Icon Scientific Fz Online Freezing Point Analyzer

The freezing point gives the temperature at which crystals appear at low temperature, particularly in jet fuel. The Fz analyzer cools the sample with a patented, vacuum-insulated cryo-cooler; a 90-degree optical arrangement detects crystal formation. The same platform can be adapted to also measure low-temperature cloud and pour points.

Freeze Point (Fz) features

• With normal plant cooling water, it reaches -100 °C in about 10 minutes; no external chiller is needed.
• Air-gap light guides and thermal break connections reduce icing problems.
• The design is defined so as to need no maintenance over the analyzer's expected life.
• Operates continuously in line; can be adapted to new fuels such as SAF.
• Used for terminal quality control and to reduce additive use at refineries.

Choosing Freeze Point (Fz)

At air terminals, final quality control before fuel is delivered to aircraft is supported by continuous in-line measurement. Details such as sample quantity and output format are in the manufacturer's brochure and are clarified at the project stage.

Tetra prepares the cooling water connection and sample line, commissions the instrument and connects output signals to the plant system. Periodic checks of the cryo-cooler and optical arrangement and technical support are provided locally.