Test
Method
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.
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
Integrated
Panel PC and Software Package
The Automated Freezing Point Analyzer is a complete standalone system
featuring an integrated panel PC with an advanced software package.
The 6.4” TFT/LCD touch screen display has a resolution of 640x480
with a 262K 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 is
available with either one-stage cooling for temperatures as low as -40°C
or
two-stage cooling for temperatures as low as -85°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 -85°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.
Multiple
Configuration System
These automated sample cooling and physical property measurement systems
can be configured with one, two, three, four and six test positions
with one of five possible analytical heads at each position: cloud point,
pour point, cloud & pour point, cold filter plugging point and freezing
point. Standard and customized multiple configuration systems are readily
available.
Specifications
Conforms to the specifications of:
ASTM D1177, D1655, D2386, D5901, D5972; IP 16, IP 435, IP 528, IP 529;
ISO 3013
Measuring Temperature Range: +80°C to -100°C (+176°F to
-212°F)
Resolution: 0.06°C
Accuracy: ±0.1°C
Repeatability / Reproducibility: as per standard test methods or better
Data Storage: > 60,000 analyses
Electrical Requirements: 115V ± 15% / 60Hz
220V ± 15% / 50 to 60Hz
Dimensions
wxdxh,in.(cm)
26 x 23-3/4 x 31-1/2 (66x60x80)
Net Weight: 176.5 lbs (80kg)
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