Posted 11 November 2005 - 10:45 AM
Posted 11 November 2005 - 01:56 PM
Mine gives wet bulb and dry bulb temp, humidity, dew point, enthalpy and some other things.
Posted 11 November 2005 - 03:51 PM
Posted 12 January 2006 - 04:31 AM
My foaf thinks alot of her problems are because of humidity. She is going to get a decent Hygrometer soon but has already had to send one back as it would not read over 80% ( from the ONLY cigar store in NZ).
She is willing to spend some money to get something that will work. Her options are:
Ship a decent one (the polytherm from the arcives) from overseas
Ask to trade (not that she has alot ... A single GT sporeprint taken in a glove box)... long shot but some one might have a spare around??
or get a digital one from the local jay car ( our radio shack). Will it servive the with all the water in the air? will it short out the unit over time?
Posted 12 January 2006 - 07:36 AM
I can tell you by experience that the radio shack digitals can not stand up in the high humidity. I tried one and after it got over 90% or more the entire liquid crystal display screwed up then didn't display at all. After drying it out with a hair dryer, it worked again and I saved it.
What kind of problems is your friend experiencing she believes are due to humidity?
It would also be good to describe her set up and daily care/operations so others here can better help determine and suggest a solution(s).
Posted 12 January 2006 - 07:50 AM
Posted 12 January 2006 - 11:02 AM
Posted 12 January 2006 - 12:11 PM
Posted 12 January 2006 - 12:13 PM
mechanical synthetic fiber
get two so you can compare readings
Posted 12 January 2006 - 03:07 PM
Her set up is : a 60L (15.8gallon) plastic bin the sides painted black (on the outside of the bin) with 3 inches of grow rocks in the bottom and 2 inches of water. A small air stone and fish tank heater are under the waterline and bubble away soon after she wakes up to just befor she goes to bed. She also puts a light above the bin for around 12 hours per day. temps in the bin range from 70-84f (hard to keep stable thinking about trying to insulate but moving flats soon) room temps are around 60-70f (more often in the lowere part of that) She suspects its this large difference that is causing alot of condensaton on the lid and walls... not high humidity. Her cakes seem to dry out and give small fruit. She also had a lot of aborts in the 2nd flush as she was misting and didnt do a decent job and porbibly put a lot of water drops on the new pins. The fruit also tend to open very early.
She has also found a 7w fluro lamp. Its quite dull but will this be enough to get cakes to pinn well? she had good pinning when using a 20w energy saver, equivilant to a 100w incandesant.
thanks for the help it is gratly apprecated
Posted 12 January 2006 - 05:00 PM
Perlite will work a lot better than grow rocks. Also try not to have too much standing water in the perlite. This gives more surface area for evapouration from the perlite.
As far as lighting goes, all you need is a bit of ambient light to initiate pinning. A clear cover and leave the lights on in the room for a bit.
Posted 31 January 2007 - 01:13 PM
was wondering if any1 could link me to that post in which u check ur hygrometers accuracy, i cant find it?
has summin to do with putting salt in a tin with the hygrometer?
btw got it after all places at a cigar store cuz i heard sum1 mention it, was in the first store of its kind i had to look
spent hours looking for a normal therm and didnt see one proper one :( so if u looking, go to cigar store and get a sweet combo :)
Posted 31 January 2007 - 01:44 PM
>> calibrate <<
Here's the procedure you should use:
Get a bottle cap of some sort - like the kind you might get off of a beer! Fill it with regular ole' table salt. Then drop a few drops of water on the salt. DO NOT put to much water on the salt. The salt should only be damp, and not a liquid solution. It should be like moist sand, not like soft mud.
Then put the bottle cap of salt and your hygrometer in a see-through, sealable container. I like to use a large freezer bag. Seal the freezer bag or other container. Wait several hours (about six). The humidity inside the bag will be 75%. Compare it to your hygrometer. You will then know exactly how far off your hygrometer is.
Posted 31 January 2007 - 02:15 PM
put in a ziplock with yer hygrometer ..Seal the bag and wait an hour to get your reading...Make sure no water touches the sensing element...
It should read 100...
Its often easier to just make the correction in your head for minor deviations
than it is to adjust the calibration screw...
On mine when it reads 97% - it is really 100...
Posted 31 January 2007 - 03:00 PM
Posted 31 January 2007 - 03:39 PM
spose leaving it in all the time with high humidity would only affect its life span no?
Posted 31 January 2007 - 03:45 PM
Posted 31 January 2007 - 04:04 PM