Automatic Freezing Point Analyzer with Touch Screen

Determines the temperature below which solid hydrocarbon crystals may form in aviation turbine fuels and aviation gasoline. The freezing point of an aviation fuel is the lowest temperature at which the fuel remains free of solid hydrocarbon crystals that can restrict the flow of fuel through filters if present in the fuel system of the aircraft. The temperature of the fuel in the aircraft tank normally decreases during flight depending on aircraft speed, altitude, and flight duration. The freezing point of the fuel must always be lower than the minimum operational fuel temperature.

  • KLA-5 models conform to ASTM D852, D1493, D2386, IP16, and ISO 3013 specifications
  • KLA-8 models conform to ASTM D1177 specifications
  • Stand alone system with Integrated Touch Screen Panel PC
  • Direct Cooling system eliminates the need for solvent cooling baths
  • One-stage cooling system provides temperatures as low as -45°C and a two-stage cooling system down to -80°C
  • Freezing Point measured by light pulsed emission on IR spectrum through a coaxial fiber optic with mirror 
  • Safety Features: Audible alarm and displayed messages (at the end of the analysis and in case of errors and/or malfunctions)
  • Pressure controller for 1st and 2nd stage motor compressor
  • Thermostat for 2nd stage activation
  • Thermo-switch for each cooling / heating jacket
  • Motor compressors equipped with internal overload devices

The freezing point detection system provides automated sample testing with accuracy and repeatability in accordance with ASTM D1177, D1655, D2386, D5901 and related international specification. The sample is cooled in the test chamber with constant stirring. The sophisticated dynamic measurement system emits a light pulse every 0.5°C from a coaxial fiber optic cable positioned above the test sample. The light pulse is then reflected off the mirror of the fiber optic to an optical sensor. The advanced software package analyzes the response of the light pulse. The initial appearance of crystallization is monitored by light scattering. The sample is then warmed up, and the temperature at which the hydrocarbon crystals disappear is recorded as the freezing point. All clear and transparent fuels are readily measured by the detection system, regardless of sample color.

Integrated Panel PC and Software Package – The KLA Series of
analyzers are complete standalone systems featuring an integrated
panel PC with an advanced software package. The 12” TFT/LCD touch
screen display has a resolution of 1024x768 with a 16.2 M color scheme.
All analytical parameters are graphed and displayed in real time as well
as recorded in Microsoft® Excel compatible file format. The software
monitors the operation and performance of all the analyzer components
for proper data measurement, including the solenoid valves, cooling
system, pressure sensors, and the Platinum resistance PT100 Class A
temperature probe.

Cooling System – – For various user applications, the automated freezing
point system comes standard with cooling for temperatures as low
as -95°C. The direct cooling system features integrated gas CFC free
motors compressors thus eliminating the need for a solvent cooling bath.
The direct system is capable of rapid cooling, approaching -80°C bath
temperatures in approximately 15 minutes, and utilizes less electricity
than standard cooling systems. The rapid cooling feature combined with
a consistent cooling profile system provides repeatable results with high
test reproducibility.

Conforms to the specifications of: 

  • KLA-5 models: ASTM D852, D1493, D2386, IP16, and ISO 3013
  • KLA-8 models: ASTM D1177

Temperature Range: +55 to -95°C

Resolution: 0.06°C

Accuracy: ±0.1°C

Repeatability / Reproducibility: as per standard test methods or better

Data Storage:  60,000 analyses

115V ± 15% / 60Hz
220V ± 15% / 50 to 60Hz

WxDxH,in.(cm): 26 x 23 3⁄4x31 1⁄2 (66x60x80)
Net Weight: 176.5 lbs (80kg)

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