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?
How to build a ammeter switch
Jan 20, 2008
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If you can live with just an LED indicating that current is flowing, these self powered type widgets will work: 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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If you can live with just an LED indicating that current is flowing, these self powered type widgets will work:
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You could also scan ebay for current sensor, indicator, etc. If you get lucky you may find a pre-built plug in type gizmo.
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
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Boden
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