LVL-M3-B Vibration Limit Switch with Short Tube

Teknik Veriler

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

Directive 2014/30/EU

EN 61326

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/cm 3 or > 0,7 g/cm 3 (other on request)

Reference operating conditions

ambient temperature: 23 °C (73 °F) process temperature: 23 °C (73 °F) density: 1 g/cm 3 (water) medium viscosity: 1 mPa·s process pressure: ambietn pressure/unpressurized sensor installation: verticaly from above density selection switch: > 0.7 g/cm 3 switch direction of sensor: uncovered to covered

Maximum measured error

max. ± 1 mm

Hysteresis

typ. 2.5 mm