Level Plus Model USTD II Magnetostrictive Liquid-Level Transmitter

Brand: Temposonics an Amphenol Company

The Level Plus Model USTD II level transmitter is designed for use in Underground Storage Tanks (UST). 

The most common UST application is containing automotive fuels at gas stations. The Model USTD II transmitter provides 3-in-1 measurement using one process opening for product level, interface level, and temperature measurements. 

Once the transmitter is installed and calibrated, there is no requirement for scheduled maintenance or recalibration. The Model USTD II transmitter uses a proprietary ASCII based protocol referred to as Direct Digital Access (DDA) for communication. 

The DDA output utilizes a 4-wire, multi-drop power and data bus RS-485 network. Utilizing the data bus network eliminates requirements for individual cable runs to and from each tank. 

The RS-485 network also allows for longer cable runs for more tanks and greater distances.

Specifications

Accuracy

  • ± 0.28° C (± 0.5° F)

Approvals & Certifications

  • ISO 9001
  • ATEX Ex
  • CE
  • FM
  • IEC 61000-4-5, 61000-4-4

Electrical Connectors

  • 5-Pin M12 Connector

Electrical Protection

  • Lightning Protection

Environmental Protection

  • Intrinsically Safe
  • IP68

Humidity

  • 0 to 100 % Relative Humidity, Non-Condensing

Length

  • Rigid Pipe: 29 to 149” (737 to 3,785 mm)

Mounting

  • External Mount
  • Flange Mount
  • Internal Mount

Non-Linearity

  • ± 0.02” (0.5 mm)

Operating Temperature

  • Electronics: -40° to 71° C (-40° to 160° F)
  • Sensing Element: -40° to 125° C (-40° to 257° F)
  • Temperature Element: -40° to 105° C (-40° to 221° F)

Pressure Range

  • bar: 0 to 4.1
  • kPa: 0 to 413.7
  • psi: 0 to 60
  • Vessel Pressure psi: 60 (kPa: 413.7, bar: 4)

Repeatability

  • 0.001 % of Full Scale
  • 0.015” (0.381 mm)

Voltage

  • Input Voltage: 10.5-30.1 Vdc
  • Input Voltage: 28 Vdc, Max.

Wetted Materials

  • 316L Stainless Steel

Wiring

  • 4-Wire, Plus Earth Ground

  • Fuel & Solvents
  • Sumps
  • Underground Fuel Storage Tanks (UST)
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