PR electronics 7501 Manuel De Produit page 58

LERBAKKEN 10, 8410 RØNDE DENMARK.
Explosion proof / Dust ignition proof installation
The enclosure must be installed such, that even in the event of rare incidents, ignition sources due to impact
and friction, sparks are excluded.
Unused cable entries must be sealed by approved sealing plugs.
Certified cable and cable glands shall be used that are suitable for the application and correctly installed or
the cables must be run in conduit.
For an ambient temperature exceeding 70 °C, heat resistant cables and cable glands suitable for at least
90°C shall be used.
For process temperatures above 85°C or below -20/-40°C installer must verify by measurements that the
service temperature of the 7501 module is held within this range taking worst conditions into account.
The display cover must be screwed all the way in and the safety catch must be fastened before operation.
Protection degree of IP 66 or TYPE4X is only achieved if certified cable glands or conduit entry devices are
used that are suitable for the application and correctly installed with sealing washers or Loctite sealant is
added to the threads of the sensor, blanking elements and cable glands.
The enclosure must be connected to the potential matching line.
Warning.
Do not open display cover unless area is known to be safe.
For installation in Canada the following must be taken into account:
All openings for conduit and sensor connection must be in NPT threads.
For Class I Group A installation, conduit seal is required within 18 inches of the enclosure.
For Class I Zone I installation, conduit seal is required within 18 inches of the enclosure.
Attention.
Ne pas ouvrir le couvercle de l'afficheur tant que la zone n'est pas réputée non explosible.
Pour une mise en œuvre au Canada, les préconisations ci-dessous doivent être observées :
Toutes les ouvertures d'entrée process et connexion de capteur doivent être munies de filetage
NPT.
Pour une mise en œuvre en Classe I, Groupe A, des joints d'étanchéité doivent être mises en
place à moins de 18 pouces du boîtier.
Pour une mise en œuvre en Classe I, Zone I, des joints d'étanchéité doivent être mises en place à
moins de 18 pouces du boîtier.
Revision date:
2016-08-03
58
Version Revision
V5R0
7501V108-FR
WWW.PRELECTRONICS.COM
7501QF01
Page:
5/5