Thanks guys, it's so great to hear opinions from other professionals. I think we will now be seriously considering reversing the design to have the switch normally closed as a failsafe.
Would silver then be an acceptable contact material in that case? Or has any of you experienced many...
thanks Gunnar I'll try that book if I can find it.
itsmoked I think silver may be an exception to the 9V rule. I've just tried a sample switch that I've used in a lifetime test for a couple weeks in an equivalent 5V circuit, and it does form a reliable electrical connection.
the book...
hey Gunnar thanks for the reply. yea we thought about doing that but the device has already been designed and sold that way for years, changing the design now would cost a lot, as well as create compatibility and manufacturing book keeping headaches... so I guess we just gotta figure out how...
Hi, I am trying to figure out the reliable lifetime of the silver contacts in a pressure switch. I am trying to use this switch in a logic circuit as relay control. Since the switch serves a failsafe function in the device (it senses over pressure in the system), it should never close, and...
