Nivector FTI26

Summary

Product identification

• Product name: Nivector FTI26
• Product type: Point level switch for powdered and fine-grained solids
• Measuring principle: Capacitance

Application

Reliable minimum or maximum detection of powders or fine-grained bulk solids in silos.

• Typical applications: Plastic granules, detergent, grain, sugar, spices, milk powder, animal feed.
• Suitable for: Food industry, hazardous atmospheres formed by combustible dust (zone 20).
• Certificates: 3-A, EHEDG, FDA-compliant, meets EU 1935/2004.

Operating limits

• Process temperature range: –20 to +80 °C (–4 to +176 °F)
  • For Ex devices: –20 to +75 °C (–4 to +167 °F)
• Process pressure range: –1 to +6 bar (–14.5 to +87 psi)
• Ambient temperature range: 0 to 90 °C (32 to 194 °F) (refer to graph for specific limits)
• Storage temperature: –25 to +85 °C (–13 to +185 °F)
• Relative humidity: 0 to 100 %
• Altitude: Up to 2000 m (6600 ft) above sea level

Feed water (Process fluid)

• Type: Powdery and fine-grained bulk solids
• Grain size: < 10 mm
• Dielectric constant (Dk): > 1.3
  • Default values: εr > 1.6 with protector, εr > 2.0 without protector

Product water (Switch output)

• Designation: 3-wire DC-PNP
• Output types:
  • 2 DC-PNP outputs, switched using XOR operation
  • 2 DC-PNP outputs, freely configurable (with IO-Link)
• Connectable load:
  • 200 mA (short-circuit proof)
  • 105 mA each if both switch outputs are active (short-circuit proof)
• Residual voltage: < 3 V
• Residual current: < 100 µA
• Safety-related switching: MIN or MAX point level detection. Electrical switch opens on reaching point level, in case of faults, or power outage.

Electrical

• Supply voltage: 12 to 30 V DC (IO-Link requires ≥ 18 V DC)
• Power consumption: < 1.2 W (at max. load: 200 mA)
• Current consumption: < 20 mA (excluding load)
  • With two outputs connected: < 25 mA
• Electrical connection: M12 plug or valve plug
• Overvoltage protection: Overvoltage category II
• Reverse polarity protection: Integrated
• Short-circuit protection: Integrated (overload protection/short-circuit protection at I > 200 mA)
• IO-Link: Version 1.1, COM2 speed (38.4 kBaud), Minimum cycle time: 6 msec.

Mechanical / hydraulic

• Housing: Stainless steel or plastic
• Process connection: G 1", G 1½", R 1½", NPT 1½" (depending on configuration and accessories)
• Degree of protection:
  • IP65/67 NEMA Type 4X (Plastic housing cover with M12)
  • IP66/68/69 NEMA Type 4X/6P (Metal housing cover with M12)
  • IP65 NEMA Type 4x (Plastic housing cover with ISO4400 M16/NPT ½" valve plug)
• Weight:
  • Plastic with M12 plug: 118 g (4.162 oz)
  • Stainless steel with M12 plug: 240 g (8.465 oz)
• Wetted materials: 316L (1.4404), ECTFE, Polycarbonate (depending on part and order code)
• Non-wetted materials: 316L (1.4404/1.4435), Polycarbonate, PPSU, PA, PBT/PC (depending on part and order code)
• Surface roughness (sensor): Ra ≤ 0.76 µm (30 µin) for option "WDJ"

Performance characteristics

• Reference operating conditions: Accuracy in accordance with DIN EN 61298-1.
  • Non-repeatability: ± 1 %
  • Uncertainty, absolute: ± 2.5 %
  • Hysteresis: + 0.5 % ± 0.5 %
• Switch-on behavior: < 2 s
• Influence of ambient temperature: Maximum 0.07 %/K
• Switch-on delay: < 2 s until correct switch status is set.
• Switching delay:
  • 0.5 s (sensor covered)
  • 1.0 s (sensor uncovered)
  • IO-Link communication: 0.3 to 60 s configurable

Installation

• Mounting location: Lateral mounting in bulk solids silos, indoors or outdoors.
• Installation instructions: Sensor surface projecting ≥ 20 mm (0.79 in) into silo. Silo wall thickness < 35 mm (1.38 in).

Accessories

• Weld-in adapter
• Process adapter (e.g., Tri-Clamp)
• Protector (G 1½", R 1½", NPT 1½")
• Lock nut
• Protection cover
• Test magnet
• Connection adapters (M12, valve plugs)

Certificates and approvals

• CE mark
• RoHS
• RCM-Tick marking
• EAC conformity
• Ex approval (data in separate documentation)
• 3-A
• EHEDG
• FDA-compliant

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Disclaimer: Extraction may miss figures, footnotes, or revisions; contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror