digitalYEWFLO High process Temperature Version / Cryogenic Version

The long term reliability of the digitalYEWFLO series also extends to the High Process Temperature and Cryogenic models.
With the High Process Temperature model, process fluids with temperatures as high as 450 degrees C can be accurately measured, this is ideal for your high temperature superheated and saturated steam applications.
The Cryogenic model can measure processes at temperatures down as low as -196 degrees C, ideal for low temperature applications such as liquid oxygen.

New functions with Spectral Signal Processing (SSP) technology

  • SSP analyses the fluid conditions inside the digitalYEWFLO vortex flowmeter and uses the data to automatically select the optimum adjustment for the application, providing features never seen before in a vortex flowmeter.
  • SSP accurately senses vortices in the low flow range, providing outstanding flow stability.

Advanced self-diagnostics

  • Application conditions such as high pipeline vibration and abnormal flow are predicted and indicated.

High accuracy

  • ±0.75% of reading (liquid)
  • ±1.0% of reading (gas, steam)

Wide process temperature range

  • High temperature version up to 450 deg C
  • Cryogenic version minimum -196 deg C

Simple parameter settings

  • Frequently-used selections grouped together in a quick-access format decrease commissioning time

Clear, concise indicator

  • Convenient display of the simultaneous and total flow rates together with the process diagnosis

Dual output for analog/pulse

  • Simultaneous output for flow rate and pulse

Alarm output

  • An alarm signal is output when an alarm occurs.

BRAIN/HART communication and key switches for human-machine interface

NACE compliant

NAMUR 43 compliant

Remote cable length up to 30m

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



Durability through simple design and construction.

Cryogenic DY Reliability


Advanced Self-diagnostics

Provides diagnostic messaqges on high vibration enviroments, excessive flow fluctuations, and clogging or pluggingin 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.

  High Process Temperature Version
Cryogenic Version
Reduced Bore Type
Model Model DY
Vortex Flowmeter
(Remote Type)
Combination with 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)
Fluid to be Measured Liquid, Gas, Steam (Avoid Multiphase Flow and Sticky Fluids)
Nominal Size Wafer 15 to 100 mm N/A
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)
Accuracy Liquid ±0.75% of Reading
(Depends on Reynolds number)
±1.0% of Reading
(Depends on Reynolds number)
±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 450 deg C (/HT)
-196 to 100 deg C (/LT)
-29 to 250 deg C
-29 to 450 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
DIN PN 10/16/25/40/60/100/160
Flange Type only
JIS 10/20K
ANSI 150/300
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.


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.

Yokogawa Technical Report

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.

Instruction Manuals
General Specifications

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