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GENERAL SAFETY INFORMATION
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MS15 - MS40 SERIES
www.krohne.com
06/2020 - 4007717401 - AD ATEX MS15-MS40 R01 en
1.1 Scope of the document
These instructions are applicable only to the explosion-protection version of the MS15 series and
MS40 series bistable limit switches. For all other data, use the Quick Start and Handbook. If you
do not have these documents, please contact the nearest sales office or download them from the
manufacturer's website.
1.2 Device description
The limit switch uses a bistable reed switch to detect the level of the liquid. It is attached
adjacent to the measuring chamber of the BM26A series bypass level indicator. The measuring
chamber is certified for use in hazardous areas under KIWA 17ATEX0043 X or KIWA
17ATEX0044 X.
This equipment is approved for use in potentially explosive atmospheres when equipped with the
appropriate options.
1.3 Standards and approvals
You can download the certificate from our website.
INFORMATION!
The information in these supplementary instructions only contains the data applicable to
explosion protection. The technical data for the non-Ex version in the Handbook shall be valid in
its current version, provided that it is not rendered invalid or replaced by these supplementary
instructions.
WARNING!
Installation, commissioning and maintenance may only be carried out by "Personnel trained in
explosion protection".
DANGER!
In compliance with European Directives 2014/34/EU (ATEX 114), the ATEX versions of the limit
switch described in these Supplementary Instructions conform to European Standards
EN IEC 60079-0:2018, EN 60079-1:2014 and EN 60079-11:2012 . The Ex ia and Ex db versions are
certified for use in hazardous areas by KIWA ExVision B.V. under KIWA 20ATEX0015 X.
WARNING!
Carefully read the ATEX approval certificate. Obey the boundary conditions.
