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  6. LVL-A7-BG1A-E5V1-CG-EMS

LVL-A7-BG1A-E5V1-CG-EMS Vibration Limit Switch

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  • Limit switch for liquids
  • Process connection G1/2
  • Suitable for process temperatures up to 150 °C (302 °F)
  • Rugged stainless steel housing
  • Onsite function check possible thanks to LED indication
  • External function test with test magnet

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Product photo: Vibration Limit Switch LVL-A7-BG1A-E5V1-CG-EMS
Connection Assignment: Vibration Limit Switch LVL-A7-BG1A-E5V1-CG-EMS
Connection Assignment: Vibration Limit Switch LVL-A7-BG1A-E5V1-CG-EMS
Product photo: Vibration Limit Switch LVL-A7-BG1A-E5V1-CG-EMS
Connection Assignment: Vibration Limit Switch LVL-A7-BG1A-E5V1-CG-EMS
Connection Assignment: Vibration Limit Switch LVL-A7-BG1A-E5V1-CG-EMS
Product Compliance: Europe – CE
Product Compliance: EU - Ü
Nota

Todos los documentos relacionados con los productos, como certificados, declaraciones de conformidad, etc., que se emitieron antes de la conversión con el nombre de Pepperl+Fuchs GmbH o Pepperl+Fuchs AG también se aplican a Pepperl+Fuchs SE.

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Hoja de datosFunciónClasificaciónProduct DocumentationDesign / SimulationHomologaciones

Datos técnicos de LVL-A7-BG1A-E5V1-CG-EMS

Measuring methodThe tuning fork is brought to its resonance frequency by means of a piezoelectric drive. If the tuning fork is covered by liquid, this frequency changes. The electronics monitor the resonance frequency and indicate whether the tuning fork is freely vibrating or is covered by liquid.
Construction typecompact device
Operating modeMAX = maximum safety:
The device keeps the electronic switch closed as long as the liquid level is below the fork.
example application: overspill protection
MIN = minimum safety:
The device keeps the electronic switch closed as long as the fork is immersed in liquid.
example application: dry running protection of pumps
The electronic switch opens if the limit is reached, if a fault occurs or in the event of a power fails (quiescent current principle)
SeriesLVL-A*
ConnectionThis device may be used with any sequential circuit, as long as the circuit can support the electrical circuit values of the switching elements.
Rated voltageUr10 ... 35 V DC
Fusingexternal 500 mA slow
Current consumption< 15 mA
Power consumption975 mW
Residual ripple5 V ss at 0 ... 400 Hz
Measured variabledensity
Measuring rangemin. 0.7 g/cm3
Output typeswitching output
Switching currentmax. 250 mA
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2006 , EN 61326-2-3:2006
Directive 2004/108/ECEN 61326-1:2006 , EN 61326-2-3:2006
Electromagnetic compatibilityNE 21
Degree of protectionIEC 60529
Shock resistanceEN 60068-2-27
Vibration resistanceEN 60068-2-64
Climate classDIN EN 60068-2-38/IEC 68-2-38
Reference operating conditions- ambient temperature: 25 °C (+77 °F)
- process pressure: 1 bar (14.5 psi)
- fluid: water (density: approx. 1 g/cm3, viscosity: 1 mm2/s)
- medium temperature: 25 °C (+77 °F)
- density setting: > 0.7 g/cm3
- switching time delay: standard (0,5 s, 1 s)
Measured value resolution< 0.5 mm
Measuring frequencyapprox. 1100 Hz in air
Switching point13 mm ± 1 mm
Non-repeatability± 1 mm acc. to DIN 61298-2
Hysteresismax. 3 mm
Influence of ambient temperaturenegligible
Influence of medium temperature-25 µm/°C
Influence of medium pressure-20 µm/bar
Switching time- 0.5 s when tuning fork is covered
- 1.0 s when tuning fork is uncovered
Switch-on delaymax. 3 s
Installation conditions
Installation positionsee technical information (TI)
Ambient conditions
Ambient temperature-40 ... 70 °C (-40 ... 158 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Shock resistancea = 300 m/s2 = 30 g, 3 planes x 2 directions x 3 shocks x 18 ms, as per test Ea
Vibration resistancea(RMS) = 50 m/s2, ASD = 1.25 (m/s2)2/Hz, f = 5 to 2000 Hz, t = 3 x 2 h
Process conditions
Medium temperature-40 ... 150 °C (-40 ... 302 °F)
Process pressure (static pressure)-1 ... +40 bar (-14.5 ... +580 psi)
State of aggregationliquid
Densitymin. 0.7 g/cm3
Viscosity1 ... 10000 mPa/s, dynamic viscosity
Solid contents< ∅5 mm
Degree of protectionIP65 / IP67 , NEMA 4X
ConnectionM12 connector, 4-pin
Materialprocess connection and short tube: stainless steel 316L (1.4401/1.4435)
tuning fork: stainless steel 316L
housing cover and connector: PPSU
Surface qualityRa < 3.2 µm
Massapprox. 140 g
Process connectionthread G1/2 to ISO 228
Display elementsThe LED display is on the connection side.
- green LED: indication of ready to operate
- red LED: fault indication
- yellow LED: operating mode indication
Function testfunction test with test magnet (optional accessory)
CSA approvalcCSAus Listed, General Purpose
Overspill protectionsee approval (ZE)
Supplementary documentationtechnical information (TI)
manual (BA)
approval (ZE)
Supplementary informationStatement 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)
Notas generales

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