Newsletter
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一、 Product Information
The digitalYEWFLO vortex flowmeter combines the field proven sensor and body assembly used in more than 260,000 units installed worldwide with a unique and powerful combination of digital technology that
includesspectral 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
二、 Features
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
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.
三、 Specifications
| Standard Type | Reduced Bore Type | Multi-Variable Type | ||
| Model |
Model DY Vortex Flowmeter (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 400 mm) |
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| 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) |
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Gas Steam |
±1.0% of Reading (Depends on flow velocity) |
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| Output Signal |
Dual Output (Both analog and pulse output available) Communication: HART 5/HART 7, BRAIN, FOUNDATION™ fieldbus |
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| 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) |
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| 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 |
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| 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 |
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| 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) |
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