Safety instructions – KROHNE H250 M40 NEPSI Ex ia User Manual

Page 3

SAFETY INSTRUCTIONS

H250 M40

www.krohne.com

03/2013 - 4002616701 AD H250 M40 NEPSI Ex ia R01 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 Ex i. They complement the Installation and Operation
Instructions 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 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the non-explosion protected versions apply unchanged unless excluded or superseded by these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/M40 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!

GYJ12.1041X

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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