Automatic Freezing Point Analyzer for Oil Fuel and Petroleum Testing Instruments

The Aviation Fuel Freezing Point Tester determines the temperature at which solid hydrocarbon crystals begin to form in aviation turbine fuels and aviation gasoline. The freezing point is identified as the temperature at which the hydrocarbon crystals disappear during controlled warming after crystallization has occurred during cooling. This measurement helps establish the lowest temperature at which aviation fuel remains free of solid crystals that could restrict fuel flow through aircraft filters. The system uses a dynamic optical measurement technique, emitting light pulses at 0.5°C intervals through a coaxial fiber-optic cable and detecting reflected light from a mirror. The software analyzes light scattering to monitor crystal formation and disappearance. Suitable for clear and transparent fuels regardless of sample color, the instrument features an integrated touchscreen panel PC, automated software, direct cooling, and a constant-stirring test chamber. Audible alarms and displayed messages indicate test completion, errors, and malfunctions. Manufactured by Atico Export with a focus on precision, durability, and reliable performance for aviation fuel testing applications.

Temperature Range:

• +55°C to -95°C

Measurement Specifications:

• Resolution: 0.06°C
• Accuracy: ±0.1°C
• Repeatability and reproducibility: According to standard test methods or better
• Data storage capacity: 60,000 analyses

Measurement System:

• Automated optical freezing point detection
• Light pulse emission at 0.5°C intervals
• Coaxial fiber-optic cable with mirror
• Optical sensor for reflected light detection
• Crystal formation monitoring through light scattering
• Controlled sample cooling and warming
• Constant stirring during testing

Cooling System:

• Direct cooling system that eliminates the need for solvent cooling baths
• One-stage cooling system: Down to -45°C
• Two-stage cooling system: Down to -80°C
• Rapid cooling capability
• Integrated CFC-free motor compressors
• Pressure controller for first- and second-stage compressors
• Thermostat for second-stage activation
• Thermo-switch for each cooling and heating jacket
• Internal overload protection for motor compressors

Control and Software:

• Integrated panel PC with 12-inch TFT/LCD touchscreen
• Display resolution: 1024 × 768
• 16.2 million colors
• Real-time display and graphing of analytical parameters
• Microsoft Excel-compatible data files