IFM LMT121 Point Level Sensor 11mm PNP/NPN IO-Link IP69K EHEDG

Overview
The IFM LMT121 (LMACE-A12E-QSKG-2/US) is a high‑performance point level sensor based on capacitive measurement technology, designed for reliable level control in tanks and containers across demanding industrial applications, particularly in the food and beverage industry. This hygienic, maintenance‑free sensor detects the presence or absence of media across a wide spectrum — from liquids and viscous media to bulk solids and powders. With two programmable switching outputs (PNP/NPN, NO/NC) offering flexible integration, and advanced signal processing for reliable suppression of deposits or foam, the LMT121 delivers accurate detection even in challenging media conditions. The compact 11 mm PEEK probe with G 1/2 sealing cone process connection allows integration even in small DN25 pipes. The robust stainless steel (316L) body and PEEK wetted parts are electropolished to Ra < 0.8 µm / Rz 4, meeting strict sanitation requirements. Rated IP68 and IP69K, it withstands continuous immersion and high‑pressure, high‑temperature washdowns, making it ideal for hygienic and harsh industrial environments. Integrated IO‑Link V1.1 communication (COM2, 38.4 kBaud) enables remote parameterisation, process data readout, and extended diagnostics.

Key Features

• Original brand new, within warranty period – Factory‑sealed, genuine IFM component with full manufacturer warranty.

• 100% Satisfaction Guarantee – Risk‑free purchase; if you are not completely satisfied, we will replace or refund.

• Hygienic design for food and beverage industry – Stainless steel (1.4404/316L) housing and PEEK wetted parts with electropolished surface finish (Ra < 0.8 / Rz 4), meeting EHEDG and FDA compliance requirements for sanitary applications.

• Multi‑media compatibility with compact 11 mm probe – Detects liquids (water‑based and oil‑based), viscous media, bulk solids, and powders; compact 11 mm probe tip allows integration even in small DN25 pipes.

• Differentiation of media by parameterisation of switching outputs – Two independently adjustable switch points enable identification of different media (e.g., water vs. oil), providing phase separation and interface detection capabilities.

• Reliable suppression of deposits or foam – Advanced capacitive measurement with signal processing algorithms reliably suppresses false readings caused by deposits, buildup, or foam on the probe, ensuring accurate level detection in challenging media conditions.

• Dual programmable switching outputs (PNP/NPN) – Two digital outputs (PNP/NPN, configurable as NO or NC) with a switching capacity of 100 mA per output, short‑circuit (pulsed type) and overload protected.

• IO‑Link V1.1 communication – Integrated IO‑Link interface (COM2, 38.4 kBaud) with Smart Sensor Profile enables remote parameterisation, process data readout (1 analogue + 2 binary), and extended diagnostics, with a minimum process cycle time of 2.3 ms, supporting SIO mode.

• Extreme environmental protection (IP68/IP69K) – IP68 rating for continuous immersion, plus IP69K rating for resistance to high‑pressure, high‑temperature washdowns, making it ideal for food processing, CIP/SIP cleaning cycles, and outdoor installations.

• Wide temperature and pressure range – Operates with media temperatures from -40 °C to 100 °C (up to 150 °C for 1 hour), ambient temperatures from -40 °C to 85 °C, and tank pressures up to 40 bar (MAWP for CRN applications), suitable for demanding process applications including CIP/SIP cycles.

• High reliability with MTTF of 223 years – Exceptional mean time to failure of 223 years ensures long‑term dependable operation, minimising unplanned downtime and maintenance costs.

Technical Specifications

Applications

• Food and beverage industry: Level control in mixing tanks, storage vessels, filling lines, CIP/SIP washdown environments; ideal for water, oil, milk, sauces, syrups, and granular materials.

• Dairy processing: Milk pasteurisation, cheese vats, yoghurt fermentation, and cream storage level monitoring.

• Brewing and beverage: Mash tuns, fermentation tanks, bright beer tanks, carbonation vessels, and syrup tank level control.

• Liquid media monitoring: Overfill protection, dry‑run prevention, and low‑level alarms for water‑based and oil‑based liquids.

• Viscous media: Detection of syrups, pastes, creams, gels, sauces, and other thick substances in food, pharmaceutical, and cosmetic manufacturing.

• Bulk solids and powders: Level detection for powders, granules, and fine bulk materials in hoppers, silos, and conveyors.

• Phase separation and interface detection: Differentiation between two media types (e.g., oil / water separation) using two independently programmable switching outputs.

• Pharmaceutical processing: Level monitoring in bioreactors, mixing tanks, and storage containers requiring hygienic design and FDA compliance.

• Industrial automation: Level control in coolant tanks, hydraulic reservoirs, and lubrication systems.

Package Includes

• 1 × IFM LMT121 point level sensor (LMACE-A12E-QSKG-2/US)

• Gold‑plated M12 connector contacts (pre‑installed)

⚠️ Factory preset to media with low water content. For other media (oils, powders, etc.), parameterisation via IO‑Link or teach process is required. M12 mating connector sold separately.