Operating Instructions MBA888
Operating Instructions MBA888
11/2017/Item No. 8001705
Page 2/6
MBA Instruments GmbH
1.
Safety information – for use in explosion-hazardous areas (areas with potentially explosive atmosphere)
A level indicator of type MBA888 may be used in an explosion-hazardous area only if permitted by the
individual device specification.
•
Check the device's rating plate in order to establish whether the approval (ATEX) applies.
An approved device will have the following marking:
II 1/2 D Ex ta/tb IIIC T100°C Da/Db
•
Follow the regulations specified in the approval.
•
Fit an equipotential-bonding lead.
•
Prevent sparking as the result of metal parts striking each other.
•
Wiring must be performed in accordance with Standard EN 60079-14.
•
Follow the regulations of the EC Type-Examination Certificate.
•
Comply with zone separation (see below).
•
Connect electrical wiring only in a suitable terminal box.
2.
User's responsibility
•
Use the device only as described in these Operating Instructions. The manufacturer is unable to
assume any liability or warranty for other uses.
•
Follow all local legislation, technical regulations and in-company directives applicable to the device's
place of use, in addition to these Operating Instructions.
•
The housing cannot be opened.
•
Comply with the voltage and temperature specifications on the rating plate.
3.
Use
The MBA888 is used as a level switch for all types of bulk goods. The device may be used only for fixed
installation in industrial plant (large machine tools).
4.
Conformity:
Explosion Protection, General Requirements ................. IEC 60079-0:2011
Device Dust Explosion Protection by Housing "t" ........... IEC 60079-31:2013
Explosion Protection, General Requirements ................. EN 60079-0:2012
Device Dust Explosion Protection by Housing "t" ........... EN 60079-31:2015
EMC ................................................................................. EN 61000-6-4: Sept. 2011 (industrial applications)
......................................................................................... EN 61000-6-2: Mar. 2006 (industrial applications)
Vibration: ......................................................................... IEC 60068-2-6, IEC 60068-2-27
Low Voltage: .................................................................... EN 61010-1: 2011
Protection level Da for
dust Ex zone 20, 21 or 22
max. 80°C
Protection level Db for
dust Ex zone 21 or 22
max. 55°C
Zone separation
