Operating Instructions

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Before using this product
Face matching function
Face recognition refers to a function that uses a connected camera supporting this function to detect facial fea-
tures of people and matches them against similar facial features recorded earlier or contained in live images.
The matching accuracy varies depending on installation, settings and adjustment of the camera, ambient envi-
ronment and object. Matching of facial features may therefore not work under the following conditions:
 • Whenilluminationisnotuniform,forexample,outdoors
 • Whenthefaceispartiallyconcealed(mask,sunglasses,helmet,etc.)
 • Whenthefaceisnotfacingthecamera
 • Whenasubjectismovingveryfast
 • Undertheinfluenceofstrongexternallight(suchastheheadlightsofacar,risingsunlightorsettingsun-
light)
* Configure the settings of the camera supporting this function before attempting to use the face matching
function.
Motion detection (VMD) function
The motion detection (VMD) function of cameras detects motions referring to changes of luminance (brightness)
in areas set in advance.
The motion detection function will not effectively work in the following situations or may sometimes be malfunc-
tioning.
 • 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outdoors.
 • Whenlightsuchassunlightorcarheadlightcomesfromoutside
 • Whenafluorescentlampflickers
 • Whenasubjecthasdepth
When configuring the motion detection settings, check the function performance both in daytime and at night
after appropriately 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. Refer to the operating instructions of the camera for further information.
Time display of recorded images
When displaying recorded images, the displayed date & time may sometimes skips. This is not malfunction.
The displayed date & time on the monitor and the recorder may sometimes not be exactly the same. This is also
not malfunction.
Response to the mouse operations
While this recorder is processing multiple operations at the same time, the response to the operations from the
connected mouse may temporarily become slow. This is not malfunction.