Kobold DRB Turbine Wheel Flowmeter

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.

Kobold DRB Turbine Wheel Flowmeter

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

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

Digital Display DRB with ADI

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 Ω
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 Ω
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 Ω
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