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 Digital YEWFLO 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
Specifications:
Standard |
Multi-Variable |
Reduced Bore |
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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) |
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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) |
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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 |
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-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 |
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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) |
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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 |
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Electrical classification
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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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