RMG USM GT400 Operating Manual page 106

8 Installation
For ATEX / IECEx
98
3 Unscrew connection (2) with a suitable wrench (1).
4 Pull the blind plugs (3) out of the connection.
5 Screw glandes not required must be replaced by explosionproof screw
connections.
Recommendation: store the blind plugs for the future or for returning to RMG
for service work.
For NEC 500
In countries where CSA guidelines apply, the connections not required must be
provided with gasket screws ex-factory. Please leave these in the screw connec-
tion and only connect the cable that leaves the conduit seal. When joining the con-
duits to the flame block, ensure for a slight gradient away from the flame block in
order to avoid the accumulation of water on the conduit seal. Moreover, also en-
sure that you do not twist the conduit seal when securing the conduit as the cable
in the electrics housing may tear-off as a result. If necessary, use a respective
bolted connection (union).
Manual USM GT400 · EN10 · May 2021
1 Wrench
2 Screwed cable gland
3 Blind plug
Fig. 8.1: Remove the blind plugs