Endress+Hauser Nivocompact FTC 131 Technical Information
Endress+Hauser Nivocompact FTC 131 Technical Information

Endress+Hauser Nivocompact FTC 131 Technical Information

Capacitance limit detection. compact level limit switches for bulk solids

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Technical
Information
TI 133F/00/en
FTC 131
Capacitance Limit Detection
nivocompact FTC 131/231/331
Compact level limit switches for bulk solids
Applications
The Nivocompact FTC... is used for limit
detection in silos containing bulk solids
(for minimum or maximum level
indication). Three versions cover almost
any measuring application:
FTC 131 with rod probe ø 25 mm,
for mounting laterally or from above.
Mainly for maximum detection of
fine-grained or powdery bulk solids.
For minimum detection in small silos
with light bulk solids.
For use in the food processing industry.
Advantages:
• Complete unit consisting of probe with
plug-in electronic insert:
– simple mounting, low installation
costs
– for automation and control systems
(PLC, PCS, PC, relays, contactors,
etc.)
• No moving parts in silo:
– no wear, long operating life
– no maintenance
• Simple calibration:
– variable switchpoint with probes
mounted from above
• Rope version can be easily shortened:
– can be used for various limit values
– short delivery time
Endress
Nothing beats know-how
FTC 231 with rope probe ø 10 mm,
for mounting from above.
Mainly for maximum detection.
For minimum detection with light bulk
solids.
FTC 331 with rope probe ø 16 mm,
for mounting from above.
For maximum and minimum detection
with heavy bulk solids.
FTC 231
+
Hauser
FTC 331

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Summary of Contents for Endress+Hauser Nivocompact FTC 131

  • Page 1 Technical Capacitance Limit Detection Information nivocompact FTC 131/231/331 TI 133F/00/en Compact level limit switches for bulk solids Applications FTC 231 with rope probe ø 10 mm, The Nivocompact FTC… is used for limit for mounting from above. detection in silos containing bulk solids Mainly for maximum detection.
  • Page 2: Application Examples

    Sand Glass aggregate Note: Application Examples Gravel Moulding sand Bulk solids should have dielectric constants ε ≥ 2.5. Lime Ore, crushed Plaster Aluminium shavings Cement Grain Pumice Flour Dolomite Sugar beet chips Kaolin Fodder and similar bulk solids The Nivocompact is an electronic switch. The Complete FTC 231/331 The entire measuring system consists of:...
  • Page 3: Fail-Safe Mode

    Fail-Safe Mode Safety Level Electronic Switch Switching Connected Maximum fail-safe mode (load circuit closed) Full Disconnected (load circuit open) Connected Minimum fail-safe mode (load circuit closed) Disconnected (load circuit open) Empty Disconnected Power failure (load circuit open) The electronic switch operates according to TI133Y02 the fail-safe switching...
  • Page 4 Nivocompact FTC 131 Basic Differences ∅ max. Rod probe, ø 25 mm Between Probes Insulation PE max. 80 Probe length 350 mm Nivocompact FTC 231 Rope probe, ø 10 mm Insulation PA Probe length max. 22 m Tensile load max. 3 t Nivocompact FTC 331 Rope probe, ø...
  • Page 5: Installation General Information

    Installation General Information Filling the Silo FTC 231 The filling stream should not be directed FTC 331 onto the probe. Angle of Material Flow Note the angle of material flow or the outlet funnel when determining the measuring point or probe length. Angle of slope min.
  • Page 6 Project Planning Correct Installation Incorrect Installation Nivocompact FTC 131 Metal wall Short approx. approx. max. 30 Nm TI133Y04 Silo with metal walls a) Maximum level detection; d) Threaded socket too long. Short threaded socket (ideally 25 mm Material can settle and lead to error.
  • Page 7 Project Planning Correct Installation Incorrect Installation Nivocompact FTC 231 and FTC 331 approx. 0.1 L to 0.3 L min. 0.4 m max. 3 t (FTC 231) max. 8 t (FTC 331) TI133Y08 Silo with metal walls a) The correct distance from the silo b) The probe can be damaged by the wall, the material filling curtain and inflowing material if mounted too near...
  • Page 8 Steel plate connected to Heat the reinforcing insulation steel recommended with condensation: Concrete Steel plate roof TI133Y09 Silo with concrete walls The 25 mm long threaded socket should Heat insulation prevents condensation project into the silo so as to minimise and build-up on the steel plate.
  • Page 9 Load Limit Values Diameter of Wiring Wiring Connections Note the limit values of the loads to Because of the small currents used, General Information only small diameter cabling is required. which you want to connect the Nivocompact. Exceeding the load can Low-cost cabling with diameters of destroy the electronic insert (or the relay 0.5 mm...
  • Page 10 Connecting the Nivocompact Connecting the with Electronic Insert EC 22 EC 22, EC 23 (Three-Wire PNP) or Electronic Insert EC 23 EC 22 (Three-Wire NPN) for DC Voltage Connecting the Nivocompact with Transistor circuit for load electronic insert EC 22 The load connected to Terminal 3 is PNP connection switched by a transistor, contactless...
  • Page 11: Technical Data

    For calibrating, the Nivocompact should Calibration with an empty silo requires Adjustment and be adjusted to the capacitance value of less handling of the electronic insert. Calibration Features the capacitor formed by the probe and wall of the silo. You can also select the fail-safe mode required for your particular application.
  • Page 12 Housing Versions Aluminium housing with Aluminium housing with Aluminium housing with Synthetic housing in standard cable gland water-tight cable gland synthetic coating, for PBTP with water-tight PG 16, PG 16, aggressive cable gland PG 16, Protection IP 55 Protection IP 66 atmospheres;...
  • Page 13 Order Specification Key FTC 131 capacitance level limit switch with rod probe, ø 25 mm Nivocompact FTC 131 Weight Process Connection G Thread G 1 , steel 0.48 kg H Thread NPT 1 ", steel 0.48 kg K Thread G 1 , 1.4571...
  • Page 14 Order Specification Key FTC 231 capacitance level limit switch with rope probe, ø 10 mm Nivocompact FTC 231 Weight Process Connection G Thread G 1 , steel 0.58 kg H Thread NPT 1 ", steel 0.58 kg K Thread G 1 , 1.4571 0.58 kg N Thread NPT 1...
  • Page 15 Order Specification Key FTC 331 capacitance level limit switch with rope probe, ø 16 mm Nivocompact FTC 331 Weight Process Connection G Thread G 1 , steel 0.58 kg H Thread NPT 1 ", steel 0.58 kg K Thread G 1 , 1.4571 0.58 kg N Thread NPT 1...
  • Page 16: Supplementary Documentation

    • Seal for thread G1 1/2 A: • Protective sun cover Accessories in elastomer/fibre (asbestos-free) for aluminium housing supplied Material: polyamide • Butterfly Weight for FTC 231 or FTC 331 Material: steel Weight: approx. 3.2 kg TI133Y22 TI133Y21 Dimensions of butterfly Dimensions of weight (accessory).

This manual is also suitable for:

Nivocompact ftc 231Nivocompact ftc 331

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