Solicap S FTI77

Summary

Product identification

• Product Name: Solicap S
• Model Number: FTI77
• Type: Capacitance point level switch
• Document ID: TI01561F/00/EN/03.25-00
• Revision Date: 2025-02-14

Application

The Solicap S FTI77 is a robust point level switch designed for applications involving bulk solids, even at very high temperatures. It is suitable for:

• Applications with very high lateral loads (up to 800 Nm for the sword version).
• Applications with abrasive media.
• Use in safety systems requiring functional safety to SIL2/SIL3.
• Bulk solids with a relative dielectric constant εr ≥ 2.5, including but not limited to: fly ash, sand, glass aggregate, gravel, molding sand, lime, crushed ore, plaster, aluminum shavings, cement, grain, pumice, dolomite, and kaolin.

Operating limits

• Process Temperature Range:
  • Sword and rope version (compact): +400 °C (+752 °F)
  • Separate housing version: –40 °C (–40 °F) to +70 °C (+158 °F)
  • Observe derating for ambient temperature at the housing based on process temperature.
• Process Pressure Range: –1 to 10 bar (–14.5 to 145 psi). Permitted pressure values depend on the selected flange.

Feed water

The device is intended for bulk solids with a relative dielectric constant εr ≥ 2.5. For non-conductive media with a conductivity < 1 µS/cm, the minimum probe length calculation is provided.

Product water

Not applicable. This device is for point level detection of bulk solids.

Electrical

Power Supply

• FEI51 (2-wire AC): 19 to 253 VAC, < 1.5 W power consumption, < 3.8 mA residual current consumption.
• FEI52 (3-wire DC PNP): 10 to 55 VDC, < 20 mA current consumption, max. 0.9 W power consumption without load.
• FEI53 (3-wire): 14.5 VDC, < 15 mA current consumption, max. 230 mW power consumption. For separate switching unit FTC325.
• FEI54 (AC/DC with Relay): 19 to 253 VAC (50-60 Hz) or 19 to 55 VDC. 1.6 W power consumption.
• FEI55 (SIL2/SIL3): 11 to 36 VDC, < 600 mW power consumption.
• FEI57S (PFM): Used with Nivotester FTC325 PFM.
• FEI58 (NAMUR): Used with Nivotester FTL325N.

Output

• Switch Behavior: Binary or Δs operation.
• Switching Delay:
  • FEI51, FEI52, FEI54, FEI55: 0.3 to 10 s.
  • FEI53, FEI57S: Depends on the connected Nivotester (FTC325).
  • FEI58: 1 s or 5 s.
• Fail-safe Mode: Minimum and maximum quiescent current safety can be switched.
• Galvanic Isolation: Varies by electronic insert (FEI51, FEI52, FEI54, FEI53, FEI55, FEI57S, FEI58).

Electrical Connection

• Various housing variants available for standard and hazardous area protection (Ex ia, Ex d).
• Connectors: M12 or 7/8".
• Cable entry: M20x1.5, G½, NPT½, NPT¾.

Mechanical / hydraulic

• Process Connections: Flanges and threads (R 1½, NPT 1½).
• Housing Materials: Aluminum (GD–Al Si 10 Mg), Polyester (PBT–FR), Stainless Steel (316L).
• Probe Materials: 316L or steel for process connection; 1.4401 (AISI 316) for probe rope.
• Dimensions: Detailed dimensions for various housing types (F16, F15, F17, F13, T13) and probe lengths are provided in diagrams.
• Weight:
  • Fine-grained probes: Approx. 3 kg (6.62 lb) (base weight).
  • Coarse-grained probes: Approx. 9 kg (19.85 lb) (base weight).
  • Additional weights for flange, inactive length, sword, and rope probes are specified.
• Lateral Loading Capacity: Up to 800 Nm (590 lbf ft) for rope probes in coarse-grained applications.
• Tensile Loading Capacity: 7,500 N (1,686 lbf) or 20,000 N (4,496 lbf) depending on probe type and application.

Environment

• Ambient Temperature Range:
  • F16 housing: –40 to +70 °C (–40 to +158 °F).
  • Other housings: –50 to +70 °C (–58 to +158 °F).
• Storage Temperature: –50 to +58 °C (–58 to +136.4 °F).
• Climate Class: DIN EN 60068-2-38/IEC 68-2-38: Z/AD check.
• Vibration Resistance: DIN EN 60068-2-64/IEC 68-2-64: 20 to 2,000 Hz, 0.01 g²/Hz.
• Shock Resistance: DIN EN 60068-2-27/IEC 68-2-27: 30 g acceleration.
• Degree of Protection: IP66, IP67, IP68 (depending on housing), Type4X (NEMA 250).

Disclaimer

This summary is based on extracted text and may omit figures, footnotes, or revisions. Contractual data must always be verified against the specific revision of the OEM PDF datasheet used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror