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| 电源 | |
|---|---|
| Current consumption | output E5 (FEW52): I < 25 mA (without load) |
| Power consumption | output E5 (FEW52): P < 1.1 W |
| Rated voltage | U r | output E5 (FEW52): supply voltage 10.8 ... 45 V DC load connection: open collector; PNP switching voltage: max. 45 V output N1 (FEW58): refer to datasheet of the connected switch amplifier acc. to IEC 60947-5-6 (NAMUR) |
| 交流 / 直流特性 | |
| 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. |
| 环境与封装 | |
| Ambient temperature | -40 ... 70 °C (-40 ... 158 °F) -40 ... 60 °C (233 ... 333 K) for output N1 (FEW58) |
| Dimensions | housing: max. Ø85 mm (3.3 inch), height max. 145 mm (5.7 inch) rope probes: compact instrument version 2 or 3 ropes, separate instrument version 2, 3 or 5 ropes - diameter without insulation: Ø1 mm (0.04 inch) - rope length: 250 ... 15000 mm (10 inch ... 49 ft) - thickness of insulation: 0.75 mm (0.03 inch) - weight length: 100 mm (4 inch) (not insulated) - weight diameter: Ø10 mm (0.4 inch) - extraction forces: 500 N |
| Influence of ambient temperature | < 0.05 %/K |
| Medium temperature | -40 ... 100 °C (-40 ... 212 °F) |
| Medium temperature -40 ... 100 °C (-40 ... 212 °F) Medium pressure -1 ... 10 bar (-14.5 ... 145 psi) Conductivity ≥ 10 µS | Medium temperature | -40 ... 100 °C (-40 ... 212 °F) | Medium pressure | -1 ... 10 bar (-14.5 ... 145 psi) | Conductivity | ≥ 10 µS |
| Mounting location | mounting in tanks made of plastic or metal |
| Mounting location mounting in tanks made of plastic or metal | Mounting location | mounting in tanks made of plastic or metal |
| Storage temperature | -40 ... 80 °C (-40 ... 176 °F) |
| 其他 | |
| Certificate | Pepperl+Fuchs |
| Climate class | EN 60068, part 2-38 (test Z/AD) |
| Climatic conditions | tropicalized |
| Conductivity | ≥ 10 µS |
| Connection | see section electrical connection |
| Construction type | device with rope probe |
| 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 Ω, 1 kΩ, 10 kΩ, 100 kΩ |
| Degree of protection | IEC 60529:2001 |
| Designation | - LKL-Z10 lock nut G1-1/2, AF60 - LZ-1204 mounting bracket G1-1/2 - electronic insert E5 (FEW52), output PNP 10.8 V DC ... 45 V DC - electronic insert N1 (FEW58), output NAMUR (IEC 60947-5-6) |
| Directive 2014/30/EU | EN 61326-1:2006 , EN 61326-2-3:2006 |
| Directive 2014/30/EU EN 61326-1:2006 , EN 61326-2-3:2006 | Directive 2014/30/EU | EN 61326-1:2006 , EN 61326-2-3:2006 |
| Directive 2014/34/EU | EN 60079-0:2009 , EN 60079-11:2007 |
| Directive 2014/34/EU EN 60079-0:2009 , EN 60079-11:2007 | Directive 2014/34/EU | EN 60079-0:2009 , EN 60079-11:2007 |
| Directive 2014/35/EU | EN 61010-1:2001 |
| Directive 2014/35/EU EN 61010-1:2001 | Directive 2014/35/EU | EN 61010-1:2001 |
| Display elements | separate instrument version: dependent on the connected switching unit compact instrument version: output E5 (FEW52): - 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 |
| Electromagnetic compatibility | NE 21 |
| EU-type examination certificate | TÜV 03 ATEX 2295 |
| Hysteresis | -10 % for the max probe, in reference to the switch point, Δs function deactivated |
| Impact resistance | practical test |
| Input signal | probes covered - A measurable current is flowing between the probes. probes uncovered - There is no measurable current flowing between the probes. |
| 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 I max 2.9 V output N1 (FEW58): refer to datasheet of the connected switch amplifier acc. to IEC 60947-5-6 (NAMUR) |
| Marking | II 2G Ex ia/ib IIB/IIC T6...T5 Gb |
| Marking II 2G Ex ia/ib IIB/IIC T6...T5 Gb | Marking | II 2G Ex ia/ib IIB/IIC T6...T5 Gb |
| Marking II 3G Ex nA/nC (L) IIC T6 | Marking | II 3G Ex nA/nC (L) IIC T6 |
| Mass | separate instrument version: with probe length 1 m (3 ft), with 2, 3 or 5 ropes: 390 g, 470 g, 640 g compact instrument version: with probe lentgth 1 m (3 foot), with 2 or 3 ropes: 710 g, 800 g |
| Material | rod probes: 1.4404/316L, insulation: PP housing: - output NA (separate instrument version): housing PPS, cover PBT - output E5/N1 (compact instrument version): housing PBT, cover PBT, adapter PBT process connections: PPS |
| Maximum measured error | ± 10 % at 0.1 ... 100 kΩ ± 5 % at 1 ... 10 kΩ |
| Measured variable | resistance change between two conductors caused by the presence or absence of a conductive product. |
| Measuring method | An alternating voltage exists between the probes in an empty tank. As soon as the conductive liquid in the tank creates a connection between the ground probe and, for example, the maximum probe, a measurable current flows and the device switches. With level limit detection, the device switches back as soon as the liquid clears the maximum probe. With two-point control, the device does not switch back until the max and min probe is cleared. Using alternating voltage prevents 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. |
| Measuring range | The measuring range depends on the mounting location of the device 100 ... 15000 mm |
| Medium pressure | -1 ... 10 bar (-14.5 ... 145 psi) |
| Non-repeatability | ± 5 % at 0.1 ... 100 kΩ ± 1 % at 1 ... 10 kΩ |
| Operating 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 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. |
| Output signal | see section electrical connection |
| Overspill protection | Z-65.13-378 (overspill protection acc. to WHG) Z-65.40-379 (leak detection system acc. to WHG) see approval (ZE) |
| Process connection | - thread G1-1/2 acc. to DIN/ISO 228/1 - thread NPT1-1/2 acc. to ANSI B 1.20.1 |
| Reference operating conditions | ambient temperature: 23 °C (296 K), medium temperature: 23 °C (296 K), medium viscosity: medium must release the probe again (drain off), medium pressure pe: 0 bar, probe installation: vertically from above |
| Reverse polarity protection | output E5 (FEW52) |
| Series | LKL-P2 |
| Signal on alarm | output E5 (FEW52): in the event of a power failure or a damaged probe: < 100 µA output N1 (FEW58): output signal with damaged sensor < 1 mA |
| Supplementary documentation | technical information (TI) brief instructions (KA) approval (ZE) |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Switching time | < 3 s |
| Type | sensor for conductive limit value detection |
| Versions | 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 |
| Vibration resistance | EN 60068-2-64 |
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