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- digitalYEWFLO Vortex Flowmeter High process Temperature Version / Cryogenic Version:
- digitalYEWFLO Fieldbus Type Vortex Flowmeter:
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- digitalYEWFLO Vortex Flowmeters
digitalYEWFLO Vortex Flowmeters
Yokogawa’s proprietary filter (SSP) for digital signal processing analyzes vortex signals and automatically selects the optimum settings for the best possible measurement.
Product Information
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| The digital YEWFLO 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 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 |
| - | 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. |
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| - | 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) |
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| - | Wide process temperature range |
| High temperature version up to 450 deg C Cryogenic version minimum -196 deg C |
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| - | 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) |
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| Gas, steam: ±1.0% of reading (flow velocity less than 35m/s) Gas, steam: ±1.5% of reading (flow velocity 35m/s ∼ 80m/s) |
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| 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) |
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| 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) |
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| Ambient humidity |
5～100%RH( Non-condensing） | ||
| 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 |
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| 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 |
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| 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) |
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| 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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