Phau Ntawv Qhia

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www.vtsgroup.com Page 8 of 16 ver. 2.0 (11.2021)
Note: the configuration set by the means of DIP-switches is read once after device restart
(after switching on the power or pressing the RESET button). For this reason, if the DIP-
switch settings are changed during operation, then after changing the settings, it is
necessary to restart the device by pressing the RESET button or temporarily unplugging the
power supply.
3.5. LED indicators
3.5.1. LED POWER
No.
Description
Color / mode of light
1
Power supply present
Red – flashing 1000 ms / 1000 ms
3.5.2. LED LINK
No.
Description
Color / mode of light
1
Data transmission on the bus
Green – continuous light / irregular flashing
2
No transmission
LED off
3.5.3. LED SENSOR
No.
Description
Color / mode of light
1
Warm up of the CO2 module
Green – flashing 250 ms / 250 ms
2
0 – 799 ppm
Green – continuous light
3
800 – 1199 ppm
Yellow – continuous light
4
1200 – 1999 ppm
Red – continuous light
5
≥ 2000 ppm
Red – flashing 1000 ms / 1000 ms
6
Sensor missing or other error
Red – flashing 100 ms / 600 ms