INDOOR TEMPERATURE AND RELATIVE HUMIDITY SENSOR WITH RS 485 (MODBUS) OUTPUT

GKSTH102R
2 to 3 weeks

Sensor type KSTH 102

Temperature measurement range -40 ° C to 80 ° C

Temperature measurement accuracy ± 0,5 ° C in the range of 0 ° C to 65 ° C

± 0,7 ° C in the range 65 ° C to 80 ° C

± 1,1 ° C in the range of -40 ° C to 0 ° C

Relative humidity measurement range from 0 to 95%

Relative humidity measurement accuracy ± 3% in the range of 10 to 90%

± 4,5% in the range of 0 to 10% and 90 to 95%

RS 485 / MODBUS RTU output signal

Supply voltage U 15 to 30 VDC

Nominal supply voltage Un 24 VDC

Maximum consumption: 500 mW

typical: 250 mW

Protection class IP 30 according to EN 60529

Head dimension 71,9 x 59 x 27 mm

LEXAN head material (conforms to EN 45545-2)

Min weight 35 g

Recommended wire cross section 0,14 to 1 mm2

Tests

Shock and vibration tests

category 1, class B according to EN 61373

Electromagnetic compatibility according to EN 50121-3-2

Insulation test 1,5 kVDC for 1 minute according to EN 50155

Fire resistance

according to EN 45545 (possible according to NFPA 130)

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The temperature and relative humidity sensor - KSTH 102 is designed to measure the temperature and relative humidity of the air in spaces protected from water. In the segment of railway vehicle applications, it is used to measure the two variables in the passenger compartments of train units and wagons and is part of the temperature and relative humidity control system.

The temperature and relative humidity sensor - KSTH 102 consists of a plastic ribbed head, where a printed circuit board with the individual sensors and a converter is placed to establish communication via the RS 485 bus. relative humidity are measured by a common internal sensor whose signal is processed in a microprocessor and is converted into an output signal of MODBUS RTU. The sensors comply with IP 30 protection according to EN 60 529, as amended. Appropriate design and high-quality materials ensure that the sensors are not disturbing, even in interiors with high aesthetic requirements. You can choose the color of the box white or gray.

The temperature and relative humidity sensor - KSTH 102 is designed to operate in a chemically non-aggressive environment; the use should be chosen based on the temperature and chemical resistance of the sensor head and individual sensors. The operating conditions to establish the correct function are:

- Ambient temperature near the sensor: -40 to 80 ° C

- Ambient relative humidity: 0 to 95% (humidity without condensation)

- Atmospheric pressure: 87 to 106 kPa

TESTS, DECLARATION, CALIBRATIONS

The type tests are carried out by a notified body according to standard EN 50 155, as modified Railway applications - Electronic equipment used on rolling stock, Art. 12.2.7, 12.2.8, 12.2.9, 12.2.11

- Art. 12.2.7, 12.2.8 according to EN 50121-3-2 - Electromagnetic compatibility

- Art. 12.2.9 according to EN 50155 - insulation test

- Art. 12.2.11 according to EN 61373 - shock and vibration tests

The materials of the plastic box and the PCB meet a set of requirements for R 24 materials according to Table 5 for the fire risk level HL1-HL2-HL3 of the standard EN 45545-2: 2014. The materials also meet the requirements of NFPA 130 fire safety standard, as amended.

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