KROHNE SU501EX User Manual
Operating Instructions
SU 501 Ex
Signal conditioning instrument
Contents
Contents
1 About this document
1.1 Function .............................
1.2 Target group ..........................
1.3 Symbolism used .......................
2 For your safety
2.1 Authorised personnel ....................
2.2 Appropriate use........................
2.3 Warning about misuse ...................
2.4 General safety instructions ................
2.5 CE conformity .........................
2.6 Safety information for Ex areas.............
3 Product description
3.1 Configuration..........................
3.2 Principle of operation ....................
3.3 Adjustment ...........................
3.4 Storage and transport ...................
4 Mounting
4.1 General instructions .....................
4.2 Mounting information ....................
4
4
4
5
5
5
5
5
6
7
7
8
8
9
9
5 Connecting to power supply
5.1 Preparing the connection .................
5.2 Connection procedure ...................
5.3 Wiring plan ...........................
6 Set up
6.1 Adjustment system .....................
6.2 Adjustment elements ....................
7 Maintenance and fault rectification
7.1 Maintenance ..........................
7.2 Fault rectification .......................
7.3 Instrument repair .......................
8 Dismounting
8.1 Dismounting procedure ..................
8.2 Disposal .............................
9 Functional safety
9.1 General..............................
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Contents
9.2 Planning .............................
9.3 Setup ...............................
9.4 Reaction during operation and in case of failure.
9.5 Recurring function test ...................
9.6 Safety-related characteristics ..............
10 Supplement
10.1 Technical data.........................
10.2 Dimensions ...........................
10.3 Certificate ............................
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SU 501 Ex - Signal conditioning instrument 3
About this document
1 About this document
1.1 Function
This operating instructions manual has all the information you
need for quick setup and safe operation of SU 501 Ex. Please
read this manual before you start setup.
1.2 Target group
This operating instructions manual is directed to trained
personnel. The contents of this manual should be made
available to these personnel and put into practice by them.
1.3 Symbolism used
Information, tip, note
This symbol indicates helpful additional information.
Caution, warning, danger
This symbol informs you of a dangerous situation that could
occur. Ignoring this cautionary note can impair the person and/
or the instrument.
Ex applications
This symbol indicates special instructions for Ex applications.
l List
The dot set in front indicates a list with no implied sequence.
à Action
This arrow indicates a single action.
1 Sequence
Numbers set in front indicate successive steps in a procedure.
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For your safety
2 For your safety
2.1 Authorised personnel
All operations described in this operating instructions manual
must be carried out only by trained specialist personnel
authorised by the operator. For safety and warranty reasons,
any internal work on the instruments must be carried out only
by personnel authorised by the manufacturer.
2.2 Appropriate use
SU 501 Ex is a universal signal conditioning instrument for
connection of a level switch.
2.3 Warning about misuse
Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards, e.g. vessel overfill or damage to
system components through incorrect mounting or adjustment.
2.4 General safety instructions
SU 501 Ex is a high-tech instrument requiring the strict
observance of standard regulations and guidelines. The user
must take note of the safety instructions in this operating
instructions manual, the country-specific installation standards
(e.g. the VDE regulations in Germany) as well as all prevailing
safety regulations and accident prevention rules.
2.5 CE conformity
SU 501 ExisinCE conformity with EMC (89/336/EWG) and
NSR (73/23/EWG).
Conformity has been judged acc. to the following standards:
l EMC:
- Emission EN 50081-1: 1993
- Susceptibility EN 50082-2: 1995
l NSR: EN 61010-1: 1993
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SU 501 Ex - Signal conditioning instrument 5
For your safety
2.6 Safety information for Ex areas
Please note the Ex-specific safety information for installation
and operation in Ex areas. These safety instructions are part of
the operating instructions manual and come with the Exapproved instruments.
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3 Product description
3.1 Configuration
Product description
Scope of delivery
Components
The scope of delivery encompasses:
l SU 501 Ex signal conditioning instrument
l Documentation
- this operating instructions manual
SU 501 Ex consists of the following components:
l SU 501 Ex signal conditioning instrument
3
Fig. 1: SU 501 Ex
1 Ex separating chamber with Ex version
2 Socket
3 Transparent cover
1
2
TEST
on
56 78
910 121314
3.2 Principle of operation
Area of application
Physical principle
Power supply
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SU 501 Ex - Signal conditioning instrument 7
SU 501 Ex is a single signal conditioning instrument for
processing of vibrating level switches.
SU 501 Ex signal conditioning instrument can power connected instruments and process their measuring signals.
You can find detailed information on the power supply in the
"Technical data" in the "Supplement".
Product description
3.3 Adjustment
The integration time and the mode (A/B) can be preset on the
signal conditioning instrument via a DIL switch block.
A test key is lowered on the front plate of SU 501 Ex. When
pushing the key, the measuring system is checked on correct
function.
3.4 Storage and transport
Packaging
Storage and transport tempe-
rature
Your instrument was protected by packaging during transport.
Its capacity to handle normal loads during transport is assured
by a test acc. to DIN EN 24180.
The packaging of standard instruments consists of environ-
ment-friendly, recyclable cardboard. For special versions PE
foam or PE foil is also used. Dispose of the packaging material
via specialised recycling companies.
l Storage and transport temperature see "Supplement –
Technical data – Ambient conditions"
l Relative humidity 20 … 85 %
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4 Mounting
4.1 General instructions
Mounting
Installation location
Transparent cover
SU 501 Ex signal conditioning instrument with plug-in socket
for mounting on carrier rail acc. to EN 50022.
The front plate of SU 501 Ex can be provided with a lockable
transparent cover to protect the instrument against unauthorised adjustment. See the following figure for how to remove
the transparent cover.
Fig. 2: Removing the transparent cover
4.2 Mounting information
Mounting
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The plug-in socket is constructed for carrier rail mounting acc.
to EN 50022. Power supply is connected to terminals 9 and 10.
For neighbouring signal conditioning instruments, it is possible
to continue connection L1 and N directly via the supplied
bridges.
Danger:
The bridges must never be used with single instruments or at
the end of a row of instruments. If this rule is not heeded, there
is a danger of coming into contact with the operating voltage or
causing a short circuit.
Mounting
ASU501 ExinEx version is an auxiliary, intrinsically safe
instrument and must not be installed in hazardous areas.
Ex separating chamber
Instrument coding
Before setup, the Ex separating chamber must be attached (as
shown below) with Ex versions. Safe operation can be only
ensured if the operating instructions manual and the EU type
approval certificate are observed. SU 501 Ex must not be
opened.
Close the upper terminals acc. to the following illustration.
12 43
Fig. 3: Mounting the separating chamber
All signal conditioning instruments are provided with different
gaps dependent on type and version (mechanical coding).
The plug-in socket is provided with coded pins that can be
inserted to prevent accidental interchanging of the various
instrument types.
With a SU 501 ExinEx version, the supplied coded pins (type
coded pin and Ex coded pin) must be inserted by the user acc.
to the below chart.
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Mounting
4
3
2
1
EEx ia
A
B
Plug-in socket
C
Typ 600-1
1
2
3
0...10V
DISBUS
7
8
9
12
56 78
Fig. 4: Plug-in socket SU 501 Ex
1 Bridges for looping the power supply
2 Type coding for SU 501 Ex
3 Ex coding with Ex version
4 Ex separating chamber
4321
-
+
N
L
1
141312109
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