2
F
or your safety
2
.
1
A
uthorised personnel
A
ll operations described in this operating instructions manual
must be carried out only by trained specialist personnel
authorised by the operator
.
F
or safety and warranty reasons
,
any internal work on the instruments must be carried out only
by personnel authorised by the manufacturer
.
2
.
2
A
ppropriate use
SU
501
E
x is a universal signal conditioning instrument for
connection of a level switch
.
2
.
3
W
arning about misuse
I
nappropriate or incorrect use of the instrument can give rise to
application
-
speci
fi
c hazards
,
e
.
g
.
vessel over
fi
ll or damage to
system components through incorrect mounting or adjustment
.
2
.
4
G
eneral safety instructions
SU
501
E
x is a high
-
tech instrument requiring the strict
observance of standard regulations and guidelines
.
T
he user
must take note of the safety instructions in this operating
instructions manual
,
the country
-
speci
fi
c installation standards
(
e
.
g
.
the
VDE
regulations in
G
ermany
)
as well as all prevailing
safety regulations and accident prevention rules
.
2
.
5
CE
conformity
SU
501
E
x is in
CE
conformity with
EMC
(
89
/
336
/
EWG
)
and
NSR
(
73
/
23
/
EWG
).
C
onformity has been judged acc
.
to the following standards
:
l
EMC
:
-
E
mission
EN
50081
-
1
:
1993
-
S
usceptibility
EN
50082
-
2
:
1995
l
NSR
:
EN
61010
-
1
:
1993
SU
501
E
x
-
S
ignal conditioning instrument
5
F
or your safety
27953
-
EN
-
050616
