How to Monitor CO2 with your Neptune Apex
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- Опубліковано 22 сер 2024
- Love High pH? then you should care about CO2! Today we are monitoring room co2 with the neptune apex.
Sensor: siemens qpa2000 (best deals on ebay)
BNC Connector geni.us/bnccon...
ASM Module to get the data into apex
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I’m monitoring co2 with my Apex. I used a Tellaire Ventostat T8100D. Much simpler to setup than the model you used. Wire it up directly no resistor needed. change one jumper, set the ASM to 0-5v, 0-1650. I power mine off a 24v port of the EB832. One thing I like about the Ventostat T8100D is it has a screen so you can see the readings directly on the unit and then verify your apex is reading it correctly.
The screen is a nice touch! This one is supposed to give 0-5v from removing a jumper (thoma's/harrys both did) i think I there was an issue with my sensor so the resistors was just a hack to get it going rather than dealing with trying to warranty it.. most should just need to hook up the 4 wires and be be done! how much was the T8100D?
@@ReefDudes I got the T8100D for $20 new on eBay. They are more expensive retail but I see surplus ones all the time on eBay cheap.
I picked up a Telaire T8300-DB with a Pitot Tube from eBay real cheap. From what I can tell, it’s essentially the same as a T8100 but with different sensors on the inside. Question is what should I do with the pilot tube. I think it’s optional. However I think it would be cool to run it in line after a CO2 scrubber which can tell me if I need to shake the media inside to disrupt the air channeling through the media.
Thoughts?
Jk actually the 8200 is the one with different sensors. 8100 and 8300 are the same, just the pilot tube on the 8300 both have automatic calibration.
Do a video about it - i will like to see it
Thanks for the shout out!!!!
Thanks for the inspiration!
Thanks for both of you ! 👍
I am truly a disaster in DYI, and i have a HUGE Co2 problem, to the point that my house runs 3,000 plus inside the house, if anyone is interested in building this for me, I will be happy to pay for your asking price for it, this will create a huge advantage for me based on my issues to monitor this with my APEX and coordinate additional fans to help circulate air based on this measurements.
A very cool and interesting project. Thanks for posting. I’d love to see more of these types of projects and hacks in the future.
I would also be interested in how your CO2 cycles with the day & aquarium lights. If you have a Apex Oxygen sensor, it would also be interesting to see the CO2 & O2 relationship.
Thanks again,
Jim
More to come! Once i have a few weeks of data ill dig into some of the correlations! this one has been on my todo list for ages now so was great to finally build it! I work on some more neptunte DIY stuff :)
Important to note that this is ambient air CO2, NOT dissolved CO2 in water. I believe those sensors cost several $K and hear they’re finnicky. I’m sure there is SOME CO2 in the water however it’s rapidly fleeting and combining with H2O to create H2CO3 aka carbonic acid. As free hydrogen concentration(pH aka power of hydrogen) lowers, that H2CO3 can shed a H or two to disassociate into bicarbonate or carbonate. Carbonate alkalinity in the ocean stems from atmospheric CO2.
My Ambient CO2 tends to track with my pH and my lighting wattage graphs. I toggle between lye and soda ash dosing based on alk tests and current pH to limit the pH drop with lights off. This essentially offsets pH drop from elevated CO2 and I just see the pH spike from photosynthesis. My ambient CO2 rises with pH because I have my lighting set for optimal viewing when everyone’s home.
Ok, just did a Tellaire T8300 -- got it working perfectly. I just set the ASM to 0-5v, min 0 and max 1650. Set jumper to 0-5v. Like another commenter, I too power mine off a 24v port of the EB832. Like yours, I love the fact mine has a display on the unit itself. I did accidentally forget to send 0-5v and was sending 0-10v, which I scaled it to 850 and it actually worked exactly the same as 0-5v. I didn't do the multi-meter, and just fudged it until it was holding close to what it was reading on the display.
Nicely done! Haven’t a display on it is a nice touch! Would make it easy to dial it in to be accurate too !
@@ReefDudes thanks! I am surprised more people haven’t done more of these ASM projects and posted to UA-cam. Any sensors you’d be interested in? I’ve been looking for other sensors to build but it’s nothing relevant - gyroscopic, force, photovoltaic, temperature, relative humidity. I can see how you could use temperature and relative humidity, but not much else.
@@PatrickJewellTheGreat same boat. I would love to do more but need to find something cool to do that’s actually useful for the tank :). Let me know if you find any super cool sensors!
I looked into this, then realized the price of the sensor and the time it takes for me to DIY everything. Then realized that WiFi co2 sensors can be had for quite less money and time. Imma just get one instead for less than $80 vs $250 for a Siemens sensor. Thanks for the tutorial though, reefdudes
I paid 80-90 for the sensor off eBay. But also need the asm module ontop of it.
For me the appeal of this solution is simply the logging by Apex and the charting/comparision/overlays you can do once you have that data. I imagine for those with automated setups, similar is true. It would be nice for a native solution, but its interesting that you can DIY something like this.
Way above my head, but interesting none the less. Will be fun to follow you as you test it out. :-)
Slightly more advanced.... more data more data! lol :P
This project can actually be done with the Hydros as well. The X4, Wave Engine, and the Wave Engine LE all have four 0-10v inputs on each device. So all you need is the CO2 monitor and an external power source.
Sweet Thats handy!
my house co2 runs around 1500-2000, definitly a good thing to monitor for a while to understand if this is where your ph problems are coming from
Great design. I am a bit confused about the upper limit and the conversion factor. Is the upper limit of the Siemens sensor 1650? If not, why not use whatever the upper limit is? How do we test the accuracy of the conversion factor is we do not have a known value? Do you use your display C)2 sensor as your known value and then arrive at the conversion factor by diving that value by the sensed voltage? Thank you. Again, great video
Thanks for this video. My parts are on the way. You mentioned that you will provide Harry's detail description link below this video. I don't see it so would you be able to add it here?
From memory, that sensor needs to stay below 70% humidity to have any kind of accuracy, so don't put it in your cabinets or above the tank :)
Good to know! Mines on the wall behind the tank so should be safe :)
@@ReefDudes you will see all sorts of interesting things also set off the C02, great indicator to open a window when they do
This is Sam - check your Massager I texted you - info - waiting for the ASM - Please replay back when you have a chance - Samuel MartinDelCampo-
I already order the SIEMENS QPA2000 - the BNC terminal and waiting for Neptune on the ASM - !!!!
Your on it!
I tried contacting them to buy just the ASM.
Good luck…
Good luck!
Did the fresh air return not affect the co2 much? I don't remember if you ever revisited that
To the skimmer? It def helped
@@ReefDudes no I meant the fresh air to the ac
@@gabesreef Ah yes it did! i had it turned down over winter when it was super cold out.. will have to turn it up more now :)
@@ReefDudes glad to see it did help. Ph is real hard one to get right
@@gabesreef Its been a battle! i think i'm in a pretty good place now! tooka while :P