KROHNE H250 M9 NEPSI Ex nA - Manual (Page 3)

SAFETY INSTRUCTIONS
1
3
H250 M9
www.krohne.com 03/2013 - 4002616501 AD H250 M9 NEPSI Ex nA R01 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 Ex nA. They complete the installation
and operation instructions for the non-explosion protected 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the non-explosion protected versions apply unchanged unless excluded or superseded by these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 NEPSI conformity
The H250/../M9S... variable-area flowmeters series has been approved by NEPSI (National
Supervision and Inspection Center for Explosion Protection and Safety of Intrumentation in
China) under Certification No.
This certification together with its boundary conditions is required to be observed without fail.
The Ex marking is NOT acc. to the ATEX directive 94/9/EC (see also Attachment "Certificate").
Placing the product on the market of the EU for purpose of distribution and/or use in the EU is
NOT permitted.
1.3 Security information
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
GYJ12.1526X GYJ12.1526X GYJ12.1526X GYJ12.1526X
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.
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