HD9408TBARO and HD9408TRBARO are analog output electronic barometers with measuring range 800…1100 mbar (600…1100 on request). 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 as they have been calibrated at the factory. A zero adjustments potentiometer is available for offset to station elevation.
Available types in these series:
HD9408TBARO requires a continuous dc power supply, its low power consumption (< 4 mA) makes it ideal for portable and remote battery or solar powered applications. It is available in different kinds of analog output: 0-1 Vdc or, upon request, 0…5 Vdc, 1…5 Vdc, 1…6 Vdc, 0…10 Vdc or 4…20 mA. Working temperature range -30°C ÷ +60°C.
HD9408TRBARO offers superior temperature performance: the internal circuitry allows the sensor to work at constant temperature so that it achieves accurate temperature compensation over the whole range from -40°C to +60°C. It requires a continuous dc power supply and a differential cabling connection to achieve best results. It is available in different output versions: 0÷1 Vdc or, upon request, 0…5 Vdc, 1…5 Vdc, 1…6 Vdc or 0…10 Vdc.
HD9408TBARO and HD9408TRBARO are low cost and excellent performance solutions for meteorological applications, environmental monitoring systems, metrological and environmental data logging, altitude applications, barometric pressure compensation in the performance of internal combustion engine, cleanroom barometric pressure compensation, testing of vehicle emissions.
More transmitters, see HD9908T serie