|KLA-5 Automatic Freezing Point System|
Determines the temperature below which solid hydrocarbon crystals form in aviation fuels. The sample is cooled with continuous stirring in a Dewar-type sample tube until crystals appear.
Features and Benefits
Conforms to ASTM D2386 and related specifications
Direct cooling system eliminates the need for solvent cooling baths
One-stage cooling system provides temperatures as low as 35°C and a two-stage cooling system down to 70°C
Single start/stop push button makes system simple to use
Minimal installation required to set-up software and instrumentation
Click on the image to view a larger photo of the instrument.
Automatic Freezing Point System
Freezing Point DetectionThe freezing point detection system provides automated sample testing with the accuracy and repeatability in accordance with ASTM D2386 and related international test methods. The sample is cooled in the test chamber with constantly 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 silvered-bottom test jar 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.
Advanced Software PackageThe Windows®-based software package can control either a stand-alone system or provides multiple analyzer networking with a single network control station. All analytical parameters are graphed and displayed in real-time as well as recorded in Microsoft® Excel file format. The software monitors the operation and performance of all the analyzer components for proper data measurement, including the solenoid valves, cooling system, other moving parts, as well as the Pt-100 temperature probes and the pressure sensors. The calibration curves for each probes and sensors are displayed individually and saved to the hard disk with date and time of test.
Cooling SystemFor various user applications, the automated freezing point system is available with either one-stage cooling for temperatures as low as 35°C or two-stage cooling for temperatures as low as 70°C. The direct cooling system requires no solvent cooling bath and thus eliminates operator exposure to solvents used in standard cooling systems. The direct system is capable of rapid cooling, approaching 70°C bath temperatures in approximately 15 minutes, and utilizes less electricity than in standard cooling systems. The rapid cooling feature combined with a consistent cooling profile system provides repeatable results with high test reproducibility.
Multiple Configuration SystemThese automated sample cooling and physical property measurement systems can be configured with up to six test positions with one of five possible test heads at each position: cloud point, pour point, cloud & pour point, freezing point, and cold filter plugging point. Standard and customized multiple configuration systems are readily available. Please inquire with Koehler Customer Service about product specifications and ordering information.
PC Configuration Operation of the software package requires the use of a PC, which should be ordered separately. Please inquire with Koehler Customer Service if assistance is needed in procuring a PC. The PC should have the following minimum requirements: Pentium III 800 MHz processor, 128 MB RAM, 2 GB hard drive, CD-ROM, Windows® 95/98 operating system, Microsoft® Excel, Windows® keyboard, monitor, mouse, graphic and video cards.
Conforms to the freezing point specifications of:
ASTM D2386; IP 16; ISO 3013
Internal built-in direct refrigeration system
One- or two-stage cooling system
Cord Cable without plug
115V 60Hz, Single Phase
220V 50Hz, Single Phase
(for the KLA-5 system)
Net Weight: 132 lbs (60kg)
order a multiple configuration system (any combination