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Vaisala PTB220 Digital Barometer
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Vaisala PTB220 Digital Barometer replacements for mercury barometers
Designed for measurements in a wide environmental pressure and temperature range. Ideal for use e.g. as ship barometers, transfer standards and replacements for mercury barometers.
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Product Description
Vaisala BAROCAP Digital Barometer PTB220
For measurements in a wide environmental pressure and temperature range
High accuracy - class A barometers have a total accuracy of ±0.15 hPa and class B barometers +/-0.25 hPa
Optional display can simultaneously show the barometric pressure, the three-hour pressure trend and the WMO pressure tendency code
Available with an analog output option
Ideal for use e.g. ship barometer, transfer standard or replacement for mercury barometers
Technical Data
Operating range (1hPa=1mbar)
Pressure range (order specified) 500...1100 hPa, 50...1100 hPa
Temperature range
operating -40...+60C (-40…+140F)
with local display 0...+60C (+32…+140F)
storage -60...+60C (-76…+140F)
storage with local display -20...+60C (-4…+140F)
Humidity range non-condensing
General
(Factory setting)
Supply voltage 10...30 VDC reverse polarity protected
Supply voltage sensitivity negligible
Current consumption
operation mode less than 30 mA
with local display less than 50 mA
hardware shutdown mode less than 0.1 mA
Serial I/O RS 232C full duplex or bidirectional TTL level or RS 485/422 half duplex
Optional analog output module
Output range 0…5 VDC, 4…20 mA
Supply voltage (reverse polarity protected) 15...30 VDC
Resolution 4 Pa
Total accuracy +15…+30C (+60…+85F)
class A +/-0.25 hPa
class B +/-0.30 hPa