Conventions In This Document; Meaning Of The Warning Notes; Typographical Conventions - Dräger X-am 3500 Notice D'utilisation

CatEx sensor in oxygen deficient environment
Incorrect measured values may be displayed in an oxygen
deficient environment.
► The CatEx sensor is intended to measure flammable
gasses and vapours mixed with air (i.e. O
21 vol. %). If the O content falls below 12 vol. % and am
2
operational O sensor is available, a channel error is
2
triggered on the CatEx channel due to oxygen deficiency.
Incorrect calibration
CAUTION: An incorrect calibration leads to incorrect
measured values.
► CSA requirement (Canadian Standard Association): 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 be 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.
DrägerSensor CatEx 125 PR (6812950) and CatEx 125 PR
Gas (6813080)
► For this gas detector, only use sensors with serial
numbers > ARLB XXXX (starting with date of manufacture
in February 2018). These sensors are certified for use in
zone 0, T4.
2

Conventions in this document

2.1

Meaning of the warning notes

The following warning notes are used in this document to
notify users of possible dangers. The meanings of the warning
notes are defined as follows:
Alert icon Signal word
WARNING
CAUTION
NOTICE
Instructions for use |
X-am
content ≈
2
Consequences in case of
nonobservance
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in death or serious
injury.
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in physical injury. It
may also be used to alert
against unsafe practices.
Indicates a potentially hazard-
ous situation. If not avoided, it
could result in damage to the
product or environment.
®
3500
2.2 Trade marks
Brand Brand owner
Dräger
®
X-am
Bluetooth SIG, Inc.
®
Bluetooth
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 navigation
path in a menu.
This symbol indicates information that may make
the use of this product easier.
2.4 Glossary
Term Description
Operation signal A periodic optical (green LED) and/or
acoustic signal.
Monitoring Monitoring without pump (diffusion)
Monitoring with pump (with pump
adapter)
Capture range The capture range refers to a measured
value range within which minor variations
in measured values (such as signal
noise, variations in concentration) do not
cause variations in the display. Measured
values outside the capture range will be
displayed with the actual measured
value.
Peak Peak value
Quick bump test Test for alarm triggering.
Extended bump Test for accuracy and alarm triggering.
test
Special state If a special state is signalled, the user is
not warned of gas concentrations which
may be dangerous.
The following device features are special
states:
First set-up/configuration with the PC,
switch-on sequence, menu, preparation
phase of the wizards, maintenance wiz-
ard bump test and calibration, warm-up 1
of the sensors, device error, measuring
channel error.
D-Light The D-Light feature allows the user to
check and indicate compliance with cer-
tain settings.
Conventions in this document
| en
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