HD408T, HD4V8T are analog output relative or differential atmospheric
pressure transmitters; they are used in all those applications where non
corrosive air or gas need to be monitored, with pressure fields from 10
mbar to 2000 mbar. The piezoresistive sensor gives extremely precise and
stable measurements of the applied differential pressure, with excellent
repeatability, low hysteresis, and very good temperature stability.
The output signal of the sensor is conditioned to provide either a current
output (model HD408T) or a voltage output (model HD4V8T) linearly
proportional to the applied differential pressure.
The transmitters are ready to use as they have been calibrated at the
factory. They are used to monitor clean room barometric pressure, to
control filters, to measure flows (employment with the Pitot tube), for
packing and packaging machines, and to control ventilation.
