The YEWFLO DYA vortex flowmeter from Yokogawa provides high‑accuracy flow measurement for liquids, gases and steam. It features SSP (spectral signal processing) technology, optional built‑in temperature sensor, and supports FOUNDATION fieldbus, BRAIN and HART communication protocols.
The manual details standard specifications, model codes, optional features, installation requirements, electrical connections, and safety classifications for use in hazardous areas. It also includes tables for size selection, pressure testing, and performance limits. This manual is written in Chinese.
| Accuracy (liquid) | ±0.75% of reading |
|---|---|
| Accuracy (gas/steam) | ±1% of reading |
| Temperature range (high‑temp model) | -29 °C to +450 °C |
| Maximum working pressure | 42 MPa |
| Output signal | 4 ~ 20 mA DC (analog) or pulse |
| Cable length (max) | 30 m |
| Body material (general type) | SCS14A stainless steel |
The flowmeter reads liquids with an accuracy of ±0.75% of the reading.
It supports FOUNDATION fieldbus, BRAIN and HART communication protocols.
The signal cable can be up to 30 meters long.
The device is rated for a maximum working pressure of 42 MPa.