Delta Ohm HD9408T Meteo Barometric Transmitter

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.

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 with different kinds of analog output: 0…1 Vdc, 0…5 Vdc (1…5 Vdc, 1…6 Vdc on request) or 4…20 mA (two wires).

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. HD9408TRBARO requires a continuous dc power supply and a differential cabling connection to achieve best results. It is available with different output versions: 0…1 Vdc, 0…5 Vdc (1…5 Vdc, 1…6 Vdc on request).

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.