ds-dtc0 pages
DTC t
duct CO2 switch
These CO2 duct 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 fe a t u r es
Microcontroller based design increases accuracy
Excellent long term stability with NDIR CO2 sensor
Innovative self-calibrating algorithm
Different CO2 ranges selectable by jumper
Setpoint selectable by trimmer
Te c h n i c a l spe c i f i c a t i o n s
Article code
DTC-G
DTC-F
Supply
DTC-G 15-24 VAC ±10 %/18-34 VDC
DTC-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
Jumper selection: 100/150/200/250 ppm
Power consumption
No load: max. 50 mA (peak up to 430 mA for 10 ms in 4 s period)
Full load: max. 70 mA (peak up to 450 mA for 10 ms in 4 s period)
Other specifications
Operating temperature: 0 to 50 °C
A r e a o f u se
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)!
07/03/2014
S.1.5.D.6
85
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