HIKVISION DS-2TD4136-25, Быстрый старт, Страница: 14 / 32

Thermal Network Speed dome·Quick Start Guide
8
Lens Focal Length/mm 25 50 75 100
Identification Range
(Vehicle)/m
192 383 575 767
Identification Range
(Human)/m
63 125 188 250

This table is for reference only, and the actual detection range may vary
according to different camera settings, mounting condition, monitor and so
on.

When the weather is fine and the atmospheric visibility is normal, the
probability of detecting/recognizing/identifying target is 50%.

The human width is presumed as 0.5m (human width cannot exceed 0.75m),
the human height is presumed as 1.8m, and the vehicle width cannot exceed
2.3m.
3.2
Wiring
Please fully take into consideration the installation environment and position of
the speed dome when you plan for the wiring. In order to make sure the stable
power supply and signal transmission, please closely follow the rules below:

Please get familiar with the installation environment before you wiring,
including the wiring distance, wiring environment, keeping magnetic-field
interference away, etc.

Please make sure the rated voltage of the cable is higher than that the device
requires, thus guarantee the device can work normally when the voltage
instability occurs.

Please avoid the interrupt line connection

It’s recommended to use a single complete cable for the device connection; if
not, reinforce and protective measures should be taken for the wiring point
between two cables, in case the circuit aging will make the device work
abnormally.

Make sure the video cable and the signal transmission cable are well
protected. And pay attention to reinforce and protective measures during
wiring.

Make sure the cables are not too redundant or being stretched too tight.
Under normal circumstances, the wiring is completed by the professional
technicians. However, when the device cannot work normally, you can check the
above information to look for reason.