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How to build a ammeter switch
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david.fab...@gmail.com
Jan 20, 2008, 6:01:23 AM1/20/08
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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?
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?
tra...@optonline.net
Jan 20, 2008, 12:39:00 PM1/20/08
to
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.
Boden
Jan 20, 2008, 5:16:05 PM1/20/08
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david.fab...@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
Boden
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