On some equipment in our laundromat we went with tool-less & vibration proof style of PhoenixContact Terminals. I wonder if that could be a worthwhile extra for the manufacturers to provide in the car wash industry. Maybe they already do. Nothing should stop us from using some of those ourselves. In our plc driven dog wash we crimped wire ferrules on the ends of the wires before fastening to the screw terminals. Thanks for shedding light on the potential for basic screw terminals to sometimes loosen up at the most inopportune time.Me too. Actually all the screws on the terminal strip were loose. I guess caused by vibration from the pump mounted on the same panel.
Had this issue . Fixed it by replacing sensortron.Well I thought it was fixed but the problem persists intermittently. I seem to have a lot of trouble with sensortrons.
We have not changed the internals of the Sensortron in over 20 years. The change we made at that time was to go from through hole technology to surface mount.The NEW Sensortrons aren't as good as the older Sensortrons. They might look the same but the insides are different.
Forgot all about that. That was 15 years ago or so. We just changed the output device. It's actually been more resilient than the shielded relay used previously. There is no serial number cuttoff, per se. Currentyly it would be 218712 but the policy is anything 15 years old or older is not repairable.Dan Kamsickas, wasn't there a change to make them impervious to magnets? Also what is the serial # break where they can or cannot be repaired by GinSan?
Feel free to email my your contact information and I can email you a RMA.At any rate I ordered a new insert for the sensortron in question. If I have any that are newer than the above mentioned serial number, I would like to send them in for repair.