Yokogawa DY025 Vortex flowmeter
Meets NACE standards
Meets NAMUR43 standard
The maximum length of the separated cable is 30m
Clear and concise display
Simple parameter setting
Basic technical specifications
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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 |
New features with SSP (Digital Signal Processing) technology
SSP is a part of the digital vortex flowmeter circuit. SSP can analyze the fluid condition in the digital vortex flowmeter and analyze it
The data is automatically optimally adjusted for use, and the SSP correctly detects vortices in low-flow areas, significantly improving metering
Stability. This excellent function is a digital signal processing technology pioneered by Yokogawa, Japan, which has never been available in previous vortex flowmeters.
Advanced self-diagnostics
Can identify and display use conditions such as large pipe vibrations and flow anomalies.
· High precision
± 0.75% of reading (liquid)
± 1% of reading (gas, steam)
Large temperature range
High temperature type: up to 450 ℃
Low temperature type: up to -200 ℃
Simple parameter setting
Use frequent parameter combinations in one module, thus reducing parameter setting time.
Clear and concise display
Can display traffic, cumulative traffic and self-diagnosis information at the same time
· Analog/pulse dual output
Output flow signal and pulse signal simultaneously
Alarm output
If an alarm occurs, there will be an alarm signal output.
Status output (flow switch function)
When the alarm occurs, the alarm signal is output by the contact. In addition, when the flow rate is below the set value, the signal can be output by the contact.
Compact converter
BRAIN/HART communication and panel setting buttons are available.
Sensors of the same construction can be used to measure liquids, gases and vapors.
Stainless steel sensor without moving parts, durable, safe.
· Comply with NACE standards
· Comply with NAMUR43 standard
The maximum length of the separated cable is 30m
Flameproof structure:
JIS /FM/ATEX/CSA/SAA (Flameproof/intrinsic safety) Basic performance indicators:
Flow measured body:
Liquids, gases, vapors (avoid multi-phase flow and adhesion)
· Measuring flow range:
See general specifications
Accuracy:
± 0.75% of reading (liquid), ± 1% of reading (gas, steam)
Repeatability:
± 0.2% of the reading
Calibration:
The flowmeter is water calibrated before leaving the factory
Normal working conditions:
Fluid temperature range: -40 ~ 260 ℃ (general type)
-200 ~ 100 ℃ (low temperature type, optional)
-40 ~ 450 ℃ (high temperature type, optional)
Working pressure range: -0.1Mpa (-1kg /cm2) ~ flange rating
Ambient temperature range: -40 ~ 85 ℃ (separate sensor, separate converter)
-40 ~ 85 ℃ (monotype)
-30 ~ 80 ℃ (one body with watch head)
Ambient humidity: 5 ~ 100%RH (at 40 ℃) (no condensation)
Power supply voltage: 10.5 ~ 42V DC (see the relationship between power supply voltage and load resistance)
Electrical performance: Since pulse output, alarm output and status output are using common terminals, these functions cannot be used at the same time.
Output signal: Dual output (analog and transistor contact output signals can be obtained at the same time).
In this case, refer to "Installation Instructions" for power and pulse output cable connections.
Analog output: 4 ~ 20mA DC, 2-wire system
Transistor contact output: open collector, 3-wire system
Use parameter Settings to select pulse, alarm, or status outputs
Contact rating: 30V DC, 120mA DC