Keterangan
HD 9408T BARO, HD 9408TR BARO and HD 9908T BARO are analog output electronic
barometers. The piezoresistive sensor gives extremely accurate and stable measurement of 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 factory calibrated. An offset adjustment
potentiometer is available for station elevation.
HD9408T BARO requires a DC supply voltage, its low power consumption ( < 4 mA)
makes it suitable for portable and remote battery or solar powered applications. It is
available in 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) .
HD 9408TR BARO offers higher 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.
HD 9408TR BARO requires a continuous DC supply voltage. It is available in different output versions: 0÷ 1 Vdc, 0÷ 5 Vdc ( 1÷ 5 Vdc, 1÷ 6 Vdc on request) .
HD 9908T BARO, is a barometric transmitter equipped with a 3 ½ digit display ( 1 mbar resolution) showing pressure measurements it has a 0÷ 20 mA, 4÷ 20 mA, 0÷ 1 V and 0÷ 5
V ( 0÷ 10 V on request) analog output confi gurable by the customer and an ON/ OFF relay
with programmable alarm threshold.
HD 9908T BARO requires a 24 Vac ( or 220 Vac on request) power supply.
HD 9408T BARO, HD 9408TR BARO and HD 9908T BARO are low cost and high -performance solutions for meteorological applications, environmental monitoring
systems, weather and environmental datalogging, barometric pressure compensation for internal combustion engine performance, cleanroom barometric pressure compensation, automotive emission test.
HD9408T BARO HD9408TR BARO HD9908T BARO
Sensor type Piezoresistive diaphragm
Measuring range 800 ÷ 1100 mbar / 600 ÷ 1100 mbar on request
Analog output
0 ÷ 1 Vdc standard;
0 ÷ 5 Vdc, 1 ÷ 5 Vdc,
1 ÷ 6 Vdc and 4 ÷ 20 mA
( two wires) on request
0 ÷ 1 Vdc standard;
0 ÷ 5 Vdc, 1 ÷ 5 Vdc and
1 ÷ 6 Vdc on request
0 ÷ 20 mA, 4 ÷ 20 mA,
0 ÷ 1 V and 0 ÷ 5 V ( 0 ÷ 10 V on request) , configurable by means of a jumper.
Accuracy ± 0.4 mbar, @ 20° C ± 0.4 mbar, @ 20° C
Display: ± 1 mbar, @ 20° C
Analog output: ± 0, 8 mbar, @ 20° C
Resolution Infinite
Display: 1 mbar
Analog output: Infinite
Temperature drift
< 1% F.S., zero;
Prioritas Indotrade