Pepperl+Fuchs LCL2
Capacitive limit switch

Pepperl+Fuchs LCL2
  • Limit switch for bulk solids
  • Device with rope probe
  • Rope probe can be shortened for optimum matching to the measuring point
  • Complete unit consisting of the probe and electronic insert
  • Integrated active build-up compensation: exact switch point, even with strong build-up
  • Mechanically rugged: no wearing parts, long operating life, maintenance-free
Item Number: LCL2
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Supplementary informationEC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com.
Vibration resistancea(RMS) = 50 m/s2, ASD = 1.25 (m/s2)2/Hz, f = 5 to 2000 Hz, t = 3 x 2 h
Ambient temperature-40 ... 80 В°C (-40 ... 176 В°F)
-40 ... 60 В°C (-40 ... 140 В°F) (Dust-Ex version)
Rated voltageelectrical connection E5: 10.8 ... 45 V DC, short-term pulse on 55 V DC
electrical connection WA: 20 ... 235 V AC, 50/60 Hz or 20 ... 55 V DC
Process connectionthread R1-1/2 acc. to EN 10226, BSPT
thread NPT1-1/2 to ANSI B 1.20.1
Degree of protectionIEC 60529:2001
Degree of protectionIP66, NEMA 4
Measuring methodA metal plate at the end of the probe, within the insulation, and the surroundings (e. g. the silo walls) combine to form the two electrodes of a capacitor. If the probe is covered or free of material, then the capacitance changes and the LCL switches.
Long-term driftvertical 6 mm (0.24 inch)
Switching timeapprox. 0.8 s when covering and uncovering the sensor
Equipment architectureThe measuring system consists of:
- the device
- a supply point
- the connected control systems, switching units, signalling systems (e. g. lamps, horns, PCS, PLC, etc.)
Surge protectionovervoltage category III
Signal on alarmconnection E5: < 100 andmicro;A
connection WA: relay de-energized
Dimensionsmax. andempty;94 mm (3.7 inch), length 140 mm (5.5 inch) + L
L = 500 ... 6000 mm (19.7 ... 236 inch)
EU-Type Examination Certificatesee instruction manuals (SI)
Measured variablelimit level (limit value)
Construction typedevice rope probe
Measurement rangedielectric constant 1.6
Supplementary documentationtechnical information (TI)
manuals, brief instructions (BA, KA)
instruction manuals (SI)
Hysteresisvertical 5 mm (0.2 inch)
Operating modeMAX = maximum safety:
The device switches if the probe is covered or if the supply voltage is disconnected in a safety-oriented manner (signal on alarm).
example application: overspill protection
MIN = minimum safety:
The device switches if the probe is uncovered or if the supply voltage is disconnected in a safetyoriented manner (signal on alarm).
example application: dry-running protection
Optional accessoriesLCL-Z10 cover with sight glass for F14 housing
LCL-Z14 rope shortening set
Connectiongland M20
thread G1/2, NPT1/2
Storage temperature-40 ... 80 В°C (-40 ... 176 В°F)
Current consumptionelectrical connection E5: max. 30 mA, reverse-polarity-proof
electrical connection WA: max. 130 mA
Influence of medium temperaturedepending on the filling material
Output signalconnection E5: switching PNP, Imax = 200 mA
- overload and short circuit protection
- residual voltage at transistor at Imax < 2.9 V
connection WA: contact change-over, potential-free
- Umax = 253 V
- Imax = 4 A (AC)
- Pmax = 1000 VA, cos andphi; = 1, Pmax = 500 VA, cos andphi; > 0.7
Climate classEN 60068, part 2-38 (test Z/AD)
Reference operating conditionsvessel type: plastic vessel, ambient temperature: 73 В°F (23 В°C, 296 K), medium temperature: 73 В°F (23 В°C, 296 K)
medium pressure pe: 0 bar, medium: dielectric constant = 2.6, conductivity: < 1 micro/s
sensitivity setting: C
Vibration resistanceEN 60068-2-64
Switch-on delaycorrect switching after max. 2 s
MaterialF14 housing: polyester PBT-FR
F34 housing F34: aluminum
Probe: PPS GF40
probe rope: PE-HD
probe rope seal: VMQ
Shock resistancedevice with F34 housing: 7 J
Electromagnetic compatibilityNE 21

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