SecurityWorldMarket

05/12/2017

Dahua cameras withstand tough testing

Hangzhou, China

A Dahua dome camera DHI-SD6AE230F-HNI that operates smoothly on Mount Everest 5000m above sea level.

In order to achieve robust performance in the environment for which they were designed, Dahua’s products have undergone rigorous tests to meet very tough standards which in most cases exceed the normal industry practice and the datasheet specifications.

In order to achieve robust performance in the environment for which they were designed, Dahua’s products have undergone rigorous tests to meet very tough standards which in most cases exceed the normal industry practice and the datasheet specifications. The purpose is to provide sufficient margins to ensure the product provides the utmost reliability expected of Dahua products when performing in the field.

Dahua video surveillance solutions, such as Smart City and Intelligent Building, are widely applied in many countries worldwide. Dahua cameras may be exposed to all kinds of physical impact.  As shown by the test results, Dahua vandal proof cameras, withstand the challenges in these scenarios, thereby reducing the cost of maintenance.

Dahua outdoor cameras have passed IK10 test (standard IEC62262) in which a steel ball weighing 5 kg is dropped from 40 cm above generating 20 joules of impact energy on five separated spots on every exposed surface (including 3 impacts to the lens). For indoor cameras, the test level ranges from IK06 to IK10 (both standard IEC62262), which covers most possible scenarios. 

In some cases, Dahua cameras are required to work somewhere with high frequency vibration.  All cameras are tested against a frequency of up to 200 Hz with 1G acceleration from X, Y, Z axes for 4.5 hours, ensuring they can function as usual. When it comes to hanging dome cameras, in order to make sure they won’t fall down in even some extreme cases, an extra test which triples the vibration rate is conducted whereby Dahua’s cameras can endure several times longer than the standard average.

Inevitably, Dahua cameras are sometimes installed in extreme heat and freezing environments. Cold and heat will cause shrinkage, which may very likely to shorten a camera’s lifespan. In addition to long hours of usage, the cameras are also designed to enjoy long working lifespans against these tough temperatures, saving the costs of repairing and replacing. One case as shown above is a Dahua dome camera DHI-SD6AE230F-HNI that operates smoothly on Mount Everest 5000m above sea level.

As all Dahua cameras, according to the company, have been through Low and High Temperature continuous operation test for no less than 16 hours (standard IEC62599-1) with spec temperature to guarantee product performance. Besides, all Dahua cameras have gone through intensified HALT (High Accelerated Life Test) and ALT (Accelerated Life Test) tests, to ensure that the cameras can properly work in -50℃ to 80℃, 10 degrees beyond the standard range (-40℃ to 70℃). 

The fully enclosed cameras, such as PTZ cameras, eye ball cameras, and bullet cameras, tested at alternating Temperature and Humidity Tests (Damp heat cyclic) with temperatures varying between 25℃ and 55℃ and relative humidity reaching a maximum of 100% (camera surface allow condensation) were conducted for two cycles lasting a total of 48 hours. For cameras not fully enclosed, Steady Damp-heat Tests at 40℃ and 93% humidity (no condensation) were conducted for 96 hours. Both tests have been developed on the basis of International IEC Standards, ensuring that all cameras are capable of working with the humidity varying from 0 to 100%.

Outdoor cameras are required to go through IPX6 or IPX7 tests. Standard IEC62262 IPX6 test requires camera surface to be sprayed by 100±5 L/min of water for 3 minutes. It is worth mentioning that Dahua cameras are tested for at least 10 minutes in the same conditions, 3 times tougher than the standard one. In addition, Dahua has developed its own standards which include tests where, 5±0.5 L/min of water (equivalent of middle rain in plum rain season) was sprayed to cameras for 192 hours from above. On top of the water ingress tests, every Dahua camera needs to go through an airtightness test, too, to make sure that it is sufficiently water-proof.

Dahua Port Solution and airport solution require the cameras to be installed in seaports and airports where it’s highly likely to be wet and salty. Salt spray and electrochemical effects may result in serious corrosion on metal surfaces, which may cause the fall of the cameras. However, as featuring corrosion protection at Quadruple of International IEC Standards, Dahua cameras won’t be bothered by this problem. 

In addition to the tests above, Dahua cameras have also passed a Drop Test that decreases the risks of damage during transportation; a Life-span Test that promises a life of at least 4 years in normal conditions; and a Dust Resistance Test ensuring a performance undisturbed by dust. Together, all of these tests ensure Dahua is able to deliver lasting performance.


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