GE Masoneilan 469 Series Instruction Manual page 23
Position transmitter and limit switch
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11. Special Conditions of Use (Contd.)
11.2 Intrinsically safe apparatus: Types 496-.58, 496-858 and 496-858/.
• The cable entry must have a protection level at least
equal to IP6X according to EN 60529 standards.
• For the 496 housing with aluminum material, the
user will have to determine the use of the device
for group II category 1 (zone 0) against potential
inflammable source causing by sparks in the event
of impact or friction.
• The voltage supply connected on each 496
connectors must be certified for use in group
IIC and the loop intrinsic safety approved. The
entity parameters of the voltage supply must
be compatible with the entity parameters of
the 496 described §4.2.
11.3 Explosion proof apparatus:
Types 496-.57, 496-857
and 496-857/.
• When the ambient temperature is higher than 70°C,
the user will have to choose a cable entry and a
cable compatible with the data of the table below:
T ambient
70°C
75°C
80°C
85°C
• The minimal temperature of the cable is indicated on
the serial plate.
• When the ambient temperature is lower than -20°C,
the user will have to choose a cable entry and a
cable compatible with the ambient temperature
specified on the marking plate.
© 2018 Baker Hughes, a GE company. All rights reserved.
• The cable entry must have a degree of protection at
least equal to IP66/67.
• Use only the following greases for the explosion-
proof gaskets, shaft, cover threads, cable gland and
plug for Y237:
MOLYKOTE 111 COMPOUND
• All mechanical parts coupled with the limit switch or
transmitter and likely to generate a spark or a hot
surface will have to be the object, on behalf of the
user, an analysis of the risks in agreement with the
Directive 94/9/CE. The user will have to follow the
conformity module adapted to the zone in which it
will be installed.
• The shaft joint tolerance is lower than one defined by
T cable
the standard EN 60079-1. It must be respected with a
75°C
maximum radial gap of 0.133mm.
80°C
• The length of explosion-proof gaskets is greater than
the one defined in the sheet of EN 60079-1.
85°C
90°C
496 Series Masoneilan Position Transmitter ATEX Instruction Manual | 23
Type
SI 33
GRAPHENE 702
MULTILUB
GRIPCOTT NF
Manufacturer
ORAPI
ORAPI
MOLYKOTE®
MOLYKOTE®
MOLYDAL
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