Identifying Alarms - Dräger X-am 5000 Notice D'utilisation

Identifying alarms

An alarm is displayed visually, audibly and through vibration in a specific pattern.
At low temperatures the legibility of the display can be improved by switching
on the backlight.
Concentration pre-alarm A1
Intermittent alarm:
Alternating display of » A1 « and measured value.
Not for O !
2
The pre-alarm A1 is not latching and stops when the concentration has
dropped below the alarm threshold A1.
In case of A1, a single tone is audible and the alarm LED flashes.
In case of A2, a double tone is audible and the alarm LED flashes twice.
Acknowledge pre-alarm:
 Press the [OK] key, only the audible alarm and the vibration alarm are
switched off.
Concentration main alarm A2
Intermittent alarm:
Alternating display of » A2 « and measured value.
For O : A1 = lack of oxygen
2
A2 = excess oxygen
Leave the area immediately. Danger to life! A main alarm is self-retaining and
cannot be acknowledged or cancelled.
After leaving the area, when the concentration has dropped below the alarm
threshold:
 Press the [OK] key; the alarm messages are switched off.
If the measuring range is exceeded significantly at the CatEx channel (very high
concentration of flammable materials), a blocking alarm is triggered. This CatEx
blocking alarm can be manually acknowledged by switching the instrument off
and on in fresh air.
In configuration setting CH with measuring range 100 vol.-%, no blocking alarm
4
is triggered as the heat conductance measuring principle is used for this purpose.
22
NOTICE
WARNING
The measuring range 0 to 100 vol. % CH
explosive mixtures in the measuring range of 0 to 100 %LEL.
STEL / TWA exposure alarm
Intermittent alarm:
Display » A2 « and » « (STEL) or »
alternately:
Health hazard! Leave the area immediately. After this alarm, the deployment
of personnel is subject to the relevant national regulations.
– The STEL and TWA alarm cannot be acknowledged or cancelled.
 Switch off the instrument. The values for the exposure evaluation are deleted
after the instrument is switched on again.
The STEL alarm can be triggered with a maximum delay of one minute.
Battery pre-alarm
Intermittent alarm:
Flashing special symbol » « on the right side of
the display.
Acknowledge pre-alarm:
 Press the [OK] key, only the audible alarm and the vibration alarm are
switched off.
– The battery still lasts approx. 20 minutes after the first battery pre-alarm.
Battery main alarm
Intermittent alarm:
Flashing special symbol » « on the right side of
the display.
The battery main alarm cannot be acknowledged or cancelled:
– The instrument is automatically switched off again after 10 seconds.
– Before the instrument is switched off, the visual, audible and vibration alarms
are activated for a short time.
WARNING
is not suitable for monitoring
4
« (TWA) and measured value
CAUTION
NOTICE