Connections; Power Supply; Fuel Shut Off Valve; External Alarm - Vetus PD1000 Instructions D'installation Et Mode D'emploi

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5.3 Connections

Connect the gas detector as shown in '8 Wiring diagram'.

5.3.1 Power supply

The gas detector is suitable for both 12 and 24 Volt.
The fuse in the plus wire of the gas detector only protects the gas detector itself and
does not protect any fuel valve, alarm or fan connected!

5.3.2 Fuel shut off valve

An electrically operated shut off valve can be connected to the output 'VALVE'. The shut
off valve can be included in the fuel supply line to the engine, for example. In the event
of an alarm situation the shut off valve will be closed automatically so shutting off the
fuel supply to the installation.
The fuel shut off valve must operate at the same voltage as the power supply to the
installation, either 12 or 24 volt direct current respectively. The output 'VALVE' is suitable
for a fuel shut off valve requiring a current of maximum 1 A. Fit a 1 A fuse in the plus
wire to the fuel valve. NB: the gas detector switches the minus connection (-, earth) to
the fuel valve!

5.3.3 External Alarm

An external alarm (for example, a hooter or buzzer) or a contact for an alarm system can
be connected to the output 'ALARM'.
If there is an alarm situation the external alarm will be switched on automatically.
The external alarm (hooter or buzzer) must operate at the same voltage as the power
supply to the installation, either 12 or 24 volt direct current respectively.
The output 'ALARM' is suitable for a hooter or buzzer requiring a current of maximum 1
A. Fit a 1 A fuse in the plus wire to the hooter or buzzer. NB: the gas detector switches
the minus connection (-, earth) to the hooter or buzzer!
5.3.4 Ventilator
An electric fan can be connected to the output 'FAN'. The fan is to replenish the air in
the room being monitored.
If there is an alarm situation the fan will be switched on automatically.
The fan must be ignition protected!
The fan must operate at the same voltage as the power supply to the installation, either
12 or 24 volt direct current respectively.
The output 'FAN' is suitable for a fan requiring a current of maximum 1 A. Fit a 1 A fuse
in the plus wire to the fan. NB: the gas detector switches the minus connection (-, earth)
to the fan!
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Gas detector PD1000 100106.01