Flow Sensors

KDA Doppler Wedge Sensor

Part No. KDA-K/KDS-K

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

Description
  • Neueste intelligente Doppler-Technik der vierten Generation
  • Kostengünstig in der Anschaffung
  • Für alle Kanalquerschnitte geeignet
  • Einfache Montage ohne zusätzliche Einbauten
  • Kabelverlängerungen problemlos möglich
  • Messung in stark verschmutzen und abrasiven Medien
  • Mechanisch geschützte Druckmesszelle im Keilsensor

Die KDA Fließgeschwindigkeitssensoren sind zur kontinuierlichen Messung in leicht bis stark verschmutzen Medien geeignet. Die Keilsensoren sind zur Befestigung auf dem Gerinneboden oder Gerinnewand konzipiert. Die Sensoren bilden in Kombination mit den Messumformern OCM F / OCM FR ein komplettes Durchflussmesssystem.

Typische Anwendungen für den KDA Keilsensor

  • Kläranlage: Zulauf, Ablauf, Zulauf zu den Belebungsbecken, Rücklaufschlamm, Rezirkulation, Überschussschlamm, Ablauf vom Faulbehälter und Flockungsmitteldosierung
  • Stationäre Messungen an Regenbehandlungsanlagen wie RÜB, RRB, RKB
  • Direkteinleiterkontrolle, Fremdwasser- und Leckageermittlung
  • Industrielle Abwassernetze
  • Messkampagnen im Kanalnetz
  • u.v.m.
Technical Data
Allgemein
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 use in 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, 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
  • Combi 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 diameter
  • Combi sensor with pressure measurement: 9.75 mm ±0.25 mm
  • Sensors without pressure measurement: 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 and pipe sensor head)
  • Additionally for sensors with pressure measurement cell: Stainless steel 1.4404 (AlSl 316L), V4A (pressure measuring cell); Viton® Shore A (O-ring)
  • Optional: cable with FEP coating (sensors without pressure measurement only)

Flow velocity measurement

Measurement range

-600 cm/s to +600 cm/s

Measurement uncertainty

±1 % of measurement range end value

Zero point drift

absolutely stable zero point

Beam angle

±5 degrees

Level measurement – Pressure

Measurement range

0,005 to 5 m

Zero point drift

max. 0.75 % of final value (0 – 50 °C)

Measurement uncertainty

standing medium: +/- 0.5 of final value

Temperature measurement

Measurement range

-20 °C to +50 °C

Measurement uncertainty

±0.5 K

Specifications subject to change.

Downloads

Datasheet KDA Sensors

Datasheet for KDA pipe and wedge sensors

Technical Instruction | Doppler Sensors (Rev. 04)

Mounting Instruction | Correlation and Doppler Sensors (Rev. 08)

EC-Type Examination Certificate Compact Doppler

for  KDA-K.. / KDA-R.. / incl. supplements

Declaration of Conformity Compact Doppler Active Sensors

Compact Doppler Active Sensors KDA-K.. / KDA-R.. / KDS-K.. / KDS-R..

Declaration of Conformity "Ex" Compact Doppler Active Sensors

System Products
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Accessories
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