Durchfluss

Vortex Flow Meter
Inline-Version Typ: DVH

Multivariable

Our vortex flowmeter provides accurate and reliable flow measurement. In addition to the high-precision velocity sensor, the flowmeter includes a precision temperature sensor and a pressure transmitter. Thus it is possible to measure volumetric flow, mass flow, temperature, pressure, density and energy consumption with one device. The multivariable principle reduces complexity and cost compared to installing multiple individual devices to obtain the same process measurements.

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Wirbeldurchflussmesser Vortex DVH
DVH-EMS RTD Sensor Transmitter

Energy Monitoring
e.g. for steam and hot water applications

Robust construction, multivariable measurement and high measurement accuracy make our meters the ideal solution for recording energy consumption in your plant. The flow meter monitors one side of the process, either the flow or the return, and uses an input from a second separate temperature sensor on the opposite side of the process to calculate energy consumption. Selectable energy units include BTU, MBTU (thousand BTU), MMBT (million BTU), MWHr (mega watt-hour), KWHr (kilo watt-hour), HPHr (horsepower hours), MCal (mega calories), and MJ (mega joules). The transmitter indicates the two measured temperatures, the difference of the temperatures, the total mass as well as the energy consumption.

A single multivariable sensor with integrated flow computer and an external temperature sensor contributes significantly to reducing initial procurement and installation costs. In additionally, the robust design reduces maintenance costs.

Details

Applications

Reliable measurement of liquids, gases and steam. Only one tapping point in the pipeline enables accurate measurement of the mass or volume flow rate. Areas of application for multivariable vortex flow meter.

  • In the chemical and petrochemical industry: multivariable vortex flow meters are used to measure the flow rates of steam in various processes within chemical and petrochemical plants. In refining processes within petrochemical plants, multivariable vortex flow meters contribute to the accurate measurement of fluid flows, ensuring efficiency and product quality.
  • In the oil and gas industry: multivariable vortex flow meters accurately measure the flow rates of crude oil in pipelines, providing data on mass flow, temperature, and pressure. Monitoring the flow rates of oil and gas at the wellhead provides valuable data for reservoir management and production optimization.
  • In the food industry: accurate measurement of liquid ingredients, such as oils, flavourings, and additives, in food manufacturing processes. Monitoring liquid flow rates during the mixing and blending of ingredients to ensure consistency. Monitoring the flow of liquid ingredients in ice cream production, ensuring proper ratios and consistency.
  • In Pharmaceutical: monitoring the flow of purified water used in various pharmaceutical processes to ensure water quality and compliance with regulatory standards. Measurement and control of liquid flows in bioprocessing and fermentation applications are essential for cell culture growth and the production of biopharmaceuticals.
Reliability

Fully welded sensor, thus no sealing at the sensor head.
Wetted parts: stainless steel 316L

Special features
  • Flange type: DN15 (1/2″) bis DN200. (8″)
  • Wafer type: DN 25 (1″) bis DN 100. (4″)
  • High temperature version up to 400°C. (750°F)
  • Max. operating pressure: 100 bar abs (1500 psia).
  • With 3 senor elements, the following parameters are determined.
  • Volume flow rate, mass flow rate, temperature, pressure, density
Technical data

Accuracy

Process variableLiquidGas & Steam
Volume flow± 0,7% of rate± 1% of rate
Mass flow± 1% of rate± 1.5% of rate
Temperature± 1°C (± 2°F)± 1°C (± 2°F)
Pressure±0,3% of full scale±0,3% of full scale
Density±0,3% of rate±0,5% of rate
RepetabilityStability (over 12 Months)
Volume flow±0,1% of ratenegligible error
Mass flow±0,2% of rate±0,2% of rate
Temperature± 0,1°C (±0,2°F)±0,5°C (±0,9°F)
Pressure±0,05% of full scale±0,1% of full scale
Density±0,1% of rate±0,1% of rate

Response time

  • Adjustable from 1 to 100s

Process and Ambient Temperature

  • Standard temp. : -40…260°C (-40…500°F)
  • High temp.: up to 400°C (750°F)
  • Ambient temp.: -40…60°C (-40…140°F)
  • Storage temp.: -40…85°C (-40…185°F)

Power supply (model dependent)

  • 12…36 VDC 2-wire, loop powered
  • 12…36 VDC 4-wire
  • 100…240 VAC, 50/60Hz

Display

  • Alphanumeric 2 line x 16 character LCD digital display
  • 6 pushbuttons for full field configuration
  • Display rotatable in 90° intervals

Output signals

  • Analog: 4-20 mA, loop powered for volumetric meters
  • Alarm: Solid state relay, 40 VDC
  • Totalizer Pulse: 50ms pulse, 40 VDC
  • Volumetric: 1 analog, 1totalizer pulse
  • Multivariable: up to 3 analog signals, 3 alarms, 1 totalizer pulse
Certificates and Approvals

ATEX: II 2 G Ex d IIB + H2 T6
II 2 D EX tD A21 IP66 T85°C
Ta-40…+60°C

IEC EX Ex d IIB + H2 T6
Ex tD A21 IP 66 T 85°C,Ta=-40?+60°C

FM CLASS I, DIV 1 GROUPS B,C,D
CLASS II/III, DIV.1 GROUPS E,F,G
IP66, TYPE 4X, T6 Ta=-40?+70°

Communication

HART®
Modbus process monitoring

Device sizing

Device sizing