Name: digitalYEWFLO Multivariable Vortex Flow Meter
Brand: Yokogawa
SKU: digitalyewflo-multivariable-dy-mv

Yokogawa’s digitalYEWFLO Multivariable Vortex Flow Meter can measure flow rate and temperature simultaneously, eliminating the need for separate components and associated installation costs. The embedded temperature sensor inside the shedder bar directly outputs the mass flow rate of saturated steam and computes the flow rate in real time based on the measured temperature.

Our multivariable vortex flow meter features:

Embedded temperature sensor
Built-in steam tables
Self-diagnostics functions
Simultaneous displays of mass flow rate and temperature on two-line LCD indicator

Features

Embedded Temperature Sensor

With the digitalYEWFLO multivariable type vortex flow meter, there is no need for an external temperature sensor or the insertion hole in a pipe. An embedded Pt1000 RTD sensor extends the application of digitalYEWFLO to include the mass flow of saturated steam, gas, and liquids.

Built-in Steam Tables

Built-in steam tables provide temperature references for pressure based on the saturated steam conditions. With these steam tables, the measured temperature defines the steam pressure, and the temperature and pressure define the steam density. The mass flow rate is calculated by combining the steam density and volumetric flow rate.

With its Spectral Signal Processing system, the digitalYEWFLO is able to accurately measure fluctuations in temperature.

Advanced Self-Diagnostics

The LCD indicator provides messages to alert the operator if the temperature is outside the set range or if there is a temperature sensor fault, so necessary actions can be taken to prevent inaccurate measurements.

Simultaneous Displays of Mass Flow Rate and Temperature

The multivariable vortex flow meter displays mass flow rate and temperature on the two-line LCD indicator, providing simultaneous outputs for temperature monitoring and mass flow measurement. The LCD indicator also features user-selectable flow, temperature, total and other display parameters.

Durability

See General Specifications documents below for digitalYEWFLOW vortex flow meter dimensions and other detailed specifications.

Applications

Steam Flow Measurement

Steam has often been described as the 'lifeblood' of the industry. The multivariable vortex flow meter is the perfect solution for steam flow measurement due to its embedded temperature sensor, built-in steam tables, inherent linear measurement, large turndown, low pressure drop, and high accuracy. The multivariable vortex flow meter eliminates the need for separate components and associated installation temperature elements. In addition, it provides quality, dependability and high pressure ratings along with a stable and reliable flow measurement.

Vortex Flow Meter Working Principle: How Multivariable Flow Meters Work

Saturated Steam Measurement Mechanism

A steam table provides data on the temperature, pressure and density of steam and is provided by a certification body such as ASME (American Society of Mechanical Engineers). The saturated steam curve shows the steam saturation point for each pressure/temperature level. The digitalYEWFLO converter calculates the mass flow rate using the density figure from the steam table. With its Spectral Signal Processing system, the digitalYEWFLO is able to accurately measure fluctuations in temperature. With superheated steam, density is calculated as a fixed pressure value that includes the superheated temperature value.