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Vibration Limit Switch LVL-M2C

  • Limit switch for liquids
  • Corrosion resistant coating (HALAR): ideally suited for the process
  • Large selection of process connections: universal use
  • Wide variety of electronic modules (e. g., relay, thyristor signal output): the right connection for every process control system
  • No calibration: quick and low-cost start up
  • No mechanically moving parts: maintenance-free, no wear, long operating life
  • Monitoring of the vibrating fork for damage: guaranteed function
  • PROFIBUS PA protocol: commissioning and maintenance quick and easy
  • Up to SIL 2 acc. to IEC/EN 61508

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

A teljes adatlap letöltése PDF formátumban:

Adatlap kivonata: Műszaki adatok  LVL-M2C

General specifications
Function principlelimit detection
Maximum or minimum detection in tanks or pipelines containing all types of liquids including use in explosion hazardous areas. Particularly suited to very aggressive liquids thanks to high degree of corrosion protection.
Measuring methodThe forks of the sensors vibrate at their intrinsic frequency. This frequency is reduced when covered with liquid.
The change in frequency then activates the limit switch.
Construction typedevice with extension tube, coated with ECTFE
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
Rated voltageelectronic insert FEL50A (PA): 9 ... 32 V DC
electronic insert FEL51 (AC): 253 V AC, 50/60 Hz
electronic insert FEL52 (E5): 10 ... 55 V DC
electronic insert FEL54 (WA): 19 ... 253 V AC, 50/60 Hz or 19 ... 55 V DC
electronic insert FEL55 (SI): 11 ... 36 V DC, PLC
electronic insert FEL56 (N1), FEL58 (N2): isolating amplifier acc. to EN 60947-5-6 (NAMUR)
Current consumptionelectronic insert FEL52 (E5): max. 15 mA
Power consumptionelectronic insert FEL52 (E5): max. 0.83 W
electronic insert FEL54 (WA): max. 1.3 W
Electrical specifications
Surge protectionelectronic insert FEL51 (AC), electronic insert FEL52 (E5), electronic insert FEL54 (WA), electronic insert FEL55 (SI): overvoltage category III
Switching pointsee section switch point
Measured variablelimit level (limit value)
Measurement rangedepends on mounting point and pipe extension up to 3000 mm , larger sizes on request
Switching delaywhen fork is covered: approx. 0.5 s, when fork is exposed: approx. 1.0 s (other switching times on request)
additionally configurable for PROFIBUS PA (electronic insert FEL50A (PA)): 0.5 ... 60 s
Switch behaviourswitch-over for minimum/maximum residual current safety on electronic insert
MAX = maximum safety:
The output switches to the power fail response when the fork is covered.
for use with overspill protection for example
MIN = minimum safety:
The output switches to the power fail response when the fork is exposed.
for use with dry running protection for example
When switching on the power supply the output assumes the alarm signal. After max. 2 s it assumes the correct switching mode.
Directive conformity
Electromagnetic compatibility
Directive 89/336/EECEN 61326
If the fork tines are joined together on account of build-up, the useful signal is attenuated to such an extent that the original EMC values can no longer be completely observed (EN 61000-4-3 electromagnetic fields,
EN 61000-4-6 HF coupling).
Low voltage
Directive 73/23/EECEN 61010-1
Electromagnetic compatibilityNE 21
Degree of protectionIEC 60529
Vibration resistanceEN 60068-2-6
Climate classDIN EN 60068-2-38/IEC 68-2-38
Measurement accuracy
Reference operating conditionsambient temperature: 23 °C (73.4 °F), medium temperature: 23 °C (73.4 °F),
product density: 1 g/cm3 (water), viscosity: 1 mm2/s, medium pressure pe: 0 bar,
sensor mounting: vertical from above, density switch: to > 0.7 g/cm3
Maximum measured errormax. ± 1 mm, specified by mounting position
Non-repeatability0.1 mm
Hysteresisapprox. 2 mm
Influence of medium densitymax. +4.8 ... -3.5 mm (0.5 ... 1.5 g/cm3)
Influence of medium temperaturemax. 1.4 ... -2.8 mm (-40 ... 120 °C (-40 ... 248 °F))
Influence of medium pressuremax. 0 ... -2 mm (0 ... 40 bar)
Operating conditions
Installation conditions
Installation positionwith short pipe (up to 500 mm (19.7 inch)) any position, with long pipe vertical
Process conditions
Medium temperature-50 ... 150 °C (-58 ... 302 °F) , exceptions see process connections
Medium pressurepe = -1 ... 40 bar (-14.5 ... 580.2 psi) over the entire temperature range , exceptions see process connections
Test pressuremax. 100 bar (1.5 times the medium pressure pe), no function during test pressure, burst pressure of diaphragm 200 bar
Pressure surgemax. 20 bar/s
Thermal shock resistancemax. 120 °C/s
State of aggregationliquid
Densitymin. 0.5 g/cm3 , other density settings on request
Viscositymax. 10000 mm2/s
Solid contents< ∅5 mm
Ambient conditions
Ambient temperature-50 ... 70 °C (-58 ... 158 °F) , function with reduced data values
see section ambient temperature
Storage temperature-50 ... 80 °C (-58 ... 176 °F)
Vibration resistance10 ... 50 Hz, 0.15 mm, 100 cycles
Mechanical specifications
Degree of protectionpolyester, steel, and aluminum housing: IP66/IP67
Connectionelectronic inserts: cross section max. 2.5 mm2, lace in end splice in acc. with DIN 46228
ground lead in housing: cross section max. 2.5 mm2
external equipotential bonding: cross section 4 mm2
Materialwetted parts:
- process connection and extension pipe: 1.4435/316L with ECTFE coating
- vibration fork: 1.4435/316L with ECTFE coating
- polyester housing: PBT-FR with PBT-FR cover or with PA12 cover with sight glass, cover seal: EPDM
- stainless steel housing: 1.4301/304, cover seal: silicone
- aluminum housing: EN-AC-AlSi10Mg, plastic-coated, cover seal: EPDM
cable gland: polyamide or brass, nickel-plated
temperature spacer: 1.4435/316L
flameproof bushing: 1.4435/316L
Surface qualityRa < 3.2 µm
Mass800 g , basic weight: compact version (length type II), electronic insert, plastic housing, without flange, additional weight is dependent on extension tube, housing and process connection
process connections:
- A3H 1000 g, A5H 1500 g, A6H 2400 g, A6I 3200 g, A8H 4900 g
- H35 1400 g, H65 2400 g, H71 1600 g, H75 3200 g, H95 5900 g, HA3 5600 g
- J1H 1700 g
extension tube, temperature spacer, flameproof bushing:
- BK* 900 g/m
- CK* 2300 g/100 in
- DKA 100 g, DKB 700 g, DKC 800 g
Dimensionshousing: diameter max. 85 mm, height max. 173 mm
temperature separator, flameproof bushing: additional length L 140 mm
process connection: length L min. 115 mm
extension: any length L from 148 ... 3000 mm, larger sizes on request
extension: length type II, for vertical installation from above same switching point as Vibracon LVL2
vibration fork: width 20.6 mm, fork width 6.5 mm, length 25 mm
Process connectionflanges to EN 1092-1 from DN25, to ANSI B 16.5 from 1 inch, to JIS B 2238 (RF) from DN50
For further information see type code.
Data for application in connection with hazardous areas
EU-type examination certificatesee instruction manuals (SI)
International approvals
FM approvalsee control drawings (ZD)
CSA approvalsee control drawings (ZD)
IECEx approvalsee instruction manuals (SI)
Indication and operation
Display elementselectronic inserts:
- electronic inserts FEL50 A (PA), FEL58 (N2): green LED, yellow LED
- electronic inserts FEL51 (AC), FEL52 (E5), FEL54 (WA), FEL55 (SI), FEL56 (N1): green LED, red LED
Control elementselectronic insert FEL50A (PA): 8 switches for device address setting
electronic inserts FEL51 (AC), FEL52 (E5), FEL54 (WA), FEL55 (SI), FEL56 (N1): two switches for fail-safe mode and density change
electronic insert FEL58 (N2): two switches for fail-safe mode and density change and one test button interrupts lead
Certificates and approvals
Overspill protectionsee approval (ZE)
General information
Supplementary documentationtechnical information (TI)
manuals, brief instructions (BA, KA)
instruction manuals (SI)
control drawings (ZD)
Supplementary informationEC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com.
Designationsee technical information (TI)


ECLASS 13.027200518
ECLASS 12.027200518
ECLASS 11.027200518
ECLASS 10.0.127200518
ECLASS 9.027200589
ECLASS 8.027200589
ECLASS 5.127200589
ETIM 9.0EC001447
ETIM 8.0EC001447
ETIM 7.0EC001447
ETIM 6.0EC001447
ETIM 5.0EC001447
UNSPSC 12.141111950

Details: LVL-M2C


The device is a limit switch for use in all liquids

  • for temperature from -50 °C to +120 °C

  • for pressures up to 40 bar

  • for viscosities up to 10000 mm 2/s

  • for density up to 0.5 g/cm 3 (other settings available on request)

The function is not affected by flow, turbulence, bubbles, foam, vibration, bulk solids content or build-up, the device is thus the ideal replacement for float switches.

The device is available with extension tube up to 3 m (larger sizes on request).

The coating of all device wetted parts (process connections, extension pipe and vibration fork) is made of synthetic material to ensure it can be used for highly aggressive liquids.

Devices with protection Ex ia and Ex d are available for use in explosion hazardous areas.

Product Documentation: LVL-M2C

Product informationNyelvFájltípusFájlméret
TI0347O, Technical information LVL-M2CENGPDF813 KB
Brief Instructions
KA162O, brief instructions LVL-M2C / KA162O, Kurzanleitung LVL-M2CALLPDF1409 KB
Safety and Security Documentation
SI00063O, Instruction manual LVL-M** NAMURENGPDF460 KB
SI00064O, Instruction manual LVL-M** NAMURENGPDF404 KB
SI00113O, Instruction manual LVL-M2C NAMURENGPDF386 KB
SI00114O, Instruction manual LVL-M2C NAMURENGPDF342 KB
SI00031O, Instruction manual LVL-M**ENGPDF376 KB
SI00182O, Instruction manual LVL-MXXENGPDF983 KB
SI158O, Instruction manual LVL-M2C PROFIBUS PA / SI158O, Betriebsanleitung LVL-M2C PROFIBUS PAALLPDF435 KB
BA141O, Manual Electronic insert FEL50 A (PA)ENGPDF680 KB

Approvals: LVL-M2C

CertificatesTanúsítvány sz.NyelvFájltípusFájlméret
Canada CSACoC 212978ALLPDF251 KB
DEKRA Ex ib IECEx Certificate of Conformity Ex iaIECEx DEK 16.0077XALLLINK---
DEKRA IECEx Certificate of Conformity Ex dIECEx DEK 17.0006ALLLINK---
Europe DIBT WHG Overspill Protection (mechanical)Z-65.11-306ALLPDF488 KB
Europe KEMA ATEX Category 1 GKEMA 01 ATEX 1147XALLPDF520 KB
Europe KEMA ATEX Category 1/2 D ATEX Category 1/2 GKEMA 01 ATEX 1089ALLPDF2448 KB
Europe KEMA ATEX Category 1/2 GKEMA 01 ATEX 1148XALLPDF507 KB
Europe Pepperl+Fuchs ATEX Category 3PF18CERT4471ALLPDF294 KB
Pepperl+Fuchs Declaration of Conformity Functional SafetyP+F SIL DoC - LVL-M FEL56ALLPDF43 KB
Pepperl+Fuchs Declaration of Conformity Functional SafetyP+F SIL DoC - LVL-M FEL51ALLPDF48 KB
Pepperl+Fuchs Declaration of Conformity Functional SafetyP+F SIL DoC - LVL-M FEL55ALLPDF43 KB
Pepperl+Fuchs Declaration of Conformity Functional SafetyP+F SIL DoC - LVL-M FEL54ALLPDF50 KB
Pepperl+Fuchs Declaration of Conformity Functional SafetyP+F SIL DoC - LVL-M FEL52ALLPDF44 KB
Pepperl+Fuchs Declaration of Conformity Functional SafetyP+F SIL DoC - LVL-M FEL58ALLPDF46 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-2198BALLPDF234 KB
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-3917ALLPDF244 KB
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-3822AALLPDF240 KB
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-2215DALLPDF269 KB
Contamination Declaration
Contamination declaration / Kontaminationserklärung   ALLPDF137 KB

Software: LVL-M2C

Device Description Files/DriversMegjelenési információFájltípusFájlméret

Kapcsolódó termékek: LVL-M2C

Universal DTM host platform, For all DTMs of Pepperl+Fuchs, Approved FDT/DTM technology, Free of charge, Download from Pepperl+Fuchs websitepa
Device DTM, For level devices, Frame application, like e. g. PACTware, must be installed separatelypa
Funkcionális biztonság központ a Pepperl+Fuchs-nál

Több száz SIL/PL értékeléssel ellátott termék, ingyenes eszközök és prospektusok egy helyen: a „Funkcionális biztonság központ” a legjobb kiindulópont biztonsági funkciók kivitelezéséhez.