RCO2.T.RH.x RS485 – RLQ.T.RH RS485

Multifunction room bus unit CO2 and/or air quality sensor RS485

Application
The RCO2.T.RH.x RS485 or RLQ.T.RH RS485 multifunction room bus unit – whose signal communicates via RS485 and by means of Modbus®-RTU / S-Bus, records the CO2 content and the temperature and/or the air quality and the relative and absolute humidity in the room air, depending on the variant of the unit.

Technical Data

Power supply:24V DC ± 10 %
Power consumption:RCO2+T 12mA (max. 60mA)
RCO2+T+LQ 23mA (max. 80mA)
RCO2+T+RH 12mA (max. 60mA)
RCO2+T+RH+LQ 23mA (max. 80mA)
RLQ+T / RLQ+T+RH 18mA
Bus protocol:RS485 Modbus RTU / S-Bus
(incl. BUS LED red/green)
Configuration option:via Dip switches
(address number, parity, baud)
Address number:1 to 63 (0 not allowed)
Parity mode for Modbus:no parity, even parity, odd parity
Transmission rate:4800, 9600, 19200, 38400 Baud
CO2:MB: 0...5000 ppm, resolution 1 ppm,
measuring error ±30 ppm
Temperature:MB: 0...+50 °C, resolution 0.1 °C,
measuring error ± 0.3 °C
Air quality:1 LSB / 0...1000
0 LSB clean air
1000 LSB bad air
Relative humidity:MB: 0...+100%, resolution 1%,
Measuring error at 20...80%, ± 3
Absolute humidity:0,1gr/m³
Operating temperature:0°C...+50°C
Storage temperature:-20°C...+80°C
Humidity:< 95 % rH, non-condensing air
Terminals:Screw terminals 0.14 - 1 mm² (acc. to VDE)
Housing:Plastic, material ABS,
Colour pure white (similar to RAL 9016)
Dimensions:W x H x D 105 x 80 x 23.5 mm
Mounting:on flush-mounted box, Ø 55mm
EMC guidelines:according to EN55011 class B
Standards:CE conformity
Protection type:IP30

RCO2.T.RH.LQ RS485