TA Instruments DSC Q Series, Руководство по началу работы, Страница: 48 / 76

DSC Q Series Getting Started Guide
48
Calibrating the DSC
To obtain accurate experimental results you should calibrate the DSC cell when you first install it. For the best
results, you should recalibrate periodically. The calibration procedures that you need to perform will vary
depending on the instrument model and heat flow selection. These experiments will be performed using the
instrument control software. See the chart below for a general guide to types of calibration. For details on how
to perform that calibration, refer to the online documentation accessed through the instrument control software.
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.
Types of Calibration for the DSC
DSC Model Tzero* Cell Temperature Baseline Pressure Heat Capacity**
Constant
MDSC Q2000
Q1000
Auto Q20/Q20/Q10
✔ ✔ ✔
Q200/Q100
Heat Flow T4
✔ ✔ ✔ ✔
Heat Flow T1
✔ ✔ ✔
Q2000/Q1000
with standard cell
Heat Flow T4P
✔ ✔ ✔ ✔ ✔
Heat Flow T4
✔ ✔ ✔ ✔ ✔
Heat Flow T1
✔ ✔ ✔
DSC
with pressure cell
✔ ✔ ✔ ✔
* Tzero™ describes proprietary technology invented by Robert Danley of TA Instruments—Waters LLC and
patented by TA Instruments—Waters LLC (U.S. Patent No. 6,431,747).
** Heat Capacity calibration is NOT performed in cal mode and is not required except when making absolute
measurements of heat capacity.
Perform calibration runs that encompass the temperature range you plan to use in your experiments. We
recommend calibration over the widest temperature range, if your subsequent experiments cover a wider range,
you may wish to recalibrate.