Temperature and humidity sensors for usage into air condition ducts with 4–20 mA output

The programmable sensors are intended for temperature measurements and measurements of relative humidity of air in air conditioning ducts. The sensor consists of electronic circuits placed in the durable plastic box with the connection terminal board, the metal stem and the sensing element for temperature and humidity located in the cover. The plastic connection head is provided by the cable ending. The basic length of the stem is 150 mm. Electronic circuits with the microprocessor and connection terminal board are placed in the connection head. The sensor is fixed by fastening of the metal stem into a grommet. The flanges PP4 or PP90 canbe also used (they are not a part of delivery).

Digital conception with microprocessor provides long-term stability of parameters, temperature compensation of the humidity sensing element and failure state signaling. The most up to date polymeric sensing element for humidity guarantees stability of indication and resistance to condensation water.

Two galvanically separated current signals 4 to 20 mA are available as output signals of the measured variables; the outputs are set by the producer as follows:

the value on the output I1: relative humidity, range 4 to 20 mA is related to 0 to 100 % RH

the value on the output I2: temperature, range 4 to 20 mA is related to -30 to +125 °C.

A calibration sheet and program TSensor for sensor configuration by means of USB cable SP003 are included in the sensor price.

The sensors are designed to be operated in a chemically non-aggressive environment..

Used sensing elements: Pt 1000/3850

			Temperature and humidity sensors for usage into air condition ducts with 4–20 mA output - prospectus