Switching Off The Instrument - Dräger X-am 2500 Notice D'utilisation

Operation
4.2 Switching on the instrument
1. Hold down the [OK] key for approx. 3 seconds until the
countdown » 3 . 2 . 1 « shown on the display has elapsed.
All the display segments, including the visual, audible and

vibration alarms, are activated for a short time.
The software version is displayed.

The instrument performs a self-test.

The sensor that is up next for adjustment is displayed with

the remaining days
ch4 %LEL CAL 20.
The time until the bump test interval elapses is displayed in

days, e.g. bt 123.
All alarm thresholds A1 and A2 as well as

1
(STEL) for all toxic gases (e.g. H
consecutively.
During the sensor warm-up phase:
The display for the measured value flashes

The special symbol » « is displayed.

No alarms are issued during the warm-up phase.

The red LEDs flash.

The gas detector is ready to measure when the measured

values no longer flash and the red LEDs are no longer
illuminated. The special symbol » « may continue to be
displayed if corresponding warnings (e.g. not yet ready for
calibration) are active (to view the warnings, see the technical
manual).
2. Press the OK key to cancel the display of the activation sequence.
1) Only when activated in the instrument configuration. Delivery condition: not activated.
24
until the next adjustment,
1
(TWA)
S or CO) are displayed
2
4.3

Switching off the instrument

Press and hold the OK key and [+] key at the same time until the

countdown 3 . 2 . 1 shown in the display has elapsed.
Before the instrument is switched off, the visual, audible and
vibration alarms are activated for a short time.
4.4 Before entering the workplace
e.g.
Switch on the instrument. The current measured values are shown in the display.
WARNING
!
Before any measurements relevant to safety are made, check
the adjustment with a bump test, adjust if necessary and
and
check all alarm elements. If national regulations apply, a bump
test must be performed according to the national regulations.
Faulty adjustment may result in incorrect measuring results,
with possible serious consequences.
CAUTION
!
The CatEx sensor is intended for measurements of flammable
gases and vapours mixed with air (i.e. O
Incorrect measured values may be displayed in the case of
oxygen deficient or oxygen enriched environments.
NOTICE
i
i
If the gas detector is used for offshore applications, a distance
of 5 m to a compass must be complied with.
1. Switch on the instrument. The current measured values are shown
in the display.
content ≈ 21 vol.%).
2
Dräger X-am 2500