Det-Tronics OPECL Infrared Hydrocarbon Gas Detector - Manual (Page 20)

18 95-8556 10.1
6. Install the Telescope Alignment Tool onto
the receiver module by inserting the captive
thumbscrews into the threaded holes on the
faceplate. See Figure 19. Ensure that the telescope
is properly attached, that the eyepiece is accessible,
and that the thumbscrews are completely tightened.
7. Slowly adjust the receiver module up/down as
required using the vertical adjustment bolts until
the telescope cross hairs are centered as close
as possible to dead center on the window of the
transmitter module. Tighten the vertical alignment
locking nuts so that no movement will occur.
VERTICAL ALIGNMENT LOCKING NUTS (2)
VERTICAL ADJUSTMENT
BOLTS WITH LOCKING NUTS (2)
HORIZONTAL ADJUSTMENT
BOLTS WITH LOCKING NUTS (2)
B2302
U-BOLT NUTS (2)*
U-BOLT NUTS (2)*
OPECL MOUNTING BOLT*
OPECL MOUNTING BOLT*
*TORQUE TO 20 FT-LBS
Figure 18—OPECL Mounting and Alignment Hardware (Transmitter Module Shown)
TEMPORARILY SLIDE BROW TOWARD
BACK OF MODULE HOUSING
TELESCOPE ALIGNMENT TOOL
CAPTIVE SCREWS (2)
D2303
TELESCOPE ALIGNMENT SCREW
(VERTICAL)
TELESCOPE ALIGNMENT SCREW
(HORIZONTAL)
Figure 19— OPECL with Telescope Alignment Tool Installed (Transmitter Module Shown)