how do i wire a co2 sensor!!??

gtlimited

Well-Known Member
its a telaire 8002
says it need 18-30 vac rms power
but does not come with any power supply or cable wtf?! how do i feed this with power
help plz
 

jwiz

Active Member
go to radio shack or equivalent and find a transformer that puts out between 18-30 volts AC. somethimes goodwill, surplus store or garage sale you can get lucky. You just have to look at the transformer, also called wall warts or cell phone charger,,, it will say the output voltage on the back of the thing in tiny print you cant read with out your trich scope, lol. or if you prefer look online.

Once you get one, cut the plug off the end and wire it up to your co2 meter. polarity with most ac devices doesn't matter.

or you could send the co2 meter to me if you can't figure it out, i've been wanting one, lol
 

jwiz

Active Member
Also, when looking at transformers, make sure it can supply sufficient current for your device. It will also say this on the output line on the back of the transformer. Check the back of the meter or the book or online for it's current requirements.
 

gtlimited

Well-Known Member
Also, when looking at transformers, make sure it can supply sufficient current for your device. It will also say this on the output line on the back of the transformer. Check the back of the meter or the book or online for it's current requirements.
aaaaaaa i had 1 today but i gave to my friend to return cauz i was scared if i cut the end i wont know what to do wit it.. i guess ima rebuy that lol

i could choose between 12v and 24 i think on the box

cool thank you for the information :)
 

gtlimited

Well-Known Member
Just make sure it is AC, most transformers/wall warts put out DC.
hey u look good in wiring i got other question

how do i connect multiple 120volt items in 240volt stove outlet? i need some kind of power box or tranformer idk,,?
 

jwiz

Active Member
It would be best to have a volt meter to hook it up, not recommended for newb's as 240V has a lot higher chance of killing you versus 120V. You could get a bare plug 240V from home depot and hook it up to the proper 3 wires, 240 will have 4 wires. It's usually the white, black and green you would want to match up for 120V though. Pick up a cheap multimeter from radio shack or home depot for like $20. Wire up your plug with the breaker off, never work on a live outlet at these voltages. When you got it all wired up, dont have anything plugged into it, turn the breaker on and use the voltmeter to test your voltage, make sure it says ~120V. Test it on something you don't mind frying like an old radio, make sure your ready to flip the breaker off in case of problems.

Google it and you could probably find a nice diagram to make it easy for you, my ascii art is pretty rusty.
 

gtlimited

Well-Known Member
It would be best to have a volt meter to hook it up, not recommended for newb's as 240V has a lot higher chance of killing you versus 120V. You could get a bare plug 240V from home depot and hook it up to the proper 3 wires, 240 will have 4 wires. It's usually the white, black and green you would want to match up for 120V though. Pick up a cheap multimeter from radio shack or home depot for like $20. Wire up your plug with the breaker off, never work on a live outlet at these voltages. When you got it all wired up, dont have anything plugged into it, turn the breaker on and use the voltmeter to test your voltage, make sure it says ~120V. Test it on something you don't mind frying like an old radio, make sure your ready to flip the breaker off in case of problems.

Google it and you could probably find a nice diagram to make it easy for you, my ascii art is pretty rusty.
i dont hav acess to breaker box
i would prefer to pay for a box that is already wirred and that i just hav to plug in the wall with multiple 120v outlets

does is exist?
 

gtlimited

Well-Known Member
hey for the sensor look that box

description:

Very popular for use in large apartment and office building elevators to power door openers, bells, alarms and chimes. 115VAC input. UL. Delivers; [email protected]. Easy to install lock nut type ount. Mounts on side of standard gang box. High power for long wire runs. 2 1/2" (D) x 2 1/4" (W) x 2" (H).


think it will work?
i just cutted a computer poweer supply cable and inside there 3 wires the same color as the lil box ( white black green )

thanks
 

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jwiz

Active Member
Actually, I just looked at the product page for your device, it's pretty sweet, I wish I could afford one.

Anyway, It says max average power is 1.75A and 2.75 max, you will end up overheating and eventually burning up that transformer. But, it will also take 18-42 VDC as well as AC. So you are going to want to find something a bit bigger just to be safe.

Also, that co2 sensor has relay outputs so if you had an electonic air solenoid you could have it turn your co2 on and off once it reaches your desired ppm.

As for the 240 to 120 breakout box, you need to know what type of wire is going to that outlet, is it 2, 3, or 4 conductor. If it's 4 conductor, than you have 2 hot wires, a neutral and a ground. All you would have to do then would be split the white and ground into 2 seperate wires, and pick the red or the black for your third wire. so outlet #1 would have a green, a white, and black and outlet #2 would have a green, white, and red. Be carefull on your current draw, I'm not positive if you would be able to draw to much current through one outlet as 240 usually is breakered at 40A total but that gets split between the two lines but one side could potentially draw 40A creating a real fire hazard.
 

gtlimited

Well-Known Member
Actually, I just looked at the product page for your device, it's pretty sweet, I wish I could afford one.

Anyway, It says max average power is 1.75A and 2.75 max, you will end up overheating and eventually burning up that transformer. But, it will also take 18-42 VDC as well as AC. So you are going to want to find something a bit bigger just to be safe.

Also, that co2 sensor has relay outputs so if you had an electonic air solenoid you could have it turn your co2 on and off once it reaches your desired ppm.

As for the 240 to 120 breakout box, you need to know what type of wire is going to that outlet, is it 2, 3, or 4 conductor. If it's 4 conductor, than you have 2 hot wires, a neutral and a ground. All you would have to do then would be split the white and ground into 2 seperate wires, and pick the red or the black for your third wire. so outlet #1 would have a green, a white, and black and outlet #2 would have a green, white, and red. Be carefull on your current draw, I'm not positive if you would be able to draw to much current through one outlet as 240 usually is breakered at 40A total but that gets split between the two lines but one side could potentially draw 40A creating a real fire hazard.

i want to connect the sensor on my intelliclimate controller

and why i will fry the transformer?
 

jwiz

Active Member
Yup, it's better to be safe than sorry, especially with electrical. I did a google search and I seen a few transformers that would work for you, just pick one that is rated over the max for your device, go for like 3 amps or so to be safe.
 

Anotheroldephart

Well-Known Member
That looks like a pretty sweet system. If you need any more help hooking it up, feel free to ask.
Hey j..could you post a diagram of your set up? I'm working on one as well, but any HELP will be great.. I've found a couple of sensors for about $150.00, and a CO@ reg kit for $1555 and a 20lb tank with fill for 160. Will be running it all through either linux or maybe obuntu(s?) or a gumstick..that's the way I want..I'm designing,with puter help, a plug and play P controlled control center.. Anything that goes in will get "real time credit"
Can't ya just see it now.."I want to thank the following for their much needed contributions..jwiz...clowdy...etc... Think anyone ould wonderwhere it came from? *snicker*
 

jwiz

Active Member
I don't have a sweet setup like you do, mine is pretty simple since I am just starting out. I do have alot of experience with electronics and computers so that part is fun and easy for me. I use linux (ubuntu) pretty much full time so if you need help with that I can. I like Ubuntu personally, but your choice of distro should be based on what you need to do on it. Since you have the intellicontroler and a nice co2 sensor, you shouldn't need the flow regulator you should only need a pressure regulator, much cheaper than the flow regulator and an air solenoid. So it should go: Tank -> Pressure Regulator -> Air Solenoid. You can either hook the air solenoid up to your co2 sensor direct or to the relay box that comes with the intellicontroller. Set your pressure regulator to 50 psi or less (may require a little experimenting to determine the best pressure) and your air line goes into the air solenoid which will remain closed until your intellicontroller tells it to release more co2. Once the level in the room rises to your preset ppm level the solenoid will close, stopping the flow of co2. You should be able to pick up a air solenoid for under $20 and a tank pressure regulator for under $100.
 

gtlimited

Well-Known Member
I don't have a sweet setup like you do, mine is pretty simple since I am just starting out. I do have alot of experience with electronics and computers so that part is fun and easy for me. I use linux (ubuntu) pretty much full time so if you need help with that I can. I like Ubuntu personally, but your choice of distro should be based on what you need to do on it. Since you have the intellicontroler and a nice co2 sensor, you shouldn't need the flow regulator you should only need a pressure regulator, much cheaper than the flow regulator and an air solenoid. So it should go: Tank -> Pressure Regulator -> Air Solenoid. You can either hook the air solenoid up to your co2 sensor direct or to the relay box that comes with the intellicontroller. Set your pressure regulator to 50 psi or less (may require a little experimenting to determine the best pressure) and your air line goes into the air solenoid which will remain closed until your intellicontroller tells it to release more co2. Once the level in the room rises to your preset ppm level the solenoid will close, stopping the flow of co2. You should be able to pick up a air solenoid for under $20 and a tank pressure regulator for under $100.
hi for now i use that little device called co2 boost(look pic) guy told me its good for a 10x10 but i dont believe that..i ordered a regulator at 155$ from betterthannature.com but they fucked my order.. shipped me wrong products,missing pieces and missin boxes..
 

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