Videolarm qfdpt3-50na 用户指南

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Figure 3

Twist and 
Secure

1.  Attach the incoming power and accessory wiring using the 

     color code chart below.

1          Camera Power (24 VAC)              Red
2          Camera Power (24 VAC)              Orange
3          Accessory Power (24 VAC)          Yellow
4          Accessory Power (24 VAC)          Green

1.  Access the cameras by removing the dome. Loosen the locking

     screws on the lip of the dome. DO NOT TAKE THESE SCREWS 

     OUT. Once the screws are loosened, turn the dome counter clock-

     wise until it stops, then pull the dome off (Figure 4). 

Loosen screws only, 
do not remove

Figure 4

Remove dome by twisting 
coun ter clock wise

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

NOTE: Polarity is not important in this unit. 

3.  Bring all wiring through the NPT pipe or bracket. 

4.  Mount the housing assembly to the mounting bracket and housing

     coupling.  A safety cable is included with the housing to temporar-

     ily hold it while making wiring connections.  Loop the safety cable

     over one of the set screws on the housing coupling (Figure 3).

5.  Make the proper connections to the incoming power (See Wiring 

     section below) and attach all BNC connectors to the video in.

6.  Place the fi nished wiring inside the pendant pipe. Undo the safety

     cable and twist the housing onto the housing coupling.  Secure all 

     (3) setscrews provided on the housing coupling (Figure 3 above).

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

     Vari-Focal Lens:  First, adjust the Magnifi cation Lock Screw to      
                                   the desired magnifi cation (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

Magnifi cation lock 
screw

Focus lock 
screw

Fixed iris 
vari-focal lens

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 prefi x with the corresponding instructions included 

            here for adjustments.