Siemens SITRANS LVL100 User manual

Operating Instructions • 07/2013
Vibrating Switches
SITRANS LVL100
- transistor (PNP)

2SITRANS LVL100 - Operating Instructions
43191-EN-141016

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SITRANS LVL100 - Operating Instructions
43191-EN-14101643191-EN-141016
Contents
1 About this document
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbolism used............................................................................................................... 4
2 For your safety
2.1 Authorised personnel ....................................................................................................... 5
2.2 Appropriate use................................................................................................................ 5
2.3 Warning about incorrect use............................................................................................. 5
2.4 General safety instructions............................................................................................... 5
2.5 Safety label on the instrument .......................................................................................... 5
2.6 CE conformity................................................................................................................... 6
3 Product description
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 7
3.3 Adjustment ....................................................................................................................... 8
3.4 Storage and transport....................................................................................................... 8
4 Mounting
4.1 General instructions ....................................................................................................... 10
4.2 Mounting instructions ..................................................................................................... 12
5 Connecting to power supply
5.1 Preparing the connection ............................................................................................... 14
5.2 Wiring plan ..................................................................................................................... 14
6 Setup
6.1 Indication of the switching status.................................................................................... 18
6.2 Simulation ...................................................................................................................... 18
6.3 Function chart ................................................................................................................ 19
7 Maintenanceandfaultrectication
7.1 Maintenance .................................................................................................................. 20
7.2 Rectify faults................................................................................................................... 20
7.3 Instrument repair ............................................................................................................ 20
8 Dismounting
8.1 Dismounting steps.......................................................................................................... 21
8.2 Disposal ......................................................................................................................... 21
9 Supplement
9.1 Technical data ................................................................................................................ 22
9.2 Dimensions .................................................................................................................... 25
Editing status: 2013-07-10

4SITRANS LVL100 - Operating Instructions
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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 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
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 LVL100 is a sensor for point level detection.
You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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2.6 CE conformity
ThedevicefulllsthelegalrequirementsoftheapplicableECguide-
lines.ByaxingtheCEmarking,weconrmsuccessfultestingofthe
product.

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3 Product description
3.1 Conguration
The scope of delivery encompasses:
• SITRANS LVL100 point level switch
• Test magnet
• Documentation
– this operating instructions manual
– ifnecessary,certicates
The SITRANS LVL100 consists of the components:
• Housing with electronics
• Processttingwithtuningfork
Fig. 1: SITRANS LVL100
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
SITRANS LVL100 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atuning
fork of only 38 mm length, SITRANS LVL100 can be also mounted
e.g. in pipelines from DN 25. The small tuning fork allows use in
vessels, tanks and pipes. Thanks to its simple and robust measuring
system,SITRANSLVL100isvirtuallyunaectedbythechemicaland
physical properties of the liquid.
Scope of delivery
Constituent parts
Type plate
Application area

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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 LVL100 continuously monitors
via frequency evaluation the following criteria:
• 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
condition).
Thetuningforkispiezoelectricallyenergisedandvibratesatitsme-
chanicalresonancefrequencyofapprox.1100Hz.Whenthetuning
fork is submerged in the product, the frequency changes. This change
is detected by the integrated electronics module and converted into a
switching command.
SITRANS LVL100 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
The switching status of SITRANS LVL100 can be checked with
closedhousing(signallamp).Productswithadensity>0.7g/cm³
(0.025lbs/in³)canbedetected.
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 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 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.
Functional principle
Voltage supply
Packaging
Transport
Transport inspection

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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 %
Storage
Storage and transport
temperature

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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 LVL100 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.
Keep in mind that the swichting point can vary dependent on the
installation position.
Theswitchingpointreferstothemediumwater(1g/cm³/0.036lbs/
in³).Pleasekeepinmindthattheswitchingpointoftheinstrument
shiftswhenthemediumhasadensitydieringfromwater.
2
3
1
11 mm
(0.43")
34 mm
(1.34")
Fig. 2: Vertical mounting
1 Switching point in water
2 Switching point with lower density
3 Switching point with higher density
Suitability for the process
conditions
Switching point

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2
1
Fig. 3: Horizontal mounting
1 Switching point
2 Switching point (recommended mounting position, particularly for adhesive
products)
Usetherecommendedcables(seechapter"Connecting to power
supply") and tighten the cable gland.
You can give your SITRANS LVL100 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appliesmainlytooutdoormountingaswellasinstallationin
areaswherehighhumidityisexpected(e.g.throughcleaningpro-
cesses) or on cooled or heated vessels.
Fig. 4: Measures against moisture penetration
Do not hold SITRANS LVL100 on the tuning fork.
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.
Themax.permissiblepressureisspeciedinchapter"Technical
data" or on the type label of the sensor.
Moisture
Transport
Pressure/Vacuum

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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.
4.2 Mounting instructions
For threaded versions of SITRANS LVL100 in combination with a
mounting boss with O-ring in front and welding marking.
SITRANSLVL100withthreadsizes¾"and1"haveadenedthread
runout. This means that every SITRANS LVL100 is in the same posi-
tionafterbeingscrewedin.Removethereforethesuppliedatseal
fromthethreadofSITRANSLVL100.Thisatsealisnotrequired
whenusingaweldedsocketwithfront-ushseal.
Before welding, unscrew SITRANS LVL100 and remove the rubber
ring from the welded socket.
Theweldedsocketisprovidedwithamarking(notch).Forhorizontal
mounting, weld the socket with the notch facing upward or downward;
inpipelines(DN25toDN50)alignedwiththedirectionofow.
1
Fig. 5: 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.The position of the tuning fork is indicated
by a marking on the hexagon of SITRANS LVL100. 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 adhesive and viscous products, the surfaces of the tuning fork
should protrude into the vessel to avoid buildup.Therefore sockets for
angesandmountingsbossesshouldnotexceedacertainlength.
Handling
Welded socket
Adhesive products

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30 mm
(1.18")
Fig. 6: Adhesive products
IfSITRANSLVL100ismountedinthellingstream,unwantedfalse
measurement signals can be generated. For this reason, mount
SITRANS LVL100 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 LVL100 generates as little
resistanceaspossibletoproductow,mountthesensorsothatthe
surfaces are parallel to the product movement.
Inowingmedium
Flows

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5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
• Connect only in the complete absence of line voltage
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. Depending on the plug connec-
tion, you have to select the outer diameter of the cable respectively so
thatthesealeectofthecableglandisensured.
• Valve plug ISO 4400, ø 4.5 … 7 mm
• Valve plug ISO 4400 with IDC crimping technology, ø 5.5 … 8 mm
Use cable with a round wire cross section and tighten the cable gland.
When mounting outdoors, on cooled vessels or in moist areas in
which cleaning is made with steam or high pressure, the sealing of
the cable gland is very important.
5.2 Wiring plan
2 31
Fig. 7: Overview of the connection versions
1 M12 x 1 plug connection
2 Valve plug ISO 4400
3 Valve plug ISO 4400 with IDC method of termination
Note safety instructions
Connection cable
Cable glands
Housing overview

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M12 x 1 plug connection
This plug connection requires a prefabricated cable with plug. De-
pendingontheversion,protectionIP66/IP67orIP68(0.2bar).
Valve plug ISO 4400
For this plug version, standard cable with round wire cross-section
can be used. Cable diameter 4.5 … 7 mm, protection IP 65.
1
4
5
6
7
8
9
10
2 3
Fig. 8: Connection, valve plug ISO 4400
1 Pressure screw
2 Pressure disc
3 Seal ring
4 Fixing screw
5 Seal washer
6 Plug housing
7 Plug insert
8 Proleseal
9 Control lamp
10 SITRANS LVL100
Valve plug ISO 4400 with IDC method of termination
For this plug version you can use standard cable with round wire
cross-section. The inner conductors do not have to be stripped. The
plug connects the conductors automatically when screwing in. Cable
diameter 5.5 … 8 mm, protection IP 67.
Plug versions

16 SITRANS LVL100 - Operating Instructions
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1 2 3 4
5
Fig. 9: Connection, valve plug ISO 4400 with IDC crimping technology
1 Compression nut
2 Cable
3 Seal ring
4 Terminal insert
5 Plug housing
For connection to binary inputs of a PLC.
Max. Min.
3
21
3
21
-+
R
L
R
L
-+
PA PA
Fig. 10: Wiring plan, Transistor output with valve plug ISO 4400
PA Potential equalisation
RLLoad resistance (contactor, relay, etc.)
Transistor output

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R
L
R
L
1
4
2
3
1
4
2
3
-
Max. Min.
-
++
Fig. 11: Wiring plan (housing), transistor output with M12 x 1 plug connection
1 Brown
2 White
3 Blue
4 Black
RLLoad resistance (contactor, relay, etc.)

18 SITRANS LVL100 - Operating Instructions
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6 Setup
6.1 Indication of the switching status
The switching status of the electronics can be checked via the signal
lamps(LEDs)integratedintheupperpartofthehousing.
The signal lamps have the following meaning:
• Green lights - voltage supply connected
• Yellow lights - vibrating element covered
• Redlightsbriey-functiontestduringinstrumentstart(for0.5s)
• Redlights-shortcircuitoroverloadintheloadcircuit(sensor
output high-impedance)
• Redashes-Erroronthevibratingelementortheelectronics
(sensoroutputhighimpedance)
6.2 Simulation
The SITRANS LVL100 has an integrated function for simulation of the
output signal which can be activated magnetically. Please proceed as
follows:
→ Holdthetestmagnet(accessory)againstthecirclesymbolwith
the label "TEST" on the instrument housing
Fig. 12: Simulation of the output signal
The test magnet changes the current switching condition of the instru-
ment.You can check the change on the signal lamp. Please note that
all connected device are activated during the simulation.
If SITRANS LVL100 does not switch over after several tests with the
test magnet, you have to check the plug connection and the con-
nection cable and try it again. If there is no switching function, the
electronics will be defective. In this case you have to exchange the
electronics or return the instrument to our repair department.

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Caution:
It is absolutely necessary that you remove the test magnet from the
instrument housing after the simulation.
6.3 Function chart
The following chart provides an overview of the switching conditions
depending on the set mode and the level.
Level Switching sta-
tus
Control lamp
Yellow - cov-
erage
Control lamp
Green - voltage
indication
Control lamp
Red - fault sig-
nal
Mode max. closed
Mode max. open
Mode min. closed
Mode min. open
Fault any open any

20 SITRANS LVL100 - Operating Instructions
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7 Maintenanceandfaultrectication
7.1 Maintenance
If the instrument is used properly, no special maintenance is required
in normal operation.
7.2 Rectify faults
The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
SITRANSLVL100oersmaximumreliability.Nevertheless,faultscan
occur during operation. These may be caused by the following, e.g.:
• Sensor
• Process
• Voltage supply
• Signal processing
Therstmeasuretobetakenistochecktheoutputsignal.Inmany
cases,thecausescanbedeterminedthiswayandthefaultsrectied.
Error Cause Rectication
Green signal
lampo
Voltage supply in-
terrupted.
Check the voltage supply and the ca-
ble connection
Electronics de-
fective
Exchange the instrument or send it in
for repair
Red signal lamp
lights(switching
output high-im-
pedance)
Error with the
electrical con-
nection
Connect the instrument according to
the wiring plan
Shortcircuit or
overload
Check the electrical connection
Red signal lamp
ashes(switching
output high-im-
pedance)
Virbating fre-
quency out of
specication
Check the vibrating element on build-
up and remove it
Buildup on the vi-
brating element
Check the vibrating element and
the sensor if there is buildup and re-
move it
Vibrating element
damaged
Check if the vibrating element is dam-
age or extremely corroded
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
7.3 Instrument repair
If it is necessary to repair the instrument, please contact Siemens
MilltronicsProcessInstrumentsInc.Youndthelocationsonour
homepage "www.siemens.com/processautomation".
Reaction when malfunc-
tions occur
Failure reasons
Faultrectication
Checking the switching
signal
Reaction after fault recti-
cation