Siemens SITRANS LVL100 User manual

Operating Instructions • 11/2019
Vibrating Switches
SITRANS LVL100
Contactless electronic switch

2SITRANS LVL100 - Operating Instructions
43192-EN-200131

3
SITRANS LVL100 - Operating Instructions
43192-EN-20013143192-EN-200131
Contents
1 About this document ............................................................................................................... 4
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety ......................................................................................................................... 5
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 Sicherheitskennzeichen am Gerät.................................................................................... 6
2.6 EU conformity................................................................................................................... 6
2.7 Installation und Betrieb in den USA und Kanada.............................................................. 6
3 Product description ................................................................................................................. 7
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 7
3.3 Adjustment ....................................................................................................................... 8
3.4 Supplementary cleaning procedures................................................................................ 8
3.5 Packaging, transport and storage..................................................................................... 9
4 Mounting................................................................................................................................. 10
4.1 General instructions ....................................................................................................... 10
4.2 Mounting instructions ..................................................................................................... 12
5 Connecting to power supply................................................................................................. 14
5.1 Preparing the connection ............................................................................................... 14
5.2 Wiring plan ..................................................................................................................... 15
6 Setup ....................................................................................................................................... 19
6.1 Indication of the switching status.................................................................................... 19
6.2 Simulation ...................................................................................................................... 19
6.3 Function table................................................................................................................. 20
7 Maintenanceandfaultrectication...................................................................................... 21
7.1 Maintenance .................................................................................................................. 21
7.2 Rectify faults................................................................................................................... 21
7.3 How to proceed if a repair is necessary.......................................................................... 22
8 Dismount................................................................................................................................. 23
8.1 Dismounting steps.......................................................................................................... 23
8.2 Disposal ......................................................................................................................... 23
9 Supplement ............................................................................................................................ 24
9.1 Technical data ................................................................................................................ 24
9.2 Dimensions .................................................................................................................... 28
9.3 Warenzeichen ................................................................................................................ 31
Editing status: 2019-11-21

4SITRANS LVL100 - Operating Instructions
43192-EN-200131
1 About this document
1.1 Function
This instruction provides all the information you need for mounting,
connection and setup as well as important instructions for mainte-
nance,faultrectication,theexchangeofpartsandthesafetyofthe
user. Please read this information 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 personnel.
Thecontentsofthismanualmustbemadeavailabletothequalied
personnel and implemented.
1.3 Symbols used
Information, note, tip: This symbol indicates helpful additional infor-
mation and tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions,
damage to devices or plants.
Caution: Non-observance of the information marked with this symbol
may result in personal injury.
Warning: Non-observance of the information marked with this symbol
may result in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol
results in serious or fatal personal injury.
Ex applications
ThissymbolindicatesspecialinstructionsforExapplications.
• List
The dot set in front indicates a list with no implied sequence.
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.

5
SITRANS LVL100 - Operating Instructions
43192-EN-200131
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
onlybytrained,qualied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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 this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives.The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument.When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
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.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.

6SITRANS LVL100 - Operating Instructions
43192-EN-200131
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed and their meaning read in this oper-
ating instructions manual.
2.5 Sicherheitskennzeichen am Gerät
Die auf dem Gerät angebrachten Sicherheitskennzeichen und -hin-
weise sind zu beachten.
2.6 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.
The EU conformity declaration can be found on our homepage.
2.7 Installation und Betrieb in den USA und
Kanada
Diese Hinweise sind ausschließlich für die USA und Kanada gültig.
DeshalbistderfolgendeTextnurinenglischerSpracheverfügbar.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.

7
SITRANS LVL100 - Operating Instructions
43192-EN-200131
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typelabel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 label
Application area

8SITRANS LVL100 - Operating Instructions
43192-EN-200131
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
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 voltage supply, the electron-
icstakesonadenedswitchingstatus,i.e.thecontactlesselectronic
switch opens (safe state).
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 when
the housing is closed (signal lamp). Products with a density > 0.7 g/
cm³ (0.025 lbs/in³) or ordered optionally with a density > 0.5 g/cm³
(0.018 lbs/in³) can be detected.
3.4 Supplementary cleaning procedures
3.4.1 Oil, grease and silicone-free
The SITRANS LVL100 is also available in the version "Oil, grease
and silicone-free".These instruments have passed through a special
cleaning procedure to remove oil, grease and paint-wetting impair-
ment substances (PWIS).
The cleaning is carried out on all wetted parts as well as on surfaces
accessible from outside.To keep the purity level, the instruments are
immediately packed in plastic foil after the cleaning process.The
purity level remains as long as the instrument is kept in the closed
original packaging.
Caution:
TheSITRANSLVL100inthisversionmustonlybeusedinoxygen
applications.
Functional principle
Voltage supply

9
SITRANS LVL100 - Operating Instructions
43192-EN-200131
3.5 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 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 %
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature

10 SITRANS LVL100 - Operating Instructions
43192-EN-200131
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.
Theinstrumentissuitableforstandardandextendedambientcondi-
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1.
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
Suitability for the ambient
conditions
Switching point

11
SITRANS LVL100 - Operating Instructions
43192-EN-200131
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 gland. 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 ingress
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

12 SITRANS LVL100 - Operating Instructions
43192-EN-200131
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.
This means that every SITRANS LVL100 is in the same position 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

13
SITRANS LVL100 - Operating Instructions
43192-EN-200131
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
Productow

14 SITRANS LVL100 - Operating Instructions
43192-EN-200131
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,
qualiedpersonnelauthorisedbytheplantoperator.
• Alwaysswitchopowersupply,beforeconnectingordisconnect-
ing the instrument.
• Ifovervoltagesurgesareexpected,overvoltagearrestersshould
be installed.
Caution:
Install switch or circuit breaker easy to access as a disconnecting
device for the instrument.The disconnecting device must be marked
for the instrument (IEC/EN 61010).
The SITRANS LVL100 and the connected load must be protected
through a respectively dimensioned fuse.
The instrument is connected with standard two-wire cable without
screening.Ifelectromagneticinterferenceisexpectedwhichisabove
the test values of EN 61326 for industrial areas, screened cable
should be used.
Caution:
The connection cable used must be suitable for the permissible ambi-
enttemperature.Youcanndthepermissibleambienttemperaturein
the "Technical data".
Make sure that the cable used has the required temperature resist-
anceandresafetyformax.occurringambienttemperature
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.
Note safety instructions
Connection cable
Cable glands

15
SITRANS LVL100 - Operating Instructions
43192-EN-200131
5.2 Wiring plan
1 2
Fig. 7: Overview of the connection versions
1 Valve plug ISO 4400
2 Valve plug ISO 4400 with IDC method of termination
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 IP65.
Housing overview
Plug versions

16 SITRANS LVL100 - Operating Instructions
43192-EN-200131
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 IP67.

17
SITRANS LVL100 - Operating Instructions
43192-EN-200131
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
We recommend connecting SITRANS LVL100 in such a way that the
switching circuit is open when there is a level signal, line break or
failure (safe state).
Warning:
The instrument must not be operated without an intermediately
connected load, because the electronics would be destroyed if con-
nected directly to the mains. It is not suitable for connection to low
voltage PLC inputs.
Examplesfortypicalapplications:
• Loadresistanceat24VDC:88…1800Ω
• Rated power, relay 253 V AC: > 2.5 VA
• Rated power, relay 24 V AC: > 0.5 VA
For direct control of relays, contactors, magnet valves, warning lights,
horns etc.
Domestic current is temporarily lowered below 1 mA after switching
otheloadsothatcontactors,whoseholdingcurrentislowerthan
the constant domestic current of the electronics (3 mA), are reliably
switchedo.
Contactless electronic
switch

18 SITRANS LVL100 - Operating Instructions
43192-EN-200131
RL RL
3
21
3
21
N- L1+L1+ N-
Max. Min.
PE PE
Fig. 10: Wiring plan, contactless electronic switch with valve plug ISO 4400
PE Protective ground
RL Load resistance (contactor, relay, etc.)

19
SITRANS LVL100 - Operating Instructions
43192-EN-200131
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. 11: 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.

20 SITRANS LVL100 - Operating Instructions
43192-EN-200131
Caution:
It is absolutely necessary that you remove the test magnet from the
instrument housing after the simulation.
6.3 Function table
The following table 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
Max.modeofop-
eration
closed
Max.modeofop-
eration
open
Min. mode of op-
eration
closed
Min. mode of op-
eration
open
Fault any open any