via Fred D. Miller - CPP, CHS L-III, SRG Security Resources Group...
"It’s amazing how many times we are asked for specifications to replace an older camera system when just a little TLC is needed to dramatically improve its performance.
We’re not talking about trying to revive a totally dead horse or the complete upgrade of an old system to perform like new, which can be as costly as total replacement. But rather spending a modest amount to coax a couple more useful years out of a legacy if not ailing system. With today’s economy that kind of economics makes good sense to us.
So, here are a few tweaks that may help to resurrect a dying system which you may be able to do in-house. I would note though, that PM [preventive maintenance] should be conducted at regular intervals even on brand new equipment.
• Make a list of all equipment, where it is located and what it views. Note its apparent operating condition or problem. For example; camera #1, main lobby door, washed out view.
• Physically inspect every camera, component and connector, particularly if co- axial cable is used, as even slightly corroded connections will result in poor video. If in doubt at all, replace the connection with new.
• Thoroughly clean camera housings – particularly if they were located in an area where they were apt to accumulate dirt, dust, smoke film etc.,
• Clean camera lenses with lens cleaner [not a window cleaning product which may remove or damage the lens coating] If it is a varifocal lenses [auto iris etc] readjust as necessary. “Exercise” the lens motor or mechanism to assure it works freely,
• Check the placement of the camera so that it is not washed out by lighting, sunlight, or glare from nearby glass [curtain] walls,
• Make sure cameras view what you intended them to view and readjust their mounts if need be.
• If VCRs are being used, purchase good quality head cleaning tapes. Use them initially and then on a scheduled basis. If you are using a DVR, dust and heat are among the more common enemies of this equipment, so good ventilation [cooling] and housekeeping are important.
Whether you are using VCRs or DVRs refer to their respective operating manuals before attempting any PM maintenance on your own . . . it's delicate equipment."
Fred Miller is a well-known independent security consultant. His firm, SRG Security Resources Group, is located in Lafayette Hill, PA.
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