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The Automated Freezing Point Analyzer fully conforms to method ASTM D2386. All dimensions are specified by D2386. The sample is agitated by a wound wire which is driven by a magnetically operated motor. The sample is poured into a receiver. The sample is automatically fed into the test tube, the start button is pressed, and the test begins. The bath is then cooled at a rate such that the sample cooling rate equals the cooling rate of the manual method.
When the test is completed, the apparatus is automatically warmed, the old sample is gravity drained from the test tube (by actuation of a solenoid valve), the fresh sample flushes the test tube and the new test is started.
Fiber optics reflect light from a C shaped mirror immersed in the test sample. When reduced light is detected, the first freezing point is determined. The sample is warmed and the fiber optics detect the melting point.
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Automated Freezing Point Schematic |
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The Automated Sample Feeder for the Freezing Point Analyzer
The Automated Sample Feeder for the automated freezing point analyzer is capable of unattended loading of 10 freezing point samples to the freezing point analyzer (above).
The freezing point analyzer is automatically flushed with the new sample and the new sample is automatically loaded in the analyzer to prevent and contamination from the previous sample.
The only operator involvement is placing 10 test samples into the auto-feeder receptacles and pressing the start button.
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Specifications are subject to change without notice. |
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