Regin CTDT2 Manuel D'instructions

INSTRUCTION
EN
CTDT2
i
Read this instruction before installation
and wiring of the product
CO and temperature transmitter for duct
2
mounting
Transmitter for measuring carbon dioxide concentration and tempera-
ture in extract air. Settable CO output signal 0...10 V DC or 4...20 mA
2
via DIP-switch. Passive PT1000 output and 0...10 V DC for tempera-
ture.
Technical data
CO
2
Measurement principle NDIR (Non-Dispersive Infrared
Technology)
Measuring range 0...2000 ppm
Accuracy (at 25°C) < ± (50 ppm + 2 % of the measured
value)
Time constant (response time) < 100 s at 3 m/s air speed in the duct
Temperature dependance Typ. 1 ppm CO
Temperature
Accuracy (at 20°C) ±0.3°C
Time constant (response time) < 50 s
General
Supply voltage
Power consumption
Ambient temperature
Storage temperature
Ambient humidity
Long-term stability
Warm-up time
Protection class
Dimensions
12
~200
Installation
Mount CTDT2 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.
/°C (-20...+45°C)
2
The air flow direction is either from right to left (as in the example above) or from left
to right.
24 V AC ±20 %, 50...60 Hz, 2 VA
15...35 V DC
15 mA, max. 0.5 A for 0.3 s
-20...+60°C
-20...+60°C
0...95 % RH, non-condensing
Typ. 20 ppm / year
< 5 min (only applies to CO )
2
IP65 with probe downwards, otherwise IP20
See below (measurements in mm)
46
80.6
101
Sensor element,
CO
2
Sensor element,
temperature
Air flow direction
CTDT2
Wiring
1 Supply voltage 24 V AC or 15...35 V DC
2 System neutral
3 Signal neutral
4 CO output 0...10 V DC / 4...20 mA
2
5 Temperature output 0...10 V DC
6 Temperature output PT1000
7 Temperature output PT1000
Note: System neutral and signal neutral are internally connected.
Start-up
After applying power to CTDT2, it will take a few minutes for it to
show correct values.
Calibration
CTDT2 is factory calibrated before delivery and does not need to
be calibrated at installation. It has automatic CO
means that manual recalibration is not required during the lifetime of
the transmitter.
Changing the CO output signal 0...10 V DC / 4...20 mA
2
Flipping the internal DIP-switch located at the lower right-hand side of
the circuit board will change the CO output signal from 0...10 V ("U")
2
to 4...20 mA ("I"). This change will not affect the CO
Out - C02
I U
EMC emissions & immunity standards
This product conforms to the requirements of the EMC Directive
2004/108/EC through product standards EN 61326-1 and EN 61326-
2-3.
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, info@regin.se
calibration, which
2
output range.
2
1