posted this in diy but no help.. Figure since my question is pid related Id get some good info here. So here goes.
I am getting parts together for my single tier build. It will be 3 burner herms. I am choosing to go with 3 burners and full gas automation for maximum versatility. It will be low pressure lp with honeywell 8200 valves. The cost is adding up fast and im about to purchase the electronics package. Looking at pids and reading tons of posts, mostly in the electric section because thats where most of the pid talk takes place. Been following drkwoods build also because thats really close to what I am building. Here is my question on pids. I can get mypin TA4 or sestos pids for about $20, half the cost of auberins. Most of the reasons people don't recommend these is the absence of a manual mode, and some are relay output only instead of ssr. I dont think these short comings are going to compromise my build at all. My understanding from what I have read is that the relay output is plenty to control the honeywells. When it comes to boil i would just use the HOA switch to put the burner on manual anyway. Is it worth the maybe 80-90 savings to go this route. Someone help me out here and talk me out of it if its going to cause headaches down the road. Also are RTDs really that different, im looking and finding alot of shielded cable ones on ebay for $10 instead of the 30 at some of the other sites.
Like these http://www.ebay.com/itm/New-Univers...453?pt=LH_DefaultDomain_0&hash=item19cce25d2d
http://www.ebay.com/itm/PID-Tempera...321?pt=LH_DefaultDomain_0&hash=item3373274061
I am getting parts together for my single tier build. It will be 3 burner herms. I am choosing to go with 3 burners and full gas automation for maximum versatility. It will be low pressure lp with honeywell 8200 valves. The cost is adding up fast and im about to purchase the electronics package. Looking at pids and reading tons of posts, mostly in the electric section because thats where most of the pid talk takes place. Been following drkwoods build also because thats really close to what I am building. Here is my question on pids. I can get mypin TA4 or sestos pids for about $20, half the cost of auberins. Most of the reasons people don't recommend these is the absence of a manual mode, and some are relay output only instead of ssr. I dont think these short comings are going to compromise my build at all. My understanding from what I have read is that the relay output is plenty to control the honeywells. When it comes to boil i would just use the HOA switch to put the burner on manual anyway. Is it worth the maybe 80-90 savings to go this route. Someone help me out here and talk me out of it if its going to cause headaches down the road. Also are RTDs really that different, im looking and finding alot of shielded cable ones on ebay for $10 instead of the 30 at some of the other sites.
Like these http://www.ebay.com/itm/New-Univers...453?pt=LH_DefaultDomain_0&hash=item19cce25d2d
http://www.ebay.com/itm/PID-Tempera...321?pt=LH_DefaultDomain_0&hash=item3373274061
