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OfflineSolidcell
tolerance++;
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Registered: 01/20/06
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Could this possibly be 96% rH?!
    #5501154 - 04/10/06 08:04 PM (18 years, 2 months ago)

This tub is 19qt holding 4 pint BRF jars. I'm testing to make sure my hygrometer isn't correct. This Ultra sonic is running on low and it's been left to sit for around 5 mins. The hygrometer (Taylor 1459) still reads 96 as it had with just perlite.




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Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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Invisiblecappa
Nerd
Registered: 02/12/06
Posts: 854
Re: Could this possibly be 96% rH?! [Re: Solidcell]
    #5501160 - 04/10/06 08:05 PM (18 years, 2 months ago)

Salt test time!


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Their are 10 types of people. Those that understand binary, and those who don't.
~Cappa.

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OfflineSolidcell
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Registered: 01/20/06
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Re: Could this possibly be 96% rH?! [Re: cappa]
    #5501183 - 04/10/06 08:09 PM (18 years, 2 months ago)

I was thinking about it, I really should, but at higher rHs hygrometers start to wig out. I have another remote I'm not using, so I could, and will. But in the mean time, does anyone know if this would be unlikely to be a 96% environment?


--------------------
Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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Invisiblecappa
Nerd
Registered: 02/12/06
Posts: 854
Re: Could this possibly be 96% rH?! [Re: Solidcell]
    #5501201 - 04/10/06 08:13 PM (18 years, 2 months ago)

A hummer running in a 19qt sealed conatainer for 5 minutes?

No it would be 100% rh.


--------------------
Their are 10 types of people. Those that understand binary, and those who don't.
~Cappa.

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OfflineSolidcell
tolerance++;
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Registered: 01/20/06
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Re: Could this possibly be 96% rH?! [Re: Solidcell]
    #5501233 - 04/10/06 08:20 PM (18 years, 2 months ago)

That's what I figured. This thing is supposed to read up to 99% and both remotes (purchased from different sources) read only up to 97 at most EVER.


--------------------
Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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OfflineRazman
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Re: Could this possibly be 96% rH?! [Re: Solidcell]
    #5501453 - 04/10/06 09:10 PM (18 years, 2 months ago)

a humidifyer on for 5 mins every hour in my THREE SHELF GREENHOUSE is overkill!! i only use coolmists now..

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OfflineSolidcell
tolerance++;
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Registered: 01/20/06
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Re: Could this possibly be 96% rH?! [Re: Solidcell]
    #5501469 - 04/10/06 09:14 PM (18 years, 2 months ago)

The other remote reads 72% in the salt bag, so if the other one was -3% as well, then it would be at 99% (it's max but supposed to be 100% where it is) in the box. Bummer there's no way to calibrate these.


--------------------
Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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Offlineshopdropper
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Re: Could this possibly be 96% rH?! [Re: Razman]
    #5501482 - 04/10/06 09:16 PM (18 years, 2 months ago)

read the instructions that came with your thing, i stole a couple from walmart.... and they have a max on them like mine will only read upto 95% humidity! so ill never know if i have 100% or whatever. im sure thats what your problem is.


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DON'T TRY THIS AT HOME: no guarantees can be made about the accuracy of the information herein. The information dicussed in these posts is purely hypothetical, and for intelectual purposes only. Any similarity between internet chat and real life is pure coincidence.

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OfflineSolidcell
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Registered: 01/20/06
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Re: Could this possibly be 96% rH?! [Re: shopdropper]
    #5501514 - 04/10/06 09:23 PM (18 years, 2 months ago)

The specs say it is accurate up to 99% like I've said.


--------------------
Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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OfflineRogerRabbitM
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Re: Could this possibly be 96% rH?! [Re: Solidcell]
    #5501635 - 04/10/06 09:58 PM (18 years, 2 months ago)

Perlite or an ultrasonic will give you 99% humidity. Digital hyrometers are junk in my opinion. Get a mechanical one from a cigar shop and calibrate it.
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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OfflineSolidcell
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Registered: 01/20/06
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Re: Could this possibly be 96% rH?! [Re: RogerRabbit]
    #5501715 - 04/10/06 10:20 PM (18 years, 2 months ago)

I have a Cigar Perfect and it's calibrated perfectly. It only goes to 90 and even when it gets close it wigs out. I bought the digital after because the CP after I couldn't rely on it.


--------------------
Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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Offlinealsnow469
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Re: Could this possibly be 96% rH?! [Re: cappa]
    #5501909 - 04/10/06 11:28 PM (18 years, 2 months ago)

My gauge is just like yours

and it reads 96. It was on

96 a week after I let the FC

go dry

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OfflineSolidcell
tolerance++;
Male

Registered: 01/20/06
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Re: Could this possibly be 96% rH?! [Re: alsnow469]
    #5501954 - 04/10/06 11:43 PM (18 years, 2 months ago)

hah, I seriously doubt that any hygrometer under $150 is really that accurate, it seems that none is really that reliable.


--------------------
Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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Invisiblecappa
Nerd
Registered: 02/12/06
Posts: 854
Re: Could this possibly be 96% rH?! [Re: Solidcell]
    #5501968 - 04/10/06 11:48 PM (18 years, 2 months ago)

Quote:

Solidcell said:
hah, I seriously doubt that any hygrometer under $150 is really that accurate, it seems that none is really that reliable.




I agree with the acception of the wet bulb type.

Anyways, I have the same unit you do and it goes to 99% if I kill my FAE fan and let the hummer run by itself for a few minutes. I dunno why yours says 95 or 96 or whatever. Try RR's 'wrapped in a damp towel' tek or whatever it was. It's faster than a salt test and more in the range of the what we use them for anyways.


--------------------
Their are 10 types of people. Those that understand binary, and those who don't.
~Cappa.

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OfflineSolidcell
tolerance++;
Male

Registered: 01/20/06
Posts: 754
Loc: Memphis & 53rd
Last seen: 15 years, 9 months
Re: Could this possibly be 96% rH?! [Re: cappa]
    #5502017 - 04/11/06 12:00 AM (18 years, 2 months ago)

I rememeber looking for that tek before and I couldn't find it. Have you seen it before? I've only heard of it.


--------------------
Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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OfflineRogerRabbitM
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Re: Could this possibly be 96% rH?! [Re: Solidcell]
    #5502217 - 04/11/06 01:13 AM (18 years, 2 months ago)

It's for mechanical hygrometers. Wrap in several layers of damp towel for half an hour. Remove and adjust the screw on the back so the needle reads 98%.
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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Invisibleagar
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Re: Could this possibly be 96% rH?! [Re: RogerRabbit]
    #5502352 - 04/11/06 03:39 AM (18 years, 2 months ago)

http://www.technika.com/Sper/s736740.htm
$14  :grin: accurate & no batteries. :thumbup:


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OfflineSolidcell
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Re: Could this possibly be 96% rH?! [Re: agar]
    #5502665 - 04/11/06 08:33 AM (18 years, 2 months ago)

Thnkas agar, I guess this will be the next one I eventually buy.


--------------------
Psychedelic Jar Project

"It is dangerous to be right when the government is wrong." -Voltaire

"Everything that I accepted as being true up to now I acquired from the senses or through the senses. However, I have occasionally found that they deceive me, and it is prudent never to trust those who have deceived us, even if only once." -Descartes

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InvisibleDoomhammer
EmancipateYourselves fromMental Slavery

Registered: 05/01/00
Posts: 100
Re: Could this possibly be 96% rH?! [Re: agar]
    #7741634 - 12/10/07 05:02 PM (16 years, 6 months ago)

Has anyone bothered to try this hygrometer recommended by Agar? how well/bad does it work?

This article on wikipedia tells why it's so hard to get an accurate hygrometer reading... maybe it's best just to live without one?

http://en.wikipedia.org/wiki/Hygrometer

"Humidity measurement is among the more difficult problems in basic metrology...Hygrometers must be calibrated in air, which is a much less effective heat transfer medium than is water, and many types are subject to drift so need regular recalibration. A further difficulty is that most hygrometers sense relative humidity rather than the absolute amount of water present, but RH is a function of both temperature and absolute moisture content, so small temperature variations within the air in a test chamber will translate into RH variations."


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