Table of Contents
Advertisement
48 . Spotlight 200 User's Guide
NOTE: If your Spotlight 200 system is supplied with a Frontier or Spectrum 400
FT-IR/FT-NIR dual-range spectrometer and you are using a large aperture in the
near infrared, the software may report an overload error when monitoring an IR
function or collecting data. To resolve this, fit a 32%T attenuator to the external
beam window of the spectrometer. See
Spectrometer
This attenuator should be kept in place during data acquisition.
8. Adjust the Illumination control in the Setup Microscope Basic tab to give the required
level of illumination.
OR
Click Auto in the Illumination section in the Setup Microscope Basic tab.
OR
Click the
button in the Camera View toolbar.
Fitting an Attenuator to the Spectrometer
If your Spotlight 200 system is supplied with a Frontier or Spectrum 400 FT-IR/FT-NIR
dual-range spectrometer, you will be provided with an Attenuator kit (part number
L1160560) containing 1%T, 4%T, 6%T, 14%T and 32%T attenuators. The attenuators
attach to the external beam window of the spectrometer magnetically.
When examining samples in the visible range on systems fitted with an MCT detector, use of
the 1%T attenuator is recommended if the image appears with a red tint. However, the
attenuator should be removed during data acquisition.
Use of the 32%T attenuator is recommended if an overload error message is displayed when
using a large aperture. This attenuator should be kept in place during data acquisition.
Figure 15 KBr Window with 14%T Attenuator
Setting Scan Parameters
1. Select Instrument from the Setup menu.
2. Click the Setup Instrument Basic tab.
3. Click the Resolution setting to display the drop-down list.
For mid-infrared measurements, it is recommended that the spectral resolution is set to
−1
8 cm
; for near infrared, this value should be set to either 8 or 16 cm
, on page 48, for details.
Fitting an Attenuator to the
−1
.
Advertisement
Table of Contents
