Differential pressure sensor USD70

Silizium Messzelle USD70


The differential pressure sensors USD 70 are available for small measuring ranges with extremely high overload resistance. The piezoresistive sensors with welded metal membrane are typically used in process and environmental industries. Applications include level, volume or mass measurement in liquids, differential pressure monitoring, e.g. of filters and pumps as well as flow measurement (volume or mass flow).

Silicon differential pressure sensor, high overload resistance, uncompensated bridge output signal

  • Measuring range 10mbar/30mbar
  • Bridge output signal (mV/V)
  • Highest accuracy, reproducibility and long term stability
  • High overload resistance of 160/420*bar (one side) 240/630bar* (both sides)
  • 316L Version
  • Different membrane materials and filling oils
Sectional view of the USD70

Technical structure of the USD70.

Standardized measuring ranges:

  • 0…10mbar / 1kPa / overload range:160bar (one side), 240bar (both sides)
  • 0…30mbar / 3kPa / overload range:160bar (one side), 240bar (both sides)

Output signal and energy supply:

  • Recommended: Constant current feed, <1mA
  • Bridge resistance: 4.5…5.6kΩ (25°C)
  • Output signal: 10mbar / ±13.8mV/V (span); 30mbar / ± 25mV/V (span)

Design size:

  • Ø 55 mm x 40 mm

Operating conditions:

  • Ambient/process temperature: -40 to +85°C
  • Storage temperature: -40 to +85°C

The differential pressure sensors are the base for the design and construction of high quality differential pressure transmitters. The sensors are uncompensated and can be compensated and calibrated at customer site.

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