When replacing a UTI sensor or PCB instrument, identifying the correct model is the first and most important step. Although many UTI systems perform the same basic function—measuring cargo tank ullage, temperature and interface—they are not always interchangeable.

Ordering the correct compatible replacement helps ensure a straightforward installation and reliable operation.

This guide explains how to identify the UTI system installed on your vessel before requesting a quotation.

A UTI (Ullage, Temperature and Interface) system is portable cargo tank gauging equipment commonly used on:

• Oil tankers

• Chemical tankers

• Bunker vessels

The equipment measures:

• Ullage

• Cargo temperature

• Water interface

Maintaining accurate UTI equipment helps ensure safe and efficient cargo operations.

Most vessels already provide several ways to identify the installed UTI system.

Check:

• Portable UTI instrument

• Sensor or probe assembly

• Equipment identification labels

• Vessel spare parts list

• Previous maintenance records

• Equipment manuals

The manufacturer or model number is usually marked on the equipment.

Common UTI systems include:

• GTEX

• MK3

• MMC

• TFC-02

• Marsen

• Seahover

Each uses its own compatible sensors and PCB instruments.

If the identification label is damaged or missing, you can still identify the correct replacement.

Helpful information includes:

• Photos of the sensor

• Photos of the PCB instrument

• Cable connector details

• Overall sensor length

• Vessel maintenance records

Clear photographs are often enough to determine the correct compatible replacement.

If you are unsure which UTI system is installed on your vessel, contact UTISpares.

Send us photographs of your sensor or PCB instrument together with any visible markings. We will help identify the correct compatible replacement before you order.