[Jeff Stout]

Originally Posted by Jeff Niceswanger

I worked on those same cells at work. Banner Eyes. We used them everywhere throughout the plant on conveyors and such. The eyes have a sensitivity, and darkness adjustment. There are different kinds. Some have a transmitter on one side and a receiver on the other. Others us a transmitter and a reflector to "make the beam".
As you get the beam lined up a little red light will light up on top of the Banner Eye and make you aware its "made". The light on top my be dim, as it's barely made, or it might POP on and be quite bright. You can get them adjusted to where they SNAP on ..If you leave it dim, and not perfectly lined up, it will effect how quickly it triggers whatever your trying to do with it. If we left them in that condition, we could rest assured that within a couple days we would be sending someone else back to work on them because as dust, grime, soot got over the eyes lens a little, we would start getting missed counts, or missed whatever's ...
Hope this helps

^^^ this. I had trouble with settings these at Speedworld in Az. It would take awhile to get a bright red light and stay steady. We would rebuild them and some still would not come in right.