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Polyphenylene Sulfide, NO or NC Tuning Fork Level Switch
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LTU-100A-R-Series

Polyphenylene Sulfide, NO or NC Tuning Fork Level Switch

Models In Stock
  • All Plastic Design Works in a Wide Variety of Applications
  • Not Bothered by Foam or Bubbles
  • SPST Relay Standard
  • Excellent for Use in Food, Pharmaceutical, and Wastewater Applications
LTU-100A-R-Series
From TWD 18,496
Models In Stock
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2 Variations available
See all series options below
LTU-100A-R-SeriesData Sheet

Data Sheet
Polyphenylene Sulfide, NO or NC Tuning Fork Level Switch LTU-100A-R-Series LTU-100A-R-Series
Product Overview
  • Accuracy ± 0.04 inH2O
  • Approvals CE
  • Cable Length 1000 ft
  • Enclosure Ratings IP68, NEMA Type 6
  • Insulation Shield and PP Jacket
  • Materials, Wetted PPS
  • Media Compatibility Clean process / cooling water, Oils / lubricants, Organic solvents
  • Number of Wires 5
  • Operating Pressure, Max 150 psi
  • Operating Pressure Note 150 psi @ 25°C (76°F), derated @ 1.667 psi per °C above 25°C (76°F)
  • Operating Temperature, Max 80 °C
  • Operating Temperature, Min -40 °C
  • Power Consumption 25 mA
  • Probe Length 4.5 in
  • Process Connection Size 3/4 in
  • Repeatability ± 0.02 inH2O
  • Series ID LTU-100A-R-Series
  • Supply Power Type DC
  • Supply Voltage 12 to 28 Vdc
  • Switch Rating 1 A @ 60 VA
  • Switch Type SPST
  • Vibration 400 Hz

Supported Applications

The Omega LTU-101A series is a tuning fork level sensor designed for liquid and slurry detection. The product overview identifies applications involving frequent liquid composition changes, specifically citing food, pharmaceutical, and wastewater environments. Factory calibration supports accuracy across various liquids, including lubricating oils and hydraulic fluids.

Operating Conditions & Performance

The series operates within a process temperature range of -40 to 80°C (-40 to 176°F). The pressure rating is specified as 150 psi (10 bar) @ 25°C (76°F), with derating applied at 1.667 psi (0.113 bar) per °C above 25°C (76°F). Performance metrics include an accuracy of ±1 mm (0.04") in water and repeatability of ±0.5 mm (0.02") in water.

The sensor features a NEMA 6 (IP68) enclosure rating. The overall dimensions are listed as 114 x 27 mm (4.5 x 1.05").

Media Compatibility

  • Liquids
  • Slurries
  • Lubricating oils
  • Hydraulic fluids

Configuration Options

The LTU-101A series utilizes a dual tuning fork mechanism vibrated at a high frequency. When the tuning fork is covered by liquid, a frequency shift activates the relay output.

Process Connections and Materials

  • Wetted Material: Ryton® (Polyphenylene Sulfide)
  • Connections: ¾ NPT or ¾ G
  • Electrical Connection: 5-wire, shield and PP jacket

Outputs and Power

  • Output Signal: SPST Relay Output with selectable NO or NC states
  • Power Supply: 12 to 28 Vdc

Certifications and Warranty

  • CE compliance
  • 2 YEAR WARRANTY

Key Product Differences

The series is available in two primary configurations distinguished by the process connection type:

  • LTU-101A-R: Tuning fork sensor with Ryton® ¾ NPT connection.
  • LTU-101A-G-R: Tuning fork sensor with Ryton® ¾ G connection.
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