S&P AIRSENS CO2 Manuel D'instructions page 15

Fig. 2: Operating modes
MF1: Relay + Modbus
(reading)
Adjustable relay via P1
potentiometer
MF2: 0-10Vdc output
+ Modbus (reading)
Adjustable α angle via
P1 potentiometer
MF3: 2 -10Vdc output
+ Modbus (reading)
Adjustable α angle via
P1 potentiometer
MF4: Modbus control
Access to all operating modes and parameters via Modbus
communications (see Fig.3).
Note: If other switch combination is chosen, LED diffuser is switched off and digital/
analogue signals are inoperative.
Relé
Relay
Relais
Output
10V
0V
450ppm 800ppm
45%HR 60%HR
Output
10V
2V
450ppm 800ppm
45%HR 60%HR
Histéresis
200ppm
1000ppm 2000ppm Setpoint
2000ppm Input
100%HR
2000ppm Input
100%HR
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