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Kobold DRB Turbine Wheel Flowmeter

Descriptions

Kobold DRB Turbine Wheel Flowmeter is used for measuring and monitoring liquids. The device works according the well-known blade wheel principle. The four vane blade wheel is retained radially in a high quality sapphire bearing. The sensor is supplied ready-to-install with pipe fittings or with weld-on sleeves.

The blade wheel is set in motion by the flowing medium. Magnets are embedded hermetically sealed in the ends of the blade wheels. The magnets generate electrical pulses in a Halleffect sensor mounted outside the flow area. Various electronics units can be used to display and monitor the volumetric flow.

Pulse Analogue Output DRB-..F, DRB-..L
Pulse Analogue Output DRB-..F, DRB-..L

Kobold DRB Fields of Application

  • cooling water monitoring
  • general mechanical engineering
  • waste water treatment
  • heavy goods industry
  • chemical industry

Materials

  • Housing:
    • brass
    • stainless steel 1.4581
    • stainless steel 1.3955 (DRB…W)
  • Seals:
    • brass version: NBR
    • stainless steel version: FPM
  • Turbine wheel: PVDF
  • Axle: hard metal (DRB-11… and DRB-12..) ceramic (DRB-1300..)
  • Bearing: ceramic (DRB-11… and DRB-12..) ceramic/PEEK (DRB-1300..)
Compact Electronic DRB-..C3
Compact Electronic DRB-..C3
Digital Display DRB with ADI
Digital Display DRB with ADI
Dosing Electronic DRB with ZED
Dosing Electronic DRB with ZED

Technical Details

  • Measuring accuracy: ±3% of full scale
  • Process temperature: max. 80°C
  • Ambient temperature: max. 80°C
  • Max. operatingpressure: PN 16 / 20°C
  • Max. pressure loss:
    • DRB-…05: 0.05 bar
    • DRB-…10, DRB-..15: 0.03 bar
    • DRB-…20: 0.04 bar
    • DRB-…25: 0.02 bar
    • DRB-…30: 0.01 bar
  • Protection: IP65

Electronics

Frequency output (..F300)

  • Power supply: 12 – 28 VDC
  • Power consumption: 10 mA
  • Pulse output: PNP, open collector, max. 25 mA
  • Electrical connection: plug connector M12x1

Frequency output with frequency divider

  • Power supply: 24 VDC ±20%
  • Power consumption: 15 mA
  • Pulse output: PNP, open collector, max. 25 mA
  • Electrical connection: plug connector M12x1
  • Division ratio: 1…1/128, factory set

Analogue output (plug-on display option)

  • Power supply: 24 VDC ±20%
  • Output: 0-20 mA or 4-20 mA, 2- or 3-wire
  • Max. load: 500 ?
  • Electrical connection: plug connector M12x1 or DIN 43 650
  • Option: plug-on display (with plug connec. DIN 43 650, 2-wire)

Compact electronics

  • Display: 3-segment LED
  • Analogue output: (0)4…20 mA adjustable, max. 500 W
  • Switching outputs: 1 (2) semiconductor PNP or NPN, factory set
  • Contact operation: N/C/N/O contact programmable
  • Setting: with 2 buttons
  • Supply: 24 VDC ±20%, 3-wire technology, approx. 100 mA
  • Electrical connection: plug connector M12x1

ADI electronics

  • Display: bargraph, 5-digit digital display
  • Analogue output: (0)4…20 mA, 0-10 VDC 2 switching outputs: relay /changeover contact,max. 250 VAC/5A resistive load, max. 30 VDC / 5A
  • Setting: with 4 buttons
  • Power supply: 100…240VAC ±10% or18…30VAC /10…40VDC
  • Electrical connection: pluggable terminal block viacable gland

DRB-…Exxx (Counter electronic)

  • Display: LCD, 2 x 8 digit, illuminated total, part and flow quantities units selectable
  • Analogue output: 0(4)…20 mA adjustable
  • Load: max. 500 ?
  • Switching output: 2 relays, max. 250V/5A/1000 VA
  • Settings: via 4 buttons
  • Functions: reset, Min./Max. memory, flow monitor, monitoring for part and total quantity, language
  • Power supply: 24 VDC ±20%, 3-wire
  • Power consumption: approx. 170 mA
  • Electrical connection: pluggable terminal block via cable gland

DRB-…Gxxx (Dosing electronic)

  • Display: LCD, 2 x 8 digit, illuminated total, part and flow quantities units selectable
  • Analogue output: 0(4)…20 mA adjustable
  • Load: max. 500 ?
  • Switching output: 2 relays, max. 250V/5A/1000 VA
  • Settings: via 4 buttons
  • Functions: dosing (relay S2), start, stop, reset, fine dosing, correction amount, flow switch, total quantity, language
  • Power supply: 24 VDC ±20%, 3-wire
  • Power consumption: approx. 170 mA
  • Electrical connection: pluggable terminal block via able gland

Download Datasheet: Kobold DRB Turbine Wheel Flowmeter

Reference: kobold.com

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