Serviceline Industrial Sensors
Serviceline Explosion Protection

Magnetic Immersion Probe for Continuous Measurement LMC-Ex

  • Sensor for continuous level measurement in liquids
  • Resolution 5 mm or 15 mm
  • Media contacting parts of stainless steel
  • Mounting without removing the float
  • Approved for zone 0

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  LMC-Ex

General specifications
Equipment architectureA measuring system consists of a magnet-operated immersion probe LMC****-***-I-Ex with built-in converter and a transmitter power supply KFD2-STC4-Ex1 or of a magnet-operated immersion probe LMC****-***-O4-Ex and a potentiometer converter KFD2-PT2-Ex1.
Connectionversion I: 2-wire, 4 ... 20 mA
version O4: 3-wire, potentiometer connection approx. 40 kΩ
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61000-6-2:2006 , EN 61000-6-4:2011
Degree of protectionIEC 60529:2000
Measurement accuracy
- version LMC5: 5 mm
- version LMC15: 15 mm
Operating conditions
Process conditions
Process temperature-20 ... 100 °C (-4 ... 212 °F)
Process pressure (static pressure)≤ 16 bar (232.1 psi)
Densityversion S1: ≥ 0.6 g/cm3
version S2: ≥ 0.8 g/cm3
version S3: ≥ 0.7 g/cm3
Ambient conditions
Ambient temperatureterminal box: -50 ... 60 °C (-58 ... 140 °F)
Mechanical specifications
Degree of protectionIP66 / IP68
ConnectionVersion I: 2 terminals, max. 2.5 mm2
Version O4: 3 terminals, max. 2.5 mm2
Materialfloat, guide tube, process connection: stainless steel 1.4571/316Ti
terminal box: aluminum die-casting
- version S1: ball ∅80 mm
- version S2: cylinder ∅44 mm x 52 mm
- version S3: ball ∅52 mm
guide tube:
- version LMC5: ∅14 mm, max. length 3000 mm
- version LMC15: ∅12 mm, max. length 3000 mm
terminal box: 80 x 75 x 57 mm
Process connectionthread G1-1/2A, G2A to DIN/ISO 228/1
Data for application in connection with hazardous areas
EU-type examination certificateKEMA 03 ATEX 1497 X
MarkingEx-Hexagon II 1/2G EEx ia IIC T4...T6
Voltage28 V
Current120 mA
Internal capacitance0 nF
Internal inductance0 µH
Directive conformity
Directive 2014/34/EUEN 60079-0:2012, EN 60079-11:2012, EN 60079-26:2007
General information
Supplementary documentationinstruction manuals (SI)
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see
Designation- LML-FS1 float, ball, Ø80 mm, 1.4571/316Ti
- LML-FS4 float, ball, Ø44 mm, 1.4571/316Ti
- LML-FS5 float, ball, Ø52 mm, Titanium
- LML-FS6 float, cylinder, Ø44 mm x 52 mm, 1.4571/316Ti


ECLASS 13.027200502
ECLASS 12.027200502
ECLASS 11.027200502
ECLASS 10.0.127200502
ECLASS 9.027200502
ECLASS 8.027200502
ECLASS 5.127200502
ETIM 9.0EC001447
ETIM 8.0EC001447
ETIM 7.0EC001447
ETIM 6.0EC001447
ETIM 5.0EC001447
UNSPSC 12.141111950

Details: LMC-Ex


The device is a sensor for continuous level measurement in liquids.

A ring magnet integrated in the float activates a reed contact resistance chain inside the probe tube via its magnetic field.

If the level changes, the resistance chain changes its total resistance by closing the contact at the float level. The resistance is converted into a standardised output signal by a control unit. This output signal is proportional to the level of the measured medium.

Product Documentation: LMC-Ex

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF49 KB
Manual LMC-**ENGPDF835 KB

Approvals: LMC-Ex

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Europe KEMA ATEX Category 1/2 GKEMA 03 ATEX 1497XALLPDF2505 KB
South Africa MASCMASC S/22-8596XALLPDF2779 KB
Declaration of Conformity
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2126CALLPDF106 KB
Contamination Declaration
Declaration of Contamination / Erklärung zur Kontamination   ALLPDF137 KB