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    3. Pepperl+Fuchs Vibracon LVL-A7-LVL-A7-BG4B-E5PU-CG..EMS-275573-100030

    Pepperl+Fuchs Vibracon LVL-A7-LVL-A7-BG4B-E5PU-CG..EMS-275573-100030

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    249 €

    Pepperl+Fuchs Vibracon LVL-A7-LVL-A7-BG4B-E5PU-CG..EMS-275573-100030      Vibration Limit Switch LVL-A7 Limit switch for liquids Onsite function check possible thanks to LED indication Large selection of process connections for hassle-free installation in existing systems Easy to install even at points difficult to access due to compact design Rugged stain

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    Pepperl+Fuchs Vibracon LVL-A7-LVL-A7-BG4B-E5PU-CG..EMS-275573-100030 

     

     

    Vibration Limit Switch LVL-A7

    • Limit switch for liquids
    • Onsite function check possible thanks to LED indication
    • Large selection of process connections for hassle-free installation in existing systems
    • Easy to install even at points difficult to access due to compact design
    • Rugged stainless steel housing
    • Cost-saving plug connections
    • Approval as overfill protection and leak detection system acc. to WHG
    General specifications
    Measuring method The 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 type compact device
    device with short tube
    Operating mode MAX = 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)
    Series Vibracon LVL-A7
    Supply
    Rated voltage - DC-PNP: 10 ... 35 V DC, 3-wire
    - AC/DC: 20 ... 253 V AC/DC, 2-wire
    Current consumption - DC-PNP: < 15 mA
    - AC/DC: < 3.8 mA
    Power consumption - DC-PNP: < 975 mW
    - AC/DC: < 850 mW
    Input
    Measured variable density
    Measurement range min. 0.7 g/cm3, optional> 0.5 g/cm3
    Output
    Output type switch output
    Switching current max. 250 mA
    Directive conformity
    Electromagnetic compatibility  
      Directive 2014/30/EU EN 61326-1:2006 , EN 61326-2-3:2006
    Low voltage  
      Directive 2014/35/EU EN 61010-1:2010
    Conformity
    Electromagnetic compatibility NE 21
    Degree of protection IEC 60529
    Shock resistance EN 60068-2-27
    Vibration resistance EN 60068-2-64
    Climate class DIN EN 60068-2-38/IEC 68-2-38
    Measurement accuracy
    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 frequency approx. 1100 Hz in air
    Switching point 13 mm ± 1 mm
    Non-repeatability ± 1 mm acc. to DIN 61298-2
    Hysteresis max. 3 mm
    Influence of ambient temperature negligible
    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
    - other switching times on request
    Operating conditions
    Installation conditions  
      Installation position see section mounting position
    Ambient conditions  
      Ambient temperature -40 ... 70 °C (-40 ... 158 °F)
      Storage temperature -40 ... 85 °C (-40 ... 185 °F)
      Shock resistance a = 300 m/s2 = 30 g, 3 planes x 2 directions x 3 shocks x 18 ms, as per test Ea
      Vibration resistance a(RMS) = 50 m/s2, ASD = 1.25 (m/s2)2/Hz, f = 5 to 2000 Hz, t = 3 x 2 h
    Process conditions  
      Process temperature -40 ... +100 °C (-40 ... +212 °F)
    -40 ... +150 °C (-40 ... +302 °F)
      Process pressure (static pressure) -1 ... +40 bar (-14.5 ... +580 psi)
      State of aggregation liquid
      Density min. 0.7 g/cm3, optional> 0.5 g/cm3
      Viscosity 1 ... 10000 mPa/s, dynamic viscosity
      Solid contents < ∅5 mm
    Mechanical specifications
    Degree of protection - IP65/67, NEMA 4X enclosure (plug M12)
    - IP65, NEMA 4X enclosure (valve plug)
    - IP65/68, NEMA 4X/6P enclosure (cable)
    Connection - cable 5 m
    - valve plug NPT1/2
    - valve plug QUICKON
    - valve plug M16
    - plug M12
    Material see technical information (TI)
    Surface quality Ra < 3.2 µm
    Mass see technical information (TI)
    Dimensions see technical information (TI)
    Process connection - thread ISO 228 G1/2, G3/4, G1
    - thread EN 10226 R1/2, R3/4, R1
    - thread ASME MNPT1/2, MNPT3/4, MNPT1
    Indication and operation
    Display elements The LED display is on the connection side.
    - green LED: indication of ready to operate
    - red LED: fault indication
    - yellow LED: operating mode indication
    Function test function test with test magnet (optional accessory)
    Certificates and approvals
    Overspill protection Z-65.11-554 (overspill protection acc. to WHG)
    Z-65.40-555 (leak detection system acc. to WHG)
    If you need the approvals also in paper form, select the option WH in the type code.
    General information
    Supplementary documentation technical information (TI)
    manual (BA)
    approval (ZE)
    Supplementary information Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com.
    Accessories
    Designation see technical information (TI)

     

    Classifications

    System Classcode
    ECLASS 11.0 27200518
    ECLASS 10.0.1 27200518
    ECLASS 9.0 27200589
    ECLASS 8.0 27200589
    ECLASS 5.1 27200589
    ETIM 8.0 EC001447
    ETIM 7.0 EC001447
    ETIM 6.0 EC001447
    ETIM 5.0 EC001447