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Before using this product
Video Motion Detection (VMD) function
The VMD function of this product detects motions referring to changes of brightness in the areas set in
advance.
The VMD function will not effectively work in the following situations or may sometimes be malfunctioning.
• When there is a very little difference in luminance (brightness) between a background and a subject
• When brightness of images is low such as at night
• When a subject moves very slow
• When a subject is very small
• When the amount of rays of light incidence changes frequently such as at a window or outdoor
• When light such as sunlight or car headlight comes from outside
• When a fluorescent lamp flickers
• When a subject has depth
When configuring the VMD settings, check the function performance both in daytime and at night after appro-
priately configuring the area settings and the sensitivity settings according to the camera installation conditions
and possible movement of subjects. When the detection function does not work or false detection occurs, use
a sensor separately.
Time display of recorded images
When displaying recorded images, the displayed time and date may sometimes skips. This is not malfunction.
The displayed time and date on the monitor and the recorder may sometimes not be exactly the same. This is
also not malfunction.
Black screen displayed when playing recorded images
In the following cases, a black screen may be displayed during playing recorded images. However, this is not
malfunction.
• When changing camera channels or screen patterns during playback or pausing
• When skipping/reverse skipping during playback
• When fast forwarding/reverse fast forwarding during playback
• When the [GO TO LAST] button is pressed during playback on a multiscreen
• When going to the next recording event list by fast forwarding/reverse fast forwarding or skipping/reverse
skipping during playback
• When playback operation is affected by another operation (such as when receiving multiple alarms sequen
-
tially or when copying is being performed simultaneously)
