19
When connected to a certified IECEx system the
BA444NDF-P may be installed in:
Zone 22 explosive atmosphere in the
form of a cloud of
combustible dust in air is not
likely to occur in normal
operation, but if it does
occur, will only persist for a
short period.
Be used in the presence of dusts having the
following Minimum Ignition Temperatures:
Dust cloud
150°C
Dust layer on BA444NDF-P
175°C
up to 5mm thick
Dust layer on BA444NDF-P
Refer to
over 5mm thick.
IEC 61241-14
At an ambient temperature between -20 and
+60°C.
The IECEx certificate may be downloaded from
www.beka.co.uk, www.iecex.com or requested
from the BEKA sales office.
WARNING
The IECEx dust certification relies on the
PROFIBUS PA Indicator enclosure being
dust-tight. Therefore the terminal cover
should only be removed when dust can
not enter the instrument enclosure.
Before replacing the terminal cover
ensure that the sealing gaskets are
undamaged and are free from foreign
bodies.
Summary of Contents for BA444NDF-P
Page 9: ...7 Fig 3 Dimensions and terminal connections...
Page 12: ...10...
