northwest_trail
Member
Hello.. I'm a little bit new to using PID and have a question about my particular application.
I will be turning on a heater using a solid state relay, so the element will either be on or off. We will measure the temperature using an RTD, attempting to reach some set point.
Is this a PID application? The reason I ask is because we have the digital output, and everything with PID I've seen has had an analog output. I've thought of using PWM on the heating element to make it more like an analog output, but the solid state relay would burn out fairly quickly.
From someone more experienced than I, what is the best method for controlling this?
Thanks in advance.
-nwt
I will be turning on a heater using a solid state relay, so the element will either be on or off. We will measure the temperature using an RTD, attempting to reach some set point.
Is this a PID application? The reason I ask is because we have the digital output, and everything with PID I've seen has had an analog output. I've thought of using PWM on the heating element to make it more like an analog output, but the solid state relay would burn out fairly quickly.
From someone more experienced than I, what is the best method for controlling this?
Thanks in advance.
-nwt