Hach-Lange SI792(x) E HACH GLI 3700 series SI792(x) T 7MA2200 and 8398 series User Manual - Manual (Page 111)

ATEX safety instructions
109
plumbing standard) (refer to Figure 19 ). Mounting in the boundary
wall between zone 0 and the less endangered area is to undertaken
properly such that an adequately sealed gap (IP 67) is obtained.
8. The model 3700E sensors have been developed and manufactured
in compliance with the applicable European directives and
standards.
9. Compliance with the European directives and standards is
confirmed by the CE declaration of conformity. Compliance with the
harmonized European standards for usage in areas endangered by
explosive atmospheres is confirmed by the EC type-examination
certificate. The CE declaration of conformity and the EC type-
examination certificate are part of the operating manuals.
10. On the usage of the types 3708E2T, 3727E2T and 3728E2T
sensors, the stipulations for electrical apparatus for explosive gas
atmospheres, IEC 60079-14 and EN 1127-1 must be met. In the
event of installation outside the scope of directive 94/9/EC, the
locally applicable stipulations are to be taken into account.
11. A specific, direct hazard is not caused by the use of the equipment
on usage in the stipulated environmental conditions.
Figure 19 Convertible-style sensor