SAFETY INSTRUCTIONS
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3
H250 M10
www.krohne.com
06/2012 - 4001058901- MA H250/M10-Ex-II2G-AD R02 en
Safety instructions
1.1 General notes
These additional instructions apply to explosion-protected versions of variable area flowmeters
with electrical built-ins and the marking II 2 G. They complement the standard documentation
for the non-explosion protected versions.
The information given in these Instructions contains only the data relevant to Category 2
explosion protection. The technical details given in the standard documentation 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explosion protected versions apply unchanged unless excluded or superseded by these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.
The EC Type Test Certificate of the Physikalisch Technische Bundesanstalt (PTB)
forms the basis of the EC Declaration of Conformity:
The EC type test certificate may be downloaded from the manufacturer's website as needed.
1.3 Safety instructions
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
PTB 01 ATEX 1154
PTB 01 ATEX 1154
PTB 01 ATEX 1154
PTB 01 ATEX 1154
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_M10_II2G_R02_en_058901_PRT.book Page 3 Tuesday, June 26, 2012 7:20 AM