S+S Regeltechnik AERASGARD KCO2-SD-TYR2 Notice D'instruction page 7

G
Mounting and Installation
ATTENTION!
The minimum CO concentration of outdoor air amounts to ca. 350 ppm (output voltage = 1.75 V) in leafy, hardly industrialized areas. Gas inter-
2
exchange in the sensor element happens by diffusion. Depending on changes in the CO
sensor, the reaction of the device to changes in CO
position so that the air stream "presses" into the duct tube. Otherwise, below-atmospheric pressure will develop in the duct tube that may cause a
substantial slow down of gas exchange or even prevent it.
Manual calibration of carbon dioxide measurement
Due to the dual-beam measuring system used, automatic calibration is not used. Instead, the output value can be corrected by up to ± 500 ppm by
means of the corresponding calibration potentiometer if required.
Putting in operation
After switching on the device, a self-test and tempering period follows. This procedure takes 3 to 5 minutes, depending on ambient conditions. During
this time, the output analog voltage differs from the actual measured value.
Connecting diagram
1 UB– GND
2 UB+ 24V AC/DC
3 Output CO 0-10V in ppm
2
Connecting diagram
UB– GND
1
2 UB+ 24V AC/DC
3 Output CO 0-10V in ppm
2
4 GND
5 Output temperature 0-10V
6 n.c.
AERASGARD ® KCO - SD - TYR 2 – Duct CO
2
®
AERASGARD KTM - CO
Type ⁄ WG02
KCO - SD - TYR2
2
K C O 2 - S D - U T Y R 2
KTM - CO - SD - TYR2
2
K T M - C O 2 - S D - U T Y R 2
Note:
concentration may appear with a delay. It is absolutely necessary to choose the device mounting
2
KCO - SD - TYR2
2
KTM - CO - SD - TYR2
2
in °C
sensors, Standard
2
- SD - TYR 2 – Duct CO
2
Measuring Range
CO Temperature
2
(switchable)
0...2000 ⁄ 5000 ppm
(switchable)
0...2000 ⁄ 5000 ppm
This unit must not be used as safety-relevant device!
concentration and flow velocity of the air surrounding the
2
Schematic diagram
DIP
OFFSET
°C
CO ²
DIP 1
ON = 5000 ppm
OFF = 2000 ppm
measuring transducers, Standard
2
Output
CO Temperature
2
– 0 -10 V
0...+50 °C 0 -10 V
KTM - CO
sensor
CO ²
1 2 3 4 5 6
Item No.
– 1501- 8110- 1000-300
0 -10 V 1501- 8112- 1000-300
KCO - SD - TYR2
2
- SD - TYR2
2