KROHNE H250 M9S ATEX II3D Ex t-II3G Ex nA EN - Manual (Page 3)

SAFETY INSTRUCTIONS
1
3
H250 M9
www.krohne.com 10/2012 - 4000646002 MA H250/M9-Ex-II3GD-AD-R06-en
Safety instructions
1.1 General notes
These additional Instructions apply to the explosion-protected versions of the variable-area
flowmeters with electrical components and the marking II 3 G and II 3 D. They are
supplementary to the Installation and Operation Instructions for the non-hazardous-duty
versions.
The information given in these Instructions contains only the data relevant to Category 3
explosion protection. The technical details given in the Installation and Operation Instructions for
the non-explosion protected versions apply unchanged unless excluded or superseded by these
Instructions.
1.2 EC conformity
The manufacturer declares with the EC Declaration of Conformity on his own responsibility
conformity with the protection goals of Directive 94/9/EC for use in hazardous areas with gas and
dust.
The assessment was made according to Directive 94/9/EC, Annex VIII (module "Internal control
of production"), and is registered company-internal under KMT-TDZ-A041X. This registration
number is also provided on the nameplate.
1.3 Security information
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
CAUTION!
The operator respectively his agent is responsible to follow further standards, directives or laws
if required due to operating conditions or place of installation. This applies particularly for the
use of easy detachable process connections such as SMS or Clamp when measuring flammable
mediums.
AD_H250_M9_II3GD_R06_en_646002_PRT.book Page 3 Wednesday, October 17, 2012 8:03 AM