Siemens SITRANS LVL200S User manual

Operating Instructions • 11/2016
Vibrating Switches
SITRANS LVL200S
TRANSISTOR (NPN/PNP)
Siemens Controls

2*7ML19985KS01*SITRANS LVL200S - Operating Instructions
33837-EN-161128

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*7ML19985KS01* SITRANS LVL200S - Operating Instructions
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Contents
1 About this document
1.1 Function ........................................................................................................................... 5
1.2 Target group ..................................................................................................................... 5
1.3 Symbols used................................................................................................................... 5
2 For your safety
2.1 Authorised personnel ....................................................................................................... 6
2.2 Appropriate use................................................................................................................ 6
2.3 Warning about incorrect use............................................................................................. 6
2.4 General safety instructions............................................................................................... 6
2.5 Safety label on the instrument .......................................................................................... 7
2.6 EU conformity................................................................................................................... 7
2.7 SIL conformity .................................................................................................................. 7
2.8 Safety instructions for Ex areas ........................................................................................ 7
3 Product description
3.1 Conguration.................................................................................................................... 8
3.2 Principle of operation........................................................................................................ 8
3.3 Adjustment ....................................................................................................................... 9
3.4 Storage and transport....................................................................................................... 9
3.5 Accessories.................................................................................................................... 10
4 Mounting
4.1 General instructions ....................................................................................................... 11
4.2 Mounting instructions ..................................................................................................... 14
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 16
5.2 Connection procedure.................................................................................................... 16
5.3 Wiring plan, single chamber housing.............................................................................. 17
6 Setup
6.1 General information........................................................................................................ 19
6.2 Adjustment elements...................................................................................................... 19
6.3 Function table................................................................................................................. 20
7 Maintenanceandfaultrectication
7.1 Maintenance .................................................................................................................. 21
7.2 Rectify faults................................................................................................................... 21
7.3 Exchanging the electronics ............................................................................................ 22
7.4 How to proceed if a repair is necessary.......................................................................... 22
8 Dismount
8.1 Dismounting steps.......................................................................................................... 23
8.2 Disposal ......................................................................................................................... 23
9 Supplement
9.1 Technical data ................................................................................................................ 24
9.2 Dimensions .................................................................................................................... 31
9.3 Trademark ...................................................................................................................... 34
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Safety instructions for Ex areas
TakenoteoftheExspecicsafetyinstructionsforExapplications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions manual.
Editing status: 2016-11-18

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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 Symbols 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.
SIL applications
This symbol indicates instructions for functional safety which must be
taken into account particularly for safety-relevant 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
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
The SITRANS LVL200S is a sensor for point level detection.
Youcannddetailedinformationabouttheareaofapplication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 state-of-the-art instrument complying with all prevailing
regulations and guidelines. The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsible
for the trouble-free operation 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.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
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.
The safety approval markings and safety tips on the device must also
be observed.

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2.5 Safety label on the instrument
The safety approval markings and safety tips on the device must be
observed.
2.6 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUguide-
lines.ByaxingtheCEmarking,weconrmsuccessfultestingofthe
product.
2.7 SIL conformity
SITRANSLVL200Sfullstherequirementstofunctionalsafetyac-
cordingtoIEC61508orIEC61511.Youndfurtherinformationinthe
Safety Manual "SITRANS LVL200".
2.8 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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8*7ML19985KS01*SITRANS LVL200S - Operating Instructions
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3 Product description
3.1 Conguration
The scope of delivery encompasses:
• SITRANS LVL200S point level switch
• Documentation
– This operating instructions manual
– Safety Manual "Functional safety (SIL)" (optional)
– Ex-specic"Safety instructions" (with Ex versions)
– Ifnecessary,furthercerticates
The SITRANS LVL200S consists of the components:
• Housing lid
• Housing with electronics
• Processttingwithtuningfork
1
2
3
Fig. 1: SITRANS LVL200S
1 Housing lid
2 Housing with electronics
3 Processtting
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
• Article number
• Serial number
• Technical data
• Article numbers, documentation
• SILidentication(withSILratingexworks)
3.2 Principle of operation
SITRANS LVL200S is a point level sensor with tuning fork for point
level detection.
It is designed for industrial use in all areas of process technology and
can be used in liquids.
Typicalapplicationsareoverllanddryrunprotection.Withitstuning
fork of only 40 mm length, SITRANS LVL200S can also be mounted
Scope of delivery
Constituent parts
Type label
Application area

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e.g. in pipelines from DN 32.The small tuning fork allows use in
vessels, tanks and pipes.Thanks to its simple and robust measuring
system,SITRANSLVL200Sisvirtuallyunaectedbythechemical
and physical properties of the liquid.
Itfunctionsevenunderdicultconditionssuchasturbulence,airbub-
bles, foam generation, buildup, strong external vibration or changing
products.
Function monitoring
The electronics module of SITRANS LVL200S continuously monitors
the following criteria via frequency evaluation:
• Strong corrosion or damage on the tuning fork
• Loss of vibration
• Linebreaktothepiezodrive
If a malfunction is detected or in case of power failure, the electronics
takesonadenedswitchingcondition,i.e.theoutputisopen(safe
state).
Thetuningforkispiezoelectricallyenergisedandvibratesatits
mechanicalresonancefrequencyofapprox.1200Hz.Thepiezosare
xedmechanicallyandarehencenotsubjecttotemperatureshock
limitations.The frequency changes when the tuning fork is covered
by the medium.This change is detected by the integrated electronics
module and converted into a switching command.
SITRANS LVL200S is a compact instrument, i.e. it can be oper-
ated 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 operated directly (e.g. a
warning system, a pump etc.).
Thedataforpowersupplyarespeciedinchapter"Technical data".
3.3 Adjustment
Withthefactorysetting,productswithadensity≥0.7g/cm³
(0.025lbs/in³)canbedetected.Theinstrumentcanbeadaptedto
products with lower density.
Ontheelectronicsmoduleyouwillndthefollowingdisplayand
adjustment elements:
• Signal lamp for indication of the switching condition (green/red)
• DIL switch for sensitivity adjustment
• Mode adjustment for selection of the switching condition (A/B)
3.4 Storage and transport
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 carton material. The sensing element is additional-
ly protected with a cardboard cover. For special versions, PE foam or
Functional principle
Voltage supply
Packaging Siemens Controls

10 *7ML19985KS01*SITRANS LVL200S - Operating Instructions
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PE foil is also used. Please dispose of the packaging material through
specialised recycling companies.
Transport must be carried out in due 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 %
3.5 Accessories
Screwedangesareavailableindierentversionsaccordingtothe
following standards: DIN 2501, EN 1092-1, BS 10, ASME B 16.5,
JIS B 2210-1984, GOST 12821-80.
Youcanndadditionalinformationinthesupplementaryinstructions
manual "Flanges according to DIN-EN-ASME-JIS".
The electronics module SW E60 is a replacement part for level switch-
es SITRANS LVL200S.
Youcanndinformationintheoperatinginstructionsmanualofthe
electronics module.
For connecting the sensors with a separator to voltage supply or sig-
nal processing, the sensors are also available with plug connectors.
The following plug connectors are available:
• M12 x 1
• ISO 4400
• Harting HAN 7D
• Harting HAN 8D
• Amphenol-Tuchel
Transport
Transport inspection
Storage
Storage and transport
temperature
Flanges
Electronics module
Plug connector

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4 Mounting
4.1 General instructions
Make sure that all parts of the instrument coming in direct contact
with the process, especially the sensor element, process seal and
processtting,aresuitablefortheexistingprocessconditions,such
as process pressure, process temperature as well as the chemical
properties of the medium.
Youcanndthespecicationsinchapter"Technical data" and on the
nameplate.
In general, SITRANS LVL200S can be installed in any position.The
instrument only has to be mounted in such a way that the tuning fork
is at the height of the desired switching point.
The tuning fork has lateral markings (notches) that indicate the
switching point with vertical mounting. The switching point applies
to water in conjunction with the basic setting of the density switch
≥0.7g/cm³(0.025lbs/in³).WhenmountingSITRANSLVL200S,
make sure that this marking is at the height of the requested switch-
ing point. Keep in mind that the switching point of the instrument will
shiftifthemediumhasadensityotherthanwater-wateris1g/cm³
(0.036lbs/in³).Forproducts≤0.7g/cm³(0.025lbs/in³)and≥0.5g/
cm³(0.018lbs/in³)thedensityswitchmustbesetto≥0.5g/cm³.
Keepinmindthatfoamswithadensity≥0.45g/cm³(0.016lbs/in³)
are detected by the sensor. This can lead to erroneous switchings,
particulary when the sensor is used for dry run protection.
Suitability for the process
conditions
Switching point
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2
3
14
Fig. 2: Vertical mounting
1 Switching point approx. 13 mm (0.51 in)
2 Switching point with lower density
3 Switching point with higher density
4 Switching point approx. 27 mm (1.06 in)
1
Fig. 3: Horizontal mounting
1 Switching point
1
2
Fig. 4: Horizontal installation (recommended mounting position, particularly for
adhesive products)
1 Switching point
2 Marking with screwed version, facing up
Inthecaseofangeversions,theforkisalignedasfollows.

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1
Fig.5:Forkpositionwithangeversions
1 Markingwithangeversion,facingup
Use the recommended cables (see chapter "Connecting to power
supply") and tighten the cable gland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cableentry.Rainandcondensationwatercanthusdraino.Thisap-
plies mainly to outdoor mounting as well as installation in areas where
high humidity is expected (e.g. through cleaning processes) or on
cooled or heated vessels.
Fig. 6: Measures against moisture ingress
Caution:
Do not hold SITRANS LVL200S on the tuning fork. Particularly with
angeortubeversions,thetuningforkcanbedamagedjustbythe
weight of the instrument.Transport coated instruments very carefully
and avoid touching the tuning fork.
Remove the packaging or the protective cover just before installation.
Theprocesstting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.
Moisture
Transport
Pressure/Vacuum Siemens Controls

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Themax.permissiblepressureisspeciedinchapter"Technical
data" or on the type label of the sensor.
The vibrating level switch is a measuring instrument and must be
treated accordingly. Bending the vibrating element will destroy the
instrument.
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
Use the hexagon above the thread for screwing in.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory.They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
4.2 Mounting instructions
SITRANSLVL200Shasadenedthreadstartingpoint.Thismeans
that every SITRANS LVL200S is in the same fork position after being
screwed in. Remove therefore the supplied seal from the thread of
SITRANS LVL200S.This seal is not required when using a welded
socket with O-ring in front.
Keep in mind that this welded socket is not suitable for coated instru-
ment versions.
Screw SITRANS LVL200S completely into the welded socket. The
later position can be determined already before welding. Mark the
appropriate position of the welded socket. Before welding, unscrew
SITRANS LVL200S and remove the rubber ring from the welded
socket. The welded socket has a marking (notch). Weld the socket
with the notch facing upward, or in case of pipelines (DN 32 up to
DN50),alignedwiththedirectionofow.
Handling
Cable entries - NPT
thread
Cable glands
Welded socket

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1
Fig. 7: Marking on the welded socket
1 Marking
Incaseofhorizontalmountinginadhesiveandviscousproducts,
the surfaces of the tuning fork should be vertical in order to reduce
builduponthetuningfork.Onthescrewedversionyouwillnda
marking on the hexagon. With this you can check the position of the
tuning fork when screwing it in. When the hexagon touches the seal,
thethreadcanstillbeturnedbyapprox.halfaturn.Thisissucientto
reach the recommended installation position.
Inthecaseofangeversions,theforkisalignedwiththeangeholes.
When used in adhesive and viscous products, the tuning fork should
protrude into the vessel to avoid buildup. For that reason, sockets
forangesandmountingbossesshouldbeavoidedwhenmounting
horizontally.
IfSITRANSLVL200Sismountedinthellingstream,unwanted
false measurement signals can be generated. For this reason, mount
SITRANS LVL200S at a position in the vessel where no disturbances,
e.g.fromllingopenings,agitators,etc.,canoccur.
To make sure the tuning fork of SITRANS LVL200S generates as little
resistanceaspossibletoproductow,mountthesensorsothatthe
surfaces are parallel to the product movement.
The second seal of the gas-tight leadthrough (option) prevents an
uncontrolled leakage of the medium.The service life of the gas-tight
leadthrough depends on the chemical resistance of the materials.
See "Technical data".
Caution:
If it is determined (e.g. via an error message from SITRANS LVL200S)
that medium has already penetrated into the vibrating element, the
instrument must be exchanged immediately.
Adhesive products
Inowingmedium
Productow
Gas-tight leadthrough
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5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Warning:
Connect only in the complete absence of line voltage.
• The electrical connection must only be carried out by trained
personnel authorised by the plant operator.
• Alwaysswitchopowersupply,beforeconnectingordisconnect-
ing the instrument.
Inhazardousareasyoumusttakenoteoftherespectiveregulations,
conformityandtypeapprovalcerticatesofthesensorsandpower
supply units.
Connect the voltage supply according to the following diagrams.Take
note of the general installation regulations. As a rule, connect SI-
TRANS LVL200S to vessel ground (PA), or in case of plastic vessels,
to the next ground potential. On the side of the instrument housing
there is a ground terminal between the cable entries.This connection
servestodrainoelectrostaticcharges.InExapplications,theinstal-
lationregulationsforhazardousareasmustbegivenpriority.
Thedataforpowersupplyarespeciedinchapter"Technical data".
The instrument is connected with standard two-wire cable without
screen. If electromagnetic interference is expected which is above the
test values of EN 61326 for industrial areas, screened cable should
be used.
Use cable with round cross-section. A cable outer diameter of
5…9mm(0.2…0.35in)ensuresthesealeectofthecablegland.
Ifyouareusingcablewithadierentdiameterorcross-section,
exchange the seal or use a suitable cable gland.
Inhazardousareas,useonlyapprovedcableconnectionsforSI-
TRANS LVL200S.
Take note of the corresponding installation regulations for Ex applica-
tions.
Cover all housing openings conforming to standard according to
EN 60079-1.
5.2 Connection procedure
With Ex instruments, the housing cover may only be opened if there is
no explosive atmosphere present.
Proceed as follows:
1. Unscrew the housing lid
2. Loosen compression nut of the cable gland and remove blind
plug
Note safety instructions
Take note of safety
instructions for Ex
applications
Voltage supply
Connection cable
Connection cable
for Ex applications

17
*7ML19985KS01* SITRANS LVL200S - Operating Instructions
33837-EN-161128
3. Remove approx. 10 cm (4 in) of the cable mantle, strip approx.
1 cm (0.4 in) of insulation from the ends of the individual wires
4. Insert the cable into the sensor through the cable entry
5. Open the terminals with a screwdriver
6. Insert the wire ends into the open terminals according to the wir-
ing plan
7. Tighten the terminals with a screwdriver
8. Check the hold of the wires in the terminals by lightly pulling on
them
9. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
10. Screw the housing lid back on
Theelectricalconnectionisnished.
5.3 Wiring plan, single chamber housing
The following illustrations apply to the non-Ex as well as to the Ex-d
version.
3
5
1
2
4
SW E60T
10-55V DC
1PNP2341
NPN
234
A
B
0,5g/ cm3
0,7 g / cm3
max 400mA
out
12 34
+
++
Fig. 8: Electronics and terminal compartment, single chamber housing
1 Control lamp
2 DIL switch for mode adjustment
3 DIL switch for switching point adaptation
4 Ground terminal
5 Connection terminals
We recommend connecting SITRANS LVL200S in such a way that
the switching circuit is open when there is a level signal, line break or
failure (safe state).
The instrument is used to control relays, contactors, magnet valves,
warning lights, horns as well as PLC inputs.
Electronics and terminal
compartment
Wiring plan Siemens Controls

18 *7ML19985KS01*SITRANS LVL200S - Operating Instructions
33837-EN-161128
Caution:
There is no reverse polarity protection.Take note of the polarity of the
output lines.
+ -
1234
+-
Fig. 9: NPN action
+ -
1234
+-
Fig. 10: PNP action

19
*7ML19985KS01* SITRANS LVL200S - Operating Instructions
33837-EN-161128
6 Setup
6.1 General information
Theguresinbracketsrefertothefollowingillustrations.
Inthebasicsetting,productswithadensity≥0.7g/cm³(0.025lbs/in³)
can be detected. For products with lower density, you have to set the
switchto≥0.5g/cm³(0.018lbs/in³).
Ontheelectronicsmoduleyouwillndthefollowingdisplayand
adjustment elements:
• Control lamp for indication of the switching condition (1)
• DIL switch for mode adjustment - A/B (2)
• DIL switch for sensitivity adjustment (3)
Note:
Always immerse the tuning fork of SITRANS LVL200S in a liquid to
test its function. Do not test the function of SITRANS LVL200S with
your hand.This can damage the sensor.
6.2 Adjustment elements
1234
1
2
3
Fig. 11: Oscillator SWE60T - Transistor output
1 Control lamp (LED)
2 DIL switch for mode adjustment
3 DIL switch for sensitivity adjustment
Control lamp for indication of the switching status
• Green = Output closed
• Red = Output open
• red(ashing)=failure
With the mode adjustment (A/B) you can change the switching
condition of the relay.You can set the required mode according to the
"Function table"(A-max.detectionoroverowprotection,B-min.
detection or dry run protection).
Function/Conguration
Signal lamp (1)
Mode adjustment (2) Siemens Controls

20 *7ML19985KS01*SITRANS LVL200S - Operating Instructions
33837-EN-161128
With this DIL switch (3) you can set the switching point to liquids
havingadensitybetween0.5and0.7g/cm³(0.018and0.025lbs/
in³).Withthebasicsetting,liquidswithadensityof≥0.7g/cm³(0.025
lbs/in³)canbedetected.Inliquidswithlowerdensity,youmustset
theswitchto≥0.5g/cm³(0.018lbs/in³).Thespecicationsforthe
positionoftheswitchingpointrelatetowater-densityvalue1g/cm³
(0.036lbs/in³).Inproductswithadierentdensity,theswitchingpoint
will shift in the direction of the housing or tuning fork end depending
on the density and type of installation.
Note:
Keepinmindthatfoamswithadensity≥0.45g/cm³(0.016lbs/in³)
are detected by the sensor. This can lead to erroneous switchings,
particulary when the sensor is used for dry run protection.
6.3 Function table
The following table provides an overview of the switching conditions
depending on the set mode and the level.
Level Switching status Control lamp
Mode A
Overowprotec-
tion
closed
Green
Mode A
Overowprotec-
tion
open
Red
Mode B
Dry run protection
closed
Green
Mode B
Dry run protection
open
Red
Failure of the sup-
ply voltage
(mode A/B)
any open
O
Fault any open
ashesred
Sensitivity adjustment (3)