TEMPERATURE AND HUMIDITY TRANSMITTERS

HD 9008 TR... Dual meteorological transmitter of relative humidity and configurable temperature. Measuring range: temperature -40°C...+80°C, relative humidity 5...98%.RH.,
HD 9009 TR... Dual meteorological transmitter of temperature and relative humidity.
Measuring range: configurable temperature -40°C…+80°C, relative humidity 5…98%R.H.

CHARACTERISTICS

H 6100 capacitive humidity sensor.
Pt1 00 temperature sensor.
Output 4÷20mA (three-wire connection).
Power supply 9 Vdc 40 Vdc for the model HD 9008T. 
Output 0÷1 Vdc.
Power supply 5÷35 Vdc for the model HD 9009T.
Both the models are an inbloc relative humidity and temperature transmitters.
The sensors are fitted at the end of a plastic
material tube and are protected against dust
by a stainless steel filter.

SIGNAL TRANSMISSION
The electronic circuit is designed in such a way that there is a linear increase of the signal as humidity and temperature increase.
In the presence of cables transmitting strong currents or machines that provoke electromagnetic disturbances, the transmitter connection cables must be laid in a separate channel or at a certain distance so that the disturbances are screened.

INSTALLATION
Precision of measurement does not depend on the position of the transmitter; minimize the accumulation of dust on the stainless steel filter. The transmitter must not be installed in the immediate vicinity of a source of heat, as the heating of the air leads to a decrease of the relative humidity (with the same amount of water vapor present) close to doors or draughts.

ASSEMBLY
The electronics are housed in a sturdy plastic material container (degree of protection 1 P 54).
For the connections, see the drawings and diagrams. 
Once installation is complete, cheek that the container is perfectly closed; the same applies to the grommet.

ORDERING CODES
HD 9008 TR Dual meteorological transmitter of relative humidity and configurable temperature. Measuring range: temperature -40°C...+80°C, relative humidity 5...98%.RH.,
4mA correspond to -40°C and 0%RH., 20mA correspond to +80°C and 100%R.H.
Power supply 9...40Vdc. Probe ø 26 mm L= 185 m
HD 9008TR.1 Dual meteorological transmitter of temperature and relative humidity.
Temperature measurements with 2 wire Pt100 sensor . Measuring range: relative humidity 5…98%R.H. 4mA correspond to 0%R.H., 20mA correspond to 100%R.H.
Power supply 9…40Vdc. Probe ø 26 mm L= 185 mm.
HD 9008TR.2 Dual meteorological transmitter of temperature and relative humidity.
Temperature measurements with 4 wire Pt100 sensor . Measuring range: relative humidity 5…98%R.H. 4mA correspond to 0%R.H., 20mA correspond to 100%R.H.
Power supply 9…40Vdc. Probe ø 26 mm L= 185 mm.
HD 9009 TR Dual meteorological transmitter of temperature and relative humidity.
Measuring range: configurable temperature -40°C…+80°C, relative humidity 5…98%R.H.,
0Vdc correspond to –40°C and 0%R.H., 1Vdc correspond to +80°C and 100%R.H.
Power supply 5…35Vdc, 2mA. Probe ø 26 mm L= 185 mm.
HD 9009TR.1 Dual meteorological transmitter of temperature and relative humidity.
Temperature measurements with 2 wire Pt100 sensor . Measuring range: relative humidity 5…98%R.H. 0Vdc correspond to 0%R.H., 1Vdc correspond to 100%R.H.
Power supply 5…35Vdc, 2mA. Probe ø 26 mm L= 185 mm.
HD 9009TR.2 Dual meteorological transmitter of temperature and relative humidity.
Temperature measurements with 4 wire Pt100 sensor . Measuring range: relative humidity 5…98%R.H. 0Vdc correspond to 0%R.H., 1Vdc correspond to 100%R.H.
Power supply 5…35Vdc, 2mA. Probe ø 26 mm L= 185 mm.
HD 9007 A1: protection with 12 rings L=1 90 mm complete with brackets.
HD 9007 A2: protection with 16 rings L=240 mm complete with brackets.