MDM290 Differential pressure sensor module

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Key features

• Differential pressure range: 0.35 bar to 35 bar
• Compact Ø19 mm format for OEM integration
• High static pressure resistance: up to 200 bar
• Isolated diaphragm design, media compatible with SS316L and FKM
• Constant current or voltage supply
• Long-term stability up to ±0.5%FS/year
• Customizable compensation: laser-trimmed or external resistors

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About the MDM290 Differential pressure sensor module

The MDM290 is an OEM differential pressure sensor with stainless steel isolated diaphragm, designed for accurate and stable pressure measurements. The sensor measures the pressure difference between two ports, transmitting force through a silicon oil-filled chamber onto a piezoresistive die. This setup ensures precision, durability, and compatibility with various corrosive or conductive fluids.

Usage conditions

The sensor operates between -40°C and +125°C, with a compensated temperature range from 0°C to +50°C. Its robust construction supports 2× overpressure and a static pressure tolerance of up to 200 bar. It delivers stable output even under vibration and shock (10g RMS and 100g impact).

Possible applications

• Industrial process control
• Venturi and eddy-current flowmeters
• HVAC differential monitoring
• Liquid level measurement systems
• Pressure calibrators and check meters
• Medical and gas monitoring devices

Advantages of choosing this product

With Ø19 mm installation dimensions, dual compensation options, and up to ±0.25%FS accuracy, the MDM290 provides high interchangeability and flexibility for OEM designers. Its media-isolated design enhances safety and performance in challenging environments.

Other important features

• Output signal: 60 mV DC full span
• Input impedance: 3–8 kΩ | Output impedance: 3.5–6 kΩ
• Electrical connection: 100 mm silicon rubber flexible wire
• O-ring: FKM, resistant from -20°C to +250°C
• Available in 6-wire or 5-wire versions depending on range

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