14
Operation
Switching off the device
Press and hold the key and key at the same time until the countdown
»3.2.1« shown in the display has elapsed.
Before the device is switched off, the visual, audible and vibration alarms are activated
for a short time.
Before entering the workplace
Switch on the device. The current measured values are shown in the display.
Observe any warning » « or fault messages » «.
If one of these special symbols is displayed, appropriate measures, refer to page 30
to page 33, must be taken.
WARNING
Before any measurements relevant to safety are made, check the adjustment with a
bump test, adjust if necessary and check all alarm elements. If national regulations
apply, a bump test must be performed according to the national regulations. Faulty
adjustment may result in incorrect measuring results, with possible serious
consequences.
WARNING
In an oxygen enriched atmosphere (>21 vol. % O
2
), the explosion protection cannot
be guaranteed; remove instrument from the explosion-hazard area.
CAUTION
The CatEx sensor is intended for measurements of flammable gases and vapours
mixed with air (i.e. O
2
content ≈ 21 vol.%). Incorrect measured values may be displayed
in the case of oxygen deficient or oxygen enriched environments.
NOTICE
If the gas detector is used for offshore applications, a distance of 5 m to a compass
must be complied with.
The device can be operated normally. If the warning message does not go out
automatically during operation, the device must be maintained after the end of
use.
The device is not ready to measure and requires maintenance.
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