Troubleshooting - CBC Ganz ZT-WD Series Instruction Manual

High performance thermal cameras
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Trouble Shooting
If you have trouble setting up or operating the camera, refer to the following.
Video not displayed on monitor
If the camera will not produce an image, check the video connection at the camera. If the connectors to
be properly engaged but the camera does not produce an image, ensure that power has been applied to
the camera properly and the fuse is OK.
If the camera still does not display an image, have an authorized service representative make the
appropriate repairs.
Noisy image
A noisy image is usually attributed to a cable problem (too short or inferior quality) or the cable is picking
up electromagnetic interference (EMI) from another device. Although coax cable has built-in losses,
the longer and smaller the cable is, the worse the losses become; and the higher the signal frequency,
the more pronounced the losses. This is one of the most common and unnecessary problems currently
plaguing video security systems.
Image out of focus
The camera systems have a fixed-focus lens (focused at infinity at the factory) and the lens focus is not
field-controllable. Each camera has a minimum focus distance, as listed in the specifications section. An
out-of-focus object may be too close to the camera within the minimum focus distance.
Performance varies with time of day
You may observe differences in the way the camera performs at different times of the day, due to the
cycle of the sun. That the camera produces an image based on temperature differences. At certain
times of the day, such as just before dawn, the objects in the image scene may all be roughly the same
temperature, compared to other times of the day.
Note: Under conditions such as just before dawn when it appears the camera has low contrast due to
many objects at roughly the same temperature (typically inanimate objects), a person or an animal
walking through the scene during this time will be quite noticeable and cause the
AGC to produce a high-contrast image.
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