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Yokogawa

Yokogawa digital YEWFLO vortex flowmeter


YOKOGAWA ®
Yokogawa digital YEWFLO vortex flowmeter
Summary:
Yokogawa digitalYEWFLO vortex flowmeter
The new digitalYEWFLO vortex flowmeter is the latest offering in our line of world class vortex flowmeters. Based on the field-proven sensor technology of the YEWFLO series of vortex flowmeters, digitalYEWFLO offers a unique signal processing technique that extends the features of DSP. 
The advanced processing algorithms are known as Spectral Signal Processing (SSP). SSP analyzes the vortex waveform into its spectral components to filter noise from signal for the most stable measurement possible.
 

Downloads for digitalYEWFLO(DY) 

General Specifications

 

Features: digitalYEWFLO Vortex Flowmeter

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

 

 

Specifications: digitalYEWFLO Vortex Flowmeters

  Standard Multi-Variable Reduced Bore
Model & code DY Vortex Flowmeter Optional code:/MV Option code:/R1,/R2
Fluid to be measured Liquid, gas, steam (avoid multiphase flow and sticky fluids)
Nominal size 15mm ∼ 300mm
(400mm:special)
25mm ∼ 200mm 25mm ∼ 200mm
Accuracy Liquid: ±1.0% of reading (20000≤Re≤1000)
Liquid: ±0.75% of reading (D×1000≤Re)
Liquid: ±1.0% of reading
(20000≤Re≤1000)
Gas, steam: ±1.0% of reading (flow velocity less than 35m/s)
Gas, steam: ±1.5% of reading (flow velocity 35m/s ∼ 80m/s)
Output signal Simultaneous output(both analog and transistor contact output available)
Process
temperature
range
-29 deg C - 260 deg C
(standard)
-29 deg C - 260 deg C
(standard)
-29 deg C - 260 deg C
(standard)
-196 deg C∼100 deg C
(option: cryogenic version)
N/A N/A
-29 deg C∼450 deg C
(option: high process
temperature version)
N/A -29 deg C∼450 deg C
(option: high process
temperature version)
Process
pressure
limit
-0.1MPa (-1kg/cm2) to flange rating
Ambient temperature -29 to 85 deg C (Integral type / No indicator)
-29 to 80 deg C (Integral type / with indicator)
-29 to 85 deg C (Remote type detector)
-40 to 85 deg C (Remote type converter / No indicator)
-30 to 80 deg C (Remote type converter / with indicator)
Ambient
humidity
5锝100%RH( Non-condensing锛
Mounting Integral type and Remote type detector: Flange mounting or wafer mounting Remote type converter: 2 inch pipe mounting
JIS10/20/40, ANSI150/300/600/900, JPI150/300/600,DIN PN10/16/25/40
Electrical connection JIS G1/2 female, ANSI 1/2NPT female, ISO M20×1.5 female
Electrical classification JIS flameproof, FM explosion proof/intrinsically safe
ATEX (CENELEC flameproof/intrinsically safe/IEC type n)
CSA explosion proof/intrinsically safe : Dual Seal
SAA flame proof/intrinsically safe
Material Body: SCS14A cast stainless steel (equivalent to SUS316,CF8M)
Shedder bar: duplex stainless steel (option:anti-corrosion version)
Gasket: SUS316 stainless steel with polytetrafluoroethylene (Teflon) coating
Converter housing and case cover: aluminum alloy or ASTM CF8M (equiv. JIS SCS14A) (Option: /E1)
Applicable Standard *EMC Conformity Standards: 
  EN61326-1 Class A, Table 2 (For use in industrial locations), EN61326-2-3 
  EN55011 Class A Group 1 
*Pressure Equipment Directive: 
  Notified Body Identification Number 0038 Module H
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