HATR Sampling Accessory User’s Guide .
17
8.
Screw down the pressure pin to apply the minimum force to the sample required to give
a good spectrum, as shown on the Live tab.
If an adequate spectrum, with a transmission level of between 40 and 80%, cannot be
achieved, the pressure should be released and a new sample prepared with an
increased or decreased amount of material.
The
Force Gauge
area of the dialog will display the force being applied. If the indicator
bar turns red, then so much force is being applied that the pressure arm and/or the
crystal is in danger of being damaged.
NOTE: The Force Gauge area is not displayed when the HATR is used in conjunction with a
Spectrum 65 spectrometer.
NOTE: If you want to compare various samples, or use quantitative techniques, ensure you use
the same amount of force each time.
Figure 12 Force Gauge indication in Spectrum software
You are now ready to collect data.
9.
Click
to obtain the sample spectrum.
The
History
settings of your sample will contain information about the HATR accessory
type.
The Spectrum Help file describes how to format, process and report your results. To
open the Help file, select
Contents
from the Help menu.
