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LJD Domes again (brownout problem)


Guest MikeJ

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Guest MikeJ

Has anyone had trouble with LJD domes (VANDALDAYNIGHT) failing under brownout? We have installed several of these across several sites for a major client and the majority fail regularly. Cycling the power brings them back up. LJD say there's no problem but our tests show that even a 60% 20 cycle dip on the mains kills the output. Oh yes, and we're using their power supplies!

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Guest Rockford

Stick their PSU on a UPS. That'll fix it! We've used these cams and they certainly do have their little "quirks". Last place we installed them had a clean line for power and they never have power probs. If you put them behind a UPS, either with or without an LJD PSU, it ought to sort 'em. Make no mistake however, they ain't great cameras :no: ! You surely get what you pay for... they cost £****, their peers can cost up to £**** or more... It shows! :yes:

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Unlike Black out, where lost of power for more than 10 sec a Brown out is a term used when the mains power supply has a lull i.e. flicker. It is often caused by slow response of the national grid or the Most causes however can be located to a !To Larger Load on the ring that you are using! kicking in. I think that is correct. There can be other causes but these are the main ones.

A trout out on the other hand is when the wife goes shoping. :ninja:

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why not fit a boxed psu that can take a battery back up?

The opinions I express are mine and are usually correct!

(Except when I'm wrong)(which I'm not)

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One of the dynamic day night domes i fitted in the last few weeks went all white for no reason i had to down power and repower all was ok and has been since is that the same as above??

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One of the dynamic day night domes i fitted in the last few weeks went all white for no reason i had to down power and repower all was ok and has been since is that the same as above??

63981[/snapback]

Ring and speak to Paul, he may have an answer, ive never had that problem with them (touch wood)!

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I've discovered that the manufacturer of the dome is Sunkwang Electronics in Korea (type SK-D105/M400XAI). They say that some units shipped before 10/5/2005 have an iris fault which has since been corrected. They also say that the Vendor should replace with new ones.

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I've discovered that the manufacturer of the dome is Sunkwang Electronics in Korea (type SK-D105/M400XAI). They say that some units shipped before 10/5/2005 have an iris fault which has since been corrected. They also say that the Vendor should replace with new ones.

64037[/snapback]

Thanks for the follow up information, are LJD going to replace the equipment for you?

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