TEMPERATURE, RELATIVE HUMIDITY, CO2, PRESSURE AND VOC SENSORS - MODBUS RS 485 KSTHCPV 102

GKSTHCPV102R
In production :  1 to 3 weeks

Sensor type KSTHCPV 102

Measured values ​​temperature, relative humidity, atm. pressure, VOC, CO2

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

- 40 to 80 ° C without guaranteed precision of CO2 measurement

- 40 to 80 ° C in the short term

Temperature measurement accuracy * ± 0,5 ° C at 25 ° C temperature

± 1,0 ° C in temperature from 0 to 65 ° C

Relative humidity measurement range * 0 to 85% with guaranteed accuracy of CO2 measurement

0 to 95% without guaranteed accuracy of CO2 measurement

Relative humidity measurement accuracy * ± 3% in the range of 20 to 80%

± 4,5% in the range 0 to 19% and 81 to 95%

CO2 measurement range * 400 to 5000 ppm

CO2 measurement accuracy * ± 100 ppm *

CO2 response time (90%) 90 s

VOC measurement range (IAQ index) * 0 to 500

VOC measurement accuracy * ± 15%

Atmospheric pressure measurement range * 300 to 1100 hPa

Atmospheric pressure measurement accuracy

(in the temperature range 0 to 65 ° C,

in the range 300 to 1100 hPa) absolute deviation ± 0,6 hPa

long term temperature stability: ± 1,0 hPa

Atmospheric pressure measurement accuracy

(in a temperature range of 25 to 45 ° C,

in the range 700 to 1100 hPa) absolute deviation ± 0,12 hPa

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 cross section 0,14 to 1 mm2

Min weight 35 g

* The measuring ranges and accuracies given 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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Temperature, Relative Humidity, Atmospheric Pressure, CO2 and VOC Sensor - KSTHCPV 102 is designed to measure carbon dioxide concentrations, air temperature, relative air humidity, atmospheric pressure and concentrations of volatile organic compounds. In the segment of railway vehicle applications, it is used to measure all variables in passenger compartments of train units and wagons and is part of the control system for temperature, relative humidity, atmospheric pressure and air quality.

The KSTHCPV 2 temperature, relative humidity, atmospheric pressure, CO102 and VOC sensor consists of a plastic ribbed head containing a printed circuit board with the individual sensors and a converter to establish communication via the bus RS 485. Temperature, relative humidity, atmospheric pressure and VOCs are measured by a common internal sensing element whose signal is processed in a microprocessor and converted into a MODBUS RTU output signal. 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, there is an auto-calibration function available to set the sensor to the CO2 value minimum corresponding to the outdoor concentration level. The KSTHCPV 2 temperature, relative humidity, atmospheric pressure, CO102 and VOC sensor meets the protection index IP 30 according to standard EN 60529, as amended. The pleasant design and high quality materials ensure that the KSTHCPV 2 temperature, relative humidity, atmospheric pressure, CO102 and VOC sensor does not appear intrusive, even in interiors with high aesthetic requirements. You can choose the color of the box white or gray. It is recommended to install the KSTHCPV 2 temperature, relative humidity, atmospheric pressure, CO102 and VOC sensor on an interior wall at a height of 1,5 m, in areas with moving people, not exposed to direct sunlight and not influenced by heat from walls, heat sources or lighting.

The KSTHCPV 2 temperature, relative humidity, atmospheric pressure, CO102 and VOC 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 individual sensors. Correct operation of the CO2 sensor requires the following operating conditions:

Ambient temperature around the sensor: 0 to 45 ° C

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

Atmospheric pressure: 87 to 110 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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