Pepperl+Fuchs LCL2
Capacitive limit switch
- 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
- Overview
- Comments
Supplementary information | EC-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 resistance | a(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 voltage | electrical 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 connection | thread R1-1/2 acc. to EN 10226, BSPT thread NPT1-1/2 to ANSI B 1.20.1 |
Degree of protection | IEC 60529:2001 |
Degree of protection | IP66, NEMA 4 |
Measuring method | A 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 drift | vertical 6 mm (0.24 inch) |
Switching time | approx. 0.8 s when covering and uncovering the sensor |
Equipment architecture | The 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 protection | overvoltage category III |
Signal on alarm | connection E5: < 100 andmicro;A connection WA: relay de-energized |
Dimensions | max. andempty;94 mm (3.7 inch), length 140 mm (5.5 inch) + L L = 500 ... 6000 mm (19.7 ... 236 inch) |
EU-Type Examination Certificate | see instruction manuals (SI) |
Measured variable | limit level (limit value) |
Construction type | device rope probe |
Measurement range | dielectric constant 1.6 |
Supplementary documentation | technical information (TI) manuals, brief instructions (BA, KA) instruction manuals (SI) |
Hysteresis | vertical 5 mm (0.2 inch) |
Operating mode | MAX = 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 accessories | LCL-Z10 cover with sight glass for F14 housing LCL-Z14 rope shortening set |
Connection | gland M20 thread G1/2, NPT1/2 |
Storage temperature | -40 ... 80 В°C (-40 ... 176 В°F) |
Current consumption | electrical connection E5: max. 30 mA, reverse-polarity-proof electrical connection WA: max. 130 mA |
Influence of medium temperature | depending on the filling material |
Output signal | connection 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 class | EN 60068, part 2-38 (test Z/AD) |
Reference operating conditions | vessel 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 resistance | EN 60068-2-64 |
Switch-on delay | correct switching after max. 2 s |
Material | F14 housing: polyester PBT-FR F34 housing F34: aluminum Probe: PPS GF40 probe rope: PE-HD probe rope seal: VMQ |
Shock resistance | device with F34 housing: 7 J |
Electromagnetic compatibility | NE 21 |
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