KROHNE BM 70 M - Manual (Page 89)

BM 70M-EEx/ BM 70Mi-EEx 3
1 General safety information
These additional “Ex“ Instructions apply to the hazardous-duty versions of BM 70 M-EEx level
gauges. They are supplementary to the Installation and Operating Instructions issued for the non-
hazardous-duty versions.
The directions given in these Instructions contain only the data relevant to explosion protection.
The technical details given in the Installation and Operating Instructions for the non-hazardous-
duty versions apply unchanged unless excluded or superseded by these present Instructions.
In compliance with European Directive 94/9/EC (ATEX 100a), level gauges of the BM 70 M-EEx
series are certified in conformity with European Standards EN 50xxx for use in hazardous areas
under
PTB 02 ATEX 1078
by the Physikalisch-Technische Bundesanstalt (PTB).
It is absolutely necessary that the details contained in that approval certificate together with its
boundary conditions be observed.
Note:
Assembly, installation, start-up and maintenance work may only be carried out
by personnel who have been specially “trained in explosion protection”.
2 Safety relevant Type Code
The safety-relevant type code is made up of the following elements: (1)
BM 70M . / . / . – E Ex ... . ........ - ..
1 2 3 4 5 6 7 8 9 10 11
_______________________________ ____________________
SIGNAL CONVERTER FLANGE SYSTEM
1 Tank level measuring device
2 Signal converter series 70M Marine
i intrinsically safe I/O function 3 Type of protection symbol for
signal outputs
unassigned non-intrinsically safe I/O function
E compartment in Increased Safety "e"
(standard) 4 Type of protection symbol for the
terminal compartment
D compartment as Flameproof
Enclosure "d" (option)
S extended temperature range from
-40°C to +60°C 5 Ambient temperature range
unassigned standard temperature range from
-20°C to +60°C
6 Territorial application for
explosion protection certification E Europe (EC, CENELEC)
7 Safety function Ex explosion-protected electrical
equipment
V96 flange system V96 8 Flange system series
SA flange system SA