DRH Rotating Vane Flowmeter

Brand: KOBOLD Instruments, Inc.

KOBOLD rotating vane flow meters series DRH 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 Analog output, limit contacts or display. These devices can be adapted to prevailing plant conditions with the 360° rotatable screw connections.

Specifications

Accuracy

  • ± 2.5 % of Full Scale
  • ± 5 % of Full Scale (DRH-F300)

Applications

  • Agricultural Machinery
  • Cooling Water Monitoring
  • PCB Board Industry

Axle Material

  • Ceramic

Bearing Material

  • PTFE

BSP Connection

  • G 1" Female
  • G 3/8" Female

Consumption

  • 10 mA - Power Consumption
  • 15 mA - Power Consumption

Cover - for Local Enclosure

  • 316 Stainless Steel
  • Brass, Nickel-Plated
  • PMMA
  • POM
  • PVDF

Display

  • 240° Display Moving-Coil Instrument
  • 3-Segment LED Display

Electrical Connectors

  • Cable
  • Plug Connector DIN 43650
  • Plug Connector M12×1

Electrical Contacts

  • Normally Closed Frequency Programmable - Contact Operation
  • Normally Open Frequency Programmable - Contact Operation

Enclosure, Body Material

  • 316L Stainless Steel
  • Aluminum
  • Brass, Nickel-Plated
  • POM
  • PVDF

Environmental Protection

  • IP65

Flow Rate

  • 0.2 to 50 L/minute for Water

Frequency

  • 63 to 220 Hz

Loop Resistance

  • 250 ohms - Maximum
  • 500 ohms - Maximum

Materials of Construction

  • PTFE - Rotating Vane

Maximum System Pressure

  • psi: 1,450 (kPa: 10,000, bar: 100)

NPT Connection

  • 1" NPT Female
  • 3/8" NPT Female

Orifice Size

  • 0.039" to 0.39" (1 to 10 mm)

Output

  • 0-20 mA
  • 25 mA - Maximum
  • 4-20 mA

Power

  • 500 W - Analog Output

Power Requirement

  • 12-28 Vdc - Power Supply
  • 24 Vdc ± 20 % - Power Supply

Seat / Seal Material

  • FPM
  • NBR

Switch Type

  • Transistor - 1 (2) Semiconductor NPN: Switching Outputs
  • Transistor - 1 (2) Semiconductor PNP: Switching Outputs
  • Transistor - Open Collector: Pulse Output
  • Transistor - PNP: Pulse Output

Temperature Range

  • Maximum

Version / Leadwires

  • 2-Wire
  • 3-Wire

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