Home | Community | Message Board

Out-Grow.com - Mushroom Growing Kits & Supplies
This site includes paid links. Please support our sponsors.


Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop: PhytoExtractum Buy Bali Kratom Powder, Maeng Da Thai Kratom Leaf Powder   Unfolding Nature Unfolding Nature: Being in the Implicate Order

Jump to first unread post Pages: 1
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
OfflineDelinquentes
TIMMMAYYYYYYY
Male User Gallery

Registered: 02/07/06
Posts: 543
Loc: Hidin' in a bowl of rice
Last seen: 3 months, 16 days
Public Service Announcement: Hygrometer testing and calibration.
    #5309869 - 02/17/06 09:29 AM (17 years, 11 months ago)

I just found this on a web site. It seems like a great way to get a grip on the actual accuracy of you analog or digital hygrometer.

Quote:

Hygrometers (relative humidity gauges) may not be accurate. Mechanical hygrometers are frequently in error by more than 20 percent. Calibrate your hygrometer by sealing it in a plastic bag along with a cup containing ? cup of water and ? cup of table salt (Figure 3). After at least 12 hours at room temperature, the meter should read 75 percent relative humidity. Electronic meters tend to be more accurate, but they should also be calibrated

Wanna get a little more technical?

No problem. Luckily, as nature would have it, when salt and water (NaCl and H2O for you studious types), are in a saturated solution at equilibrium, the resultant humidity is 75%. This gives are a fantastic reference point to calibrate our hygrometers.





Was this information helpful?
You may choose only one


Votes accepted from (02/17/06 09:28 AM) to (No end specified)
View the results of this poll



--------------------
"The price of meat has just gone up,
and your old lady has just gone down!" ~~ Zappa



Click Here for a ghetto ozone generator Tek.

Want to learn more about ozone as a bacteria killer?  Click Here


Edited by Delinquentes (02/17/06 10:47 AM)


Extras: Filter Print Post Top
Offlinehyphae
born to grow
 User Gallery

Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 12 years, 8 months
Trusted Cultivator
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: Delinquentes]
    #5310138 - 02/17/06 11:33 AM (17 years, 11 months ago)

Also people should know the higher the RH reading the less accurate hygrometers are. I also use a damp washcloth wrapped around the hygrometer, the reading should be between 95-98% @ 74-77F. The best way IME is using a stationary psychrometer to calibrate hydrometers as these are very accurate at high RH's and totally take temps into consideration (relatively). Psychrometers use a chart BTW.


--------------------
Getting the most out of your casings!, A pinning strategy.
Oyster Shell "Flour" $2 for 1lb. a hell of a deal :wink:
Not what is overlay but rather what overlay is
Gas Exchange vs. FAE

"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"


Extras: Filter Print Post Top
InvisibleRoadkillM
Retired Shroomery Mod
Male User Gallery

Registered: 12/11/01
Posts: 22,674
Loc: Montana
Trusted Cultivator
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: Delinquentes]
    #5310186 - 02/17/06 11:44 AM (17 years, 11 months ago)



--------------------
Laterz, Road

Who the hell you callin crazy?
You wouldn't know what crazy was if Charles Manson was eating froot loops on your front porch!


Brainiac said:
PM the names with on there names, that means they have mushrooms for sale.



Extras: Filter Print Post Top
Invisibleagar
old hand
 User Gallery

Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else
Trusted Cultivator
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: hyphae]
    #5310195 - 02/17/06 11:47 AM (17 years, 11 months ago)


:grin: :thumbup: :wink:


--------------------


Extras: Filter Print Post Top
OfflineDelinquentes
TIMMMAYYYYYYY
Male User Gallery

Registered: 02/07/06
Posts: 543
Loc: Hidin' in a bowl of rice
Last seen: 3 months, 16 days
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: agar]
    #5310245 - 02/17/06 12:14 PM (17 years, 11 months ago)

Sorry for redundant information Roadkill.

That's what I get for trying :wink:


--------------------
"The price of meat has just gone up,
and your old lady has just gone down!" ~~ Zappa



Click Here for a ghetto ozone generator Tek.

Want to learn more about ozone as a bacteria killer?  Click Here


Extras: Filter Print Post Top
InvisibleRoadkillM
Retired Shroomery Mod
Male User Gallery

Registered: 12/11/01
Posts: 22,674
Loc: Montana
Trusted Cultivator
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: Delinquentes]
    #5310283 - 02/17/06 12:26 PM (17 years, 11 months ago)

np bro!~


thats what this site is all about...

redundant information!~

:smirk:


tc


--------------------
Laterz, Road

Who the hell you callin crazy?
You wouldn't know what crazy was if Charles Manson was eating froot loops on your front porch!


Brainiac said:
PM the names with on there names, that means they have mushrooms for sale.



Extras: Filter Print Post Top
Offlinehyphae
born to grow
 User Gallery

Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 12 years, 8 months
Trusted Cultivator
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: Roadkill]
    #5310893 - 02/17/06 03:56 PM (17 years, 11 months ago)

BTW theres more than one way to calibrate a hygrometer :smile: Really! :wink:


--------------------
Getting the most out of your casings!, A pinning strategy.
Oyster Shell "Flour" $2 for 1lb. a hell of a deal :wink:
Not what is overlay but rather what overlay is
Gas Exchange vs. FAE

"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"


Extras: Filter Print Post Top
InvisibleRoadkillM
Retired Shroomery Mod
Male User Gallery

Registered: 12/11/01
Posts: 22,674
Loc: Montana
Trusted Cultivator
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: hyphae]
    #5310899 - 02/17/06 03:57 PM (17 years, 11 months ago)

yeah bro I know...

but if he had done a search he would have found them all.

:grin:


--------------------
Laterz, Road

Who the hell you callin crazy?
You wouldn't know what crazy was if Charles Manson was eating froot loops on your front porch!


Brainiac said:
PM the names with on there names, that means they have mushrooms for sale.



Extras: Filter Print Post Top
Offlineonetime
onetime
 User Gallery

Registered: 11/13/03
Posts: 3,609
Last seen: 13 years, 1 month
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: Roadkill]
    #5310941 - 02/17/06 04:16 PM (17 years, 11 months ago)

I can get mine calibrated by the control3 company every year I belive for only the cost of shipping both ways.


--------------------

See?
Yes, with my own three eyes.
Depression, Misspells , wanting everying thing i cant have haveing nothing i want


Extras: Filter Print Post Top
Offlinehyphae
born to grow
 User Gallery

Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 12 years, 8 months
Trusted Cultivator
Re: Public Service Announcement: Hygrometer testing and calibration. [Re: Roadkill]
    #5311200 - 02/17/06 05:13 PM (17 years, 11 months ago)

Quote:

Roadkill said:
yeah bro I know...

but if he had done a search he would have found them all.

:grin:



Cool! I wasn't sure they were all out there? :wink:


--------------------
Getting the most out of your casings!, A pinning strategy.
Oyster Shell "Flour" $2 for 1lb. a hell of a deal :wink:
Not what is overlay but rather what overlay is
Gas Exchange vs. FAE

"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"


Extras: Filter Print Post Top
Jump to top Pages: 1

Shop: PhytoExtractum Buy Bali Kratom Powder, Maeng Da Thai Kratom Leaf Powder   Unfolding Nature Unfolding Nature: Being in the Implicate Order


Similar ThreadsPosterViewsRepliesLast post
* hygrometer, perfectly calibrated but still wrong? rebelmoon 977 5 04/01/02 12:27 AM
by Alpheratus
* Checking Your Hygrometer Calibration Nighted 2,465 2 02/26/02 06:24 AM
by cookiewhore
* Testing pH NFNF 921 6 05/04/03 11:16 AM
by SixTango
* Moldy shrooms.... can I extract?! HELP! Splat 7,554 8 06/28/03 05:05 PM
by Alkaloids
* Inoculation Tip Fungi_x 428 3 09/03/03 11:06 PM
by Tremor1127
* hygrometer nighthunter 677 3 02/03/05 10:06 AM
by LaughingJim
* Easy way to test your HYGROMETER!! wicish1 1,059 5 03/11/04 10:02 PM
by fIsh in my head
* testing a digital hygrometer. protocoldroid 1,298 3 08/21/01 04:11 PM
by protocoldroid

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Shroomism, george castanza, RogerRabbit, veggie, mushboy, fahtster, LogicaL Chaos, 13shrooms, Stipe-n Cap, Pastywhyte, bodhisatta, Tormato, Land Trout, A.k.a
1,411 topic views. 26 members, 169 guests and 40 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2024 Mind Media. Some rights reserved.

Generated in 0.061 seconds spending 0.043 seconds on 20 queries.