Pepperl+Fuchs LKL-P*
Conductive Level Limit Switch
- Level limit switch for conductive liquids
- Detect up to five level limits with one probe
- Flexible instrumentation
- No moving parts in the tank
- No calibration: quick and low-cost start up
- Option between rod or rope version for optimum adaptation to the application
- Two-point control and additional maximum and minimum detection
- Approval as overfill protection and leak detection system acc. to WHG
Item Number:
LKL-P*
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- Overview
- Comments
Signal on alarm | output N1 (FEW58): output signal with damaged sensor < 1 mA | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Influence of ambient temperature | < 0.05 %/K | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Electromagnetic compatibility | NE 21 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Display elements | separate instrument version: dependent on the connected switching unit compact instrument version: output E5 (FEW52), WA (FEW54): - one red light emitting diode: fault message, switching status - one green light emitting diode: operation output N1 (FEW58): - one yellow light emitting diode: fault message, switching status - one green light emitting diode: operation | Current consumption | Output E5 (FEW52): I < 25 mA (without load) output WA (FEW54): 60 mA | Material | probes: - rods: rod 1.4404/316L, insulation: PP - ropes: rope 1.4571/316Ti, insulation FEP, weight 1.4435/316L housing: - output NA (separate instrument version): housing PPS, cover PBT - output E5/WA/N1 (compact instrument version): housing PBT, cover PBT, adapter PBT process connections: PPS | Contact loading | output WA (FEW54): 253 V AC/4 A, 30 V DC/4 A, 150 V/ 0.2 A | Supplementary documentation | technical information TI375O operating instructions KA203O (LKL-P* without electronic insert) operating instructions KA204O (LKL-P* with integrated electronic insert) safety information SI230O (TГњV 03 ATEX 2295) safety information SI226O ( II 3G EEx nA [L] IIC T6 or nC [L]) approval ZE043O overspill protection acc. to WHG (Z-65.13-378) approval ZE257O leak detection system (Z-65.40-379) | Equipment architecture | probe with integrated electronic insert (compact instrument version) probe without integrated electronic insert (separate instrument version) for one, two or multiple point detection respectively, see section measuring system | Degree of protection | IP66 | Load | Output E5 (FEW52): The load is switched via a transistor (PNP), cycled overload and short-circuit protection, continuous 200 mA (short-circuit proof), residual voltage at transistor at Imax 2.9 V Output WA (FEW54): Loads are switched via 2 potential-free change-over contacts. I~ max. 4 A, U~ max. 253 V P~ max. 1000 VA, cos andphi; = 1, P~ max. 700 VA, cos andphi; > 0.7 I- max. 4 A to 30 V, I- max. 0.2 A to 150 V When connecting a functional extra-low voltage circuit with double insulation in accordance with IEC 1010: The sum of the relay output and power supply voltages is max. 300 V. output N1 (FEW58): refer to datasheet of the connected switch amplifier acc. to IEC 60947-5-6 (NAMUR) | Fail-safe mode | Selecting the correct fail-safe mode ensures that the relay/the output always runs in quiescent current fail-safe. output E5 (FEW52): - maximum fail-safe: The output signal is < 1 mA if the switch point is exceeded (probe covered), a fault occurs or the power supply fails. - minimum fail-safe: The output signal is < 1 mA if the switch point is undershot (probe uncovered), a fault occurs or the power supply fails. Output WA (FEW54): - maximum fail-safe: The relay de-energises when the switch point is exceeded (probe covered), a fault occurs or the power supply fails. - minimum fail-safe: The relay de-energizes when the switch point is undershot (probe uncovered), a fault occurs or the power supply fails. output N1 (FEW58): - maximum fail-safe: The output voltage is 0 V if the switch point is exceeded (probe covered), a fault occurs or the power supply fails. - minimum fail-safe: The output voltage is 0 V if the switch point is undershot (probe uncovered), a fault occurs or the power supply fails. | Mass | separate instrument version: - rod, 1 m (3 ft) long, LKL-P1 with 2, 3 or 5 rods: 415 g, 530 g, 760 g - rope, 1 m (3 ft) long, LKL-P2 with 2, 3 or 5 ropes: 390 g, 470 g, 640 g compact instrument version: - rod, 1 m (3 ft) long, LKL-P1 with 2 or 3 rods (600 g/720 g) - rope, 1 m (3 ft) long, LKL-P2 with 2 or 3 ropes (710 g/800 g) | 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. | Control elements | - one DIL switch for min/max position - one DIL switch for 0 s or 2 s switching delay - two DIL switches for setting the measuring ranges 100 andOmega;, 1 kandOmega;, 10 kandOmega;, 100 kandOmega; | Process connection | - cylindrical thread G1ВЅA to DIN ISO 228/1 - conical thread 1ВЅ NPT to ANSI B 1.20.1 | Hysteresis | -10 % for the max probe, in reference to the switch point, andDelta;s function deactivated | Overspill protection | see approval (ZE) | Vibration resistance | EN 60068-2-64 | Measurement range | A total of four measuring ranges (100 andOmega;, 1 kandOmega;, 10 kandOmega;, 100 kandOmega;) can be set via two DIL switches (SENS). The setting on delivery is 100 kandOmega;. | Probe | rod probes: compact instrument version 2 or 3 rods, separate instrument version 2, 3 or 5 rods - diameter without insulation: Гevents corrosion of the probes and electrolytic destruction of the product. The material used for the tank walls is not important for measurement because the system is designed as a closed potential-free circuit between the probes and the electronics. There is absolutely no danger if the probes are touched during operation. | Input signal | probes covered - A measurable current is flowing between the probes. probes uncovered - There is no measurable current flowing between the probes. | Supply voltage | Output E5 (FEW52): supply voltage 10.8 ... 45 V DC load connection: open collector; PNP switching voltage: max. 45 V Output WA (FEW54): supply voltage 20 ... 55 V DC or 20 ... 253 V AC, 50/60 Hz peak inrush current: max. 2 A, max. 400 Вµs output: two potential-free change-over contacts output N1 (FEW58): refer to datasheet of the connected switch amplifier acc. to IEC 60947-5-6 (NAMUR) | EU-Type Examination Certificate | TГњV 03 ATEX 2295 | Non-repeatability | В± 5 % at 0.1 ... 100 kandOmega; В± 1 % at 1 ... 10 kandOmega; | Switching time | < 3 s | Switching delay | A switching delay of 2.0 s can be activated or deactivated via a DIL switch. If the switching delay is set to 0 s, the device switches after approx. 0.3 s. | Dimensions | LKL-P1: - housing: max. ГPEPPERL+FUCHS/Explosion Protection/Level Measurement;LMC-Ex;0.00;pepperl-fuchs-lmc-ex;0;0;Pepperl+Fuchs;;;;;;Magnetic Immersion Probe for Continuous Measurement;;
| Degree of protection | IEC 60529:2000 | Optional accessories | LML-FS1 float, ball, ГPEPPERL+FUCHS/Explosion Protection/Level Measurement |
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