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Vaisala Digital Barometer PTB220

Available for rental/ hire from Ashtead Technology - the Vaisala Digital Barometer PTB220.

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Vaisala BAROCAP® Digital Barometer PTB220 is designed for measurements in a wide environmental pressure and temperature range. The barometers are ideal to be used e.g. as ship barometers, as transfer standards, in weather stations and as replacements for mercury barometers.

The PTB220 barometers feature extremely high accuracy. Class A barometers are fine adjusted and calibrated against a deadweight tester. A single barometer can have one, two or three pressure transducers. Two or three transducers provide redundancy, which improves measurement reliability in airport, weather station and pressure standard applications. The local display has two rows and it can simultaneously show the barometric pressure, three-hour pressure trend and WMO pressure tendency code.

The PTB220 barometers use the inhouse developed Vaisala BAROCAP® Sensor. This silicon capacitive absolute pressure sensor has excellent hysteresis and repeatability characteristics, and outstanding temperature and long-term stability.

  • 500...1100 hPa or 50...1100 hPa pressure ranges
  • -40 to +60 ºC (-40 to +140 ºF) operating temperature range
  • High accuracy ± 0.15 hPa (Class A)
  • Long-term stability ±0.1hPa/yr (500...1100 hPa)
  • NIST traceable (certificate included)
  • Optional display can simultaneously show the barometric pressure
  • Several output options
  • For measurements in a wide environmental pressure and temperature range
  • Ideal for use e.g. ship barometer, transfer standard or replacement for mercury barometers