Videolarm qmrt2-50na 用户指南

1

.  Fine focusing:

     Fixed Lens:  Loosen the set screw in the lens mount and 

     manually rotate the lens until a clear picture is achieved. Once 

     the focus is set, retighten the set screw (Figure 5).

Figure 5

Set screw

Fixed  lens

Vari-Focal Lens:  First, adjust the Magnification Lock Screw to the 

desired magnification (telephoto to wide angle).  Tighten the Lock 

Screw.  Next, adjust the Focus Lock Screw until a clear picture is 

achieved.  Tighten the Lock Screw (Figure 6).

Figure 6

Magnification lock screw

Focus lock screw

Fixed iris vari-
focal lens

1. After completing installation of the housing, use the segmented
    arms to adjust each camera to the desired viewing location
    (Figure 4). 

2. Once camera adjustments are made, place the dome back into
    position to be sure cameras are not touching the inside of the 
    dome. If any do, adjust until they are clear. 

  

Figure 4

1.  Make the proper connections to the incoming power. The RED 
     wire is POSITIVE (+), the BLACK wre is NEGATIVE (-) (For refer-
     ence purposes. Polarity is not important in this unit). The GREEN
     wire, labeled Ground, is GROUND for VAC or VDC connections. 
     NOTE: Connect green ground wire to earth ground (metal conduit,
                 metal stud, etc.)

2.  Attach the BNC connectors to the video in.

Auto Iris Lens:  
NOTE:  THE AUTO IRIS LENS IS SET AT THE FACTORY. 

FIXED AND FIXED VARI-FOCAL LENSES. There are no user 

adjustable settings on these units (Figure 7).

Figure 7

AUTO IRIS LENSES. The dip switches are factory set with AES 

off and backlight compensation on (Figure 8). The auto iris is also 

set at the factory, but an adjustment screw is included for use if 
needed. See page 10 for instructions on adjusting Auto Iris.

Auto Iris
adjustment 
screw

AES Default Off

Backlight 
Compensation 
Default On

Figure 8

BW Fixed and Vari-Focal

BW Auto Iris

NOTE: To determine which camera is used in your unit, locate the 
            serial number on the inside of the housing. Match the two 
            letter prefix with the corresponding instructions included 
            here for adjustments.