Operating Manual
© Dürr Systems AG
EcoBell2 SL EC - Rotating Atomizer with External Charging
Operating principle
Document No.: MRA00001EN
Version:: 07
•
As of:: 01/2020
51 / 156
Assembly tool
W02020164
Assembly tool for
assembly of the
electrode ring at
the connection
flange
4.7.2
Functionality of tools
Compliance with the tightening torques is important in order to
guarantee the safety of the assembly and to prevent damage to the
components. For this reason, the torque wrenches used must be
periodically checked and calibrated by the operator.
4.7.3
Use of tools in Ex zones
The painting booth is separated into EX zones according to EN
16985. The Ex zone is defined only once and applies independently of
the operating state of the installation. Even a painting booth in which
no flammable medium is entered and which has been sufficiently
ventilated is still classified as an Ex zone. Example: Maintenance and
cleaning after sufficient ventilation duration without entering flammable
materials.
As specified in EN 50176 only accessories complying with EN 60079-
0 and/or EN ISO 80079-36 may be use in Ex zones.
EN 16985 requires sufficient ventilation of the spray booth prior to any
repair, maintenance or configuration work.
In painting booths with fresh air operation sufficient ventilation is
ensured after 3-10 air replacements. The painting booth is generally
sufficiently ventilated after 5 minutes*. In recirculation systems,
depending on the mixing ratio of circulating air and fresh air, a
ventilation time of 30 minutes* is necessary in order to reach sufficient
ventilation. The ventilation duration is subject to type and settings and
must always be determined by the system-specific parameters.
