DMH Electromagnetic Flowmeter

Brand: KOBOLD Instruments, Inc.

The KOBOLD DMH flowmeter is used to measure and monitor the volume flow rate of fluids, pulps, pastes and other electrically conductive materials, without loss of pressure.

When an electrically conductive medium passes through a directional magnetic field, a voltage is induced in accordance with Faraday's Law of Induction. The size of this measurement voltage is proportional to the mean rate of flow and consequently also to the volume flow rate.

A flowmeter consists of a sensor that picks up the measuring signal generated from the induced voltage, and a transducer that converts this signal into a standardized output signal (4-20 mA or pulses).

The measurement transducer can be affixed to the sensor or mounted separately. Pressure, temperature, density and viscosity do not affect the volume measurement. Solid fractions and gas bubbles should be avoided.
Features
  • Great Choice of Linings
  • Stainless Steel, Hastelloy®, Tantalum or Platinum Electrodes
  • Wide Variety of Process Connections
  • Can be Used in Rough Ambient Conditions

Specifications

Accuracy

  • ± 0.15 % of Reading, ± 0.005 % × Qmax
  • ± 0.3 % of Reading ± 0.01 % × Qmax

Ambient Temperature Range

  • -20° to 60° C (-4° to 140° F)

Applications

  • Acids & Alkalis
  • Drinking Water
  • Pastes
  • Wastewater

Communication

  • HART

Electromagnetic Rating

  • EMV Directive 2004/108/EG

Enclosure, Body Material

  • Enamelled Die Cast Aluminum
  • Enamelled Steel
  • Stainless Steel

Environmental Protection

  • IP67
  • IP68

Flange Size - 1" (DN 25)

  • 1" (DN 25) - PN 40

Flange Size - 1/2" (DN 15)

  • 1/2" (DN 15) - PN 40

Flange Size - 10" (DN 250)

  • 10" (DN 250) - PN 10
  • 10" (DN 250) - PN 40

Flange Size - 1-1/2" (DN 40)

  • 1-1/2" (DN 40) - PN 40

Flange Size - 1-1/4" (DN 32)

  • 1-1/4" (DN 32) - PN 40

Flange Size - 12" (DN 300)

  • 12" (DN 300) - PN 10
  • 12" (DN 300) - PN 16
  • 12" (DN 300) - PN 40

Flange Size - 14" (DN 350)

  • 14" (DN 350) - PN 10
  • 14" (DN 350) - PN 16

Flange Size - 16" (DN 400)

  • 16" (DN 400) - PN 10
  • 16" (DN 400) - PN 16

Flange Size - 18" (DN 450)

  • 18" (DN 450) - PN 10
  • 18" (DN 450) - PN 16

Flange Size - 2" (DN 50)

  • 2" (DN 50) - PN 40

Flange Size - 20" (DN 500)

  • 20" (DN 500) - PN 10
  • 20" (DN 500) - PN 16

Flange Size - 2-1/2" (DN 65)

  • 2-1/2" (DN 65) - PN 16
  • 2-1/2" (DN 65) - PN 40

Flange Size - 24" (DN 600)

  • 24" (DN 600) - PN 10
  • 24" (DN 600) - PN 16

Flange Size - 28" (DN 700)

  • 28" (DN 700) - PN 6

Flange Size - 3" (DN 80)

  • 3" (DN 80) - PN 16
  • 3" (DN 80) - PN 40

Flange Size - 3/4" (DN 20)

  • 3/4" (DN 20) - PN 40

Flange Size - 3/8" (DN 10)

  • 3/8" (DN 10) - PN 16

Flange Size - 32" (DN 800)

  • 32" (DN 800) - PN 6

Flange Size - 36" (DN 900)

  • 36" (DN 900) - PN 6

Flange Size - 4" (DN 100)

  • 4" (DN 100) - PN 16

Flange Size - 40" (DN 1000)

  • 40" (DN 1000) - PN 6

Flange Size - 48" (DN 1200)

  • 48" (DN 1200) - PN 6

Flange Size - 5" (DN 125)

  • 5" (DN 125) - PN 16
  • 5" (DN 125) - PN 40

Flange Size - 6" (DN 150)

  • 6" (DN 150) - PN 16
  • 6" (DN 150) - PN 40

Flange Size - 8" (DN 200)

  • 8" (DN 200) - PN 10
  • 8" (DN 200) - PN 16
  • 8" (DN 200) - PN 40

Flow Rate

  • 0.05 to 40,376 m³/hour

Function

  • Empty Pipe Recognition
  • FLushing Flow Monitoring

Nominal Pressure

  • psi: 87.02 to 580.2 (kPa: 600 to 4,000, bar: 6 to 40)

Output

  • 1 × 0(4)-20 mA, Active, Galvanically Isolated - Analog Output
  • 24 V, 60 mA Passive, Galvanically Isolated - Pulse Output

Process Connection Material

  • 304 Stainless Steel
  • Steel

Process Temperature

  • -20° to 150° C (-4° to 302° F)

Sensor / Probe Material

  • Hard & Soft Rubber - Linings
  • Hastelloy C4
  • PFA - Linings
  • Platinum
  • PTFE - Linings
  • Stainless Steel - Electrodes
  • Tantalum

Supply Voltage

  • 10 VA
  • 115 Vac
  • 230 Vac
  • 24 Vdc 10 W
  • 50/60 Hz

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