About the
moving mirror
velocity
When you change detectors, OMNIC automatically resets the default
spectral range in the Experiment Setup dialog box. Be sure to check
the range and set the velocity to a value that is appropriate. A drop-
down list box shows the velocities available for the detector
installed.
To specify the velocity and spectral range, use the Velocity and
Spectral Range parameters on the Bench tab of the Experiment Setup
dialog box. To specify the resolution, use the Resolution parameter
on the Bench tab.
For DTGS detectors, set Velocity to 0.63, or lower if you are
analyzing a low-throughput sample. Higher velocities decrease the
detector’s sensitivity and increase the noise in the spectrum. (This is
not a concern for MCT-A detectors; you can generally obtain good
results using any available velocity setting.)
DC operation
In the U.S.A., a power pack accessory allows you to operate the
spectrometer for up to 45 minutes using DC power. Also, an adapter is
available that allows you to operate the spectrometer using a vehicle battery.
31.5 cm
(12.4 in)
15.5 cm
(6.1 in)
22.1 cm
(8.7 in)
141 mm
(4.8 in)
49 mm
(1.9 in)
73 mm
(2.9 in)
Typical DC power pack and vehicle battery adapter
Thermo Electron Corporation
58
Summary of Contents for Nicolet 380
Page 1: ......
Page 6: ...iv ...
Page 135: ...x X axis 55 XT KBr 55 y Y axis 37 69 72 84 z zoom 85 Nicolet 380 User s Guide 129 ...
