STH 104 Temperature and Relative Humidity with Output CAN

The STH 104 temperature and relative humidity sensor is designed to measure the temperature and relative humidity of the air in spaces protected against water.

The STH 104 temperature and relative humidity sensor consists of a plastic ribbing head where a printed circuit board with the individual sensors and a converter is placed to establish a communication via the CAN bus. The temperature and relative humidity are measured by a common internal sensor whose signal is processed in a microprocessor and is converted to a CAN open output signal with CiA DS 301 specification. The sensors meet the ingress protection of IP 30 according to EN 60 529. Suitable design and high-quality material ensure that the sensor does not feel disturbing even in the interiors with high aesthetic requirements. You can choose the colour of the box white or grey. 
The STH 104 temperature and relative humidity sensor is designed to be operated in a chemically non-aggressive environment; its use must be chosen regarding temperature and chemical resistance of the individual sensors. The operating conditions to establish the correct function are:
  • ambient temperature in the vicinity of the sensor: -40 to 80 °C
  • relative ambient humidity: 0 to 95% (non-condensing humidity)
  • atmospheric pressure: 87 to 106 kPa

Tests, Declarations, Calibration

  • Manufacturer provides EU Declaration of Conformity.
  • Calibration – The final metrological inspection – comparison with standards or working instruments – is carried out for all the products. Continuity of the standards and working measuring instruments is ensured within the meaning of the Section 5 of Act no.505/1990 on metrology. The manufacturer offers a possibility to supply the sensors calibrated in SENSIT s.r.o.’s laboratory (according to requirements of the EN ISO/IEC 17025 standard) or in an Accredited laboratory.

Specification

Sensor type STH 104
Temperature measurement range -40 to 80 °C
Temperature measurement accuracy ± 0.5 °C in the range from 0 to 65 °C
± 0.7 °C in the range from 65 to 80 °C
± 1.1 °C in the range from -40 to 0 °C
Relative humidity measurement range 0 to 95 %
Relative humidity measurement accuracy ± 3 % in the range from 10 to 90 %
± 4.5 % in the range from 0 to 10 % and 90 to 95 %
Output signal CAN / CANopen – CiA DS 301
Galvanically separated no, acc. to customer could be galvanically separated
Supply voltage U 15 to 30 VDC
Rated supply voltage Un 24 VDC
Consumption maximum: 500 mW
typical: 300 mW
Ingress protection IP 30 in accordance with EN 60529, as amended
Dimension of the head 71.9 x 59 x 27 mm
Material of the head LEXAN
Weight min 35 g
Recommended wire cross section 0.14 to 1 mm2

Dimensional Draft

Wiring Diagram

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