Home | Community | Message Board
You are not signed in.
Sign In New Account
Forum Index Search Posts Trusted Vendors Highlights Galleries FAQ User List Chat Store Random Growery


This site includes paid links. Please support our sponsors.

Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
Threaded Mode Threaded  Previous topic Previous  View all topics Index  Next topic Next 

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!

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Some of these posts are very old and might contain outdated information.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.
hygrometer calibration
    #2859435 -

i put my shower on the hottest setting and steamed up the bathroom to see if my hygrometer would make it to 100% but it never went past 92%. i'm sure there was 100% humidity in the room because the water was collecting on me and beading down my body like sweat. does this mean that my hygrometer will always read 8% lower than the true humidity?


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

ca'rouse (k-rouz)
intr.v.
To engage in boisterous, drunken merrymaking.

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: TODAY]
    #2860335 -

a good way to check it is to put it in a plastic bag with some salt that has a few drops of water in it, it should read right at 75%

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: discoabe]
    #2861441 -

i did that and it got to about 70%. so i'm assuming that i'm about 5-8% low.


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

ca'rouse (k-rouz)
intr.v.
To engage in boisterous, drunken merrymaking.

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: TODAY]
    #5399688 -

Do you want to but a couple of drops of water in like a cup of salt or do you want to make it like wet salt? because i have it where the salt is like wet and you could drain a little water off it but its not disolving in it. Thanks for your help!


--------------------
None of the posts that are posted by this member are real. They are all fake and are for fictional use only. This member does not actually grow any mushrooms he/she just posts for fun.

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: buckallyall]
    #5399720 -

Wrap the hygrometer in a damp towel for half an hour. Unwrap and adjust the screw on the back so it 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

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: RogerRabbit]
    #5399734 -

Its a digital so i cant adjust it. Can I put a towel that is wet around it and see if it reads 98 and if not thats what its off by???


--------------------
None of the posts that are posted by this member are real. They are all fake and are for fictional use only. This member does not actually grow any mushrooms he/she just posts for fun.

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: buckallyall]
    #5399753 -

The salt method:

Take a small cup and put about 1/4 cup of salt in it. MOISTEN the salt and stir it. You want wet salt, not salt water. Seal that cup and your hygrometer in an air-tight vessel. Leave it there over night and the hygrometer should read exactly 75% RH. If not, you have to factor the difference in to your calculations.


--------------------
"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
Re: hygrometer calibration [Re: Delinquentes]
    #5399770 -

kool

Thats what I was looking for the fact that it should be wet salt not just salt with a couple of drops in it. Thanks for your help


--------------------
None of the posts that are posted by this member are real. They are all fake and are for fictional use only. This member does not actually grow any mushrooms he/she just posts for fun.

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: Delinquentes]
    #5399781 -

Delinquentes said:
The salt method:

Take a small cup and put about 1/4 cup of salt in it. MOISTEN the salt and stir it. You want wet salt, not salt water. Seal that cup and your hygrometer in an air-tight vessel. Leave it there over night and the hygrometer should read exactly 75% RH. If not, you have to factor the difference in to your calculations.


I just did this last night with mine, it works like a charm, Im interested in the wet towel idea also RR is a vet he knows his shit.


--------------------
Easy Poo Cake Tek

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: MindsEye]
    #5399811 -

How did yours turn out was it on 75??


--------------------
None of the posts that are posted by this member are real. They are all fake and are for fictional use only. This member does not actually grow any mushrooms he/she just posts for fun.

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: buckallyall]
    #5399965 -

it was at 74%rh


--------------------
Easy Poo Cake Tek

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: MindsEye]
    #5399966 -

kool


--------------------
None of the posts that are posted by this member are real. They are all fake and are for fictional use only. This member does not actually grow any mushrooms he/she just posts for fun.

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: TODAY]
    #6267388 -

sorry to thread hijack but I was wondering can salt substitute be used to test the hygrometer? The stuff I'm using is made up of Potassium chlroide, fumaric acid, tricalclium phosphate and monocalcium phosphate. Would the rh of this substance still be the same as salt when a bit of water is added? Thanks

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: hfactor]
    #6267428 -

Use the damp 'wrap in a towel' test.  Salt does not give an accurate reading at higher humidity.
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

Extras: Filter Print Post Top
Re: hygrometer calibration [Re: hfactor]
    #6267438 -

hfactor said:
sorry to thread hijack but I was wondering can salt substitute be used to test the hygrometer?  The stuff I'm using is made up of Potassium chlroide, fumaric acid, tricalclium phosphate and monocalcium phosphate.  Would the rh of this substance still be the same as salt when a bit of water is added?  Thanks


It'll work , but it will only read 37 1/2% . It's only half salt :wink: J/K LMAO .

Peace,Love,Happiness and Harmony
:heart: Hippie Chick  :mushroom2:


--------------------
Peace,Love and Happiness
:heart: HC :mushroom2:

Freedoms just another word for nothing left to lose..............

I LUV My Greenhouse
http://www.shroomery.org/forums/showflat.php/Number/5545848#5545848

My First Pans
http://www.shroomery.org/forums/showflat.php/Number/6212058#6212058

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

Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
Threaded Mode Threaded  Previous topic Previous  View all topics Index  Next topic Next 

Similar ThreadsPosterViewsRepliesLast post
* Analog Hygrometer - Calibration and Electronic Digital Hygrometer bbox244 2,895 2 06/15/11 04:10 PM
by sage1o1
* Checking Your Hygrometer Calibration Nighted 2,544 2 02/26/02 08:24 AM
by cookiewhore
* Will Kosher salt work for Hygrometer calibration?
( 1 2 all )		 Lucid_Euphoria 4,764 21 07/15/09 10:02 AM
by Lucid_Euphoria
* Hygrometer Calibration (No adjustment screw) abltsandwich 2,807 12 12/21/10 06:38 PM
by abltsandwich
* Hygrometer Calibration Question ActionJackson 484 3 10/08/12 03:35 PM
by ActionJackson
* Hygrometer Calibration Method Debate insipidtoast 1,220 6 04/07/10 04:37 PM
by insipidtoast
* $5 analog hygrometer (+free shipping)
( 1 2 3 4 all )		 Boris 6,819 79 01/27/11 11:42 AM
by PEMMs
* Two Hygrometers - both calibrated - Diff readings inside FC *pics*
( 1 2 all )		 boogiem0nst3r 5,655 20 05/12/10 08:13 PM
by windex

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, the_chosen_one, LogicaL Chaos, 13shrooms, hamloaf, cronicr, Stipe-n Cap, Pastywhyte, bodhisatta, Tormato, Land Trout, A.k.a
2,302 topic views. 16 members, 451 guests and 223 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2026 Mind Media. Some rights reserved.

Generated in 0.025 seconds spending 0.007 seconds on 14 queries.