Operating; Switching On And Off; Continuous Or Intermittent Check For The Presence Of Gas; Testing - Vetus PD1000 Instructions D'installation Et Mode D'emploi

3 Operating

3.1 Switching on and off

Switching on : Briefly press the button once.
DETECTOR
Switching off : Press the button and hold down
PETROL VAPOUR - CO
for 5 seconds.
After switching on the gas detector will check for the
CONT
presence of gas continuously.
The LED above the button will come on. This LED
1 SENSOR 2
will flash if the battery voltage is too low.
The gas detector is switched on automatically when
the power supply is switched on. This is to prevent you
TEST
from forgetting to switch it on.
vetus
The sensor will have warmed up after about 1 minute and the gas detector can then
detect the presence of gas reliably. A test is carried out while the sensor is warm-
ing up to see if a sensor is connected and if it is functioning correctly.

3.2 Continuous or intermittent check for the presence of gas

The gas detector can be used to check for the presence of gas in either continuous or
intermittent mode according to choice.
The gas sensors are switched on for 1 minute and then off for 2 minutes when in inter-
mittent mode. The average power consumption is lower in this mode than when used
continuously.
The gas detector is set standard to continuous mode.
Changing from continuous mode to intermittent mode or vice versa is done by pressing
the button. The green LED above the button is on when in continuous mode.
CONT CONT
If the fuel shut off valve is opened the gas detector is automatically set to continuous
mode, see 3.7.
Use continuous mode when people are on board.
Use intermittent mode when you are not on board the ship.

3.3 Testing

The working of the gas detector can be tested by activating the test cycle. A false alarm
is given for 7 seconds after pressing the button. The following are tested during
TEST
this false alarm:
- the working of the sensors
- the working of the acoustic alarm
- the correct functioning of the operation of the fuel shut off valve and the fan; the fuel
shut off valve is closed and the fan switched on.
The gas detector checks continuously that the sensor or sensors are connected and
functioning correctly. An alarm is given if this is not the case.
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100106.01 Gas detector PD1000