Dry box normal humidity level


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Winduhs

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Oct 30, 2006
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Hougang
#1
Hi everyone,

For those who own a dry box, what is the humidity level shown on your hygrometer? Mine is consistently between 60-70%, is that considered too high? If so, what can I do about it? The box is new, barely a week old, and I just unwrapped the silica gel after I bought it. The box sits on a low cupboard away from the window in a non-aircon room. TIA! :)
 

amaninus

New Member
Nov 18, 2006
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Punggol
#2
Hi everyone,

For those who own a dry box, what is the humidity level shown on your hygrometer? Mine is consistently between 60-70%, is that considered too high? If so, what can I do about it? The box is new, barely a week old, and I just unwrapped the silica gel after I bought it. The box sits on a low cupboard away from the window in a non-aircon room. TIA! :)
Hi,

Mine was hovering in that region too. That's why I change to a dry cab. Did a search in the forum, most of them set ard 50%. I am acheiving 40-50% now. :)
 

kgston

New Member
Jan 23, 2007
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East
#4
Oo.. really? I use a lock & lock box with a digital hygromenter in it and silica gel and it says 51%...and i already double checked my hygrometer reading in a dry cab alrdy...haha , i guess u need abit of luck...
 

Winduhs

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Oct 30, 2006
152
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Hougang
#6
Thanks all..at least I know my dry box is not faulty or something...I may just put a thirsty hippo inside soon :p
 

Nov 25, 2005
1,105
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North
#7
Oo.. really? I use a lock & lock box with a digital hygromenter in it and silica gel and it says 51%...and i already double checked my hygrometer reading in a dry cab alrdy...haha , i guess u need abit of luck...
may i ask...where did u get the digital hygrometer (does it run on batt?) and do they sell analog ones that run without batt?
 

Scuderia

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Sep 7, 2006
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Bt. Merah
#10
Ideally is around 45-65 region. Too low the rubber rings on your lenses might turn white or brittle especially on older lenses. It happened to my Tokina MF lens.
Too high, it beats the purpose to have a dry cab.

A new dry cab usually needs a few days or sometimes even weeks to settle down depending on the insulation on the doors, the drying mechanism and the location of the cab. Try to set the power towards the high side and slowly tune down to the desired level. Do not put in anything inside the cab first as it might interfere with the readings. If your dry cab comes with a analog hygrometer, try to put a digital one side by side to get a 2nd reading. Sometimes the analog meter gives erratic results. Others may even try to smear non corrosive grease along the insulating foam to enhance the insulation.
BTW, anyone knows where to find a cheap digital hygrometer? Got mine from BKK for less than 10 dollars. Can't seem to find one in SG. Can anyone advice?;)
 

Dec 14, 2006
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新加坡
#11
i got a dry box is the vccum type... i suck the air out but the humudity level din went down, so i got a thirsty hippo in end up sometime down to 20 - 30%... so i need to check reguarly to make sure in stay @ 40 - 50%... thinking to get a dry cabinet...
 

ipin

Senior Member
Nov 21, 2005
5,387
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#13
i got a dry box is the vccum type... i suck the air out but the humudity level din went down, so i got a thirsty hippo in end up sometime down to 20 - 30%... so i need to check reguarly to make sure in stay @ 40 - 50%... thinking to get a dry cabinet...
Just get one and save on the hassle! :bsmilie:
It'll be worth it. Think of the valus of your camera system, what is $1xx-$2xx for the peace of mind. ;)
 

IceMocha

New Member
May 23, 2007
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The Upper Room
#14
Mine is consistently between 60-70%
60-65% is the day time humudity of my bedroom when the day door is open.

The humidity drop to 50-55% 1-2 hrs after the air-con is turned on. My room has air-con on between 11pm to 7 am.

If the dry box register 60-70%, you might as well put it in the open. i.e. 65-70% may be higher than your room humudity. The other way is to open your dry box and only close it 3 hrs after turning on your air-con. At least you know that the humubity should be in the low 5x% range.

Becareful with air-con. Some air-con have this blow-dry feature, i.e. the fan continue to blow for 30 mins after the air-con is turned off. The purpose is to dry the coil. I noticed the humudity jump all the way to 72-74% in the air-con room withh door still closed.

I have a desktop analog hygrometer and another digital hygrometer to monitor my room humudity before deciding to buy a dry cabi. The stupid blow dry feature cause me to pay for the dry cabi.
 

kgston

New Member
Jan 23, 2007
1,303
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East
#15
may i ask...where did u get the digital hygrometer (does it run on batt?) and do they sell analog ones that run without batt?
Well.. i got mine at Homefix. cost me $30+.. it has a temp. reading too.. They do have analog ones.. but the one i saw was huge... like a clock..lols.. and yes, digital hygrometers run on batt, mine runs on 1 AAA batt.
 

May 13, 2007
206
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0
Singapore
#16
My dry box settles at around 50%. Need to monitor and change silica gel from time to time.
 

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