en
7. Option
Double Flash mode
It is possible to choose between DFM1, DFM2 and DFM3 (Double Flash Mode) via the external
DFM1
8. Maintenance, service, repairs
Observe the
Safety information
The device requires no special maintenance.
The housing is not intended to be opened or the seal replaced.
Only clean the polycarbonate housing with water and a hand-washing cleaner.
Do not use solvents for cleaning.
Qualified electricians can replace original spare parts or set a different operating mode.
Perform a routine test after replacement.
The test for vapor tightness in accordance with EN 60079-15, par. 23.2.3.2.1.2 is part of this test
(change of a negative pressure from 3 kPa to 2.7 kPa not faster than in 27 s).
Cable glands can be used as a test connection for the test. These must be closed with an ATEX plug
after the test.
Repairs must always be carried out at the manufacturer's premises.
Conversions, modifications, improper and impermissible use as well as failure to observe the notes in this op-
erating instructions shall void any warranty.
9. Decommissioning, dismantling and disposal
Observe the
Safety information
Only properly qualified personnel should dispose of old devices in accordance with applicable envi-
ronmental regulations.
Old devices are also professionally disposed of by Pfannenberg. Delivery to one of our manufacturing fa-
cilities shall be free of charge.
Pfannenberg GmbH
Werner-Witt-Straße 1
D- 21035 Hamburg
Tel.: +49/ (0)40/ 734 12-0
Fax: +49/ (0)40/ 734 12-101
service@pfannenberg.com
http://www.pfannenberg.com
03/2021
Quadro LED-RGB-3G/3D Operating Instructions
DFM2
during all work on the device.
during all work on the device.
Page 8 / 8
DFM3
control.
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