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Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
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ratdog
wild capture trader
Registered: 08/16/09
Posts: 959
Loc: Colorado mount. top
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: Herbal_Elixer]
#11242257 - 10/13/09 08:23 PM (14 years, 5 months ago) |
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thanks herb i was haveing trouble getting my point across.
i just hope people can get the chance to try this its workin awesome like.
-------------------- some people just don't get it http://www.shroomery.org/forums/showflat.php/Number/11241796 so here is a video or two or three for you guys
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Herbal_Elixer
Strangerest
Registered: 05/05/09
Posts: 1,841
Loc: Reykjavik
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: ratdog]
#11242280 - 10/13/09 08:26 PM (14 years, 5 months ago) |
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I imagine.. being able to set a device to maintain 87% RH exactly, if that's what you want or 95 or 99 or whatever, and get it exactly.. that is pretty awesome.
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anonjon
Partially Right
Registered: 11/03/08
Posts: 6,322
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: ratdog]
#11242506 - 10/13/09 08:58 PM (14 years, 5 months ago) |
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Yeah, I didn't quite get it till herbal explained it.
Seems pretty awesome to me.
You have any recommended reading for automated fanning/misting?
-------------------- The above post is fictional, hypothetical, or downright nonsensical.
Edited by anonjon (10/13/09 09:01 PM)
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ratdog
wild capture trader
Registered: 08/16/09
Posts: 959
Loc: Colorado mount. top
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: anonjon]
#11242609 - 10/13/09 09:13 PM (14 years, 5 months ago) |
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Quote:
anonjon said: Yeah, I didn't quite get it till herbal explained it.
Seems pretty awesome to me.
You have any recommended reading for automated fanning/misting?
i don't have any recommendations other than read what you can on wet dry bulbs.
and if you find any please post them it will help.
so fare the only problem i have encountered is the drop in temp as my room temp is not constant i figure i have a 4-6 degree window on my particular rh so i need to keep my room in that temp range.
with the 1 degree accuracy of the thermostat it helps as i have seen some as high as 10 degrees.a 10 degree swing would be unreasonable.
-------------------- some people just don't get it http://www.shroomery.org/forums/showflat.php/Number/11241796 so here is a video or two or three for you guys
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ratdog
wild capture trader
Registered: 08/16/09
Posts: 959
Loc: Colorado mount. top
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: ratdog]
#11244312 - 10/14/09 06:07 AM (14 years, 5 months ago) |
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update....... i have seen an increase in growth rate and color change i think due to fae and the steady rh.
i have also noticed the lights i use are putting out too much heat i will switch from 4 - 4' to just two in an attempt to lower the temp swing due to the lights.
so fare the thermostat seems to be my best investment yet.
i will also be looking into putting a filter on the top exhaust of the ghetto and work on an external piping for the sonic.
i think i can seal the door flap with Velcro now to get a good seal and a more positive pressure inside.
anyone else try or are looking into this tek.
-------------------- some people just don't get it http://www.shroomery.org/forums/showflat.php/Number/11241796 so here is a video or two or three for you guys
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Herbal_Elixer
Strangerest
Registered: 05/05/09
Posts: 1,841
Loc: Reykjavik
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: ratdog]
#11244352 - 10/14/09 06:37 AM (14 years, 5 months ago) |
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Before I found those hepa face mask filters for my experimental GH.. I had planned on just building a cheap, poly filled box for an exhaust filter (just loose filled). That may be good for that set up.
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ratdog
wild capture trader
Registered: 08/16/09
Posts: 959
Loc: Colorado mount. top
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: Herbal_Elixer]
#11244515 - 10/14/09 08:01 AM (14 years, 5 months ago) |
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Quote:
Herbal_Elixer said: Before I found those hepa face mask filters for my experimental GH.. I had planned on just building a cheap, poly filled box for an exhaust filter (just loose filled). That may be good for that set up.
yes thats one way too. i use it on my boxes exhausting fan for which i need a thermostat for now, but i think i will go with a full sized hepa filter for the a/c the one thats not so expensive and disposable. i have holes in the top already and will just tape it on the top.
-------------------- some people just don't get it http://www.shroomery.org/forums/showflat.php/Number/11241796 so here is a video or two or three for you guys
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Herbal_Elixer
Strangerest
Registered: 05/05/09
Posts: 1,841
Loc: Reykjavik
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: ratdog]
#11244535 - 10/14/09 08:05 AM (14 years, 5 months ago) |
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OK.. the ones that will catch the most, like MERV 20, can get pricey.. I use a MERV 8 as a pre filter.
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ratdog
wild capture trader
Registered: 08/16/09
Posts: 959
Loc: Colorado mount. top
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: Herbal_Elixer]
#11244550 - 10/14/09 08:09 AM (14 years, 5 months ago) |
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thanks can you tell me what or who merv is. i need to checck into this.
-------------------- some people just don't get it http://www.shroomery.org/forums/showflat.php/Number/11241796 so here is a video or two or three for you guys
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Herbal_Elixer
Strangerest
Registered: 05/05/09
Posts: 1,841
Loc: Reykjavik
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: ratdog]
#11244557 - 10/14/09 08:11 AM (14 years, 5 months ago) |
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Herbal_Elixer
Strangerest
Registered: 05/05/09
Posts: 1,841
Loc: Reykjavik
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: Herbal_Elixer]
#11244558 - 10/14/09 08:12 AM (14 years, 5 months ago) |
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all those HVAC filters will be MERV rated
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ratdog
wild capture trader
Registered: 08/16/09
Posts: 959
Loc: Colorado mount. top
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: Herbal_Elixer]
#11244571 - 10/14/09 08:16 AM (14 years, 5 months ago) |
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hay thanks man now i know!
has anyone found a lower cost thermostat with the specs of the one i am using now? it looks like i need 2 more.
-------------------- some people just don't get it http://www.shroomery.org/forums/showflat.php/Number/11241796 so here is a video or two or three for you guys
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BrandNewbie
Captain
Registered: 05/21/08
Posts: 2,932
Loc: U.S.A.
Last seen: 4 years, 9 months
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: ratdog]
#11244693 - 10/14/09 08:58 AM (14 years, 5 months ago) |
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Nice job. You don't happen to need a diner guest do you?
I hope you have your recipes in order!
-------------------- Question: Why do women wear make-up and perfume? Answer: Because they're ugly and they stink.
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RogerRabbit
Bans for Pleasure
Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 1 month
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: BrandNewbie]
#11244793 - 10/14/09 09:21 AM (14 years, 5 months ago) |
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Perhaps I just need my morning coffee, but I'm not understanding how the thermostat can control humidity. Are the contacts of the thermostat wired to the humidifier? If so, it seems that due to evaporative cooling, when the humidifier kicks on, it would lower the temp slightly, preventing the thermostat from cycling. What am I missing? RR
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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houdinihar
Adventurous Learner
Registered: 09/12/08
Posts: 1,111
Last seen: 3 years, 11 months
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: Herbal_Elixer]
#11244816 - 10/14/09 09:29 AM (14 years, 5 months ago) |
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looks like you have some kings growing out there ratdog.
thanks for the temp controller/rh info.
houdinihar
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Herbal_Elixer
Strangerest
Registered: 05/05/09
Posts: 1,841
Loc: Reykjavik
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: RogerRabbit]
#11244862 - 10/14/09 09:37 AM (14 years, 5 months ago) |
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Are the contacts of the thermostat wired to the humidifier? Yes
If so, it seems that due to evaporative cooling, when the humidifier kicks on, it would lower the temp slightly, preventing the thermostat from cycling.
I believe this is in fact the function, it is calculated in the wet/dry bulb set up. Initially you get a wet bulb reading and a dry bulb reading once you have established a base RH in the chamber.. you use the conversion chart from wet to dry bulb to calculate where to set the thermostat initially as this will relate to a given RH value.. I think.. So, the humidifier would cycle on, then when the wet bulb temp is affected it should be returning to the base value of the desired RH you selected via the chart.. in turn, you have calculated the evaporative cooling into the mix... or at least I hope I get the idea right. Then I believe the system cycles a lot, with every temp fluctuation, constantly adjusting. But I am sure at some point it will level out, and cycle less... maybe I need more coffee too.. lol
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Edited by Herbal_Elixer (10/14/09 09:53 AM)
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anonjon
Partially Right
Registered: 11/03/08
Posts: 6,322
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: Herbal_Elixer]
#11246876 - 10/14/09 03:37 PM (14 years, 5 months ago) |
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How has this been working out in practice? RH real steady?
Do you mind posting a wider shot of the grow area? Where is the space for the trays?
-------------------- The above post is fictional, hypothetical, or downright nonsensical.
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Herbal_Elixer
Strangerest
Registered: 05/05/09
Posts: 1,841
Loc: Reykjavik
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: anonjon]
#11246936 - 10/14/09 03:47 PM (14 years, 5 months ago) |
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I am curious too.. I am also curious about you needing more thermostats.. Details brother!
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ratdog
wild capture trader
Registered: 08/16/09
Posts: 959
Loc: Colorado mount. top
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: Herbal_Elixer]
#11248746 - 10/14/09 08:20 PM (14 years, 5 months ago) |
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ok i am going to try this explaining thing
its gunna be @#$#% up but try to follow..............
its a line voltage thermostat with a sensor that is external and it is accurate to 1 degF.
that means it sees temp were ever you put the sensor. and being digital you can set a high limit for the on off switch to within 1 degree....so if its set to 73deg and it sees temp drop to 72 it turns on the switch and when temp hits 73 again it cuts off.
i know you got that part.
but why does it work for humidity.......
well you see the sensor is placed in the airstream of the fan which is cycling in 10% fresh air 24/7. this fan has a cup with water on it. and in the cup is the sensor which has a sock half on it.............ok the sock is cotton 1/2 is in the water and the other half is on the sensor which is attached totheeee...........LOL. any way the sock wicks water up to the sensor and the fan evaporates it. this gives you a lower temp than the temp on the dry bulb which is just another thermometer sitting on the shelf dry
example i have the thermostat set at 73 and the dry bulb inside the chamber reeds 76 so if you go to the calculator i linked above you can figure the rh%
now more in depth as why it works
as the water evaporates the temp is forced down you know like when you sweet you cool off. ok you got that evaporation cools and lowers temp.
soooo that still makes no sense why it works wellllll........
you see............ as the rh% goes up no matter the source of water being evaporated or amount the rate of evaporation goes down ..."important concept".......you know the air can only hold a 100% saturation of water. the less water there is in the air the faster it will evaporate water "edit -- and the cooler the reading" like wise more water in the air the warmer the reading untill both wet and dry read the same.
ok so the sock evaporating water reading a temp of 70deg and a dry bulb reading 76 reflects the %rh due to the fact that the amount of evaporation from the sock is high cooling it off. now as the air begins to get saturated from the sonic which is turned on because i have the thermostat set at 73 the temp goes up yes up i Sayers up because the air can not absorb water as much as it could before because as you add water RH% goes up slowing the evaporation from the sock letting it get wormer.
this is what makes it work the temp goes up on a wet bulb because evaporation is slower.the thermostat turns off the sonic when evaporation reaches a set point due to RH%
the higher the rh the slower the evaporation the lower the RH the faster the evaporation
the sock is colder in lower RH% and warmer in higher rh%
blah blah blah man i really hope this helps guys.
-------------------- some people just don't get it http://www.shroomery.org/forums/showflat.php/Number/11241796 so here is a video or two or three for you guys
Edited by ratdog (12/29/09 06:06 PM)
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ratdog
wild capture trader
Registered: 08/16/09
Posts: 959
Loc: Colorado mount. top
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Re: RH% control you can rely on with little to no fluctuation "Automated RH Tek" [Re: ratdog]
#11248804 - 10/14/09 08:30 PM (14 years, 5 months ago) |
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man i need to drink less coffee
in pactis i got this from a bag with x holes in it yesterday with the rh at 87%
then 24 hrs later i got this
same bag
geto chamber..
sensor in cup of water and fan
and this man i hope it works
and grows nice
-------------------- some people just don't get it http://www.shroomery.org/forums/showflat.php/Number/11241796 so here is a video or two or three for you guys
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