Xylem FLYGT 3171 - Page 9

lntroduction and Sa{ety
Condition
tution
Chemirals or
hazardous fluids on
skin
1. Remove contaminated clothing.
2. Wash the skin
with
soap
and watet
for
at
least 1 minute.
3. Seek mediGl attention,
if necessary.
Ex-approved
products
Follow these special
handling
instructions i{you have an
Ex'approved unit.
Personnel
requirements
These are the
personnel requirements
for Ex-approved
products in
potentially
explosive
atmospheres:
o
All work on
the
product must be carried out
by certified electricians
and
Xylem
authorized
mechanics. Special
rules apply to
installations
in
explosive
atmospheres.
.
All users
must know about
the risks of electric
current and the
chemical and
physical
characteristics
of the
gas, the vapor, or both
present in
hazardous
areas.
.
Any maintenance
for Ex-approved
products must conform
to international
and
national standards
(for
example,
IEC/EN 60079-17).
Xylem disclaims
all
responsibility
for work done by untrained
and
unauthorized
personnel.
Product and
product handling requir€ments
These are
the
product and
product handling
requirements
for Ex-approved
products in
potentially
explosive
atmospheres:
.
Only use
the
Product
in
accordance
with the approved
motor data'
.
You must fully submerge
the
Ex-approved
product during
normal operation.
Dry
running during
service
and inspection
is
only
permitted
outside
the
classified
area.
e
Before
you
start
work on
the
product, make sure
thatthe
product
and
the control
panel
aie
isolated
from the
power
supply
and
the control
circuit, so
they cannot
be
energized.
.
Do
not open
the
product while
it is
energized
or in an
explosive
gas atmosphere.
.
Make
sure that
thermal contacts
are
connected
to a
protection
circuit
according
to the
approval
classification
of the
Product,
and
that they
are in use'
.
Intrinsically
safe
circuits are
normally
required
forthe automatic
level-control
system
by
the level
regulator
if mounted
in zone 0.
.
The
yield stress of{asteners
must be
in
accordance
with the
approval
drawing and
the
Product
sPecification
o
Do
not modify the equipment
without a
pproval
from an
Ex-approved
Xylem
rePresentative.
'
Only use
Parts
that
are
Provided
by an
Ex-approved
Xylem
representative'
.
Some
gap and
diametrical clearances
could be
less than
the
values specified
in table
1
in
the
siandard
EN 60079-1.
Contact
Xylem
for any
maintenance
on flameproo{
joints.
Guidelines
for compliance
Compliance
is fulfilled
only
when you operate
the unit
within
its intended
use.
Do not
change
the
conditions
ofthe service
without
the approval
of-an
Ex'approved
Xylem
reprJsentative.
When
you install
or maintain explosion
proof produas,-always
comply
with the directive
and
applicable
standards
(for
example,
IEC/EN 60079-14)
Minimum
permitted liquid
level
See
the dimensional
drawings
of
the
product for the minimum
Permitted
liquid
level
according
to
the approvalfor
explosion
proof products.
lf
the
information
is missing on
the dimensional
drawing,
the
product must be
fully submerged
Level-sensing
equipment
must be
installed
if the
product can be operated
at
lessthan
the
minimum submersion
dePth.
Flygt 3171
lnstallation,
Operation,
and
Maintenance
Manual
6