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Severe contamination and high concentration of moisture reduce the lifetime of the sen-
sors significantly. Poisoning of the sensors occurs if they are exposed to silicone vapour
and solvents, (painting work), freons (old cooling systems) or vapour from leaded petrol
and polyester resins while they are switched on.
In order to prevent damage to the sensors it is recommended that the gas detector is
switched off under the conditions named above or even to remove the sensors from the
ship temporarily.
N.B. The presence of petrol vapour and CO will then no longer be detected. Do not
forget to consider safety!
The sensor ages while being used to measure the concentration, and this is faster dur-
ing continuous than during intermittent use. After about 2 years of continuous use the
sensor will have aged, see ‘4 Ageing of the sensor’.
2.1 Contents of the pack
1 Instrument PD1000
1 Sensor
1 Cable for connecting sensor (5 metres)
2 Screws for fitting the sensor
1 Manual
Gas detector PD1000