After you turn on the spectrometer, let it stabilize for at least
15 minutes (one hour for best results) before collecting spectra.
See “Turning on the spectrometer power” in the “Spectrometer
Basics” chapter if you need more information.
4. Turn on the printer and then the computer.
Turn on the printer and computer as explained in the
documentation that came with those components.
Reverse the order given in the preceding procedure when you turn
off system components:
1. Turn off the computer.
2. Turn off the printer.
3. Turn off the spectrometer.
4. Turn off the accessories.
Cooling the detector
Some detectors, such as an MCT or InSb detector, require cooling
with liquid nitrogen. In Spectrometer Help Topics view “Cooling a
detector” in “Setting up experiments” for instructions.
Warning
Liquid nitrogen is extremely cold and therefore potentially
hazardous. Avoid contact with skin. Wear protective clothing and
follow standard laboratory safety practices to prevent injury. Liquid
nitrogen can be hazardous if handled in an insufficiently ventilated
room.
S
After you fill the detector dewar with liquid nitrogen (the dewar
holds about 750 mL), allow the detector to cool at least 20 minutes
before collecting spectra.
Nicolet FT-IR User’s Guide 19
