Pyrocam IV Oper
ator’s Manual
Document No. 50337-001
Rev F
2/21/2017
Page 31
APPENDIX B
– PROTECTIVE BEZEL
REMOVAL AND WINDOW INSTALLATION
The windowless protective bezel on the pyroelectric detector allows the Pyrocam to be
operated at various wavelengths of light and provides some degree of protection to the
detector. Optional A/R coated windows can be installed which provide added protection.
These windows limit the pyroelectric detector response to a specific wavelength light
range. (See APPENDIX E for a list of available windows.)
Observe the following precautions:
With the window removed, the detector is vulnerable to damage. Damage can
be caused by objects striking the detector, particles getting inside the package,
or by ESD.
Installation of a window can cause its own problems if not properly done. The
clearance between the chopper blade and the window is very small. If the
reinstalled window sits up higher than it should, the chopper blade may collide
with the window causing considerable damage to both the window and the
chopper.
All removal and installation of windows should be done in a clean room if
possible. If one is not available, use the cleanest area possible.
CAUTION
Electrostatic Discharge (ESD) can result in permanent damage to electronic
equipment. Always ground yourself by touching the system cabinet before
beginning the following procedure. We strongly recommend using an anti-static
wrist strap attached to earth ground.
STEP 1.
Remove the back cover by removing the four (4) screws as shown in Figure
Figure B.1 Remove Back Cover
