % of final value (0–50 °C)
Level measurement – Uncertainty	±0.5 % of final value (standing medium)
Temperature measurement – Range	-20 °C to +50 °C
Temperature measurement – Uncertainty	±0.5 K