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DVE Vortex Flowmeter
Brand: KOBOLD Instruments, Inc
The KOBOLD Vortex Flowmeter DVE 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 DVE 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.
Specifications
Brand
Accuracy
- ± 0.3 % of Full Scale - Gas/Steam (Pressure)
- ± 0.3 % of Reading - Liquids (Density)
- ± 0.5 % of Reading - Gas/Steam (Density)
- ± 1.2 % of Reading - Liquids (Volumetric Flow Rate)
- ± 1.5 % of Reading - Gases & Steam (Volumetric Flow Rate), Liquids (Mass Flow Rate)
- ± 1° C (± 2° F) - Liquids, Gas/Steam
- ± 2 % of Reading - Gas/Steam (Mass Flow Rate)
- ± 3 % of Full Scale - Pressure
Alarm
- Solid State Relay 40 Vdc
Ambient Temperature Range
- -20° to 60° C (-4° to 140° F)
Approvals & Certifications
- ATEX
- IEC Ex
Configuration
- HART Protocols
- Modbus
Display
- Alphanumeric LCD (2-Line 16-Characters), Rotatable in 90° Steps
Environmental Protection
- IP66
Flange Size - 2” (DN 50)
- 2” (DN 50) - ANSI Class 150
- 2” (DN 50) - ANSI Class 300
- 2” (DN 50) - ANSI Class 600
- 2” (DN 50) - PN 16
- 2” (DN 50) - PN 40
- 2” (DN 50) - PN 64
Flow Rate
- 5.2-157 to 284-85,371 m³/hour to Liquids
- 81-938 to 22,435-1,324,739 kg/hour to Saturated Steam
- 89-1,463 to 26,915-2,467,081 Nm³/hour to Air
Maximum System Pressure
- psi: 1,450 (kPa: 10,000, bar: 100)
NPT Connection
- 2” NPT Male
Operating Pressure - Sensor
- psia: 30 to 1,500 (kPa: 200 to 10,000, bar: 2 to 100)
Output
- 4-20 mA Loop Powered for Volumetric meters - Analog
- 4-20 mA / HART
- 50 ms 40 Vdc - Totalizer Pulse
Overpressure & Static Pressure Limits
- psia: 60 to 2,500 (kPa: 400 to 17,500, bar: 4 to 175) - Overload Pressure
Power Requirement
- 12-36 Vdc, 300 mA - Max.
- 12-36 Vdc, Loop Powered
- 85-240 Vac, 50/60 Hz, 5 W
Pressure Type
- Absolute
Process Fitting Details
- Compression Fitting
Programming
- Six Push Buttons
Repeatability
- ± 0.1 % of Rate - Volumetric Flow Rate
- ± 0.1° C (± 0.2° F)
- ± 0.2 % of Rate - Mass Flow Rate
Storage Temperature
- -40° to 65° C (-40° to 150° F)
Temperature Range
- -40° to 260° C (-40° to 500° F)
- Maximum
Wetted Materials
- 316L Stainless Steel, 1.4404
- Dupont Teflon
- Graphite-based Packing