KROHNE BM 26 A EN - Manual (Page 6)

6 Installation and Operating Instructions BM 26 A
Special certificates (Optional: supplied on customer demand only)
• Test certificate to EN 10204: pressure test, dye penetration test, radiographic test, leak-tightness
test, ultrasonic test, helium leak test, surface cleanness and material
Standards / Approvals
In compliance with European Directive 94/9/EC (ATEX 100a), the bypass level
indicators described in these instructions conform to European Standards
EN50014, EN 50020, EN50018, EN13463-1 and EN 50284 and are certified for
use in hazardous locations by the INERIS certification agency under INERIS
02ATEX0088X when equipped with the appropriate options.
WARNING
The details given in this approval certificate together with its boundary conditions
must be observed.
This instrument also conforms to the European Union Pressure Equipment Directive 97/23/EC.
Ex Safety Instructions
ATEX-certified BM 26 A level indicators can be used in explosive atmospheres of all flammable
substances in Gas Group IIC (with the exception of cases given in these instructions) and
applications requiring Category 1 / 2 G and 1 G equipment. The instrument must be installed and
used by suitably qualified personnel.
Ex Equipment Category Definitions
Category 1 / 2 G – instruments
(for applications where the Exd-rated explosion-proof box is used)
The signal converter for current output and limit switch options are located in hazardous areas
requiring instruments qualified as being category 2. The process connection and tank wall form an
interface between zones for category 1 and 2 equipment. The indicator measuring elements (float
and measuring tube) are qualified as being category 1. The G rating means that the instrument is
qualified for gas environments.
Category 1 G - instruments
The signal converter for current output, limit switch options and measuring components are located
in hazardous areas requiring instruments qualified as being category 1.