HD9408T… Series – Meteo Barometric Transmitter

Brand: Delta OHM S.R.L.

HD9408T… Series – Meteo Barometric Transmitter

Brand: Delta OHM S.R.L.
HD9408T…BARO and HD9408TR…BARO are analog output electronic barometers. 

They use a piezoresistive sensor element which gives extremely accurate and stable measurement of the atmospheric pressure and assures excellent repeatability, low hysteresis and very good temperature stability. 

The output signal of the sensor is conditioned to provide a voltage or a current output linearly proportional to the barometric pressure. 

The transmitters are ready to use as they have been calibrated at the factory. A zero adjustments potentiometer is available for offset to station elevation.

Specifications

Sensor Type

  • Piezoresistive diaphragm

Measuring Range

  • 800…1100 mbar
  • 600…1100 mbar on request

Analog Output

  • HD9408TBARO: 0…1 Vdc standard, 0…5 or 1…6 Vdc or 4…20 mA (two wires) on request
  • HD9408TRBARO: 0…1 Vdc standard, 0…5 , 1…5 V or 1…6 Vdc on request

Accuracy

  • ± 0.5 mbar, @ 20° C

Resolution

  • Infinite

Thermal Effects

  • HD9408TBARO: < 1 % Full Scale, zero, < 1 % Full Scale, span over -20 to +60° C (-4 to 140° F)
  • HD9408TRBARO: ± 0.8 mbar over -40° C to +60° C (-40 to 40° F)

Long Term Stability

  • HD9408TBARO: < 0.25 % Full Scale over 6 months at 20° C
  • HD9408TRBARO: < 0.2 % Full Scale over 6 months at 20° C

Turn On Time

  • HD9408TBARO: 1 sec. to 99 % of full scale reading
  • HD9408TRBARO: 5 min @ 24 Vdc supply to 99 % of full scale reading

Response Time

  • < 200 msec. after pressure stabilization

Supply Voltage

  • HD9408TBARO: 8…35 Vdc
  • HD9408TRBARO: 12…35 Vdc

Supply Current

  • HD9408TBARO: < 4 mA
  • HD9408TRBARO: 25 mA @ 20° C, 24 Vdc (warm-up 120 mA)

Operating Temperature

  • HD9408TBARO: -30…+60° C
  • HD9408TRBARO: -40…+60° C

Media Compatibility

  • Air and dry gases only

Overload Pressure

  • 2 bar - 30 psi

Documentation

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