digitalYEWFLO Multivariable

The world's first two-wire Multi-variable Type (with built-in temperature sensor) can directly output the mass flow rate of saturated steam.

The digitalYEWFLO vortex flowmeter combines the field proven sensor and body assembly used in more than 450,000 units installed worldwide with a unique and powerful combination of digital technology that includes spectral signal processing (SSP), a Yokogawa innovation. The digitalYEWFLO vortex flowmeter is accurate and stable, even in harsh process conditions, and has a highly reliable and robust design that delivers improvements in plant efficiency and reduced operating costs.

Multivariable Type: option code /MV

  • Resistance temperature sensor built into vortex shedder bar
  • User selectable Flow, Temp, Total and other displays
  • Mass flowrate calculated using temperature readings and steam table data
  • Able on its own to output mass flowrate

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 the ASME. The saturated steam curve shows the steam saturation point for each pressure/temperature level. The digitalYEWFLO converter calculates the mass flowrate 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.

With the totalization function, energy consumption data collected over a period of time can be stored in memory and used to devise measures for reducing energy consumption.

Saturated Steam Measurement Mechanism

Sleep better knowing that your Yokogawa digitalYEWFLO vortex meters have the durability and reliability that you can count on.

 

Durability

Durability through simple design and construction.

DY Reliability

 

Advanced Self-diagnostics

Provides diagnostic messages on high vibration environments, excessive flow fluctuations, and clogging or plugging in the area around the shedder bar. Analysis of the process allows true condition-based maintenance.

Advanced Self-diagnostics

Refer to the General Specification sheet located under the 'Downloads' tab for detailed specifications.

  Standard Type Reduced Bore Type Multi-Variable Type
Model Model DY Vortex Flow meter
(Integral Type, Remote Type)
Model DYA Vortex Flow Converter
(Remote Type)
(Option for High Process Temperature
Version: /HT,
Option for Cryogenic Version: /LT)
Option: /R1, /R2
1 size down: /R1
2 size down: /R2
(Option for High Process Temperature
Version: /HT)
Option: /MV
Fluid to be Measured Liquid, Gas, Steam (Avoid Multiphase Flow and Sticky Fluids)
Nominal Size Wafer 15 to 100 mm N/A 25 to 100 mm
Flange 15 to 400 mm R1: 25 to 200 mm
(Detector: 15 to 150 mm)
R2: 40 to 200 mm
(Detector: 15 to 100 mm)
25 to 200 mm
(Special: 250 to 300 mm)
Accuracy Liquid ±0.75% of Reading
(Depends on Reynolds number)
±1.0% of Reading
(Depends on Reynolds number)
±0.75% of Reading
(Depends on Reynolds number)
Gas
Steam
±1.0% of Reading
(Depends on flow velocity)
Output Signal Dual Output (Both analog and pulse output available)
Communication: HART 5/HART 7, BRAIN, FOUNDATION fieldbus
Process Temperature -29 to 250 deg C
-29 to 450 deg C (/HT)
-196 to 100 deg C (/LT)
-29 to 250 deg C
-29 to 450 deg C (/HT)
-29 to 250 deg C
-29 to 400 deg C (/HT)
Process Pressure -0.1MPa (-1kg/cm2) to flange rating
Ambient Temperature -29 to 85 deg C (Depends on model type)
Ambient Humidity 5 to 100% RH (No Condensation)
Mounting Flange or Wafer Type
JIS 10/20/40K
ANSI 150/300/600/900
(Special: 1500)
DIN PN 10/16/25/40/60/100/160
Flange Type only
JIS 10/20K
ANSI 150/300
Flange or Wafer Type
JIS 10/20/40K
ANSI 150/300/600/900
DIN PN 10/16/25/40
Electrical Connection JIS G1/2 Female, ANSI 1/2NPT Female, ISO M20×1.5 Female
Explosion Protected Type TIIS Ex d, FM Ex d/Ex ia, ATEX Ex d/Ex ia,
CSA Ex d/Ex ia, IECEx Ex d, SAA Ex ia
Material Body: Stainless steel(Special: Hastelloy, Carbon steel)
Shedder Bar: Duplex stainless steel(Option: Stainless steel, Hastelloy)
Gasket: Stainless steel with Teflon coating (/HT: with Silver plating)
Converter housing, case and cover: Aluminum alloy(Option: Stainless steel)

 

HART Communicator YHC5150X

The FieldMate family effectively supports the initial setup, daily maintenance, and troubleshooting for the maximum utilization of intelligent field instruments. FieldMate is a flag ship product of the FieldMate family which is a PC based full functional and full field protocol configuration tool. The YHC5150X FieldMate Handheld Communicator is the latest HART Communicator from Yokogawa. 

Mobile Field Device Management (FieldMate)

FieldMate 3.0 is a PC based tool that enables you to see intelligent field devices clearly, know their condition in advance, and act with agility throughout maintenance work flow.

Přehled:

Vortex flow meters utilize a fluid phenomenon in which frequencies of Karman vortex streets released from a shedder bar inserted in a flow are proportional to flow velocities.

Technické reporty Yokogawa
Přehled:

Progress in digital signal processing and network technologies has enabled advanced functions which cannot be achieved by traditional field devices with 4-20 mA signal, to be implemented on field devices. Standardization of international fieldbus specifications, notably the FOUNDATION™ Fieldbus, has enabled users to build optimum field networks comprised of freely chosen field devices from various device vendors.

Technické reporty Yokogawa
Přehled:

Vortex flow meters have been appreciated by users as volume flow meters, which can, in principle, be applied to any flow measurement of liquid, gas, or steam. Volume flow measurement is enough for substances with small variations in density such as liquid. 

Brožury
Instrukční manuály
Všeobecné specifikace
Software
Výkresy

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