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The baro transmitter measures the "absolute air pressure" of the atmosphere at the location.
It is designed for application in the field of environmental protection, where high accuracy, quick responding behavior, long-term sturdiness and reliability are required.
The instrument is suited for indoor- and outdoor application.
In the baro transmitter a tempered, piezo-ceramic absolute-pressure-sensor is used, that features excellent thermal and mechanical sturdiness.
Technical Parameters
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Pressure sensor
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Barometr. Air pressure
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Type
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Piezo resistive
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Measuring range
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300hPa～1100hPa
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Resolution
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0.01 hPa
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Accuracy with sensor heating
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±0.25 hPa (-40℃～65℃)
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Accuracy w/o sensor heating Typical
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±1 hPa (-20℃～65℃)
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Long-term stability
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±0.1 hPa/Jahr
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Pressure sensor
Heating
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Control temperature:
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50℃±1℃
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Serial Interface
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Type
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RS485
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Mode of operation
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Half-duplex mode
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Data format
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8n1
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Baud rate
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2400，4800，9600，19200，
38400，57600，115200
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Frequency output
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Measuring range
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300hPa～1100hPa
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Frequency
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300Hz～1100Hz
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Definition Open collector, sink
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Umax≤30V, Imax≤20mA
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Pull-up-resistance active
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Ulow≤0V, Uhigh≤3V
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Analogue output
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Measuring range scalable
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300hPa～1100hPa
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factory-setting
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600hPa～1060hPa
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Current Output
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4mA～20mA
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RL(load)
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≤400Ω @ UB≥12V DC
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General
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Operating voltage
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12V～24V DC
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On using digital outputs
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5V～24V DC
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Gliding mean value
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1,2,4,8,16sec
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Ambient conditions
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Temperature range
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-40℃ ～65℃
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Humidity range
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Non-condensing
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Housing
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Material
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Polycarbonat
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Weight
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0.15kg
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Protection
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IP65
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