A SU
501
E
x in
E
x version is an auxiliary
,
intrinsically safe
instrument and must not be installed in hazardous areas
.
B
efore setup
,
the
E
x separating chamber must be attached
(
as
shown below
)
with
E
x versions
.
S
afe operation can be only
ensured if the operating instructions manual and the
EU
type
approval certi
fi
cate are observed
.
SU
501
E
x must not be
opened
.
C
lose the upper terminals acc
.
to the following illustration
.
1
2
4
3
F
ig
.
3
:
M
ounting the separating chamber
A
ll signal conditioning instruments are provided with di
ff
erent
gaps dependent on type and version
(
mechanical coding
).
T
he plug
-
in socket is provided with coded pins that can be
inserted to prevent accidental interchanging of the various
instrument types
.
W
ith a
SU
501
E
x in
E
x version
,
the supplied coded pins
(
type
coded pin and
E
x coded pin
)
must be inserted by the user acc
.
to the below chart
.
E
x separating chamber
I
nstrument coding
10
SU
501
E
x
-
S
ignal conditioning instrument
M
ounting
27953
-
EN
-
050616
