About the TEC Module
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Density measurements at specific temperatures are required for certain applications. The AccuPyc II Thermo Electric Cooling (TEC) Module maintains an accurate temperature control during analysis using the principle of Peltier cooling.
TEC Modules, also known as Peltier coolers, are solid-state heat pumps that utilize the Peltier effect to move heat. By passing a current through the TEC Module, heat is transferred from one side of the module to the other, typically producing a heat differential of approximately 40° C.
The transferred heat is then removed from the system through the combination of a heat sink and fan, cooling the system to maintain a set temperature for accurate analysis.
TEC systems feature:
• fast dynamic response
• long-life
• no moving parts
• no use of refrigerants or circulated liquids / antifreeze
Asphalt Density Application
The AccuPyc II TEC Module can measure asphalt density using disposable cups to limit cross-contamination of samples. To show cup properties and asphalt options, go to Options > Option Presentation and enable Show Cup Properties and Show Asphalt Options.
This solution can be closely correlated (< 0.15% difference) to results obtained with ASTM Test Method D70-09. The AccuPyc asphalt density measurement is completed much faster than the ASTM method while virtually eliminating operator error. The Peltier thermoelectric cooling control (15 to 36 °C) provides stability for handling of samples.
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