What is UTI ? Recommendations for commonly used UTI products

UTI stands for Ullage-Temperature-Interface detector, a precision portable instrument widely used in the petroleum, marine, and tank-storage industries. It is most commonly known as an oil-water interface detector.

This device integrates three core measurement functions in one compact unit:

Ullage: Measures the empty space from the tank’s top to the liquid surface, used to calculate liquid volume.
Temperature: Records the temperature of the liquid at different depths for accurate volume and mass correction.
Interface: Detects the exact boundary layer between oil and water, which is critical for quality control and pollution prevention.

Key Purpose & Applications

The UTI detector is primarily designed to locate and measure the oil-water interface in storage tanks, cargo tanks, and process vessels. It helps operators:

Accurately quantify free water at the bottom of oil tanks
Ensure product purity by avoiding water contamination
Support safe and compliant cargo transfer and custody transfer
Assist in tank cleaning and maintenance operations

Structure

A typical UTI system consists of a sensing probe, a marked measuring tape, an electronic control and display unit, and a winding drum. The probe detects changes in conductivity or ultrasonic signals to distinguish oil, water, and liquid levels, then transmits real-time data to the display.

In short, UTI is an essential industrial gauge that combines ullage, temperature, and interface detection — with its most vital role being oil-water interface measurement.

Recommendations for commonly used UTI products

· Honeywell HERMetic UTImeter Gtex 2000

· HEEID UTI-DSM

· Tanktech(TKT)  T2000-TFC-02

· Tanktech(TKT)  T2000-TFC-01