Videolarm qodc2-50na Betriebsanweisung

Flickerless Mode

1

Setting this switch to "On" and 
switch 3 (MIRIS) to "Off" will 
help to reduce the fl icker in 
fl uorescent lights

Helps prevent an object from 
being washed out when the 
object is directly in front of a 
light source. 

When the switch is in the 
on position the auto iris lens 
controls the amount of light on 
the chip.  If in the off position 
the light level is controlled 
electronically.

Used to help improve the 
color quality of the camera 
picture under different light-
ing conditions. The Fac-
tory Default is Switch 7 "ON", 
switches 6 and 8 "OFF". 
NOTE: ANY ADJUSTMENTS 
TO THESE SETTINGS 
SHOULD ONLY BE MADE 
BY A QUALIFIED CCTV 
TECHNICIAN
See examples below to help 
with any adjustments.  

Helps balance the contrast in 

the picture.  

BLC (Back Light

Compensation)

MIRIS (Manual/

Electronic Iris

GAMMA

AGCMAX 

(auto/gain control)

(Automatic White 

Balance Control)

AW2

AW3

AEREF

AEME

2

3

4

5

6

9

10

AW1

7

8

This sets the electronic 
convergence level. In the "off" 
position the level is set to 100 
IRE; in the "on" position the 
user can set the level. Not 
used with auto Iris

With this switch in the "On" 
position users can manually 
adjust the shutter speed and 
gain using other switches  See 
the tables below for specifi c 
settings

Flickerless (1)    BLC (2)     MIRIS (3)     Shutter Speed

     On                  Off               Off              1/100 Sec.

     Off                   On              Off              1/60 Sec.

MIRIS (3)     AEREF (9)      AGCMAX (5)      Gain

   On                 Off                   Off                0dB

   On                 On                   Off                6dB

   On                 Off                   On                12dB

   On                 On                   On                18dB

Allows day/night cameras to 
switch to b/w in low light conditions, 
also helps with low light conditions 
in standard and hi-res cameras

NOTE:  This hi-res color camera uses a 1/4" chip and a 3-6mm 

             auto iris lens. It is comparable to a 1/3" chip using a 

             4-9mm auto iris lens.

The operational settings are defi ned by four dip switches located on 

the side of the PC Board (Figure 9 and 10). Moving the switches to 

the UP position will activate specifi c settings. Refer to the chart below. 

Figure 9

Auto Iris 
Adjustment 
Screw

Dip Switches

Figure 10

Dip Switch                  UP                                DOWN

  1 

  (Iris)                     Auto Iris On               Position for Fixed Lens

  2 

  (Flickerless)        Shutter speed                    Normal

                              fi xed at 1/100 sec.                  

  3 (Back Light       ON                                    Normal

  Compensation

  4 

  (Synch Mode)      Internal Synch               Line Lock Mode

FIXED AND FIXED VARI-FOCAL LENSES. There are no user adjust-
able settings on these units (Figure 11)
AUTO IRIS LENSES: The auto iris can be adjusted if needed. See the 
Troubleshooting section for instructions.

Figure 11

Auto Iris
adjustment 
screw