2. The image appears the distortion or the geometry distortion This kind of phenomenon reason possibly is the camera, the monitoring device geometry compensating circuit has the question or optics lens question, also has the possibility is the video frequency ties cable or the equipment characteristic impedance and the camera output impedance does not match.When appears above phenomenon, please first inspecting office with optics lens whether exceptionally and monitoring device input impedance switch establish whether in 75Ω; the end, next inspects impedance is whether 75Ω in condition of using the video frequency ties cable ;.

3. The night vision infrared waterproofing machine image is normal at daytime, turns white at night Because this phenomenon the machine use environment has the reflecting object or in the scope very small space use generally, because the infrared light reflection causes, to solve this phenomenon first to be supposed to determine whether the use environment does have the reflecting object, improves the use environment as far as possible, next inspects the machine the effective infrared distance and the actual service range is whether corresponding; Because if a station manager is away from the infrared machine to be able the infrared light excessively to be strong in the very small spatial use causes the machine image blanch.

4. Uses the automatic aperture lens image excessively to be dark First inspects the EE/AI function switch whether establishes in the AI end, next inspects the LEVEL potentiometer to adjust whether appropriately. 5. The picture appears several black vertical stroke strip or the trabecula mixes moves This kind of situation is generally the machine electric power supply output voltage ripple is too big, should strengthen the filter and use the performance good cocurrent voltage-stabilized source.

6. Chromatic distortion, leaning color Possibly is white balance switch (AWB) establishes improper, also possibly is the environment illumination condition change too is big, this time should inspect the switch to establish whether in the OFF position, should manage to improvement environment the illumination condition.

7. The infrared hemisphere series machine appears the image illumination difference at evening, the blanch or has the brilliant white aperture phenomenon. This phenomenon is the machine assembly not when causes, when assembly is photosensitive the component (photoresistance) to be away from far excessively to the hemisphere can cause the infra-red lamp to start creates the machine the degree of illumination to be at night bad incompletely; Appears the image blanch or the infrared light which because the brilliant white aperture phenomenon mainly the infrared photo tube sends out refracts through the ball cover to the lens result, solves this phenomenon is avoids letting the infrared light refract to the lens surface, usually uses the sponge circle to carry on the lens and the infrared light isolation, when assembly certainly must cover the ball the adpressed sponge circle.