DON Oval Wheel Flowmeter

Brand: KOBOLD Instruments, Inc.

Oval gear flowmeters are categorized as positive displacement flow technology. When liquid flows through this type of positive displacement flowmeter, two oval geared rotors measure a constant volume per rotation within a precisely machined measuring chamber.

With each rotation, a constant volume of liquid is measured. The rotation of the oval gears is sensed via magnets embedded within the rotors.

These magnets transmit a high resolution pulse output. The output signal can be process externally via a remote display controller or PLC or via a variety of output/display options available as accessories attached to the flowmeters.

Specifications

Accuracy

  • ± 0.2 % of Reading - DON-x20 to DON-x60 for Stainless Steel-Rotors
  • ±  0.5 % of Reading - DON-x20 to DON-x60 for PPS-Rotors
  • ±  0.5 % of Reading - DON-x20 to DON-x60 for Stainless Steel-Rotors
  • ±  1  % of Reading - DON-x05 to DON-x15
  • ±  1 % of Reading - DON-x20 to DON-x60 for PPS-Rotors

Ambient Temperature Range

  • 0° to 60° C (32° to 140° F)
  • -20° to 80° C (-4° to 176° F)

Applications

  • Chemical
  • Oil

Approvals & Certifications

  • ATEX
  • Ex

BSP Connection

  • G 1"
  • G 1/2"
  • G 1/4"
  • G 1/8"
  • G 1-1/2"
  • G 2"
  • G 3"
  • G 3/8"
  • G 4"

Cable Entry

  • 1/2" NPT Adapter
  • M20×1.5

Enclosure, Body Material

  • Aluminum
  • Stainless Steel

Environmental Protection

  • IP65
  • IP66
  • IP67

Materials of Construction

  • Polyamide - Cable Connection

Maximum System Pressure

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

NPT Connection

  • 1" NPT
  • 1/2" NPT
  • 1/4" NPT
  • 1/8" NPT
  • 1-1/2" NPT
  • 2" NPT
  • 3" NPT
  • 3/8" NPT
  • 4" NPT

O-Ring Material

  • FKM
  • NBR

Output

  • 4-20 mA - Analog Output

Repeatability

  • ± 0.03  %

Seat / Seal Material

  • EPDM

Supply Voltage

  • 16-32 Vdc

Temperature Range

  • 150° C (302° F) - Maximum
  • -20° to 100° C (-4° to 212° F) - NBR O-Ring Material Temperature
  • -20° to 150° C (-4° to 302° F) - FKM O-Ring Material Temperature

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