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Probes connection and eventual battery
Legend setting switches
S1) switch group reserved to the probe N° 1
S2) switch group reserved to the probe N° 2
S3) switch group reserved to the probe N° 3
S4) switch group reserved to the probe N° 4
1) Selection of positive safety
2) Operating mode of the main alarm relay.
3) Selection of MEMORY. N.B. You can remove the
selection of memory when the gas CO is selected.
4)
Selecting OXYGEN mode
12 V
1 2 3 4 5 6 7 8
+
+
Opti onal
3 2 1
Probe 1
3 2 1
Probe 2
3 2 1
Probe 3
3 2 1
Probe 4
R1 R2 R3 R4
WARNING.
Before connecting to the mains power, ensure the voltage is correct.
Carefully follow the instructions and the connections according to Regulations in force, keeping in
mind that the signal cables should be laid separate from the power cables.
An automatic cut-off switch (appropriately identified as devicesectioning of the detector) should be
incorporated in the electrical system, adequatelylocated and easily accessible.
Electrical Connections
Diagram of the terminal block relay
Power supply
110/230 VAC
PH N 4 5 6 7 8 9 10 11 12
C
N C
NO
C
N C
NO
C
N C
NO
C
N C
NO
Fault 1°Threshold 2°Threshold Main Alarm
PLEASE NOTE!
All relays are free of voltage
Switch 1
Intrinsic safety selection
Switch 2
Main alarm relay functioning mode
Switch 3
Maintaining of the memory of alarm,only when
you set the CO gas
Switch 4
Selecting OXYGEN mode
Power terminal block Sensors terminal block
S1 S2 S3 S4 1 2 3 4
Deleting or disabling the probes
monitored gas type selection
