Справочник Пользователя для Pelco IP3701H-2X

 

C2941M (8/07)

13

 

Set the lens mode selector switch to AIV. Switch the ESC and AGC OFF. Refer to the lens instructions and 
adjust the lens for the optimum picture (video output level of 1 Vp-p). To focus, completely open the iris by 
covering the lens with a suitable neutral density (ND*) filter. If the viewed scene is 6.5 ft (2 m) away or 
farther, set the lens focus to infinity (far). Use the back focus adjustment ring (refer to 

 

required. Set the AGC switch to ON, as required. Most scenes benefit from AGC.

 

Set the lens mode selector switch to AID (default setting). Set the ESC and AGC switches to OFF. Use an 
appropriate screwdriver to completely turn the lens level potentiometer (refer to Figure 1) clockwise. Next, 
slowly adjust the potentiometer counterclockwise until the optimum picture is obtained (video output level 
of 1 Vp-p). To focus, completely open the iris by covering the lens with a suitable neutral density (ND*) 
filter. Select the scene to be viewed. If the viewed scene is 6.5 ft (2 m) away or more, set the lens focus to 
infinity (far). Use the back focus adjustment ring (refer to 

 

the selected scene. Remove the ND filter and set the lens focus as required. When finished, set the ESC 
and AGC switches to ON.

 

Set the ESC and AGC switches to ON (default settings). To focus, set the lens focus to infinity and view an 
image more than 6.5 ft (2 m) away. Focus the image with the back focus adjustment ring (refer to 

 

 

Set the ESC and AGC switches to ON (default settings). To focus, open the iris fully and set the lens focus 
to infinity. View an image more than 6.5 ft (2 m) away. Focus the image with the back focus adjustment 
ring (refer to 

 

best picture quality. The largest aperture gives the best light sensitivity; the smaller the aperture, the 
greater the depth of field.

 

Set the lens focus to infinity (far) and completely open the iris by covering the lens with a suitable neutral 
density (ND*) filter. Zoom out to the widest field of vision and view a distant object. Adjust the back focus 
adjustment ring until the object is in focus (refer to 

 

completely in and adjust the lens focus until the object is again focused. Repeat these steps until the full 
zoom range may be viewed with the minimum loss of focus.

 

For best results outdoors, use an ND3 filter.