Comart hicap50 issue

[tgu2k8 0]

Hello guys,

 

this is my first topic, hope that i`m posting it correctly to the right section.

 

I have an issue with a Dvr system, the software used is ComArt Pillar latest win version and the board is a ComArt hicap50 with 16 cammeras installed, 12v power supply installed separately.

 

I haven`t gone yet to the clients location but I encountered this issue before:

 

The cammeras work correctly but from time to time the image on every cammera turns gray and fluctuates, black to gray, unfortunately this time the cameras shows this gray image continuously (in the past a simple power reset was working but not now.)

 

Do you have any ideas ? I mean what`s wrong, do the cammeras don`t receive enough power ?

 

I installed 16 cameras to another location recently and saw that with only 1 12v power supply the image on cameras are not smooth therefore I installed 2 separate 12v power adaptors to work each with 8 cameras. This is the case for the problematic location ?

 

 

Sorry for my english, I would go directly to ComArt support but haven`t found yet the client code...

 

Thank you in advance.

 

Andrew

[Soundy 1]

Are these IR cameras? How far are they from the power supply, and what size power wire was used? It's POSSIBLE they aren't getting enough power and are dropping out intermittently, although it shouldn't affect all of them at once, unless the PSU is badly under-rated to the point that one camera's draw increasing causes the voltage out of the PSU to drop.

 

I've installed dozens of Vigil DVRs that use the HiCap50B boards and never seen a problem like this. I think only once, I had a board go bad and Windows wouldn't recognize it at all... other than that, they've been rock-solid.

[tgu2k8 0]

in an 500 square meters area 16 cameras all over the place. the electric cable that was used I think that it was 2x0.75mm but i`m not sure due to the fact that I haven`t installed it myself.

 

I`ll check the power rates for that power supply in load and off load to see exactly how much power do I get in the circuit.

 

Thank you

[Soundy 1]

Hmmm, 0.75mm translates into about 20 AWG... that's not a lot for long distances, especially if you have IR cameras on 12V.

 

What you really want to do is monitor the voltage AT the camera, WITH the camera connected. Choose one as far from the power supply as possible, where you can control the lighting... measure the voltage at the camera with the lights on, then turn the lights off so the IRs kick in, and see if the voltage drops significantly (assuming these are IR-equipped cameras).