8
Installation and Maintenance Instructions
Model E1 Intercom Station
Certifications
Models:
E1-SM, E1-GM1, E1-GM2, E1-GM3, E1-HND, E1-JS
Certificate nos.: ATEX Cert No.: Demko 13 ATEX 1213079X
IECEx Cert No.: IECEx UL 13.0028X
ATEX coding:
II 2 G
Protection:
Ex d ib IIB T4 Gb (‒40 °C ≤ Ta ≤ +65 °C)
Ex d [ib] IIB T4 Gb (for Model E1-JS)
Standards:
EN 60079-0: 2009, EN 60079-1: 2007,
EN 60079-11:2011
IEC 60079-0: 5
th
Ed., IEC 60079-1: 6
th
Ed.,
IEC 60079-11: 6
th
Ed.
I.S. ratings
Um = 250 V (Additionally, for Model E1-JS, refer to
control drawing 850000218A.)
Special Conditions for Safe Use
• All cable entry devices and blanking elements shall be certified
in type of explosion protection flameproof enclosure “d”
suitable for the conditions of use and correctly installed.
• This device uses 3/4-inch NPT cable entries
• Unused apertures shall be closed with suitable blanking
elements.
• For ambient temperatures below -10
°
C and above +60
°
C, use
field wiring suitable for both minimum and maximum ambient
temperature.
• All conduit runs must have a properly certified sealing fitting
connected within 2 inches (51 mm) of the enclosure.
•
Warning:
Do not open when an explosive atmosphere may be
present.
•
Warning:
Do not open when energized.
• The flamepath joint differs from Table 2 of EN 60079-1. The
enclosure has a joint width of 37 mm, maximum allowable gap
of 0.038 mm. The distance “I” of 22.6 mm is measured from
the edge of the O-ring groove to the cover bolt per Figures 3
and 5 of EN 60079-1.
