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DRB Turbine Wheel Flowmeter
Brand: KOBOLD Instruments, Inc
The KOBOLD flowmeter model DRB 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 Hall-effect sensor mounted outside the flow area. Various electronics units can be used to display and monitor the volumetric flow.
Specifications
Accuracy
- ± 3 % of Full Scale
Adjustment
- 2 Buttons - Settings
- 4 Buttons - Settings
Ambient Temperature Range
- 80° C (176° F) - Max.
Applications
- Chemical Industry
- Cooling Water Monitoring
- General Mechanical Engineering
- Heavy Goods Industry
- Wastewater Treatment
Axle Material
- Ceramic (DRB-1300)
- HardMetal (DRB-11 & DRB-12)
Bearing Material
- Ceramic (DRB-11 & DRB-12)
- Ceramic / PEEK (DRB-1300)
BSP Connection
- G 1” Female
- G 1/2” Female
- G 1-1/2” Female
- G 2” Female
- G 3” Female
- G 3/4” Female
Consumption
- 10 mA - Power Consumption
- 15 mA - Power Consumption
- 170 mA - Max.
Display
- 2 x 8-Digit LCD Display
- 240° Display - Moving Coil Instruments
- 3-Digit LED Display
- 5-Digits Digital Display
- Bar Graph
Electrical Connectors
- Changeover Contact - Switching Output
- DIN 43650
- Plug Connector M12 x 1
- Pluggable Terminal Block Via Cable Gland
Electrical Contacts
- Normally Closed
- Normally Open
Enclosure, Body Material
- 304 Stainless Steel (DRB-W)
- 316Nb Stainless Steel
- Brass
Environmental Protection
- IP65
Flow Rate
- 10.59 to 1,589 scfh (5 to 750 L/minute) to Water
Frequency
- 40 to 70 Hz
Function
- Flow Monitor
- Reset
Loop Resistance
- 250 ohms - Max.
- 500 ohms - Max.
Materials of Construction
- PVDF: Turbine Wheel
Maximum System Pressure
- psi: 232.1 (bar: 16, kPa: 1,600)
NPT Connection
- 1” NPT Female
- 1/2” NPT Female
- 1-1/2” NPT Female
- 2” NPT Female
- 3” NPT Female
- 3/4” NPT Female
Output
- 0-10 V
- 0-20 mA
- 25 mA - Max.
- 250 Vac, Max.
- 30 Vdc / 5 A, Max.
- 4-20 mA
- 5 A - 2 Switching Outputs
- Relay - Switching OutPut
- Relay x 2
Pipe Connection
- 1” Pipe - DN 25 Nominal Pipe Size
- 1-1/2” Pipe - DN 40 Nominal Pipe Size
- 2” Pipe - DN 50 Nominal Pipe Size
- 3” Pipe - DN 80 Nominal Pipe Size
Power
- 500 W, Max.
Process Temperature
- 80° C (176° F) - Max.
Seat / Seal Material
- FPM: Stainless Steel Version
- NBR: Brass Version
Supply Voltage
- 100 to 240 Vac ± 10 %
- 10-40 Vdc
- 12-28 Vdc
- 18-30 Vac
- 24 Vdc ± 20 %
Version / Leadwires
- 3-Wire Technology - Supply
