(HELP) Calibration of your Hygrometer

[sagiboy]

hipp tnx man, great info...
cant get more than 94%... so i tried it...
i used coarse salt, not fine... should i try fine salt+couple drops of water?
(edit: it sat like that 6h...as written in the manual...)
my gauge cant be more than 6%...
i must done something wrong...

I NEED ADVICE FROM EXPERT

btw, ive opened up the Hygrometer and the "bug" of the humidity is the size of 1 rice rye... ill add pic of that too...
was taken from
http://forums.mycotopia.net/glossary...ssary&term=125

"Calibration of your Hygrometer (Humidity Gauge)

Analog hygrometers are manufactured with a factory tolerance of +/- 5% points of humidity (and sometimes more) through the normal range of 40-80%. Although humidity gauge is pre-set at the factory, its' calibration may be off within this range for various reasons.

A simple, easy to do at home means of calibrating hygrometers uses standard salt and a sealed container. Table salt, when used properly, will maintain an exact 75% humidity in a perfectly sealed environment. So, to do this, you'll need three items. First, obtain an airtight container such as a see-through tub with a tight fitting snap-on lid (the kind usually found in most kitchens). Alternately, a heavy-duty zip-lock bag will do. Second, you'll need about a teaspoon of salt. Third, any small, shallow open container is needed (to hold the salt in) such as a screw cap from a plastic bottle.

Place the salt in its small container and add a few drops of water to moisten it. Don't dissolve it yet. With just a few drops of water, you'll get what you need, which is damp salt. Next, carefully place the salt in its small container, along with your hygrometer, into the airtight container. Please do not get any moistened salt on the gauge. Also, check to see that the starting point (current reading) is anywhere in the 40% to 80% range.

Seal the container tightly. Note: if you have any doubt as to whether or not it is a perfectly sealed environment, double-it-up by putting it in a second container, or into a second baggie. Do not try to remove the remaining air trapped inside. Now, wait for at least 5 or 6 hours until the environment has stabilized. Do not open the container. Read the gauge's humidity % level. It should be exactly 75%. If it is not, note the deviation as being the amount your hygrometer is out of calibration. If for example, it reads 68%, the gauge is 7% low. If on the other hand it reads 80%, the gauge is 5% high."

[Lazlo]

The easiest, quickest and most effective way of calibrating a hygrometer is to simply put it outdoors on a table where it gets fresh air. Not somewhere like the ground, exc. that will interfere with the reading. Then simply go to underground weather.com and put in your zip code to see what the rh reading is. I hang my analogs from the close line and allow them to set for 15 minutes. See what the updated reading is on underground and then set to that. Check again 15 minutes later to see if needs further adjustment. Repeat as necessary. 1 hour tops you're done and it's perfect.

[sagiboy]

im from Israel... and i live 5km from the mideteranean sea... so its very moist here all day long... between 60-88... and hot as hell... 35c. (28c at 4am-5am)

im just worried that in the primordia formation less than 95% wont get me as much pins as it could give...

i think im just young and un-Experienced... too worried of things i shouldnt be worried... and not worried because of fear, worried because i love it so much... i have 4 pets (3 cats+dog) and i love growing as much as i love my animals... hehe..

[Lazlo]

Ooops, that's www.wunderground.com

Data for cities in Israel are available. The salt thing seems to work well too, but takes too damn long for me. What I do works perfectly for me.

[Ben Dover]

Originally Posted by Lazlo

Ooops, that's www.wunderground.com

Data for cities in Israel are available. The salt thing seems to work well too, but takes too damn long for me. What I do works perfectly for me.

Thats the weather site I use. It's a damn good site!

I love it how you can see the Doppler radar storms cells are marked with a description on how intense they are and which way they are moving .