PerkinElmer DSC 4000, Installation And Hardware Manual

Page: 57 / 86

DSC 4000 Hardware . 57
Perform Indium and Zinc Runs
In performing an indium and zinc run, you can use the precrimped, preweighed samples of
indium and zinc or you can prepare your own samples for calibration. To perform the run,
follow the steps below:
1. Place the sample pan containing indium or zinc in the sample area of the sample holder
and place the reference sample pan in the reference area of the sample holder.
2. Using tweezers, cover the furnace with the inner and the outer furnace covers.
3. If not already displayed, select the Method Editor icon from the toolbar.
4. From the File menu, select
Open Method
.
The Open Method dialog box displays the methods available in the default methods
directory.
5. Select the
IndCal.d6m
method if using indium or
ZincCal.d6m
if using zinc.
6. In the Sample Info page, fill in the sample information. Enter the weight of the indium
or zinc sample and the file name under which the data file is to be saved.
7. Click the Start button in the control panel to start the run.
The run starts. When finished, the data file will be saved with the file name that you
entered in the method.
After performing the indium and zinc runs, you must perform a peak area with onset
calculation.
Perform a Peak Area with Onset Calculation
For the indium and zinc runs that you performed, a Peak Area with Onset calculation is
performed. The data file you just collected should be displayed in the Data Analysis window.
Perform an onset calculation on the data as follows:
1. Select
Onset
from the Calc menu.
The Onset Calculation dialog box appears.
2. Enter the Left Limit and the Right Limit. You can also click on the two red X’s that
appear on the curve and drag them to the desired left and right limits. The Left Limit
and the Right Limit fields will be filled in on the dialog box.
3. Click the
Calculate
button.
4. Record the Onset value for temperature calibration and H for heat flow calibration.
If you performing a heat flow calibration, you will need the H values.
5. Repeat steps 1–4 for the zinc calibration run.
Once you obtain the Onset values, you can perform a temperature calibration.