Ullage Temperature Interface – UTI

The Ullage Temperature Interface (UTI) detector operates by accurately measuring ullage, temperature, and the oil-water interface onboard marine vessels. Here’s how each function is carried out:

Ullage Detection:

• The UTI’s ullage detector combines electronic circuits with two piezoceramic plates. When the sensor head comes into contact with oil or petroleum, it emits an ultrasonic sound.
• This sound is processed by the receiver and transmitted to the instrument unit, which emits a continuous beep. This method ensures precise measurement of the ullage level in marine environments.

Temperature Detection:

• The UTI detector uses a Platinum Resistance Temperature Detector (RTD) as its sensing component, which is located in the temperature electrode. The electrode is filled with a heat transfer compound to reduce response time.
• The RTD element’s signal is digitized by the sensor probe’s micro-controller, which also corrects and compensates for any errors. The RTD element’s characteristics are stored in the sensor memory, eliminating the need for recalibration when the sensor is replaced. The microcontroller then sends the accurate temperature data to the Display Unit for technician readings.

Interface Detection:

• The UTI detector measures the oil-water interface by detecting conductivity between an active electrode and a grounded electrode. When the sensor encounters a conductive liquid like water, it identifies its presence.
• The associated conductivity electrodes and electronic circuits then modify the signal, producing an intermittent beep. This process ensures accurate detection of the oil-water interface level.

This integrated system provides precise and reliable measurements, crucial for safe and efficient operations in marine environments.