CO2 controller that does NOT turn off at night?

[Scrappy-doo]

All these new CO2 controllers seem to have a photocell that turns them off when the lights go off.

I'm running 2 tents in the same room on opposite schedules. When one turns off, the other turns on. Need a controller that will just stay on 24/7 regardless of light cycle. Any suggestions?

 

[f-e]

I have not seen one with light sensor tbh. They just plug in with the lights. Look on eBay or even Ali for a Billy Basic. I just checked and the same ones have been available since the 90s

Edit: I do see the benefit of a light sensor. So it can see the lights just came on, and dose a room full. Rather than being unsure if it was a power cut, so trying short bursts that would take a while to catch up

 

[toastfighter2]

Add a relay to the light timer to trigger a solenoid on the co2 lines.

 

[Scrappy-doo]

Add a relay to the light timer to trigger a solenoid on the co2 lines.

I'm looking for a controller to connect to a burner.

I have not seen one with light sensor tbh. They just plug in with the lights. Look on eBay or even Ali for a Billy Basic. I just checked and the same ones have been available since the 90s

Edit: I do see the benefit of a light sensor. So it can see the lights just came on, and dose a room full. Rather than being unsure if it was a power cut, so trying short bursts that would take a while to catch up

Which ones are you looking at? I looked on Amazon and they seem to all have photocells. Any of these the ones from the 90's you're talking about?
https://www.amazon.com/s?k=co2+controller&i=tools&ref=nb_sb_noss_1

 

[Shmavis]

All these new CO2 controllers seem to have a photocell that turns them off when the lights go off.

I'm running 2 tents in the same room on opposite schedules. When one turns off, the other turns on. Need a controller that will just stay on 24/7 regardless of light cycle. Any suggestions?

I think this might serve your purpose:

https://www.amazon.com/dp/B08F9RYHD...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Another option would be a cycle stat. The newer ones, even though they have a photocell, can be bypassed to operate in the dark. Problem going that route though is more of a need to calculate PPM for proper charging time.

https://www.amazon.com/BN-LINK-Peri...d=1612452967&sprefix=cyclestat,aps,911&sr=8-4

I have this controller:

https://www.amazon.com/Day-Night-Mo...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

The photocell is very sensitive. It sounds as though you are basically running a lung room of sorts with two tents in it on separate schedules. If that's the case and your tents are adequately lightproof you could manage a small light source directed at the photocell to trick it.

Also, with the dump of excess CO2 at lights out in respective tents and depending on how you are venting, the occasional charge with a cycle stat might be more than adequate (and cheaper). If you aren't already measuring ambient PPM you might be surprised at the readings you find with just the pilot light lit, especially in a well insulated tight room. To that point, I no longer cycle my generator. My controller is used in "greenhouse" mode and is set to trigger at 1300PPM, engaging the exhaust fan. So depending on the BTU rating of your generator and the cubic feet of your room, you might not even need a controller.

Good luck.

 

[f-e]

It seems the one I looked at is just a cyclic timer, rather than an actual sniffer.

You could short out the sensor with a 1k resistor, which would look like 1000lux to the rest of the circuitry. You could probably just use a bit of wire, but I would be cautious as an LDR doesn't usually get below about 100 ohms.

 

[Scrappy-doo]

I think this might serve your purpose:

https://www.amazon.com/dp/B08F9RYHD...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Another option would be a cycle stat. The newer ones, even though they have a photocell, can be bypassed to operate in the dark. Problem going that route though is more of a need to calculate PPM for proper charging time.

https://www.amazon.com/BN-LINK-Peri...d=1612452967&sprefix=cyclestat,aps,911&sr=8-4

I have this controller:

https://www.amazon.com/Day-Night-Mo...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

The photocell is very sensitive. It sounds as though you are basically running a lung room of sorts with two tents in it on separate schedules. If that's the case and your tents are adequately lightproof you could manage a small light source directed at the photocell to trick it.

Also, with the dump of excess CO2 at lights out in respective tents and depending on how you are venting, the occasional charge with a cycle stat might be more than adequate (and cheaper). If you aren't already measuring ambient PPM you might be surprised at the readings you find with just the pilot light lit, especially in a well insulated tight room. To that point, I no longer cycle my generator. My controller is used in "greenhouse" mode and is set to trigger at 1300PPM, engaging the exhaust fan. So depending on the BTU rating of your generator and the cubic feet of your room, you might not even need a controller.

Good luck.

Some great suggestions here. Thanks brother!

 

[Scrappy-doo]

It seems the one I looked at is just a cyclic timer, rather than an actual sniffer.

You could short out the sensor with a 1k resistor, which would look like 1000lux to the rest of the circuitry. You could probably just use a bit of wire, but I would be cautious as an LDR doesn't usually get below about 100 ohms.

Thanks f-e!