Dräger X-am 1100 Notice D'utilisation page 3

Operation
Switching on the device
•
Press and hold the [OK] key for approx. 3 seconds until
the countdown » 3 . 2 . 1 « shown in the display has
expired.
– All the display segments, including the visual, audible
and vibration alarms, are activated for a short time.
– The software version is displayed.
– The device performs a self-test.
– The remaining operating time (not in the case of Dräger
X-am 2000) is displayed, for example » d 730 «
(remaining operating time 730 days).
– All alarm setpoints A1 and A2 as well as TWA
1)
STEL for H S and CO are displayed in succession.
2
– During the running-in period of the sensors, the
respective display of the measured value flashes and
the special symbol » « (for warning) is displayed.
• Press the [OK] key to cancel the display of the activation
sequence.
Switching off the device
•
Press and hold the [OK] key and the [ + ] key
simultaneously 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
ATTENTION:
Check and, if necessary, adjust the calibration
before carrying out safety-relevant measurements.
A bump test must be performed according to the
national regulations.
•
Switch on the device, the current measured values are
shown in the display.
– Observe any warning » « or fault messages »
The instrument can still be used in a normal
manner. The icon shall disappear during the
work shift. If this is not the case, maintance is
required.
The instrument is not ready for use.
Maintanance is required.
• Check that the gas inlet opening on the device is not
covered.
ATTENTION:
The presence of catalyst poisons in the measured
gas (e.g. volatile silicone, sulphur, heavy metal com-
pounds or halogenated hydrocarbons) can damage
the CAT Ex sensor. If the CAT Ex sensor cannot be
calibrated to the target concentration anymore, the
sensor must be replaced.
The Cat Ex sensor may show incorrect results in an
oxygen-poor atmosphere.
Electrical operating safety (explosion protection) is
not guaranteed in an oxygen enriched atmosphere.
1)
and
During operation
– The measured values for every measured gas are
displayed during operation.
– If a measuring range is exceeded or a negative drift
occurs, the following displays are shown instead of the
measured value display:
» « (concentration too high) or »
(negative drift).
– In the event of an alarm, the corresponding displays, the
visual, audible and vibration alarms are activated – see
Chapter "Identifying Alarms".
Identifying Alarms
An alarm is displayed visually, audibly and through
vibration in a specific pattern.
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 disappears 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 a 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 = oxygen deficiency
2
A2 = oxygen excess
ATTENTION:
Leave the area immediately. You are in mortal
danger! A main alarm is self-latching and cannot be
acknowledged or cancelled.
After leaving the area, if the concentration is less than the
alarm setpoint A2.
•
Press the [OK] key, the alarm messages are switched off.
STEL / TWA exposure alarm
The alarm is indicated by an
intermittent alarm message:
«
Display » STEL « or » TWA « and
measured value alternating:
ATTENTION:
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 device. The values for the exposure
evaluation are deleted after the device is switched on
again.
Battery pre-alarm
The alarm is indicated by an
intermittent alarm message:
Flashing special symbol »
the right-hand side of the display:
Acknowledging a 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.
____________
1) Only when activated in the device configuration. Delivery status: not
activated.
« on
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