Is there anyone that still makes an 18mm 4-20ma ultrasonic sensor without a teach button ?
I am getting frustrated looking for one every one I look at has a teach button, I can see the use for a teach button on a sensor with discrete outputs but on a analog output I don't get it why is this such a popular function that every one must have?
Sorry I got off on a tangent what I need is a sensor that I can slap in place, program the plc to look at the levels I want and when that sensor fails replace it with the same sensor and get the the same results +/- and not rely on the tech to teach the sensor.
I am getting frustrated looking for one every one I look at has a teach button, I can see the use for a teach button on a sensor with discrete outputs but on a analog output I don't get it why is this such a popular function that every one must have?
Sorry I got off on a tangent what I need is a sensor that I can slap in place, program the plc to look at the levels I want and when that sensor fails replace it with the same sensor and get the the same results +/- and not rely on the tech to teach the sensor.
