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RTC t
room CO2 switch
These CO2 room switches measure the concentration of CO2 in the air (with four predefined ranges or a user-definable range), using a self-calibrated and maintenance-free sensor with NDIR technology.
K E Y F E AT U R E S
Microcontroller based design increases accuracy and reduces installation time
Blue LED operation indication
Excellent long term stability with NDIR CO2 sensor
Innovative self-calibrating algorithm
Different CO2 ranges selectable by jumper
Setpoint selectable by trimmer
T E C H N I C A L S P E C I F I C AT I O N S
Article code
RTC-G
RTC-F
RTC-G
Supply
RTC-G 15-24 VAC ±10 %/18-34 VDC
RTC-F 18-34 VDC
In & outputs
C/O relay output
Range
Jumper selection: 450 to 1.850 ppm/0 to 1.000 ppm/0 to 1.500 ppm/0 to 2.000 ppm
Hysteresis
100/150/200/250 ppm
Power consumption
Max. 50 mA (peak up to 430 mA for 10 ms)
Max. 70 mA (peak up to 450 mA for 10 ms during 4 sec period)
Other specifications
Operating temperature: -10 to 50 °C
AREA OF USE
Maintaining CO2 level in buildings and private houses
WIRING DIAGRAM
Vin
GND
NC1
COM1
NO1
positive DC voltage/AC ~
ground
relay output - normally closed (230 VAC/2 A)
relay output - common (230 VAC/2 A)
relay output - normally open (230 VAC/2 A)
If an external AC/DC powered device (G series) is using the same safety transformer
as a DC powered device (F series), a SHORT CIRCUIT in the source may result when
connecting three-wire applications (common ground)!
24/03/2014
S.1.5.R.6
66
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