LVL-M3-B Vibration Limit Switch with Short TubeVibracon

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Vibration limit switch for liquids
Device with short tube
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
Operation via push buttons and DIP switches on the electronic insert

Product photo: Vibration Limit Switch with Short Tube LVL-M3-B

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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Datos técnicos de LVL-M3-B

Function principle		point level detection, maximum or minimum detection for liquids
Measuring method		The change in vibration frequency causes the device to switch.
Construction type		device with short tube
Series		Vibracon LVL-M3
Housing		single compartment, aluminum, coated single compartment, plastic

Rated voltage	U_r	electronic insert FEL42: 10 V DC ... 55 V DC electronic insert FEL44: 19 V AC ... 253 V AC/19 V DC ... 55 V DC electronic insert FEL48: switch amplifier acc. to IEC 60947-5-6 (NAMUR)
Current consumption		electronic insert FEL42: ≤ 10 mA, without load
Power consumption		electronic insert FEL42: ≤ 0,5 W electronic insert FEL44: ≤ 25 VA/< 1.3 W electronic insert FEL48: acc. to IEC 60947-5-6 (NAMUR)

Switching point		see section switch point
Measured variable		limit level (limit value)
Measuring range		depends on installation location and the tube extension maxmum sensor length : 2 m

Output type		electronic insert FEL42: 3-wire PNP electronic insert FEL44: relay DPDT electronic insert FEL48: 2-wire NAMUR
Switch behaviour		switch-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

Electromagnetic compatibility

Directive 2014/30/EU

EN 61326

Low voltage

Directive 2014/35/EU

EN 61010-1

Electromagnetic compatibility		NE 21
Degree of protection		IEC 60529 , NEMA 250
Shock resistance		IEC 60068-2-27
Vibration resistance		EN 60068-2-64
Climate class		IEC 60068-2-38 test Z/AD
Corrosion resistance		acc. to ISA-71.04, severity level G3

Medium density

adjustment on the electronic insert > 0,5 g/cm³ or > 0,7 g/cm³ (other on request)

Reference operating conditions		ambient temperature: 23 °C (73 °F) process temperature: 23 °C (73 °F) density: 1 g/cm³ (water) medium viscosity: 1 mPa·s process pressure: ambietn pressure/unpressurized sensor installation: verticaly from above density selection switch: > 0.7 g/cm³ switch direction of sensor: uncovered to covered
Maximum measured error		max. ± 1 mm
Hysteresis		typ. 2.5 mm
Influence of medium density		see technical information (TI)
Influence of medium temperature		max. +1.4 ... -2.8 mm (-40 ... 150 °C (-40 ... 302 °F))
Influence of medium pressure		max. 0 ... 2.6 mm (-1 ... 40 bar)

Installation conditions

Installation position

any position

Process conditions

Medium temperature		-40 ... 150 °C (-40 ... 302 °F)
Medium pressure		p_e = -1 ... 40 bar (-14.5 ... 580.2 psi) over the entire temperature range , exceptions see process connections
Test pressure		PN = 40 bar (580 psi): test pressure = 1.5 x PN max. 60 bar (870 psi) dependent on the process connection selected
Thermal shock resistance		≤ 120 K/s
State of aggregation		liquid
Density		min. 0.5 g/cm³ , optional 0.4 g/cm³
Viscosity		max. 10000 mm²/s (max. 10000 cSt)

Ambient temperature		-40 ... 70 °C (-40 ... 158 °F) For further information see technical information (TI).
Storage temperature		-40 ... 80 °C (-40 ... 176 °F)
Altitude		≤ 2000 m above MSL

Degree of protection		plug M12 : IP66/67, NEMA type 4X Others : IP66/68, NEMA type 4X/6P
Connection		gland M20 thread M20 , G1/2 , NPT1/2 , NPT3/4 plug M12
Material		see technical information (TI)
Surface quality		R_a < 3.2 µm/126 µinch
Mass		basic weight: 0.65 kg the basic weight comprises: - sensor (compact) - electronic insert - housing: single compartment, plastic with cover - process connection: thread, G3/4 in addition to the basic weight: - housing: single compartment, aluminum, coated: 0.8 kg - pipe extension: 1000 mm: 0.9 kg, 100 inch: 2.3 kg - plastic protective cover: 0.2 kg For further information see technical information (TI).
Dimensions		housing: diameter max. 101 mm, heigth max. 118 mm compact version: length depends on process connection short tube version: length 99 ... 118 mm, depends on process connection tube extension: length 117 ... 2000 mm tuning fork: width 17.2 mm, fork width 10 mm, length 40 mm For further information see technical information (TI).
Process connection		cylindrical threads G3/4, G1 acc. to DIN ISO 228 G for installing in weld-in adapter cylindrical threads G3/4, G1 acc. to DIN ISO 228 G with flat seal conical threads NPT3/4, NPT1 acc. to ANSI B 1.20.3 conical threads R3/4, R1 acc. to EN 10226 flanges RF, RJF, FF from 1 inch acc. to ASME B16.5 flanges form A, B1, C, D, E from DN25 acc. to EN 1092-1 flanges RF from 10K 25A acc. to JIS B2220 Tri-Clamp from DN25 acc. to ISO 2852 For further information see technical information (TI).

EU-type examination certificate

see instruction manuals

CSA approval		see instruction manuals
IECEx approval		see instruction manuals

Display elements		without display
Control elements		switches on the electronic insert
Function test		via switches on the electronic insert

Overspill protection

see approval (ZE)

Supplementary documentation		technical information (TI) manuals, brief instructions (BA, KA) instruction manuals Special documentation (SD)
Supplementary information		Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.