KROHNE OPTISWITCH 3200 C User manual

Operating Instructions
OPTISWITCH 3200 C
with relay output

Contents
1About this document
1.1Function ............................. 4
1.2Target group .......................... 4
1.3Symbolism used ....................... 4
2For your safety
2.1Authorised personnel .................... 5
2.2Appropriate use........................ 5
2.3Warning about misuse ................... 5
2.4CE conformity ......................... 5
2.5SIL conformity ......................... 6
2.6Safety instructions for Ex areas ............ 6
3Product description
3.1Configuration.......................... 7
3.2Principle of operation.................... 7
3.3Operation ............................ 9
3.4Storage and transport ................... 9
4Mounting
4.1General instructions..................... 10
4.2Mounting instructions.................... 11
5Connecting to voltage supply
5.1Preparing the connection ................. 16
5.2Connection steps....................... 16
5.3Wiring plan,single chamber housing......... 17
6Set up
6.1General.............................. 20
6.2Adjustment elements .................... 20
6.3Function chart ......................... 21
7Maintenance and fault rectification
7.1Maintenance .......................... 23
7.2Rectify faults .......................... 23
7.3Exchange the electronics ................. 24
7.4Instrument repair ....................... 25
8Dismounting
8.1Dismounting procedure .................. 26
8.2Disposal ............................. 26
2OPTISWITCH 3200 C-with relay output
Contents
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9Supplement
9.1Technical data......................... 27
9.2Dimensions ........................... 30
Supplementary operating instructions manuals
Information:
OPTISWITCH 3200 Cis available in different versions.
Depending on the selected version,supplementary operating
instructions manuals may also come with the shipment.The
supplementary operating instructions manuals are listed in
section "Product description.
Operating instructions manuals for accessories and
replacement parts
Tip:
To ensure reliable setup and operation of your OPTISWITCH
3200 C,we offer accessories and replacement parts.The
associated documents are:
lOperating instructions manual "Oscillator"
lOperating instructions manual "Cable shortening set"
OPTISWITCH 3200 C-with relay output 3
Contents
29957-EN-060830

1About this document
1.1Function
This operating instructions manual has all the information you
need for quick setup and safe operation.Please read this
manual before you start setup.
1.2Target group
This operating instructions manual is directed to trained,
qualified personnel.The contents of this manual should be
made available to these personnel and put into practice by
them.
1.3Symbolism 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.
lList
The dot set in front indicates a list with no implied sequence.
àAction
This arrow indicates a single action.
1Sequence
Numbers set in front indicate successive steps in a procedure.
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About this document
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2For your safety
2.1Authorised 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.
2.2Appropriate use
OPTISWITCH 3200 Cis a sensor for level detection.
Detailed information on the application range of OPTISWITCH
3200 Cis available in chapter "Product description".
2.3Warning 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.
2.4General safety instructions
OPTISWITCH 3200 Cis 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.
2.5CE conformity
OPTISWITCH 3200 Cis in CE conformity with EMC (89/336/
EWG), fulfils NAMUR recommendation NE 21 and is in CE
conformity with LVD (73/23/EWG).
Conformity has been judged according to the following
standards:
lEMC:
-Emission EN 61326:1997 (class B)
-Susceptibility EN 61326:1997/A1:1998
lLVD:EN 61010-1:2001
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For your safety
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2.6SIL conformity
OPTISWITCH 3200 Cfulfills the requirements of functional
safety according to IEC 61508/IEC 61511.You can find further
information in the supplementary instructions manual "Safety
Manual -Functional safety (SIL)OPTISWITCH 3XXX".
2.7Safety instructions for Exareas
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 Ex-
approved instruments.
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For your safety
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3Product description
3.1Configuration
The scope of delivery encompasses:
lOPTISWITCH 3200 Clevel sensor
lDocumentation
-this operating instructions manual
-Supplementary instructions manual "Plug connector for
level sensors"(optional)
-Ex specific safety instructions (with Ex versions), if
necessary further certificates
OPTISWITCH 3200 Cconsists of the following components:
lHousing cover
lHousing with electronics
lprocess fitting with tuning fork
1
2
3
Fig.1:OPTISWITCH 3200 Cwith plastic housing
1Housing cover
2Housing with electronics
3Process fitting
3.2Principle of operation
OPTISWITCH 3200 Cis a level sensor with tuning fork for level
detection.
Scope of delivery
Components
Area of application
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It is designed for industrial use in all areas of process
technology and is preferably used for bulk solids.
Typical applications are overfill and dry run protection.Thanks
to its simple and robust measuring system,OPTISWITCH
3200 Cis virtually unaffected by the chemical and physical
properties of the bulk solid.
It functions even when exposed to strong external vibration or
changing products.
Solid detection in water
IfOPTISWITCH 3200 Cwas ordered for detection of solids in
water,the tuning fork is adjusted to the density of water.In the
air or when covered by water (density:1g/cm³/0.036 lbs/in)
OPTISWITCH 3200 Csignals "uncovered".Only if the
vibrating element is also covered with solids (e.g.sand,
sludge,gravel etc.) will the sensor signal "covered".
Fault monitoring
The electronics of OPTISWITCH 3200 Ccontinuously mon-
itors the following criteria:
lCorrect vibrating frequency
lLine break to the piezo drive
If one of the stated malfunctions is detected or in case of
power failure,the electronics takes on a defined switching
condition,i.e.the relay deenergises (safe condition).
The tuning fork is piezoelectrically energised and vibrates at its
mechanical resonance frequency of approx.150 Hz.When the
tuning fork is submerged in the product,the vibration
amplitude changes.This change is detected by the integrated
oscillator and converted into a switching command.
OPTISWITCH 3200 Cis a compact instrument,i.e.it can be
operated without external evaluation system.The integrated
electronics evaluates the level signal and outputs a switching
signal.With this switching signal,a connected device can be
directly activated (e.g.a warning system,aPLC,a pump etc.).
The exact range of the power supply is stated in the "Technical
data"in the "Supplement".
Physical principle
Power supply
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Product description
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3.3Operation
With the factory setting,products with a density of >0.02 g/cm³
(>0.0008 lbs/in³)can be measured.The instrument can also
be adapted to products with lower density >0.008 g/cm³
(>0.0003 lbs/in³).
On the electronics module you will find the following indicating
and adjustment elements:
lsignal lamp for indication of the switching condition (green/
red)
lpotentiometer for adaptation to the product density
lMode switch for selecting the switching condition (min./
max.)
3.4Storage and transport
Your instrument was protected by packaging during transport.
Its capacity to handle normal loads during transport is assured
by a test according to DIN 55439.
The packaging of standard instruments consists of environ-
ment-friendly,recyclable cardboard.In addition,the sensor is
provided with a protective cover of cardboard.For special
versions PE foam or PE foil is also used.Dispose of the
packaging material via specialised recycling companies.
lStorage and transport temperature see "Supplement -
Technical data -Ambient conditions"
lRelative humidity 20 …85 %
Packaging
Storage and transport tem-
perature
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Product description
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4Mounting
4.1General instructions
In general,OPTISWITCH 3200 Ccan be mounted in any
position.The instrument must be mounted in such a way that
the vibrating element is at the height of the requested switching
point.
Use the recommended cables (see chapter "Connecting to
power supply")and tighten the cable gland.
You can give your OPTISWITCH 3200 Cadditional protection
against moisture penetration by leading the connection cable
downward in front of the cable entry.Rain and condensation
water can thus drain off.This applies mainly to mounting
outdoors,in areas where moisture is expected (e.g.by
cleaning processes)or on cooled or heated vessels.
Fig.2:Measures against moisture penetration
Do not hold OPTISWITCH 3200 Con the vibrating element.
Especially with flange and tube versions,the sensor can be
damaged by the weight of the instrument.
Remove the protective cover just before mounting.
The process fitting must be sealed if there is gauge or low
pressure in the vessel.Before use,check if the seal material is
resistant against the measured product and the process
temperature.
The max.permissible pressure is stated in the "Technical
data"in the "Supplement"or on the type label of the sensor.
Switching point
Moisture
Transport
Pressure/Vacuum
10 OPTISWITCH 3200 C-with relay output
Mounting
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