Products Description

The SG-P30 Series Single-Channel Digital Output Pressure Sensor is a high-precision MEMS pressure measurement device based on silicon resonant MEMS technology. It adopts a monocrystalline silicon resonant beam + diaphragm sensing structure, which converts applied pressure into resonant frequency shift signals. These signals are processed through built-in temperature/offset compensation, digital calibration circuits, and quantization compensation of the original analog signals to ultimately deliver accurate, stable digital pressure readings.

Compared to traditional piezoresistive or capacitive pressure sensors, the SG-P30 Series boasts significantly higher accuracy, superior long-term stability, and enhanced resistance to electrical and thermal interference. It features multi-point calibration capabilities, including offset calibration, gain calibration, and temperature drift compensation, which effectively ensures output consistency even under wide environmental variations. Additionally, the series supports adjustments to output units, further enhancing its adaptability.

Equipped with a variety of optional digital output interfaces such as CAN, RS-232, RS-422, and RS-485, the SG-P30 Series can seamlessly integrate into PLC, DCS, SCADA, and automated process control systems. There is no need for additional analog signal conditioning, which simplifies installation procedures and reduces maintenance costs. With its flexible output forms and high-precision performance, this series is well-suited for various high-precision pressure measurement scenarios.

Features

The comprehensive accuracy of full temperature and full range can reach ±0.01% F.S.

Ultra-high accuracy with long-term low drift performance
Full digital output eliminates analog interference and signal degradation
Based on silicon resonant MEMS - high resolution, low noise, high repeatability
Wide temperature adaptability suitable for harsh operating environments
Optional customization of output units, electrical connectors and pressure fittings
Fast start-up capability for real-time measurement applications
Low acceleration sensitivity (<5 Pa/g) supports vibration-rich environments

Specifications

Pressure range	140kPa	Choose arbitrarily in 0 to optional pressure range with calibration range, minimum calibration pressure 5kPa
	280kPa
	350kPa
	1MPa(For SG-P32)
	2MPa(For SG-P32)
Type of pressure	Absolute pressure
Breaking pressure	140kPa:3.5×F.S.	Overload pressure	140kPa:3.0×F.S.
	280kPa:2.0×F.S.		280kPa:1.5×F.S.
	350kPa:1.5×F.S.		350kPa:1.2×F.S.
	1MPa:1.5×F.S.		1MPa:1.5×F.S.(For SG-P32)
	2MPa:1.5×F.S.		2MPa:1.5×F.S.(For SG-P32)
Supply voltage	6V~24V DC	Current consumption	≤3W
Optional combined accuracy	±0.01%F.S.	Long-term stability	Raised stage±0.01%F.S.
	±0.02%F.S.		Standard grade±0.02%F.S.
Output	CAN/RS-485/RS-232/RS-422	Acceleration effects	＜5Pa/g
Starting time	Obtain the first stable reading within 250ms after power-on.
Compensation temperature range	-40~80℃
Pressure interface	Φ 3.5mm×9mm Pagoda joint (for SG-P30)
	Φ 6.35mm×30mmconnector (for SG-P30)
	M10×1 external thread (he×22) (for SG-P32)
	M12×1 external thread (he×22) (for SG-P32)
	M10×1 internal thread(he×22) (for SG-P32)
	M12×1 internal thread (he×22) (for SG-P32)

Overall Dimension

SG-P30

Single-channel Digital Output Pressure Sensor

SG-P32

Single-channel Digital Output Pressure Sensor

Applications

Aerospace and Defense: Airborne air data computers, backup instrumentation systems, flight parameter (altitude, airspeed) measurement.

Industrial Calibration and Metrology: Digital pressure gauges, pressure controllers, high-precision pressure calibrators, standard pressure generators.

Precision Manufacturing and Control: Cleanroom pressure monitoring, semiconductor equipment process control, high-precision fluid control systems.

Scientific Research and Meteorology: High-precision meteorological stations, high-accuracy environmental parameter acquisition.

Why Choose Our High-Precision Silicon Resonant Pressure Sensor?

✔ Rigorous Quality Control

Manufactured using advanced MEMS micro-machining with monocrystalline silicon for stability and repeatability.

✔ Custom-Configurable Design

Pressure ranges, output interfaces, dimensions and calibration formats tailored to OEM & engineering needs.

✔ Quick Delivery · Reliable Production

Strong production capacity allows fast lead-time fulfillment for industrial procurement.

✔ Factory-Level Calibration

Each sensor undergoes multi-point temperature compensation and calibration for plug-and-use performance.

✔ Dedicated Technical Support

Professional engineers assist with design integration, testing guidance and troubleshooting.

FAQ

Q1: What digital interfaces are supported?

RS-232, RS-485, RS-422, and CAN - ready for direct system communication.

Q2: How do I choose a suitable pressure range?

Select a range based on max system pressure + safety margin. Custom ranges are available.

Q3: Can the sensor operate across wide temperature fluctuations?

Yes - fully compensated between −40°C to +80°C for high accuracy stability.

Q4: Is the output analog or digital?

Output is fully digital, ensuring low-interference data transmission.

Q5: Is this suitable for 24/7 long-term industrial operation?

Yes - long-term stability up to ±0.01% F.S. (high-stability version) supports continuous use.

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