KROHNE M10 Converter H250-H 54 Ex II2G EN - Manual (Page 3)

11/2002
Signal converter M10-EEx d – Supplementary instructions 3
1 General safety information
These additional “Ex“ Instructions apply to the hazardous-duty versions of H..../..../M10-EEx
variable-area flowmeters. They are supplementary to the Installation and Operating Instructions for
the non-hazardous-duty versions.
The information given in these Instructions contains only the data relevant to explosion protection.
The technical details given in the Installation and Operating Instructions for the non-hazardous-
duty version apply unchanged unless excluded or superseded by these Instructions.
In compliance with European Directive 94/9 EG (ATEX 100a), variable-area flowmeters of the
H..../..../M10-EEx series are certified in conformity with European Standards EN 50xxx for use in
hazardous areas under
PTB 01 ATEX 1154
by the Physikalisch-Technische Bundesanstalt (PTB).
This certification together with its boundary conditions is required to be observed without fail (see
Attachment A.1 ”EC type test certificate“).
IMPORTANT!
Mounting, installation, (initial) startup and maintenance work may only be carried out
by personnel who have received "training in explosion protection"!
Maintenance work of a safety-relevant nature within the meaning of explosion protection
may only be carried out by the manufacturer, his authorized representative or under the
supervision of authorized inspectors.
Note!
For processes involving combustible and highly flammable products, easily removable
threaded connections to DIN 11851; SMS; TriClamp (e.g. DIN 32676; ISO 2852 Clamp);
are not allowed.