I have a Fuji PXR4 programable micro-controller (time & temp control of a 220V coil-element pottery kiln). A Fuji signal for heat triggers a 120VAC power relay. The Fuji and the relay have been working well for numerous kiln firings.
But: The relay contacts often bounce or chatter? , & arc during the 11 hour kiln firing with the deterioration of the contacts/eventual relay replacement - $$$. Is there a contact "protection circuit" ......I've heard of a resistor - capacitor network.
Since I usually prefer an overnight firing, I'd rather not have a "welding of the contacts" event...even if only in my dreams.
Help would be greatly appreciated.
GordoP
But: The relay contacts often bounce or chatter? , & arc during the 11 hour kiln firing with the deterioration of the contacts/eventual relay replacement - $$$. Is there a contact "protection circuit" ......I've heard of a resistor - capacitor network.
Since I usually prefer an overnight firing, I'd rather not have a "welding of the contacts" event...even if only in my dreams.
Help would be greatly appreciated.
GordoP