PerkinElmer Spotlight 400 Series, User Manual

Page: 84 / 120

84 . Spotlight 400 Series User’s Guide
Checking the Infrared Alignment
1. Place the slide holding the reference mirror (supplied with the imager) on the sample
stage.
2. Look at the image in the Monitor Visible window and focus the imager on the surface of
the mirror with the Z-control on the joystick.
There are usually dust particles or scratches on the surface that you can use to focus
on.
3. Lower the crystal onto the reference mirror.
4. Select
Aperture
on the Control dialog.
The IR Aperture dialog is displayed.
5. Enter 100 in the
Width
and
Height
text boxes.
6. Click
OK
.
The IR Aperture dialog closes and the aperture size is set.
7. To monitor the energy reaching the detector, in the Stage Control window display the
Scan menu and select
Monitor
.
The Monitor Visible window is used to monitor the energy reaching the detector.
The energy level measured should be 20–30% of that measured before.
8. Click
Exit
.
The Monitor Visible window returns to monitoring the visible image.