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Replaced by: LK8123 – Product comparison: LK8023 / LK8123
For 8-wire cordsets the core colors are not standardized.
Please note the wiring of the sensor and the cordsets (see data sheet).


Continuous level sensor


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Unfortunately, this data sheet is not available in the requested language. If you have any further questions, you can contact us by e-mail.

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Your ifm team

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Technische Details
Product characteristics
Number of inputs and outputs Number of digital outputs: 4
Probe length L [mm] 472
Media hydrous coolants; mineral oils (dielectric constant < 3); water; media similar to water
Dielectric constant of the medium > 2
Cannot be used for media with separation layers (oil / water; oil / metal layer); acids and alkalis
Medium temperature [°C] 0...65; (medium temperature for oils; medium temperature for coolant emulsions, water and hydrous media)
Tank pressure [bar] 0.5; (when mounting with mounting accessories: E43001 - E43007, E43019)
Electrical data
Operating voltage [V] 18...30 DC
Current consumption [mA] < 80
Protection class III
Reverse polarity protection yes
Power-on delay time [s] 3
Inputs / outputs
Number of inputs and outputs Number of digital outputs: 4
Total number of outputs 4
Output signal switching signal
Electrical design PNP
Number of digital outputs 4
Output function normally open / closed; (configurable)
Max. voltage drop switching output DC [V] 2.5
Permanent current rating of switching output DC [mA] 300; (400 (...25 °C))
Short-circuit protection yes
Type of short-circuit protection yes (non-latching)
Overload protection yes
Measuring/setting range
Probe length L [mm] 472
Active range A [mm] 390
Inactive range I1 / I2 [mm] 53 / 30
Setting range
Set point SP [mm] 40...415
Reset point rP [mm] 35...410
In steps of [mm] 5
Hysteresis [mm] 5
Accuracy / deviations
Measuring error [% of the final value] ± 5
Repeatability ± 2
Software / programming
Adjustment of the switch point Programming button
Operating conditions
Ambient temperature [°C] 0...60
Storage temperature [°C] -25...80
Protection IP 67
Tests / approvals
EN 61000-4-2 ESD 4 kV CD / 8 kV AD
EN 61000-4-3 HF radiated 10 V/m
EN 61000-4-4 Burst 2 kV
EN 61000-4-5 Surge 500 V / 1 kV
EN 61000-4-6 HF conducted 10 V
Shock resistance
12 g
Vibration resistance
2.5 g
MTTF [years] 224
Mechanical data
Dimensions [mm] Ø 16
Material EPDM/X; FKM; brass Optalloy-plated; NBR; PA; PBT; PC; PP
Materials (wetted parts) PP
Displays / operating elements
Switching status 3 x LED, red
Function display 7-segment LED display
Measured values 7-segment LED display
for water and hydrous media with temperatures > 35 °C install the unit into a climatic tube
Notes For 8-wire cordsets the core colors are not standardized.; Please note the wiring of the sensor and the cordsets (see data sheet).
Pack quantity 1 pcs.
Electrical connection
Connection Connector: 1 x M12; Contacts: gold-plated
ifm efector, inc. • 1100 Atwater Drive • Malvern • PA 19355 — We reserve the right to make technical alterations without prior notice. — EN-US — LK8023-00 — 14.11.2012 —