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Selasa, 12 April 2022

Kobold DPL Rotating Vane Flow Meter

Kobold DPL Rotating Vane Flow Meter are used to measure and monitor liquids. Its compact design allows it to be used in equipment where space is at a premium. The large number of pulse evaluation options offered means that the system is suited for a wide range of applications.
Kobold DPL Rotating Vane Flow Meter

Kobold DPL Areas of Application

  • Low viscosity liquids
  • Non-conductive liquids
  • Volume dosing with external electronics
  • Filter aid
  • Beverage industry

Technical Details

  • Accuracy:
    ± 2,5% of full scale
    ± 5% of full scale (OEM version)
  • Linearity: 1% of full scale
  • Medium temperature: -40...+70°C
  • Ambient temperature: -30...+60°C
  • Max. operating pressure:10 bar
  • Protection: IP 65

Kobold DPL Materials

  • Housing: polypropylene
  • Rotating vane: polypropylene
  • Axle/bearing: sapphire
  • Vane mount: polysulfone
  • Gasket: NBR, FPM or EPDM

Operating Principles

The medium flows through a specially shaped flow housing and causes a vane to rotate. This rotary motion is sensed by optoelectronics in a non-contacting manner, and converted to an asymmetric frequency signal or an analogue signal. A frequency divider with symmetrical output is available as an option. The frequency is proportional to the flow velocity. The vane is sapphire-supported: this ensures a high degree of linearity and long service life.


Kobold DPL Electronics

Frequency output (OEM without CE-Sign)

  • Power supply: 4.5 - 12 VDC
  • Supply current: typ. 7 mA
  • Signal amplitude high: approx. power supply
  • Signal amplitude low: ≤0.2 V
  • Transmitter cut-off voltage: 3 V max.
  • Transmitter supply current: 8 - 12 mA
  • Output loss: max. 2.5 mWatt
  • Electrical connection: solder pins
  • Pulse output: NPN, Open Collect., max.10 mA

Frequency output (option frequency divider)

  • Power supply: 24 VDC ±20%
  • Supply current: 40 - 50 mA
  • Signal amplitude high: approx. power supply
  • Signal amplitude low: ≤0.2 V
  • Output loss: max. 2.5 mWatt
  • Electrical connection: plug M12x1 (option: 2 m PVC cable)
  • Division ratio (option): 1...1⁄128 factory set
  • Pulse output: PNP, open collector, max. 20 mA

Analogue output (option plug-on display)

  • Power supply: 24 VDC ±20%
  • Output: 0-20 mA or 4-20 mA, 3-wire technology
  • Max. load: 500 Ω
  • Electrical connection: plug connector M12x1 or DIN 43 650
  • Option: plug-on display (with plug connector DIN 43 650 only)

Compact electronics

  • Display: 3-position LED
  • Analogue output: (0)4...20 mA adjustable, max. 500 Ω
  • Switching outputs: 1 (2) semiconductor PNP or NPN, factory set
  • Contact operation: programmable N/C/ N/O contact
  • Setting: via 2 buttons
  • Power supply: 24 VDC ±20%, approx. 100 mA, 3-wire technology
  • Electrical connection: plug connector M12x1
 
Kobold DPL Rotating Vane Flowmeters 
Pulse Output DPL-..F5

Measuring range: 0.025 - 0.5  ... 1 - 25 l/min water
Connection: G ½ male thread or hose connector
Material: polypropylene
pmax10 bar
tmax: 70°C
Linearity: ±1 %
Pulse output, frequency divider


Kobold DPL Rotating Vane Flowmeters 
Analogue Output DPL-..L3 

Measuring range: 0.025 - 0.5  ... 1 - 25 l/min water
Connection: G ½ male thread or hose connector
Material: polypropylene
pmax10 bar
tmax: 70°C
Linearity: ±1 %
Analogue output


Kobold DPL Rotating Vane Flowmeters 
Analogue Output DPL-..L4 with AUF

Measuring range: 0.025 - 0.5  ... 1 - 25 l/min water
Connection: G ½ male thread or hose connector
Material: polypropylene
pmax: 10 bar
tmax: 70°C
Linearity: ±1 %
Analogue output, digital indicator


 Kobold DPL Rotating Vane Flowmeters 

Compact Electronic DPL-..C3

Measuring range: 0.025 - 0.5  ... 1 - 25 l/min water
Connection: G ½ male thread or hose connector
Material: polypropylene
pmax10 bar
tmax: 70°C
Linearity: ±1 %
Analogue output, contacts NPN / PNP, digital indicator


Kobold DPL Rotating Vane Flowmeters 

Counter DPL with ZED 

Measuring range: 0.025 - 0.5  ... 1 - 25 l/min water
Connection: G ½ male thread or hose connector
Material: polypropylene
pmax10 bar
tmax: 70°C
Linearity: ±1 %
Analogue output, totalizer, contacts, digital indicator


Download Datasheet: Kobold DPL Rotating Vane Flowmeters

Reference : kobold.com

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