Liquipoint FTW23

Summary

Product identification

• Product Name: Liquipoint FTW23
• Product Type: Capacitance point level measurement

Application

The Liquipoint FTW23 is a point level switch designed for water-based liquids, with suitability for alcohol-, oil-based liquids, or powdered products when using IO-Link. It is commonly used in storage tanks, mixing vessels, and pipes. The device meets international hygiene requirements for the food and beverage industry.

Operating limits

• Process Temperature: Up to 100 °C (212 °F) continuously.
• Cleaning/Sterilization Temperature: Up to 135 °C (275 °F) for 60 minutes.
• Process Pressure: –1 to +16 bar (–14.5 to +232 psi).

Feed water

• Default Medium: Water-based media with a dielectric constant (DC) > 20.
• With IO-Link: Adjustable for media with DC > 1.5, including water-, alcohol-, and oil-based liquids, or powdered products.

Product water

Not applicable for this product.

Electrical

• Supply Voltage: 10 to 30 V DC (minimum 18 V DC required for IO-Link).
• Power Consumption: < 1.2 W (at max. load: 200 mA).
• Current Consumption: < 40 mA.
• Switch Output:
  • 3-wire DC-PNP: 2 DC-PNP outputs, XOR switched, 200 mA connectable load (short-circuit proof).
  • Devices with IO-Link: 3- or 4-wire DC-PNP, 2 freely configurable DC-PNP outputs.
    • 1 switch output active: 200 mA connectable load.
    • Both switch outputs active: 105 mA each connectable load.
• Residual Voltage: < 3 V.
• Residual Current: < 100 µA.
• Overvoltage Protection: Category II.
• Reverse Polarity Protection: Integrated.
• Short-Circuit Protection: Integrated, with intelligent monitoring and automatic resumption of normal operation.

Mechanical / hydraulic

• Housing: Robust stainless steel.
• Connection Options: M12 connector (optional with IP69 protection).
• Wetted Material: 316L (1.4404), PEEK.
• Wetted Sensor Surface Roughness: Ra ≤ 0.76 µm (30 µin).
• Weight: Max. 300 g (10.58 oz).
• Degree of Protection:
  • IP65/67 (NEMA Type 4X Enclosure for plastic housing cover).
  • IP66/68/69 (NEMA Type 4X/6P Enclosure for metal housing cover).
• Shock Resistance: In accordance with prEN 60068-2-27: a = 300 m/s², 30 g.
• Vibration Resistance: In accordance with EN 60068-2-64: a(RMS) = 50 m/s², f = 5 to 2000 Hz.
• Cleaning: Resistant to typical cleaning agents; passed Ecolab test.

Performance characteristics

• Switching Accuracy: ±2 mm (0.08 in).
• Hysteresis: Typically ±1 mm (0.04 in).
• Non-repeatability: ±1 mm (0.04 in).
• Switch-on Delay: < 2 s.
• Switching Delay:
  • 0.5 s (sensor covered).
  • 1.0 s (sensor uncovered).
  • 0.3 to 600 s (IO-Link communication).

Environment

• Ambient Temperature Range: –20 to +70 °C (–4 to +158 °F).
• Storage Temperature: –40 to +85 °C (–40 to +185 °F).
• Climate Class: DIN EN 60068-2-38/IEC 68-2-38: test Z/AD.
• Altitude: Up to 2000 m (6600 ft) above sea level.

Certificates and approvals

• CE approval
• EAC conformity
• RCM marking
• CSA C/US General Purpose
• 3-A and EHEDG certificates
• Meets requirements of EU 1935/2004, 10/2011, 2023/2006 and FDA 21 CFR 177.2415.

IO-Link

• Interface: IO-Link communication interface type 2 with second IO function on pin 4.
• Specification: Version 1.1, Smart Sensor Profile 2nd Edition.
• Speed: COM2; 38.4 kBaud.
• Minimum Cycle Time: 6 msec.
• Process Data Width: 16 bit.

Operability

• Onsite function check via LED indication.
• Function testing of switch outputs with a test magnet.
• IO-Link offers operator-oriented menu structure, quick commissioning, and diagnostic behavior.

Accessories

• Process adapters (e.g., M24).
• Weld-in adapters.
• Slotted nut DIN11851.
• Test magnet.
• Special socket wrench.
• Cables with M12 connectors (IP69 with/without LED, IP67 without LED).

Disclaimer: This 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