Description
The Soliphant FTM51 is a robust vibronic point level switch for use in silos containing fine-grained solids and powders, even with very low bulk density. It is ideally suited for applications such as cereals, flour, cocoa, sugar, animal feed, chalk, dye powders, and similar bulk materials.
The FTM51 operates without the need for calibration and is unaffected by build-up, dust, or external vibration. It provides reliable switching for solids with a minimum density as low as 10 g/l, with short fork options for denser products. Available in stainless steel versions with optional PTFE or ETFE coatings for anti-build-up or corrosion resistance.
With a tube extension up to 4000 mm (6000 mm on request) and global hazardous area certifications, the Soliphant FTM51 is designed for demanding process conditions, ensuring high operational reliability in safety-critical applications.
Specifications
| Category | Details |
|---|---|
| Manufacturer | Endress+Hauser |
| Series | Soliphant |
| Model | FTM51 |
| Type | Vibronic Point Level Switch for Solids |
| Measuring Principle | Vibration (tuning fork) |
| Application | Point level detection in fine-grained or powdery solids |
| Weight | 1.860 kg |
| Grain Size | ≤ 10 mm |
| Minimum Medium Density | Standard fork: 10 g/l Short fork: 50 g/l |
| Wetted Materials | Stainless steel 316L (Ra 3.2 µm / 0.8 µm) PTFE coated fork (anti-build-up) ETFE coated fork (corrosion resistance) |
| Housing Options | Aluminum, Stainless steel |
| Supply / Communication | DC PNP 3-wire AC 2-wire 19…253V AC / 19…55V DC, 2 relay contacts 8/16 mA, NAMUR, PFM |
| Ambient Temperature | –50 °C … +70 °C |
| Process Temperature | –50 °C … +280 °C |
| Process Pressure | Vacuum … 25 bar (360 psi) |
| Process Connections | Thread: R1 1/2″, 1 1/4″ NPT, 1 1/2″ NPT EN Flange: DN50…DN100 ASME Flange: 2″…4″ JIS Flange: 50A…100A Tri-Clamp ISO2852 |
| Sensor Length | 300 … 4000 mm (12 … 155″) Up to 6000 mm (230″) on request |
| Switching Output | DC PNP 2-wire AC thyristor DPDT relay 8/16 mA NAMUR PFM |
| Special Features | Tube extension, corrosion/build-up detection, SIL2 certified |
| Safety Approvals | SIL 2 (IEC 61508) |
| Certificates / Approvals | ATEX, IECEx, FM, CSA, CSA C/US, INMETRO, NEPSI, JPN, EAC |
| Design Approvals | EN 10204-3.1 |
| Options | Glass cover, temperature spacer, EN10204-3.1 certification |
| Components | PFM: FTL325P, FTL375P NAMUR: FTL325N, FTL375N |
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