During Operation; Concentration Pre-Alarm A1; Concentration Main Alarm A2 - Dräger X-am 5600 Notice D'utilisation

Before entering the workplace
Check and, if necessary, adjust the calibration before carrying out safety-
relevant measurements.
A bump test must be performed according to the national regulations.
Faulty calibration can lead to incorrect measurement results and, therefore,
also cause severe health risks.
Switch on the instrument. The current measured values are shown in the
display.
Observe any warning » « or fault messages »
The instrument can be operated normally. If the warning message does
not disappear automatically during operation, the instrument must be
serviced after the end of use.
The instrument is not ready to measure and requires maintenance.
Check that the gas inlet opening on the instrument is not covered and/or
dirty.

During operation

– During operation, the measured values for every measured gas are
displayed.
– If a measuring range is exceeded or a negative drift occurs, the following
displays are shown instead of the measured value display:
» «
(Too high concentration) or
» « (Too high concentration for Ex channel) or
» «
(Negative drift).
– If the concentrations of combustible materials are too high, this may be the
result of a lack of O .
2
– In the event of an alarm, the corresponding displays, including the visual,
audible and vibration alarms, are activated. See section "Identifying
alarms".
– After the measuring range of the EC measuring channels has been
exceeded temporarily (up to one hour), checking the measuring channels is
not necessary.
Identifying alarms
An alarm is displayed visually, audibly and through vibration in a specific pattern.
WARNING
«.

Concentration pre-alarm A1

The alarm is indicated by an intermittent alarm
message:
Display » A1 « and measured value alternating:
not for O !
2
The pre-alarm A1 is not self-latching and stops when the concentration has
dropped below the alarm setpoint A1.
In the case of A1 a single tone is audible and the alarm LED flashes.
In the case of A2, a double tone is audible and the alarm LED flashes twice.
Acknowledging the pre-alarm:
Press the [ OK ] key, only the audible alarm and the vibration alarm are
switched off.

Concentration main alarm A2

The alarm is indicated by an intermittent alarm
message:
Display » A2 « and measured value alternating:
for O : A1 = lack of oxygen
2
A2 = excess oxygen
Danger to life! Leave the area immediately.
A main alarm is self-latching and cannot be acknowledged or cancelled.
After leaving the area, if the concentration is less than the alarm threshold A2:
Press the [ OK ] key, the alarm messages are switched off.
WARNING
15