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RAIL VEHICLE SENSORS AIR DUCT CO2 MONITORING AND CONTROL

The CO2 sensor KSC 122 with RS 485 (MODBUS) Output is intended for installation in railway vehicle air-conditioning ducts.
The sensor can be used for any control systems compatible with the output signal RS 485 (MOBDUS). The working range is specified in the table of technical parameters. The sensors meet the ingress protection of IP 65 according to ČSN EN 60 529..
The sensor can be used for any control systems compatible with the MODBUS RTU communication protocol; communication takes place through the RS 485 bus. The working range is specified in the table of technical parameters. The sensors meet the ingress protection of IP 65 according to ČSN EN 60 529.
The sensors consist of a plastic head, which houses a transducer to convert the CO2 concentration to a MODBUS RTU output signal. The measuring sensor is located in an external probe which is firmly connected to the electronics head. The probe cannot be disconnected from the head with electronics. The supply cable is connected to the terminal board through a grommet, which is a part of the plastic head. The base material of the head is LEXAN™ RESIN – EXL 5689. The sensor stem consists of two materials – stainless steel and Teca form. Sensor is ensured by the unique „S head“design invented by SENSIT s.r.o

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Sensor type KSC 122
Measuring value CO2
Output signal RS 485 / MODBUS RTU
CO2 measuring range* 0 to 5000 ppm
CO2 measuring accuracy* ± 50 ppm (+3 % of measured values)
Temperature and pressure dependence ± (1 + measured value of CO2 / 1000) ppm/°C 0.014 % of measured value of CO2/mbar
Response rate 60 s
UCC supply voltage range 16.8 to 30 VDC
Recommended UCC supply voltage 24 VDC
Tests
Shock and vibration tests category 1, class B in accordance with EN 61373, as amended
Elektromagnetic compatibility in accordance with EN 50121-3-2, as amended
Insulation test 1.5 kVDC for time 1 minute in accordance with EN 50155, as amended
Fire protection resistance in accordance with EN 45545 (possible acc. to NFPA 130), as amended

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