Dwyer MSX-W13-PA Differential Pressure Sensor – Precise Air Pressure Control
Posted on: 07/11/2025
The Dwyer MSX-W13-PA differential pressure sensor provides precise air pressure measurement for HVAC, cleanroom, and filtration systems.
Compact and durable design with 4-20mA or 0-10V outputs, ideal for building automation and process control.
Dwyer MSX-W13-PA Differential Pressure Transmitter– Reliable Air Pressure Measurement for HVAC and Cleanroom Applications
The Dwyer MSX-W13-PA differential pressure Transmitter is part of the advanced Magnesense® MSX series developed by Dwyer Instruments, USA.
It is specially designed for HVAC control systems, cleanrooms, air ducts, and static pressure monitoring in ventilation and filtration systems.
1. Overview of the Dwyer MSX Series
The Dwyer MSX series pressure transmitters are well-known for their accuracy, compact design, durability, and ease of installation.
Each model offers a wide selection of pressure ranges to suit different applications — from low-pressure cleanroom monitoring to higher pressure duct systems.
The MSX-W13-PA model is a wall-mounted differential pressure transmitter with a measuring range up to 7000 Pa, making it ideal for high-performance HVAC and airflow monitoring systems.
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2. Typical Applications
The Dwyer MSX-W13-PA is widely used in:
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Cleanroom differential pressure monitoring between positive and negative pressure zones.
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HVAC systems – for static pressure control, air filter monitoring, and fan airflow measurement.
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Airflow measurement using square-root extraction for flow rate calculation.
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Integration with BMS/PLC systems using 4-20 mA or 0-10 V analog signals.
3. Key Technical Specifications
|
Specification |
Value |
|
Measuring range |
0 – 7000 Pa |
|
Mounting type |
Wall mount |
|
Output signal |
4-20 mA / 0-10 V / 0-5 V |
|
Power supply |
10–36 VDC or 21.6–33 VAC |
|
Accuracy |
±1% of full scale |
|
Protection rating |
IP66 / NEMA 4X |
|
Operating temperature |
–20 °C to +70 °C |
Thanks to its rugged and weatherproof housing, the MSX-W13-PA performs reliably in industrial, laboratory, and cleanroom environments.
4. Advantages of the Dwyer MSX-W13-PA
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IP66-rated enclosure – dustproof, moisture-resistant, and flame-retardant housing.
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Easy calibration and installation, with optional LCD display for onsite readings.
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High linearity and repeatability, ensuring stable output even at low differential pressures.
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Flexible output options (4-20 mA / 0-10 V / 0-5 V) for seamless integration with control systems.

5. Real-World Applications
In Vietnam and worldwide, the 4-20 mA differential pressure sensor Dwyer MSX-W13-PA is trusted in projects such as:
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Cleanroom pressure control in pharmaceutical and semiconductor facilities.
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Isolation rooms and laboratories for maintaining airflow direction.
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Smart building automation – monitoring air filters, ducts, and ventilation systems.
6. Conclusion
With its high precision, robust construction, and versatile analog outputs, the Dwyer MSX-W13-PA differential pressure sensor is an ideal choice for HVAC engineers, automation integrators, and cleanroom designers.
If you need a dependable, accurate, and easy-to-install differential pressure transmitter, the Dwyer MSX-W13-PA is a proven solution from a globally trusted brand.
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