Hi, i'm new... This is my first project and I've never done something similar before so I apologize if I will ask some trivial things but I've already done some research and nothing seems to be similar to my problem. Basically I want to keep the temperature of a simple resistance, constant at a value of about 200 °C and I wanted to ask you what do I need to do that. I have to use a thermocouple and a ssr and a generator similar to this one:https://www.amazon.it/GW-Instek-GPS-3030D-Alimentatore-corrente/dp/B010TMF7G0/ref=sr_1_1?ie=UTF8&qid=1525351175&sr=8-1&keywords=generatore+di+corrente+laboratorioWhat kind of ssr do I need? What kind of thermocouple do I need? Do I need other things? I'm asking because I do not own those things except for the generator and I can't buy useless stuff (and since I'm a noob I probably would do that without your help).Thank you for reading this and for paying attention hope you can help me.
The power supply linked is 90 Watts (30V, 3A max).What, exactly, is the "resistor"? Please describe it in detail (resistance, maximum power dissipation, etc.).
Only off a little! Guess I saw the 30 in the picture and thought it was amps. Just need to learn my numbers!Wow, 200C with 90 watts. Must be a light bulb.Paul
First, if your "generator" adjustable power supply, can supply the maximum voltage and current at the same time, you are limited to 900 watts. What is the value of resistor that can dissipate 900 watts and maintain a 200C temperature? Yes, you can figure that out.Second, a SSR is of no use to you with DC power. Use a MOSFET and a large heat sink to turn the current to the resistor on and off. Others may have answers to the thermocouple question.Paul
A SSR used with DC can be turned ON by your Arduino, but cannot be turned OFF.
OP posted a link to a DC SSR.Leo..
Wonder how he plans to attach the thermocouple to the tungsten wire?
I've already use that power supply and it works but I have to adjust "manually" the voltage to have the right temperature so i wanted to use arduino to do that work for me.
Basically I want to keep the temperature of a simple resistance, constant at a value of about 200 °C