Foggy EMX IRB-4X Photo Eye Lenses -
I have searched high and low for new EMX lenses and have finally found a source.
Link to Vynckier.
I had ordered a replacement set of enclosures online from Vynkier, they arrived in two days. Actually, one arrived. They had shipped one enclosure instead of two. I made a phone call to customer support and they had the missing enclosure shipped right away.
This was first time I dealt with the company. I called and the customer service rep was very quick to realize the problem. I understand mistakes happen, especially in shipping and ordering. Hopefully this isn’t a trend.
Even though a complete enclosure is sold, I was only after the clear cover. The rear part of the enclosure doesn’t have the stand-off’s for the board like the enclosures from EMX. This is not a deal breaker for me as the full enclosure was around $15 ea. +shipping. This is much cheaper for the customer that having to purchase a complete set of photo eyes.
As you can see from the pictures above, the sun can cause a lot of damage to the lenses. This can cause issues with gates being stuck open. As the lens becomes cloudy the infrared light becomes scattered from the transmitter. The more scattered the light, the less gets to the receiver. Once the amount of infrared light gets below the threshold, the receiver will lock on the relay. I have seen photo eyes turn on when the sun hits the lens at a particular angle, and go back into operation once the sun moves on. With a clear lens I haven’t seen this happen.
As a temporary fix I have removed the bottom sticker and turned the lens upside down. You can see this in the picture above.