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Gas sensors testing barometric pressure sensor with RS485 Modbus RTU interface

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We are looking to make high accuracy barometric measurements to use in the testing of gas sensors in an indoor laboratory environment at room temperature.  We would prefer to use a Modbus protocol to retrieve and read the barometric pressure value.

We would suggest the PAA33X which has a high resolution Modbus RTU digital interface and overall accuracy of 0.05% FS including temperatures error over 10 to 40 degC.

Gas sensors testing barometric pressure sensor with RS485 Modbus RTU interface

PAA33X Modbus RTU Interface Barometric Range Pressure Sensor

  • SKU ID: s1-paa33x-0003
  • Pressure Range: 0.8 to 1.2 bar absolute
  • Analogue Output Signal: 4-20mA (2 wire)
  • Analogue Accuracy: 0.1% FS including temperature errors
  • Digital Interface: RS485 ready only
  • Digital Accuracy: 0.05% FS including temperature errors
  • Electrical Connection: Integral 2m cable, IP65
  • Process Connection: G1/4 male
  • Media Exposed Materials: Stainless steel 316L and Viton seals
  • Oil Filling: Silicone oil (standard)
  • Compensated Temperature Range: 10 to 40 DegC (standard)

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