Battery Pre-Alarm; Info Mode - Dräger MQG 0011 Gebrauchsanweisung

Operation
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.
4.6.3 STEL / TWA exposure alarm
CAUTION
!
Leave the area immediately. After this alarm, the deployment
of personnel is subject to the relevant national regulations.
Intermittent alarm:
Display A2 and (STEL) or respectively

value alternating:
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.
4.6.4

Battery pre-alarm

Intermittent alarm:
Flashing special symbol

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.
24
(TWA) and measured
on the right side of the display:
4.6.5 Battery main alarm
Intermittent alarm:
Flashing special symbol

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.
4.6.6 Instrument alarm
Intermittent alarm:
Special symbol displayed on the right side of the display:

The instrument is not ready for operation.

Contact maintenance or DrägerService to rectify the problem.

4.7

Info Mode

4.7.1 Activating the Info mode
In measuring mode, press the OK key for approx. 3 seconds.

If any warning or fault messages are pending, the corresponding

note or error codes are displayed (see Technical Handbook).
Then press the OK key for the next display. The peak values and
the exposure values TWA and STEV will be displayed.
If no key is pressed for 10 seconds, the instrument returns

automatically to measuring mode.
4.7.2 Info Off mode
Press the [+] key when the instrument is turned off.

The name of the gas, measuring unit, and measuring range limit
value are displayed for all channels.
Press the [+] key again to exit the Info Off Mode (or via timeout).

on the right side of the display:
Dräger X-am 2500