Wesemann DB-DG03, User Manual, Page: 43 / 92

43 User Manual | Laboratory Fume Cupboard | Commissioning of laboratory fume cupboard
4.3 Commissioning of fume cupboard
4.3.1 Check before commissioning
The fume cupboard must be so placed that it can be safely operated with the nominal air volume. Alternatively,
a minimum infl ow of 0.25m/s is to be guaranteed.
4.3.2 Emergency OFF and operating the electrical components
EMERGENCY OFF BUTTON
The EMERGENCY OFF button can come in a variety of different designs in laboratory fume cupboards.
Actuating the Emergency OFF button is identical in all variants by pressing the Emergency OFF button.
EMERGENCY OFF PULL-RELEASE
The emergency OFF button is to be pressed in the case of an emergency or to avert a danger. By pressing
the button, all experimental sockets are disconnected from the power supply. Before reactivating, it must be
ensured that no further danger exists. Reactivation is effected by pulling > pull-release.
Danger of hazardous substances outbreak by improper use of the fume cupboard.
Severe poisoning may result.
•
The green LED (volume fl ow okay) must be glowing, in order that the fume cupboard
can be operated.
WARNING
Before commissioning of the fume cupboard, fi nd out about the Emergency
OFF button
• which circuits and apparatus are affected by actuating the button.
• what should be done after actuating the Emergency OFF button.
• when may the Emergency OFF button be reactivated?
NOTE