12
EN
Note: If another switch combination is chosen, LED diffuser is switched off and
digital/ analogue signals are inoperative.
On electronic board there are three LEDs (see Fig.1) with the following functions:
LED
Colour
Operation
16
Red
ON: Modbus communication failure
17
Red
ON: Supply voltage
Flashes: See Pairing paragraph
18
Yellow
ON: Modbus comunication
LED diffuser
The device displays a real-time concentration level. In operation mode 1, the illu-
mination is two-color while in modes 2, 3 and 4 this is three-color. Light intensity
is adjustable via P2 potentiometer (see Fig.1) from OFF to 100%.
Relay + Modbus (reading) – [SW1-4=OFF]
Green: Value below set point.
Red: Value above set point.
Other modes
Green: ≤ 800ppm / ≤ 60%HR
Orange: 800 – 1200ppm / 60 – 80%HR
Red: > 1200ppm / > 80%HR
Special limits are provided in the LED diffuser for cases where AIRSENS RF CO2
or VOC is installed in an area with permanently high concentration. This special
mode is activated by SW4=ON.
New colour limits
Green: ≤ 950ppm
Orange: 950 - 1350ppm
Red: > 1350ppm
Modbus registers
Operating modes MF1, MF2 and MF3 allow only reading Modbus communication.
It means access to all Modbus registers (see Fig.3) to visualize parameters. If
MF4 mode is selected, total control with visualization and modifi cation of param-
eters. Potentiometers P1 and P2 are disabled in MF4 mode.
In cases where a network communication net is made for multiple controls, it
will be necessary for all devices to remove jumper J9 (see Fig.1) except for the
last unit that will be kept (default from factory).
