Installation guide

Quasar CM-4251 Series User and Installation Guide
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7.5.6 IR Function
The IR Function setting activates the IR LED illuminator for use in low-light conditions or at night.
IR LED Illuminator
This setting is used in low-light conditions or at night. IR LED lights are turned On or Off, depending
on the light sensor. The default mode is Auto. Two settings are available:
 Auto – The light sensor operates automatically.
 Off – The IR light is always off.
Press <√> to confirm the new setting.
IR Mode
The day/night IRC switching mechanism operates according to the ambient light level rather than
activation of the IR LED mode. The IR Mode drop-down menu enables you to select from
Auto/On/Off/Smart modes. The default mode is Smart. Following is an explanation of the four
settings:
 Auto Mode – The camera converts from Day mode (color) to Night mode (monochrome)
automatically at nighttime or in low light conditions. When there is sufficient light, the
camera converts automatically from Night mode to Day mode.
 On – Activates IR mode (puts camera into monochrome/Night mode).
 Off – Deactivates IR mode (puts camera into color/Day mode).
 Smart – Smart mode enhances monochrome/Night mode stability when IR illumination is
dominant and keeps the camera from switching between Day and Night modes. In this
mode, the IR Cut filter is on (i.e. monochrome/Night mode) when the IR LED illuminator also
is activated. This prevents the camera from returning to color/Day mode.
Press <√> to confirm the new setting.
Figure 93: Camera Settings Screen – IR Function