How to build a ammeter switch

I have a special sterilizing box in which a UV lamp is used to kill the bacteria on some special tools. I would like to build a device that would monitor the current of the UV lamp; when the lamp is good there is a OK signal, like a green lamp, and when the UV lamp ages or burns out, there is little or no current flow and the device can give me a warning signal, say a red lamp will be on. Can anyone send me a design?
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On Jan 20, 6:01 am, snipped-for-privacy@gmail.com wrote:

If you can live with just an LED indicating that current is flowing, these self powered type widgets will work:
http://www.ssac.com/catalog/LCS01A01.pdf
http://www.crmagnetics.com/newprod/ProductView.asp?ProdName=CR2530
You could also scan ebay for current sensor, indicator, etc. If you get lucky you may find a pre-built plug in type gizmo.
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snipped-for-privacy@gmail.com wrote:

You could design one with a couple of comparators, diodes, and other passive components. But, I'd rather by one. The UV sterilizer in my water supply sterilizer has just such a controller. Check with R-CAN at
www.r-can.com
Boden
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