E+H FTM51 Soliphant M Level Switch

Core Performance & Industrial Application

The Endress+Hauser FTM51-1GG2L7A32AA is a Soliphant M vibronic point level switch with a 1000 mm extension tube for fine-grained and powdery bulk solids in silos.

A piezoelectric drive excites the tuning fork to resonance; when covered by material the amplitude drops and the electronics triggers the switching output.

It has no moving mechanical parts, resists external vibration and product buildup, and offers selectable density setting and switching delay.

It supports multiple electronic inserts (relay, PNP/NAMUR, thyristor) and provides buildup/abrasion wear diagnostics.

It carries SIL 2 functional safety per IEC 61508 and international ATEX/IECEx dust and gas hazardous-area approvals.

It is widely used as spare replacement in cereal, flour, feed, sugar, powder and silo level detection systems.

Technical Specifications

▶ Product type: Vibronic point level switch

▶ Brand: Endress+Hauser

▶ Model: FTM51-1GG2L7A32AA

▶ Sensor length: 1000 mm (extension tube)

▶ Process temperature: -50℃ ~ +280℃

▶ Process pressure: -1 ~ +25 bar (-14.5 ~ +360 psi)

▶ Sensor material: 316L stainless steel (polished / coated option)

▶ Measuring principle: Tuning-fork resonance amplitude detection

▶ Output: Selectable electronic insert (relay / PNP / NAMUR / thyristor)

▶ Safety: SIL 2 (IEC 61508)

▶ Connection: Thread / flange / Tri-Clamp option

▶ Feature: Maintenance-free, buildup and abrasion display, adjustable density and delay

▶ Country of origin: Germany

▶ Compliance: CE, ATEX / IECEx, RoHS certification

Industry Applications

Applied in grain, flour, animal feed, sugar, cocoa and powder silos for high/low level detection spare replacement.

Note: Confirm electronic insert type, process connection and explosion-proof approval before ordering