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Sensor for point level detection



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  • For the reliable level control in tanks and containers
  • Wide operating temperature range
  • Use in liquid and viscous media and bulk materials
  • Differentiation of media by parameterisation of the switching outputs
  • Reliable suppression of deposits or foam
  • ce
  • eac
  • cul
  • iolink
  • crn
Technische Details
Media Liquids; viscous media; powder
Recommended media water; hydrous media; oils; oil-based media; powder
Cannot be used for See the operating instructions, chapter "Function and features".
Probe length [mm] 40
Tank pressure [bar] -1...40
MAWP (for applications according to CRN) [bar] 40
Medium temperature [°C] -20...100
Medium temperature short time [°C] -20...150; (1 h)
Medium temperature [°C] -20...100
Medium temperature short time [°C] -20...150; (1 h)
Electrical data
Operating voltage [V] 18...30 DC
Current consumption [mA] < 50
Protection class III
Reverse polarity protection yes
Inputs / outputs
Number of inputs and outputs Number of digital outputs: 2
Total number of outputs 2
Output signal switching signal; IO-Link
Electrical design PNP/NPN
Number of digital outputs 2
Output function normally open / normally closed; (parameterisable)
Max. voltage drop switching output DC [V] 2.5
Permanent current rating of switching output DC [mA] 100
Short-circuit protection yes
Type of short-circuit protection pulsed
Overload protection yes
Communication interface IO-Link
Transmission type COM2 (38,4 kBaud)
IO-Link revision 1.1
SDCI standard IEC 61131-9 FDIS
IO-Link device ID 370 d / 00 01 72 h
Profiles Smart Sensor: Process Data Variable; Device Identification
SIO mode yes
Required master port type A
Process data analogue 1
Process data binary 2
Min. process cycle time [ms] 2.3
Operating conditions
Ambient temperature [°C] -20...85
Note on ambient temperature
Medium temperature: < 100 °C
-20...60 °C
Medium temperature: < 150 °C
Storage temperature [°C] -40...85
Protection IP 68; IP 69K
Tests / approvals
DIN EN 61000-6-2
DIN EN 61000-6-4 open tanks
DIN EN 61000-6-3 closed tanks
Shock resistance
DIN EN 60068-2-27 50 g (11 ms)
Vibration resistance
DIN EN 60068-2-6 20 g (10...2000 Hz)
MTTF [years] 223
Mechanical data
Weight [g] 252
Materials stainless steel (1.4404 / 316L); PEEK; PEI; FKM
Materials (wetted parts) PEEK; FKM
Process connection 1/2" NPT
Surface characteristics Ra/Rz of the wetted parts < 0.8
Displays / operating elements
switching status 2 LED, yellow
operating status 2 LED, green
Pack quantity 1 pcs.
Electrical connection
Connection Connector: 1 x M12; Contacts: gold-plated
ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — LMC502-01 — 11.05.2017 —