humidity in racks

[newbtile]

OK so after building my first rack I realized how many flaws I had so now I'm building another rack and fixing them all . M flaws were cheapo. Thermostat and seting up the tubs with lids instead of shelvesbeing the lids and the tubs come out sideways instead of long ways witchywmn makes It very difficult to Handle the tubs but still all my temps and humidity is OK.so with a new design and flexwatt and different tubs and a good tstat my rack will be better and more efficient So my question is when i have it set up and my humidity is good in the tubs right now i have a humidity gauge in each tub will that work in the rack or iowhat else would be the most efficient in regulating. The humidity

[The Serpent Merchant]

what type of humidity gauge are you using?

most people don't have a hygrometer in every tub as it gets very expensive to do so. I would get 1 really good hydrometer and use it to check the tubs individually. to regulate humidity in tubs all you have to do is add or cover holes in increase or decrease air flow into/out of the tub.

[newbtile]

I am using the ones attached to the walls and I realize there gonna get expensive down the road what is a good one that's budget friendly and thanks

[The Serpent Merchant]

I am using the ones attached to the walls and I realize there gonna get expensive down the road what is a good one that's budget friendly and thanks

of you mean the ones like these?



if so you should know that these are terrible, they only last a short period of time before they completely stop working, and even when they do work they are only accurate to something like +/- 20%

[newbtile]

LOL ya that's it nice to find out there that bad on accuracy. OK the herpstat I believe its called is a very popular tstat for BP owners is there a hygrometer that is widely used that's fast and accurate that would be great fir a rack setup

[kitedemon]

Most digital ones I have tested in 6 months are also out by 15-35% Rh the don't work at all.The test is easy and I would highly recommend one that can be calibrated and an analogue style. Look for a metal face card (not paper) and a calibration screw. The bi metal spring type can tolerate dust dirt and some knocking about. Digitals that use a resistive sensor any thing that altered the resistance (dirt cord damage salt uranates) cause them to be come unreliable. The dirtier the worse they get .

Personally I like the western instruments they are certified as they leave the factory I have 26 of them now and the last set I bought (18) all 18 were with in 3% of each other and that was confirmed to be accurate.

The best of the three digital accurites I had was -15% and the worst was 32%+ The only good thing about them was they did not argue when I told them it was reading out side the specs (+/-20%) and replaced it under warrantee, twice, sadly the last one was in specs 15% and 1.7ºF + I gave it away.

I seem to be fussier than most I will not accept worse than 5% and 1ºF in error.

http://www.amazon.com/Analog-Hygrome.../dp/B0007VWEQA


A salt test (google) will tell you accuracy fast it is very hard on digital units so you get one maybe two tests before the test kills it.

[kitedemon]

You might think on a better way since it is a rack and they 90% of the time are in a regulated room just humidify the room to 60% punch lots of holes in the tubs (healthier less chance of RI that way) and then just check the room itself.