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Sensor for point level detection in hazardous areas



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Your ifm team

  • For the reliable level control in tanks and containers
  • Hygienic design for the requirements of the food and beverage industry
  • Use in liquid and viscous media and bulk materials
  • Differentiation of media by parameterisation of the switching outputs
  • For applications in hazardous areas
  • ce
  • fda
  • ehedg
  • iolink
  • ec19352004
Comprehensive technical data in pdf format

Technische Details
Media Liquids; viscous media; powder
Cannot be used for See the operating instructions, chapter "Function and features".
Medium temperature [°C] -20...85
Probe length [mm] 253
Tank pressure [bar] -1...40
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
Measuring/setting range
Factory setting oils; oil-based media; powder
Communication interface IO-Link
Transmission type COM2 (38,4 kBaud)
IO-Link revision 1.1
SDCI standard IEC 61131-9
IO-Link device ID 0x000282
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...60
Storage temperature [°C] -40...85
Protection IP 67; (use outside the hazardous area: IP 68 / IP 69)
Tests / approvals
ATEX marking II 3D Ex tc IIIC T90°C Dc
II 3G Ex nA IIC T4 Gc
DIN EN 61000-6-2
DIN EN 61000-6-4 closed tanks
Shock resistance
DIN EN 60068-2-27 50 g (11 ms)
Vibration resistance
DIN EN 60068-2-6 8 g (10...2000 Hz)
MTTF [years] 223
Mechanical data
Weight [g] 362
Materials stainless steel (1.4404 / 316L); stainless steel (1.4571/316Ti ); PEEK; PEI; FKM
Materials (wetted parts) stainless steel (1.4404 / 316L); stainless steel (1.4571/316Ti ); PEEK; FKM
Process connection G 1/2 external thread
Surface characteristics Ra/Rz of the wetted parts < 0.8
Displays / operating elements
switching status LEDs, yellow
operating status LEDs, green
Pack quantity 1 pcs.
Electrical connection
Connection Connector: 1 x M12; Contacts: gold-plated
ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — EN-GB — LMT04A — 21.09.2015 —