Kobold DTK Rotating Vane Flow Meter

Kobold DTK Rotating Vane Flow Meter are used to measure and monitor liquids of low viscosity. Its compact design allows it to be used in equipment where space is at a premium.

Specifications

  • Measuring accuracy:
    ± 2% of full scale
    ± 5% of full scale (OEM-version)
  • Linearity: ±1% of full scale
  • Repeatability: ± 0.25%
  • Medium temperature:
    -15°C…+80°C
    -15°C…+140°C (DTK-…0S00)
  • Ambient temperature: -15°C…+60°C
  • Max. pressure: 30 bar
  • Measuring range:0.05 – 0.6 … 1.0 – 12 l/min water
  • Connection: G ¼, ¼” NPT
  • Material: stainless steel
  • pmax: 30 bar
  • tmax: 140 °C
  • Accuracy: ±2 % of full scale Pulse output, analogue output, contacts, digital display

Working Principle

The medium flows through a specially shaped flow housing and causes a vane to rotate. Two magnets in the paddle wheel provide electrical pulses in Hall sensor. The frequency is directly proportional to the flow velocity. The evaluating electronic uses these signals for measurement, monitoring and batching.

Areas of Application

  • Low viscosity liquids
  • Non conductive liquids
  • Volume dosing with external electronics
  • Laundry machines
  • PCB manufacture machines
  • Agricultural machinery

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Kobold DTK Materials

  • Housing: stainless steel 1.3955
  • Orifice: stainless steel 1.4404
  • Axle: stainless steel 1.4404
  • Rotating vane: PVDF
  • Gasket: FPM
  • Connection:
    G¼ female thread
    ¼” NPT female thread
  • Installation position: horizontal
  • Protection: IP65

Electrical Data

1 . OEM frequency output (DTK-…0*00) without CE-sign

  • Power supply: 4-24 VDC
  • Current input: typ. 5 mA
  • Pulse output: NPN, max. 20 mA, open collector
  • Electrical connection:
    1.5 m PVC cable
    1.5 m silicone cable
    plug connector DIN 43650
  1. AUF-4000 (option for DIN plug connector connection)

(option for DIN plug connector connection, can only be calibrated with factory-mounted sensor)

  • Display: 4-segment red LED
  • Temperature range: -20…+80°C
  • Power supply: 24 VDC ± 20%
  • Input: Pulses of DTK (NPN-Hall effect sensor)
  • Output: 4-20 mA, 3-wire
  • Load: 250 Ω
  1. DTK-…F300
  • Power supply: 12-28 VDC
  • Current input: 10 mA
  • Pulse output: PNP, open collector, max. 20 mA
  • Electrical connection: plug connector M12x1
  1. DTK-…F390
  • Power supply: 24 VDC ± 20%
  • Current input: 15 mA
  • Pulse output: PNP, open collector, max. 20 mA
  • Frequency divider: 1…1/128, factory setting
  • Electrical connection: plug connector M12x1
  1. DTK-…L303; DTK-…L343
  • Power supply: 24 VDC ± 20%
  • Output: 0(4)-20 mA, 3-wire
  • Max. load: 500 Ω
  • Electrical connection: plug connector M12x1
  1. Compact electronics
  • Display: 3-segment LED
  • Analogue output: (0) 4…20 mA adjustable, max. 500 Ω
  • Switching outputs: 1 (2) semiconductor PNP or NPN, factory set
  • Contact operation: N/C / N/O contact frequency programmable
  • Setting: via 2 buttons
  • Power supply: 24 VDC ± 20%, 33-wire technology approx. 100 mA
  • Electrical connection: plug connector M12x1

Download Datasheet: Kobold DTK Rotating Vane Flowmeter

Reference: kobold.com

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