Select Your Country
LVL-M3-A Vibration Limit Switch Compact VersionVibracon
Key Benefits at a Glance
- Vibration limit switch for liquids
- Compact device
- 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
Show more


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.
DE
- DE
- EN
Technical data of LVL-M3-A
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 | compact device | |
Series | Vibracon LVL-M3 | |
Housing | single compartment, aluminum, coated single compartment, plastic |
Rated voltage | Ur | 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 | |||||
| |||||
Low voltage | |||||
|
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 | |||||||||||||||||||||||
| |||||||||||||||||||||||
Process conditions | |||||||||||||||||||||||
|
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 | Ra < 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. |
Designation | see technical information (TI) |
Related News and Applications
Read more on news and applications related to this product.