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QYB401 High Precision Differential Pressure Transmitter

QYB401 High Precision Differential Pressure Transmitter

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The QYB401 is a compact differential pressure transmitter that uses a high-performance monocrystalline silicon sensor based on German MEMS technology. It features a dual-diaphragm structure, integrated signal processing, and real-time temperature compensation to ensure high accuracy and long-term stability.

Its stainless steel construction and multiple output options make it ideal for precise differential pressure monitoring across industrial and HVAC systems.

Applications:

Industrial automation

Filtration and pump monitoring

HVAC differential pressure control

Water and wastewater treatment

Building pressure systems

Petrochemical process control

Technical Specifications:

Parameter Value
Sensor Type Monocrystalline silicon (MEMS)
Pressure Type Differential pressure
Measuring Range ±1 kPa to ±1 MPa (customizable)
Accuracy ±0.25%F.S / ±0.1%F.S (optional)
Output Signal 4–20mA / 0–10V / RS485 / Modbus
Power Supply 10–30V DC
Operating Temperature -20℃ to 85℃
Overload Pressure 200% of Full Scale
Process Connection G1/4, M20×1.5, NPT1/4, Customized
Electrical Connection Cable / M12 / DIN43650
Protection Rating IP65 / IP67
Housing Material Stainless Steel
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