YOKOGAWA Digital YEWFLO Classic Vortex Flow Meter
The digital YEWFLO vortex flowmeter combines the field proven sensor and body assembly used in more than 450,000 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.
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Description
Description
Standard Type
| Model | ・DY type vortex flowmeter (Integral type, remote type detector) ・DYA type remote type converter |
|
|---|---|---|
| Specification | Standard specification | |
| Measurement Fluid | Liquid, gas, saturated steam, superheated steam (avoid multi-phase flow and adhesive fluid) | |
| Process Temperature | -29 to 250 °C | |
| Process Pressure | -0.1 MPa according to flange rating | |
| Diameter | Wafer | 15 to 100 mm |
| Flange | 15 to 400 mm | |
| Accuracy | Liquid | ± 0.75 % of reading (depends on Reynolds number) |
| Gas, Steam | ± 1.0 % of reading (depends on the flow velocity) | |
| Output Signal | Analog output, transistor contact output (simultaneous output possible) | |
| Communication Type | HART 7 / HART 5, BRAIN, FOUNDATION fieldbus | |
| Explosion Protected Type | TIIS Ex d, FM Ex d / Ex ia, ATEX Ex db / Ex ia, CSA Ex d / Ex ia, IECEx Ex db / Ex ia | |
Reduced Bore Type
| Model | ・DY type vortex flowmeter (Integral type, remote type detector) ・DYA type remote type converter |
|
|---|---|---|
| Specification | Optional specifications 1 Size down: /R1 2 Size down: /R2 |
|
| Measurement Fluid | Liquid, gas, saturated steam, superheated steam (avoid multi-phase flow and adhesive fluid) | |
| Process Temperature | -29 to 250 °C | |
| Process Pressure | -0.1 MPa to flange rating | |
| Diameter | Wafer | None |
| Flange | R1: 25 to 200 mm (detection unit: 15 to 150 mm) R2: 40 to 200 mm (detection unit: 15 to 100 mm) |
|
| Accuracy | Liquid | ± 1.0 % of reading (depends on Reynolds number) |
| Gas, Steam | ± 1.0 % of reading (depends on the flow velocity) | |
| Output Signal | Analog output, transistor contact output (simultaneous output possible) | |
| Communication Type | HART 7 / HART 5, BRAIN, FOUNDATION fieldbus | |
| Explosion Protected Type | TIIS Ex d, FM Ex d / Ex ia, ATEX Ex db / Ex ia, CSA Ex d / Ex ia, IECEx Ex db / Ex ia | |
Multi-Variable Type
| Model | DY type vortex flowmeter (Integral type, remote type detector) DYA type remote type converter |
|
|---|---|---|
| Specification | Optional specifications: /MV | |
| Measurement Fluid | Liquid, gas, saturated steam, superheated steam (avoid multi-phase flow and adhesive fluid) | |
| Process Temperature | -29 to 250 °C | |
| Process Pressure | -0.1 MPa to flange rating | |
| Diameter | Wafer | 25 ～ 100 mm |
| Flange | 25 to 200 mm (custom specification: 250 to 400 mm) | |
| Accuracy | Liquid | ± 0.75 % of reading (depends on Reynolds number) |
| Gas, Steam | ± 1.0 % of reading (depends on the flow velocity) | |
| Output Signal | Analog output, transistor contact output (simultaneous output possible) | |
| Communication Type | HART 7 / HART 5, BRAIN, FOUNDATION fieldbus | |
| Explosion Protected Type | TIIS Ex d, FM Ex d / Ex ia, ATEX Ex db / Ex ia, CSA Ex d / Ex ia, IECEx Ex db / Ex ia | |
Combination with Multi-Variable Type Possible
| Model Code | DY025 to DY100: Wafer Type DY025 to DY200: Flange Type |
|||
|---|---|---|---|---|
| Option Code | /MV | /HT/MV | ||
| Function | Temperature Indication / Output | Temperature Range | -29 to 250 °C | -29 to 400 °C |
| Saturated Steam Mass Flow Rate | Calculation Temperature Range | 100 to 250 °C | 100 to 330 °C | |
| Superheated Steam Mass Flow Rate | 100 to 250 °C | 100 to 400 °C | ||
| Gas Volume Flow Rate | -29 to 250 °C | -29 to 400 °C | ||
| Liquid Mass Flow Rate | -29 to 250 °C | -29 to 400 °C | ||
1. EMC Standards (EMC Standards)
| Standard name | Standard Type | Reduced Bore Type | Multi-Variable Type | High Process Temperature Version and Cryogenic Version | |
|---|---|---|---|---|---|
| CE Marking | European EMC Directive | Yes | Yes | Yes | Yes |
| RCM Mark | Australia and New Zealand Electrical Equipment Safety Standards |
Yes | Yes | Yes | Yes |
| KC Mark | Korea electromagnetic wave conformity standard | Yes | Yes | Yes | Yes |
2. Explosion Proof Standard
| Standard name | Standard Type | Reduced Bore Type | Multi-Variable Type | High Process Temperature Version and Cryogenic Version | |
|---|---|---|---|---|---|
| TIIS | Flame proof | Yes | Yes | Yes | Yes |
| IECEx | Flame proof | Yes | Yes | Yes | Yes (for High Process Temperature Version only) |
| Intrinsically safe | Yes | Yes | Yes | Yes | |
| ATEX | Flame proof | Yes | Yes | Yes | Yes (for High Process Temperature Version only) |
| Intrinsically safe | Yes | Yes | Yes | Yes | |
| FM | Flame proof | Yes | Yes | Yes | Yes |
| Intrinsically safe | Yes | Yes | Yes | Yes | |
| CSA | Flame proof | Yes | Yes | Yes | Yes |
| Intrinsically safe | Yes | Yes | Yes | Yes | |
3. Communication Protocol
| Communication protocol | Standard Type | Reduced Bore Type | Multi-Variable Type | High Process Temperature Version and Cryogenic Version | |
|---|---|---|---|---|---|
| HART | 7 | Yes | Yes | Yes | Yes |
| 5 | Yes | Yes | Yes | Yes | |
| BRAIN | Yes | Yes | Yes | Yes | |
| FOUNDATION Fieldbus | Yes | Yes | Yes | Yes | |
