Guidelines When Using the LNCS

 

Once the LNCS is properly installed, the system conditioned and calibrated, the following guidelines should be maintained during standard experimental operation.

NOTE: Please make sure that you run your experiments with the same gas that you used to calibrate the system. For example, if you calibrate using nitrogen, make your runs with nitrogen.

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WARNING:  Do not exceed 100C with the LNCS cooling head installed and the LNCS power off.  Serious damage to the cooling head could occur.

CAUTION:  We recommend that you do not use the LNCS when running isothermal experiments above 400C.  The life of the DSC cell heating element can be shortened if the LNCS is used at high temperatures for extended periods.

NOTE:  Once the cooling flange reaches operating temperature, it condenses any moisture present.  If the initial moisture level is too high, or if the atmosphere moisture subsequently entering the heat exchanger enclosure is not minimized, then artifacts can be observed in the heat flow signals.  Typically, but not exclusively, the artifacts are observed between 0 and 100C, which increase in intensity over time.

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