Hi
so I'm attempting to figure out how to fix my crossing signal system, it's been puzzling me for months now. So I've been told by the "experts" on this system that it's possibly the photocells being no good. I've tested all the cells for resistance and I've gotten readings from 6-19 and even a 0, and I'm not sure which readings, high or low, are good and which are bad? Anyone know more than me about photocells, please help...I may just have to switch to infrared sensors!
so I'm attempting to figure out how to fix my crossing signal system, it's been puzzling me for months now. So I've been told by the "experts" on this system that it's possibly the photocells being no good. I've tested all the cells for resistance and I've gotten readings from 6-19 and even a 0, and I'm not sure which readings, high or low, are good and which are bad? Anyone know more than me about photocells, please help...I may just have to switch to infrared sensors!