KROHNE SU 501 Ex User manual

Operating Instructions
SU 501 Ex
Signal conditioning instrument
Document
ID: 27953

2
Contents
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
Contents
1 About this document
1.1 Function ........................................................................................................................... 3
1.2 Target group ..................................................................................................................... 3
1.3 Symbolism used............................................................................................................... 3
2 For your safety
2.1 Authorised personnel ....................................................................................................... 4
2.2 Appropriate use................................................................................................................ 4
2.3 Warning about incorrect use............................................................................................. 4
2.4 General safety instructions............................................................................................... 4
2.5 Safety label on the instrument .......................................................................................... 4
2.6 CE conformity................................................................................................................... 5
2.7 Safety instructions for Ex areas ........................................................................................ 5
3 Product description
3.1 Conguration.................................................................................................................... 6
3.2 Principle of operation........................................................................................................ 6
3.3 Adjustment ....................................................................................................................... 7
3.4 Packaging, transport and storage..................................................................................... 7
4 Mounting
4.1 General instructions ......................................................................................................... 8
4.2 Mounting instructions ....................................................................................................... 8
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 11
5.2 Connection procedure.................................................................................................... 11
5.3 Wiring plan ..................................................................................................................... 12
6 Setup
6.1 Adjustment system......................................................................................................... 13
6.2 Adjustment elements...................................................................................................... 14
6.3 Function chart ................................................................................................................ 17
7 Maintenanceandfaultrectication
7.1 Maintenance .................................................................................................................. 19
7.2 Rectify faults................................................................................................................... 19
7.3 Instrument repair ............................................................................................................ 21
8 Dismounting
8.1 Dismounting steps.......................................................................................................... 23
8.2 Disposal ......................................................................................................................... 23
9 Supplement
9.1 Technical data ................................................................................................................ 24
9.2 Dimensions .................................................................................................................... 26
Editing status: 2012-05-10

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1 About this document
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
1 About this document
1.1 Function
This operating instructions manual provides all the information you
need for mounting, connection and setup as well as important instruc-
tionsformaintenanceandfaultrectication.Pleasereadthisinforma-
tion before putting the instrument into operation and keep this manual
accessible in the immediate vicinity of the device.
1.2 Target group
This operating instructions manual is directed to trained specialist
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: If this warning is ignored, faults or malfunctions can result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.
Ex applications
This symbol indicates special instructions for Ex applications.
•List
The dot set in front indicates a list with no implied sequence.
→ Action
This arrow indicates a single action.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

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2 For your safety
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
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
plant operator.
During work on and with the device the required personal protective
equipment must always be worn.
2.2 Appropriate use
SU 501 Ex is a universal signal conditioning instrument for connection
of a level switch.
Yo u cannddetailedinformationontheapplicationrangeinchapter
"Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.
2.3 Warning about incorrect use
Inappropriate or incorrect use of the instrument can give rise to
application-specichazards,e.g.vesseloverllordamagetosystem
components through incorrect mounting or adjustment.
2.4 General safety instructions
This is a high-tech instrument requiring the strict observance of stand-
ard regulations and guidelines. The user must take note of the safety
instructionsinthisoperatinginstructionsmanual,thecountry-specic
installation standards as well as all prevailing safety regulations and
accident prevention rules.
Theinstrumentmustonlybeoperatedinatechnicallyawlessand
reliable condition. The operator is responsible for trouble-free opera-
tion of the instrument.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.

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2 For your safety
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
2.6 CE conformity
ThisdevicefulllsthelegalrequirementsoftheapplicableECguide-
lines.ByattachingtheCEmark,weprovideconrmationofsuccess-
ful testing.
2.7 Safety instructions for Ex areas
PleasenotetheEx-specicsafetyinformationforinstallationandop-
eration in Ex areas. These safety instructions are part of the operating
instructions manual and come with the Ex-approved instruments.

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3 Product description
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
3 Product description
3.1 Conguration
The scope of delivery encompasses:
•SU 501 Ex signal conditioning instrument
•Terminal socket
•Bridges (4 pieces)
•Coded pins (2 pieces)
•Ex label
•Ex separating chamber
•Documentation
– this operating instructions manual
– Ex-specic"Safety instructions" (with Ex versions)
– ifnecessary,furthercerticates
The SU 501 Ex consists of:
•SU 501 Ex signal conditioning instrument
56 78
910121314
TEST
on
3
1
2
Fig. 1: SU 501 Ex
1 Ex separating chamber with Ex version
2 Terminal socket
3 Transparent cover
Thenameplatecontainsthemostimportantdataforidenticationand
use of the instrument:
•Article number
•Serial number
•Technical data
•Article numbers, documentation
3.2 Principle of operation
SU 501 Ex is a single signal conditioning instrument for processing of
vibrating level switches.
Scope of delivery
Constituent parts
Type plate
Application area

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3 Product description
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
The SU 501 Ex signal conditioning instrument powers connected sen-
sors and simultaneously processes their measuring signals.
When the medium reaches the switching point of the sensor, the volt-
age on the sensor drops. The output relays then switch according to
the set mode.
Wide-range power supply unit with 20 … 253 V AC/DC for world-wide
use.
Detailed information about the power supply can be found in chapter
"Technical data".
3.3 Adjustment
The switching delay 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 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out under consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
•Not in the open
•Dry and dust free
•Not exposed to corrosive media
•Protected against solar radiation
•Avoiding mechanical shock and vibration
•Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
•Relative humidity 20 … 85 %
Functional principle
Voltage supply
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature

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4 Mounting
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
4 Mounting
4.1 General instructions
SU 501 Ex signal conditioning instrument with plug-in socket for
mounting on carrier rail according to EN 50022.
The front plate of SU 501 Ex can be provided with a lead-sealable
transparent cover to protect the instrument against unauthorised or
inadvertentadjustment.Seethefollowinggureonhowtoremovethe
transparent cover.
Fig. 2: Removing the transparent cover
For moisture-protected mounting outside the switching cabinet, we
oeraninsulatedprotectivehousingwithtransparentcover(IP65)for
surface mounting.
In this housing you can mount a maximum of 3 instruments of 36 mm
width.
4.2 Mounting instructions
The plug-in socket is constructed for carrier rail mounting according
to EN 50022. Operating voltage 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.
A SU 501 Ex in Ex version is an auxiliary, intrinsically safe instrument
and may not be installed in explosion-endangered areas.
Installation place
Transparent cover
Housing IP 65
Installation

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4 Mounting
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
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EGtypeapprovalcerticate
are observed. SU 501 Ex must not be opened.
Close the upper terminals according to the following illustration.
12 43
Fig. 3: Mounting the separating chamber
Allsignalconditioninginstrumentsareprovidedwithdierent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 Ex in Ex version, the supplied coded pins (type coded
pin and Ex coded pin) must be inserted by the user according to the
below chart.
Ex separating chamber
Instrument coding

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4 Mounting
SU 501 Ex • Signal conditioning instrument
27953-EN-130627
Typ 600-1
56 78
141312109
4321
EEx ia
+
-
L1
N
DISBUS
0...10V
9
8
7
3
2
1
C
B
A
12
Plug-in socket
2
1
3
4
Fig. 4: Plug-in socket SU 501 Ex
1 Bridges for looping the operating voltage
2 Type coding for SU 501 Ex
3 Ex coding with Ex version
4 Ex separating chamber