6. Operating the system
Increased risk of explosion when filter unit switched off.
If the filter unit is left switched off while work is performed at the extraction points then dust
may collect at the extraction points. If the dusts in question are potentially explosive then this
increases the risk of explosion. In its risk assessment for the overall system, the Operator
must therefore ensure that
1) the filter unit is switched ON before any dust/fume-generating work is performed,
2) dust/fume-generating work is ceased promptly when the filter unit is switched OFF
either voluntarily or due to a fault message.
The Operator must also note whether shut-off valves are present between the extraction
point and the filter unit. These must be open while the work is being performed.
6.1. Explanation of the operating elements
Control functions, setting options for programs, menu navigation, error messages, etc. are
described in the enclosed operating manual of the unit control. There is also an explanation of the
elements of the control panel.
By means of this switch, the device is switched on and off.
When the device is switched off, it is not disconnected from
the power supply.
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