INSTRUCTION
i
Read this instruction before installation
and wiring of the product
1
CO2DT-R
CO
2
-transmitter for duct mounting
CO2DT-R is a transmitter for measuring
carbon dioxide (CO
2
) concen-
tration in exhaust air. Measuring range 0...2000ppm and relay output.
CO2DT-R is intended for duct mounting.
Technical data
Measuring principle
NDIR (Non-Dispersive Infrared
Technology)
Measuring range
0...2000 ppm
Inaccuracy at 20°C
< ±(50 ppm + 2% of the measured value)
Temp. influence
typ. 2 ppm / K
Long term stability
typ. 20 ppm / year
Time constant
< 120 seconds
Warm-up time
< 5 minutes
Ambient temperature
-5...55°C
Humidity
0...90 % RH non condensating
Protection class
IP65 with probe downwards, otherwise
IP20
Mounting
CO2DT-R should be mounted at a place in the duct where it can be
expected to give a representative reading. The transmitter should be
placed at least 4 duct diameters after a bend for minimal turbulence.
Open the front cover by removing the screws on the cover with a screw-
driver.
CO
2
sensing element
air flow direction
Wiring
Supply voltage
24 V AC ±20%, 50...60 Hz or 15...35 V DC
Consumption 3 W.
1
Supply voltage 24 V AC/DC or 15...35 V DC
2
System neutral
3
Common
4
Normally open
5
Normally closed
Hysteresis and level
switching
of
f
ppm
2000
1000
500
relay
st
atus
switchin
g
on
ON
OFF
Hysteresis [% of the set measuring range]
Level [% of measuring range]
25% of
measuring
range
Start-up
After applying power to CO2DT-R, it will take a few minutes before it
shows correct values.
Calibration
CO2DT-R is factory calibrated before delivery and does not need to
be calibrated at installation.
CO2DT-R is calibrated automatically, which means that manual recali-
bration is not required during the lifetime of the sensor.
EMC emissions & immunity standards
This product conforms to the requirements of the EMC Direc-
tive 2004/108/EC through product standards EN 61000-6-1 and
EN 61000-6-3.
RoHS
This product conforms to the Directive 2011/65/EU of the European
Parliament and of the Council.
Contact
AB Regin, Box 116, 428 22 Kållered, Sweden
Tel: +46 31 720 02 00, Fax: +46 31 720 02 50
www.regincontrols.com, [email protected]
6742G
JUL
Y 19
EN
