Glossary - Dräger X-am 3500 Notice D'utilisation

Oxygen deficient atmospheres
Measurements in oxygen deficient atmospheres (<12
vol. % O ) may return incorrect displays on the CatEx
2
sensor. In this case the CatEx sensor cannot provide a
reliable measurement.
► Remove the device from the area.
The CatEx sensor in oxygen deficient or oxygen
enriched environments
Incorrect measured values may be displayed in an
oxygen deficient or oxygen enriched environment.
► The CatEx sensor is intended to measure flammable
gasses and vapours mixed with air (i.e. O
21 vol. %). If the O
2
and am operational O
channel error is triggered on the CatEx channel due
to oxygen deficiency.
Incorrect calibration
CAUTION: An incorrect calibration leads to incorrect
measured values.
► CSA requirement: The sensitivity must be checked
daily before first using the device, with a known
concentration of the gas to be measured that
corresponds to 25 to 50 % of the final concentration.
The accuracy must amount to 0 to +20 % of the
actual value. The accuracy can be corrected by
calibration.
NOTICE
Damage to the CatEx sensor!
Fractions of catalytic poisons in the measuring gas (e.g.
volatile silicon, sulphur, heavy metal compounds or
halogenated hydrocarbon) can damage the Cat Ex
sensor.
► If the CatEx sensor can no longer be calibrated to
the target concentration, replace the sensor.
2 Conventions in this
document
2.1 Meaning of the warning notes
The following alert icons are used in this document to
provide and highlight areas of the associated text that
require a greater awareness by the user. A definition of
the meaning of each icon is as follows:
Instructions for use | X-am® 3500
content ≈
2
content falls below 12 vol. %
sensor is available, a
2
Alert Signal word Consequences in case of
icon
WARNING
CAUTION
NOTICE
2.2 Trade marks
Brand Brand owner
Dräger
®
X-am
The brands listed are only registered in certain
countries and not necessarily in the country in which
this material is sold.
2.3 Typographical conventions
Text Text in bold identifies labels on the device
and text on the display.
► This triangle in warnings identifies the options
available for avoiding the hazard.
> The greater-than symbol identifies a naviga-
tion path in a menu.
This symbol indicates information that may
make the use of this product easier.

2.4 Glossary

Term Description
Operation sig- A periodic optical (green LED) and/or
nal acoustic signal.
Monitoring Monitoring without pump (diffusion)
Monitoring with pump (with pump
adapter)
Conventions in this document
nonobservance
Indicates a potentially haz-
ardous situation which, if not
avoided, may result in death
or serious injury.
Indicates a potentially haz-
ardous situation which, if not
avoided, may result in injury.
It may also be used to alert
against unsafe practices.
Indicates a potentially haz-
ardous situation which, if not
avoided, could result in
damage to the product or
environment.
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en
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