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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
Brand
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
