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) - Maximum

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 - Maximum

Display

  • 2 × 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 M12×1
  • 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 - Maximum
  • 500 ohms - Maximum

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 - Maximum
  • 250 Vac, Maximum
  • 30 Vdc / 5 A, Maximum
  • 4-20 mA
  • 5 A - 2 Switching Outputs
  • Relay - Switching OutPut
  • Relay × 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, Maximum

Process Temperature

  • 80° C (176° F) - Maximum

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

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