Focusing Camera Lens; Adjusting The Field Of View; Changing Camera Lens; Figure 13: Focusing The Camera - Gatekeeper Systems Digital Smart Recorder NiTRO 900 Manual

Focusing Camera Lens

Focusing Camera Lens. . . . Focusing Camera Lens Focusing Camera Lens
Connect camera harness input to the back of the NiTRO™ 900 and power up NiTRO™ 900 system.
Remove the Polycarbonate Dome
cover and outer dome.
Connect the' second video cable'
(CAMWHAVIDEOCABLE) to the pin connector on the
camera board and then to the video input on a
monitor a live video image will display on screen to
allow for easy lens adjustment.
•
Loosen the small set screw that is located on the base of the lens.
•
Turn the lens slightly clockwise or counter clockwise until desired focus is reached.
•
Tighten set screw to lock focus in place.
Be sure to test the focus of the camera with the Polycarbonate Dome in front of the lens before making final
adjustment. Some cameras may be slightly out of focus when the Polycarbonate cover is put back on. Should
this occur, simply loosen the set screw on the lens, turn the lens 1/8 of a turn counter clockwise and tighten
screw.

Adjusting the Field of View. . . .

Adjusting the Field of View Adjusting the Field of View Adjusting the Field of View
Adjust field of view by loosening the bracket mounting screws and rotating the camera mount bracket. Ensure limited
ceiling is seen in camera image.
It is best to attach a TV monitor to the NiTRO™ 900 to capture the desired field of view of the camera, at the
same time the lens focus can be checked (see Lens Setup under Configuration, Basic Menu).

Changing Camera Lens

Changing Camera Lens. . . .
Changing Camera Lens Changing Camera Lens
Remove Outer Dome Cover and Polycarbonate Dome by removing the two hex screws with the supplied Hex Key.
Remove lens by loosening set screw, then turning
lens counter clockwise, replace with new lens
(Figure 14).
Focus Camera as per 'Focusing Camera Lens'
instruction page 22.
-18-
Figure Fig ure 13 13: : : : Focusing The Camera Focusing The Camera. . . .
Fig Fig ure ure 13 13 Focusing The Camera Focusing The Camera
Figure Figure 14 Figure Figure 14 14 14: : : : Camera Sea Camera Seat Position. Camera Sea Camera Sea t Position. t Position. t Position.