INDOOR TEMPERATURE AND CO2 SENSORS WITH RS 485 OUTPUT KSTC102

GKSTC102R
In production :  3 to 5 weeks

Sensor type KSTC 102

Measured values ​​temperature, CO2

Temperature measurement range ** 0 to 45 ° C with guaranteed accuracy of CO2 measurement

- 30 to 70 ° C without guaranteed precision of CO2 measurement

Temperature measurement accuracy * ± 0,5 ° C

CO2 measurement range * 400 to 5000 ppm

CO2 measurement accuracy * ± 100 ppm *

CO2 response time (90%) 90 s

RS 485 / MODBUS RTU output signal

Supply voltage U 15 to 30 VDC

Nominal supply voltage Un 24 VDC

Maximum consumption: 500 mW

typical: 300 mW

Protection against ingress

IP 30 according to. 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 section 0,14 to 1 mm2

* The measuring ranges and accuracies mentioned for the individual sensors refer to the operating conditions when the supply voltage is connected.

** The temperature sensor can be used in the temperature range of -40 ° C to 80 ° C for a short time.

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)

Quantity

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The KSTC 2 temperature and CO102 sensor is designed to measure carbon dioxide concentration and air temperature in spaces protected from water.

The KSTC 2 temperature and CO102 sensor 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. The temperature is measured by a sensor. whose signal is processed in a microprocessor and is converted into an output signal of MODBUS RTU. The CO2 value is measured by an NDIR module whose digital signal is also converted into a MODBUS RTU output signal. For the CO2 concentration sensor, an auto-calibration function is available to set the sensor to the minimum CO2 value corresponding to the outdoor concentration level. The KSTC 2 temperature and CO102 sensor meets the degree of protection IP 30 according to EN 60529. Appropriate design and high-quality materials ensure that the sensor does not appear annoying even in interiors with high aesthetic requirements. You can choose the color of the box white or gray.

The KSTC 2 temperature and CO102 sensor is designed to operate in a chemically non-aggressive environment; its use should be chosen according to the temperature and chemical resistance of the head and the individual sensors. The operating conditions to establish the correct function are:

Ambient temperature near the sensor: 0 to 45 ° C

Ambient relative humidity: 0 to 95% (non-condensing humidity)

Atmospheric pressure: 87 to 106 kPa

TESTS, DECLARATION, CALIBRATIONS

Type tests are carried out by a notified body according to standard EN 50155, as amended, Railway applications - Electronic equipment used on rolling stock, Art. 12.2.9, 12.2.11

- Electromagnetic compatibility according to EN 50121-3-2, as amended

- Insulation test according to EN 50155, as amended

- Shock and vibration tests according to EN 61373, as amended

The product meets the parameters in accordance with EN 45545-2, as amended, Fire protection of railway vehicles - Part 2: Requirements for the fire behavior of materials and components. May be supplied with materials that meet NFPA 130 fire safety standard, as amended.

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