User Level; Display In Gas Channel; Signalling Concept; Acoustic Operation Signal - Dräger X-am 3500 Manual Del Usuario

en Operation

4.2.6 User level

Symbol Explanation
User level 1
User level 2
User level 3

4.2.7 Display in gas channel

Symbol Explanation
Bump test or calibration successful
Bump test or calibration failed
Measurement range exceeded
Readings below the measurement
range
Channel error
Blocking alarm
##### Value too high to be displayed

4.3 Signalling concept

4.3.1 Acoustic operation signal

A periodic acoustic signal indicates that the device is
functional. The acoustic operation signal can be
deactivated. For further information, see the following
chapter: "Activating silent mode", page 41

4.3.2 Visual operation signal

A periodic pulse (increasing and decreasing intensity)
of the green LED indicates:
– Monitoring, confined space entry, leak search or
benzene/pre-tube measurement application active
– There is no device or channel error, no gas alarm
and no special state
4.3.3 Visual operation signal with activated
D-Light
An activated D-Light feature allows the user to also
check and indicate compliance with certain settings:
– Evaluation of bump test intervals activated and
complied with (factory setting) or evaluation of the
calibration intervals active and complied with
– Usage interval complied with
The D-Light feature can be activated using the Dräger
CC-Vision PC software.
Signalling visually corresponds to the operating signal.
If one of the conditions listed is not fulfilled and the D-
Light is activated, the greed LED will switch on briefly at
regular intervals (short flash approx. every 60 s) instead
of pulsing periodically.
4.4 Switch the gas detector on or
off

4.4.1 Initial start-up

When the gas detector is switched on for the first time,
a wizard starts. The wizard guides the user through the
set-up of the gas detector:
– Language selection, if applicable
– Data format and date
– Time
Then carry out an initial calibration. For further
information see: "Calibrate the gas detector", page 43.

4.4.2 Switching on the gas detector

1. Hold down the OK button for approx. 3 s.
 The display shows a countdown.
 The switch-on sequence and the warm-up phase
of the sensors start.
The following display appear one after the other:
– Start screen
– Firmware version
– Display test (the display alternates between black
and white)
– Alarm element test (LEDs, alarm signal and
vibration alarm)
– Customer-specific information screen (optional and
configurable with the Dräger CC-Vision PC
software)
– Alarm thresholds, STEL, TWA (if configured) and
LEL factor (if available)
– Any expired bump test or calibration interval as well
as early warnings (if configured)
– Measured value display
The remaining sensor warm-up time is displayed in the
upper, left-hand corner in a yellow box.
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X-am 3500