FLIR CB-5222 User And Installation Manual page 88

Configuration and Operation
Caution:
Using a slow shutter speed causes moving objects to be blurred.
Attention:
L'utilisation de vitesses d'obturation faibles peut rendre les objets en mouvement flous.
To set the Exposure mode
From the Auto Mode Max Gain drop-down list, set the maximum gain in 3db steps from
Off to 54dB. Increasing the gain lightens dark pictures resulting from low-level lighting. The
default setting is 36dB.
Caution:
The noise level might increase if the gain level is set too high in low-light scenes.
Attention:
Le niveau de bruit peut augmenter si le niveau de gain est trop élevé dans les scènes à faible
luminosité.
Select one of the following modes:

Auto Iris– This mode is recommended to be used in indoor environments involving
mixed lighting sources where the main source is fluorescent lighting combined with
natural light that enters the scene through windows and other exposed areas.
This mode completely opens the shutter. The exposure priority is given to the iris.
Shutter speed and AGC circuit function automatically in cooperating with the iris to
achieve a consistent exposure output.
From the Min Shutter Speed drop-down list, select one of the following shutter speed
options. The default setting is 1/12 (PAL) or 1/15 (NTSC).

Auto Shutter – This is the default exposure mode of the camera. It is recommended for
the following scenarios: outdoor environments or indoor environments with unified
lighting (either with constant or changeable lighting conditions), as long as the main light
source is fluorescent lighting.
Select this mode so that the camera's shutter speed works automatically to achieve a
consistent video output level. You can select a suitable shutter speed according to the
environmental luminance.
From the Min Shutter Speed drop-down list, select one of the following shutter speed
options. The shutter speed range is from 1/12 to 1/425 sec (PAL) to 1/15 to 1/500 sec
(NTSC). The default setting is 1/12 (PAL) or 1/15 (NTSC).
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Auto Iris
Min Shutter Speed
PAL NTSC
1/25 1/30
1/12 1/15
CB-5222 User and Installation Guide April 25, 2017