Vetus PD1000 Manual De Instalación Y Usuario página 18

3 Operating
3 1 Switching on and off
Switching on : Briefly press the
Switching off : Press the
5 seconds.
After switching on the gas detector will check for the pres-
ence of gas continuously.
The LED above the
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 from
forgetting to switch it on.
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 warming 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 intermit-
tent mode according to choice.
The gas sensors are switched on for 1 minute and then off for 2 minutes when in intermittent
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
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
- 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 function-
ing correctly. An alarm is given if this is not the case.
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button once.
button and hold down for
button will come on. This LED will
button is on when in continuous mode.
CONT
button. The following are tested during this false alarm:
TEST
DETECTOR
PETROL VAPOUR - CO
CONT
1 SENSOR
TEST
vetus
Gasdetector PD1000
2