Kobold Flowmeter, DVH
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DVH Vortex Flowmeter

Brand: KOBOLD Instruments, Inc
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The KOBOLD Vortex Flowmeter DVH utilizes three primary sensing elements: a vortex shedding velocity sensor, a RTD temperature sensor and a solid-state pressure transducer to measure the mass flow rate of gases, liquids and steam. 

Systems that use external process measurements may not provide adequate compensation for the fact that process conditions can change radically between the point of velocity measurement and the point where upstream or downstream pressure and temperature measurements are being made. 

Because the DVH multivariable flow meter measures all of these parameters in a single location, it delivers a more accurate process measurement. Integrating multivariable output capability with a single line penetration also simplifies system complexity and helps reduce initial equipment cost, installation cost and maintenance costs. 

Advantages of the DVH Vortex Flow Meter:
  • DVH-V provides cost effective volumetric flow monitoring solution for most liquids
  • DVH-T incorporates temperature sensing to provide a compensated mass flow reading of saturated steam
  • DVH-P multivariable meter delivers mass flow, temperature, pressure and density readings
  • Connections: ANSI 1/2" up to ANSI 8", DN 15 up to DN 200
  • Easy to install and commission
  • Field-configurable ranges, outputs and displays
  • HART® Protocol
  • FM-approved, IEC Ex / ATEX

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Specifications

Brand

Accuracy

  • ± 0.3 % of Full Scale (Pressure) - Liquids & Gas/Steam
  • ± 0.3 % of Reading (Density) - Liquids
  • ± 0.5 % of Reading (Density) - Gas/Steam
  • ± 0.7 % of Rate - Volumetric Flow Rate for Liquids
  • ± 1 % - Mass Flow Rate for Liquids & Volumetric Flow Rate for Gas/Steam
  • ± 1.5 % of Rate - Mass Flow Rate for Gas/Steam
  • ± 1° C (± 2° F) - Liquids & Gas/Steam

Ambient Temperature Range

  • -20° to 60° C (-4° to 140° F)

Approvals & Certifications

  • ATEX
  • IEC Ex

Communication

  • HART

Consumption

  • 2 W

Display

  • 2 Line x 16-Character Digital LCD

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# ANSI
  • 1-1/2” (DN 40) - 300# ANSI
  • 1-1/2” (DN 40) - 600# ANSI
  • 1-1/2” (DN 40) - PN 16
  • 1-1/2” (DN 40) - PN 40
  • 1-1/2” (DN 40) - PN 64

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# ANSI
  • 1” (DN 25) - 300# ANSI
  • 1” (DN 25) - 600# ANSI
  • 1” (DN 25) - PN 16
  • 1” (DN 25) - PN 40
  • 1” (DN 25) - PN 64

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 15) - 150# ANSI
  • 1/2” (DN 15) - 300# ANSI
  • 1/2” (DN 15) - 600# ANSI
  • 1/2” (DN 15) - PN 16
  • 1/2” (DN 15) - PN 40
  • 1/2” (DN 15) - PN 64

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ANSI
  • 2” (DN 50) - 300# ANSI
  • 2” (DN 50) - 600# ANSI
  • 2” (DN 50) - PN 16
  • 2” (DN 50) - PN 40
  • 2” (DN 50) - PN 64

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ANSI
  • 3” (DN 80) - 300# ANSI
  • 3” (DN 80) - 600# ANSI
  • 3” (DN 80) - PN 16
  • 3” (DN 80) - PN 40
  • 3” (DN 80) - PN 64

Flange Size - 3/4” (DN 20)

  • 3/4” (DN 20) - 150# ANSI
  • 3/4” (DN 20) - 300# ANSI
  • 3/4” (DN 20) - 600# ANSI
  • 3/4” (DN 20) - PN 16
  • 3/4” (DN 20) - PN 40
  • 3/4” (DN 20) - PN 64

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ANSI
  • 4” (DN 100) - 300# ANSI
  • 4” (DN 100) - 600# ANSI
  • 4” (DN 100) - PN 16
  • 4” (DN 100) - PN 40
  • 4” (DN 100) - PN 64

Flange Size - 6” (DN 150)

  • 6” (DN 150) - 150# ANSI
  • 6” (DN 150) - 300# ANSI
  • 6” (DN 150) - 600# ANSI
  • 6” (DN 150) - PN 16
  • 6” (DN 150) - PN 40
  • 6” (DN 150) - PN 64

Flange Size - 8” (DN 200)

  • 8” (DN 200) - 150# ANSI
  • 8” (DN 200) - 300# ANSI
  • 8” (DN 200) - 600# ANSI
  • 8” (DN 200) - PN 16
  • 8” (DN 200) - PN 40
  • 8” (DN 200) - PN 64

Operating Pressure

  • bar: 02 to 100
  • kPa: 200 to 10,000
  • psi: 29.01 to 1,450
  • psia: 29 to 1450 (kPa: 200 to 10,000, bar: 2 to 100)

Output

  • 40 Vdc - Alarm
  • 4-20 mA Loop Powered - Volumetric meters
  • Solid State Relay

Packing Material

  • Dupont Teflon - Wetted Materials
  • Graphite - Wetted Materials

Pipe Size

  • 1/2” to 8”

Programming

  • Six Push Buttons

Repeatability

  • ± 0.1 % - Volumetric Flow Rate
  • ± 0.1 % of Full Scale - Pressure (Stability over 12 Month)
  • ± 0.1 % of Reading - Density
  • ± 0.1° C (± 0.2° F)
  • ± 0.2 % of Rate - Mass Flow Rate
  • ± 0.5 % of Full Scale - Pressure
  • ± 0.5° C (± 0.9° F) - Stability over 12 Month

Response Time

  • 50 milliseconds - Totalizer Pulse
  • Adjustable from 1 to 100 seconds

Rotation

  • 90° - Display Rotatable

Storage Temperature

  • -40° to 65° C (-40° to 150° F)

Supply Voltage

  • 100 mA - Max.
  • 12 to 36 Vdc
  • 50/60 Hz
  • 85-240 Vac
  • Loop Powered

Temperature Range

  • -40° to 400° C (-40° to 750° F)

Wetted Materials

  • 316L Stainless Steel
  • Dupont Teflon

Documentation

Data Sheets

Approvals

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