Help me set up a PID temp controller w/ heating element

[red913]

I need to heat styrene to its forming temp of around 325 degrees F. I have a heating gun that operates at too many amps to use safely at home. So I found these temp controllers that don't use a lot of energy, but can get hotter then my blow dryer can, yet not as hot as the 700 degree heat gun I have. So its a good compromise. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330211540965&ssPageName=ADME:B:WNA:US:1123"
Now this comes with a type K thermocouple which won't work for my application. What do I need to get this all going? Do I need a radiant heating element or will some bent bare nichrome wire inside some old cooking pans with insulation work? Also this will only need to heat 2ft x 2ft. Do I need an SSR or one of these guys too? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270211770451&ssPageName=ADME:B:DBS:US:1123"
This is all really new to me. I'm a total newb. lol Maybe I'm going about this all wrong. ANY help would be greatly appreciated.

THANKS!

 

[dlgoff]

325°F. Sounds like a perfect application for your home oven.

But if you want to learn a little about temperature control, you might want to take a look at http://www.omega.com/temperature/Z/zsection.asp" .

 

[oswaler]

I am happy to help you set up your PID temp controller with a heating element to heat styrene to its forming temperature of 325 degrees F. It is great that you have found a solution that is both energy-efficient and safe to use at home.

First, let's address the issue of the type K thermocouple. This type of thermocouple is not suitable for your application as it has a limited temperature range. You will need to purchase a type J or type N thermocouple, which can withstand higher temperatures, to use with your PID controller.

Next, you will need to choose a heating element that is suitable for your application. A radiant heating element would be a good choice as it can evenly distribute heat over a 2ft x 2ft area. Alternatively, you can use bent bare nichrome wire inside old cooking pans, but make sure to insulate it properly to prevent any safety hazards.

In terms of additional components, you will need an SSR (solid-state relay) to control the power supply to your heating element. This will allow the PID controller to regulate the temperature more accurately. The SSR you have found on eBay seems to be a suitable choice, but make sure to check the specifications to ensure it can handle the current required by your heating element.

I understand that this may all be new to you, but with some research and careful planning, you can successfully set up your PID temp controller with a heating element to achieve the desired temperature for your styrene. If you have any further questions or concerns, please do not hesitate to reach out for help. Best of luck!