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Kobold DRH Rotating Vane Flow Meter

Description

Kobold DRH Rotating Vane Flow Meter are used for measuring and monitoring low viscous liquids. Series DRH flow meters are working according the well-known rotating vane principle. A magnet fitted in the vane and hermetically sealed from the medium transfers non-contacting the rotary motion to a Hall-effect sensor mounted in the housing.

The sensor converts the rotary motion which is proportional to the flow to a frequency signal. A series-connected electronics unit converts the signal to an analogue output, limit contacts or display. These devices can be adapted to prevailing plant conditions with the 360ยฐ rotatable screw connections.

Kobold DRH Fields of Application

  • Cooling water monitoring
  • Agricultural machinery
  • PCB board

Kobold DRH Specification

  • Measuring range: 0.2 โ€“ 8 โ€ฆ 2.5 โ€“ 50 l/min water
  • Connection: G ?, G 1, ?โ€ NPT, 1โ€ณ NPT
  • Material: brass, stainless steel, POM, PVDF
  • pmax: 100 bar
  • tmax: 80 ยฐC
  • Accuracy: ยฑ2.5 % of full scale
  • Pulse output, analogue output, contacts, digital / pointer indicator

 

Kobold DRH Rotating Vane Flowmeters
Rotating Vane Flowmeter โ€“ Analogue Output DRH with AUF

Measuring range: 0.2 โ€“ 8 โ€ฆ 2.5 โ€“ 50 l/min water
Connection: G ?, G 1, ?โ€ NPT, 1โ€ณ NPT
Material: brass, stainless steel, POM, PVDF
pmax: 100 bar
tmax: 80ยฐC
Accuracy: ยฑ2.5 % of full scale
Analogue output, digital indicator

Kobold DRH Rotating Vane Flowmeters
Rotating Vane Flowmeter โ€“ Pulse or Analogue Output DRH-..F, DRH-..L

 

Measuring range: 0.2 โ€“ 8 โ€ฆ 2.5 โ€“ 50 l/min water
Connection: G ?, G 1, ?โ€ NPT, 1โ€ณ NPT
Material: brass, stainless steel, POM, PVDF
pmax: 100 bar
tmax: 80ยฐC
Accuracy: ยฑ2.5 % of full scale
Pulse output, analogue output

 

Kobold DRH Rotating Vane Flowmeters
Rotating Vane Flowmeter โ€“ Compact Electronic DRH-..C3

 

Measuring range: 0.2 โ€“ 8 โ€ฆ 2.5 โ€“ 50 l/min water
Connection: G ?, G 1, ?โ€ NPT, 1โ€ณ NPT
Material: brass, stainless steel, POM, PVDF
pmax: 100 bar
tmax: 80ยฐC
Accuracy: ยฑ2.5 % of full scale
Analogue output, contacts NPN / PNP, digital indicator

 

Kobold DRH Rotating Vane Flowmeters
Rotating Vane Flowmeter โ€“ Counter or Dosing DRH-..E/-..G

 

Measuring range: 0.2 โ€“ 8 โ€ฆ 2.5 โ€“ 50 l/min water
Connection: G ?, G 1, ?โ€ NPT, 1โ€ณ NPT
Material: brass, stainless steel, POM, PVDF
pmax: 100 bar
tmax: 80ยฐC
Accuracy: ยฑ2.5 % of full scale
Analogue output, totalizer, contacts, digital indicator

DRH-โ€ฆE14R, DRH-โ€ฆG14 cable connection

Wire numberDRH-โ€ฆE14R

Counter electronics

DRH-โ€ฆG14R

Dosing electronics

1+24 VDC+24 VDC
2GNDGND
34-20 mA4-20 mA
4GNDGND
5do not connectControl 1*
6Reset part quantityControl 2*
7Relay S1Relay S1
8Relay S1Relay S1
9Relay S2Relay S2
10Relay S2Relay S2

Control 1 <-> GND: Start-Dosing
Control 2 <-> GND: Stop-Dosing
Control 1 <-> Control 2: Reset-Dosing

Technical Details

  • Material combinations: see order details
  • Max. operating pressure: see order details
  • Max. temperature: see order details
  • Measuring accuracy:
    ยฑ2.5% of full scale
    ยฑ5% of full scale (DRH-โ€ฆF300)
  • Electrical connection: plug connector DIN 43 650, plug connector M12x1, cable
  • Pressure loss: max. 1 bar at max. range
  • Protection: IP 65

Electronics

1. Frequency output (โ€ฆF300)

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

2. Frequency output with frequency divider

  • Power supply: 24 VDC ยฑ20%
  • Power consumption: 15 mA
  • Pulse output: PNP, open collector, max. 25 mA
  • Electrical connection: plug connector M12x1
  • Division ratio: 1โ€ฆ 1/128, factory set

3. Analogue output (Option plug-on display

  • Power supply: 24 VDC ยฑ20%
  • Output: 0-20 mA or 4-20 mA,
  • 2-wire or 3-wire
  • Max. load: 500 ?
  • Electrical connection: plug connector M12x1 or DIN 43650
  • Option: plug-on display (with plug connector DIN 43650 and output 4-20 mA only), 2-wire

4. Compact electronics

  • Display: 3-segment LED
  • Analogue output: (0)4โ€ฆ20 mA adjustable, max. 500 W
  • Switching outputs: 1 (2) semiconductor PNP or NPN factory set
  • Contact operation: N/C / N/O contact frequency programmable
  • Setting: with 2 buttons
  • Power supply: 24 VDC ยฑ20%, 3-wire technology approx. 100 mA
  • Electrical connection: plug connector M12x1

DRH-โ€ฆExxx (Counter electronics)

  • Display: LCD, 2 x 8 digit, illuminated total, part and flow quantities, units selectable
  • Quantity meter: 8-digit
  • Analogue output: (0)4โ€ฆ20 mA adjustable
  • Load: max. 500 ?
  • Switching output: 2 relays, max. 30 VAC/DC /2A/60 VA
  • Settings: via 4 buttons
  • Functions: reset, MIN/MAX memory, flow monitor, monitoring for part and total quantity, language
  • Power supply: 24 VDC ยฑ20%, 3-wire
  • Power consumption: approx. 150 mA
  • Electrical connections: cable connection or M 12 plug

More technical details see data sheet ZED

DRH-โ€ฆGxxx (Dosing electronics)

  • Display: LCD, 2 x 8 digit, illuminated dosing-, total-, and flow quantity, units selectable
  • Quantity meter: 8-digit
  • Dosage: 5-digit
  • Analogue output: (0)4โ€ฆ20 mA adjustable
  • Load: max. 500 ?
  • Switching output: 2 relays, max. 30 VAC/DC /2A/60 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 ยฑ20%, 3-wire
  • Power consumption: approx. 150 mA
  • Electrical connection: cable connection or M12 plug

More technical details see data sheet ZED

Download Datasheet: Kobold DRH Rotating Vane Flowmeters

Reference : kobold.com

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