Once the fresh air adjustment has been successfully completed:
Alarm LED is illuminated red.
The acoustic signal sounds once followed by three short tones and the gas
detector switches off.
If a fault has occurred during the fresh air adjustment:
The fault message
sensor instead of the measured value.
In this case, repeat the fresh air adjustment. If necessary, have the sensor
replaced by qualified personnel.
7
Cleaning
The instrument does not need any special care.
Dirt and deposits can be removed from the instrument by washing it with
cold water. A sponge can be used for wiping if necessary.
!
CAUTION
Abrasive cleaning tools (brushes etc.), cleaning agents and cleaning solvents
can destroy the dust and water filters.
For information on suitable cleaning and disinfecting agents and their
specification, see document 9100081 at
www.draeger.com/IFU.
Carefully dry the instrument with a cloth.
8
Maintenance
The instrument should be inspected and serviced once a year by suitably
qualified persons. Comparisons:
EN 60079-29-2 – Gas detectors – Selection, installation, use and
maintenance of detectors for flammable gases and oxygen
EN 45544-4 – Electrical apparatus used for the direct detection and direct
concentration measurement of toxic gases and vapours – Part 4: Guide for
selection, installation, use and maintenance
National regulations
appears and
is displayed for the respective
Cleaning
en
47