Hi
I am working on a project to design a self contained cooler for a group project and I am working on the electrical system. The cooling system works by using a ammonia vapor set up to cool the food. Now I have the heating coil I am going to use but the problem is I need a latch relay to open the circuit under two conditions 1. it will shut down after a certain amount of time or the pressure changes or if the heating coil goes above a certain temp. This setup will be monitored by a computer system that will be chosen by another member of my group. My professor recommends That I use a parallel port set up but I can't find what I want or I am missing something. It will monitor a 120VAC standard wall socket at a current of 5-10 A.
I am working on a project to design a self contained cooler for a group project and I am working on the electrical system. The cooling system works by using a ammonia vapor set up to cool the food. Now I have the heating coil I am going to use but the problem is I need a latch relay to open the circuit under two conditions 1. it will shut down after a certain amount of time or the pressure changes or if the heating coil goes above a certain temp. This setup will be monitored by a computer system that will be chosen by another member of my group. My professor recommends That I use a parallel port set up but I can't find what I want or I am missing something. It will monitor a 120VAC standard wall socket at a current of 5-10 A.