Xi'an Yunyi Instrument Co., Ltd
Xi'an Yunyiyibiao Instrument Co., Ltd. is a national high-tech enterprise, specializing in the R&D, production and sales of pressure transmitter,level meter, flow , temperature instrument and
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The YD321 is a digital wind pressure transmitter designed for precise measurement of low differential pressures and air velocity. It features a built-in LCD display for real-time data reading on-site. This instrument is commonly used in HVAC systems, cleanrooms, and environmental monitoring applications where accurate pressure measurement is crucial. It converts the measured pressure into standard electrical signals ( 4-20mA or 0-10V) for transmission to control systems or data acquisition devices.
| Parameter Category | Specification Details |
|---|---|
| Model | YD321 |
| Measurement Range | Multiple ranges available |
| Measured Medium | Air and non-combustible compatible gases |
| Accuracy | Typically ±1% to ±2% of full scale (dependent on specific range) |
| Output Signal | 4-20 mA (2-wire) or 0-10 V (3-wire) |
| Power Supply | 10~35 VDC (for 4-20mA); 17~36 VDC or isolated 21.6~33 VAC (for 0-10V) |
| Display | 4-digit LCD (Optional feature) |
| Response Time | Adjustable, typically 0.5 to 15 seconds |
| Electrical Connection | European-style terminal block |
| Pressure Connection | 3/16" (5 mm) inner diameter tubing |
| Enclosure Rating | NEMA 4X (IP66) |
| Operating Temperature | 0~150°F (-18~66°C) |
Digital LCD Display: Provides clear, real-time local reading of pressure or velocity values directly at the installation point.
High Accuracy: Offers reliable and precise measurements for effective system monitoring and control.
Robust Enclosure: The NEMA 4X (IP66) rating ensures protection against water ingress and dust, suitable for demanding environments.
Flexible Outputs: Available with standard analog outputs (4-20mA or 0-10V) for easy integration into existing control systems.
Adjustable Response Time: Allows damping of signal fluctuations to match specific application requirements.
Compact and Durable Design: Designed for easy installation and long-term stability in industrial settings.
The YD321 is ideal for various applications requiring accurate wind pressure or low differential pressure measurement:
HVAC Systems: Monitoring air filter clogging (pressure drop across filters), measuring duct pressures, and controlling fan speeds.
Cleanrooms: Ensuring and maintaining proper pressure differentials between zones to prevent contamination.
Environmental Monitoring: Measuring air flow and pressure in various industrial processes.
Energy Management Systems: Providing data for optimizing building ventilation and reducing energy consumption.