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1
Safety-related information
Carefully read these instructions for use as well as those
for the associated products before using this device.
Only trained and competent personnel are permitted to
inspect, repair and service the device. Dräger recommend
a Dräger service contract for all maintenance activities and
that all repairs are carried out by Dräger.
Strictly follow the instructions for use. The user must fully
understand and strictly observe the instructions. Only use
this device for the purposes specified in the Intended use
section of this document.
Do not dispose of the instructions for use. Ensure that the
instructions for use are retained and appropriately used by
the user.
Only trained, expert personnel may use this device.
Comply with all local and national rules and regulations
associated with this device.
Use only genuine Dräger spare parts and accessories for
maintenance work. Otherwise, the functional integrity of
the device may be impaired.
Do not use a faulty or incomplete device. Do not modify the
device.
Notify Dräger in the event of any device or component fault
or failure.
2
Conventions in this document
2.1
Definitions of alert icons
The following alert icons are used in this document to indicate
and highlight areas of the associated text that require particular
attention by the user. A definition of the meaning of each icon
is as follows:
DANGER
Indicates an imminently hazardous situation. If not avoided, it
will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation. If not avoided, it
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation. If not avoided, it
could result in physical injury. It may also be used to alert
against unsafe practices.
NOTE
Indicates a potentially hazardous situation. If not avoided, it
could result in damage to the device or environment.
2.2
Product-related warnings
Manipulation of pressurised components
DANGER
Pressurised components such as the ends of pipes, may
become detached with force due to manipulation and the
resulting pressure surge may cause life-threatening injuries.
► All work on the device is only permitted to be carried out
when depressurised.
► With all described procedures, the valves should always be
opened and closed slowly. Never unfasten or tighten hose
lines and pipe screw connections under pressure.
CAUTION
The door of the Air Guard may only be opened when the
device is in a depressurised state.
► Otherwise, there could be a hazard from pressurised
components; for example, as a result of loosened hose
lines.
Other hazards
DANGER
Do not use this device in potentially explosive or flammable
atmospheres. The device is not approved for use in explosive
atmospheres. Under certain conditions, an explosion could be
the result.
CAUTION
Risk of injury and equipment damage.
All work on the Air Guard may only be performed when the
device is voltage-free.
► Disconnect Air Guard from the power supply and secure it
against unintentional activation. Only begin work in
Air Guard after this has been done.
CAUTION
Risk of injury when using the device with contaminated
breathing air
► The quality of the air supply must meet the requirements for
breathing air in accordance with DIN EN 12021, and only
oil-free and grease-free tools may be used for all work.
CAUTION
Risk of equipment damage due to non-permissible pressure
range of the breathing air supply
If the breathing air supply provided by the operator side is
under a too high pressure or opened too quickly, the device
could be damaged.
► Observe the permissible pressure range of max. 10 bar
(LP) and max. 330 bar (HP) for the external breathing air
supply and always open all valves on the breathing air
supply slowly.
NOTE
The measured values for the absolute moisture of the
breathing air supply are displayed for a gas temperature of
20 °C regardless of the current temperature of the gas.
Safety-related information
en
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