Seametrics PT2X-BV Barometric and Vacum Sensor With Datalogging

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Seametrics PT2X-BV Barometrics and Vacum Sensor
Seametrics PT2X-BV Barometrics and Vacum Sensor

The Seametrics PT2X-BV is a special version of the PT2X designed to measure barometric and vacuum pressure in reference to absolute pressure, along with temperature and time. It will measure pressure/vacuum from 600 to 1100 millibars.

Pressure measurement is accomplished utilizing an extremely rugged and stable 15 PSIA piezo-electric media-isolated pressure element combined with a 16-bit analog-to-digital converter.

This provides extremely accurate and stable pressure input into the microprocessor on the circuit board that measures the pressure, stores the data in non-volatile memory, and communicates the information via a serial communication link (RS485) to the host computer.

Temperature measurement is accomplished by utilizing a temperature sensor chip. The PT2X-BV is available in two enclosures – either an ABS weather-proof box or a stainless steel tube. The tube version is available with either a solid end cone or an NPT end cone for connecting to piping.

The PT2X-BV can be networked with other Seametrics Smart Sensors and controlled directly from a single computer. While most will use the PT2X-BV with our Aqua4Plus 2.0 software, it is by no means limited to that software. You can use your own Modbus® RTU or SDI-12 software or logging equipment to read measurements, thus tying into your existing telemetry and control systems.

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  • Measures & records barometric pressure/vacuum and temperature
  • Low power
  • Modbus® RTU (RS485) and SDI-12
  • ±0.05% FSO typical accuracy
  • Thermally compensated
  • Small diameter — 0.75” (1.9 cm)
  • 520,000 records in non-volatile memory
  • Barometric compensation utility for use with absolute sensors
  • Free, easy-to-use, newly upgraded Aqua4Plus 2.0 software


  • Barometrically compensate absolute
    sensors for level measurement
  • Measure vacuum pressure during
    vapor extraction pilot testing
  • Supplement aquifer test data in
    leaky or confined conditions


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