KROHNE DK 32-DK 34 ATEX II3G Ex nA-ic EN - Manual (Page 9)

INSTALLATION
3
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DK32 DK34
www.krohne.com 03/2013 - 4002148602 AD DK32/34 II3G R03 en
Installation
3.1 Special conditions
The protective glass on the display of the variable area flowmeter may not be exposed to any
mechanical load.
During operation as non-sparking equipment "nA" only suitable for connection to switch
amplifiers in accordance with NAMUR (IEC 60947-5-6).
During operation as intrinsically safe equipment "ic" only for connection to separated
intrinsically safe circuit. In addition, for the variant with the cable assembly, a light blue hose
must be shrink fitted onto the connecting cable on the connector plug and on the cable end (the
hose is included in delivery) or other appropriate measures must be taken.
3.2 Installation
Installation and setup must be carried out according to the applicable installation installation
standards (e.g. EN 60079-14) by qualified personnel trained in explosion protection. The
information given in the Installation and Operation Instructions and the Supplementary
Installation and Operation Instructions must always be observed.
Variable area flowmeters must be installed in such a way that
• There is no danger from mechanical impact effects.
• There are no external forces affecting the indicator part.
• The device is accessible for any visual inspections that are necessary, and can be viewed from
all sides.
• The nameplate is clearly visible.
• It can be operated from a location with secure footing.
INFORMATION!
Marking connecting points in accordance with EN 60079-11:
Marking connecting points in accordance with EN 60079-11: Marking connecting points in accordance with EN 60079-11: Marking connecting points in accordance with EN 60079-11: Connecting points, terminal boxes
and connectors of intrinsically safe equipment and accompanying equipment must be uniquely
marked and clearly identifiable. If a colour is used for this, it must be light blue.
CAUTION!
The manufacturer is not liable for any damage resulting from improper use or use other than the
intended purpose. This applies in particular to hazards due to insufficient corrosion resistance
and suitability of the materials in contact with product.
AD_DK32_34_II3G_R03_en_4002148602_PRT.book Page 9 Thursday, March 7, 2013 6:42 AM