I have recently gotten an order of pretty detailed and rather easy to use CDRH Safety boards. I did not design nor make these. Simply re-selling them for another company. They are pretty serious pieces of work though.
These boards are used to check all interlock states, when satisfied, will signal shutter circuit (or external SS relay). Variable delay times from ~3 seconds to 8 seconds. Multiple LED ouputs to show state of interlock(s) if you decide to use them. Manual reset function and E-stop circuit.
these boards more than satisfy all safety requirements for the CDRH.
They are $150 each. They are about the size of a credit card.
If you have questions, I will try to answer as best I can. If I dont know the answer, Ill find out for you.
-Marc
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