Speco Technologies SIPMPDVFH, SIPMPBVFH instruction manual mode to Night

	mode to Night		switches into night mode. Increasing it will make
	mode		camera switch to night mode at a darker illumination
			level.
	Switch from Night		This value controls the level of light where camera
	mode into Day		switches into Day mode. Increasing it will make
			camera switch to night mode at a darker illumination
	Mode
			level.
			This bar shows the illumination level at which cameras go
	Brightness Meter		to night or day mode (Blue / Red bars), and shows the
	Bar		current detected illumination level (Green bars). Use this
			bar to fine tune the day/Night switch timing.
	Get Current		Clicking this button will refresh the illumination level
			reading from the camera sensor. The larger the number, the
	Exposure Level
			darker the environment.
Click the		[Apply] button to confirm the settings or click the		[Reset] button to
re-enter the parameters.

How it works

An important feature in this screen is that user may now customize the illumination level to perform day/night mode switches.

On the horizontal brightness meter shown here, there are three colored bars. The bar represents light amplifying levels 0 to 100, where 0 is Brightest and 100 is darkest. 0 means no digital amplification of incoming light signals, which means that the environment is bright enough for the camera to get good quality images.

When the environment gets darker, as when the sun is setting over the horizon, the environmental gets darker. To maintain proper image brightness level, the camera will attempt to digitally amplify the light signals received by the sensor. The Blue one is the level at which camera will go into night mode, and remove Mechanical IR cut filter and open IR LED if available. The red one indicates the illumination level at which the camera will consider bright enough to go back to day (Color) mode.

The Red bar should always be to the left of the blue bar. As camera go from day to night mode, more lights are allowed inside (the IR filter is removed), so the detected light signal level will increase. If the night-to-day illumination level is too close to the day-to-night level, the camera will immediately consider it bright enough to go back to day mode, which will result in continuous day/night switching.

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