difficulty with precision setting with dry cabinet


Status
Not open for further replies.

gazzatan

New Member
Jun 16, 2009
15
0
0
#1
i would have preferred a digitally controlled unit, but the budget only allowed the digi cabi DB-036. It's perfectly fine except for the fact that it's analogue controlled .... and the dial is not the most precise instrument.

It seems like there are 2 recommended ranges floating around - RH40-45 and RH45-50. Not knowing which is more ideal I was shooting for the middle, ie 45% - but no matter what I do I don't seem to be able to get the 45% reading. It's either 49/48 (possible 47 with the airconditioning turned on) ... or 43/42. I can't find the sweet spot on the dial that hits the 45% mark.

So my question is which is better. Leaving it at 49/48 ... or turning it down to 43/32.
 

Ninestar

New Member
Jun 18, 2009
849
0
0
Ang Mo Kio
#2
Try setting the dial ard the 1 o'clock or 2 o'clock position. Shld be able to achieve between 43%-48%. Once achieved, try to touch the dial again.

For mine, i getting ard 43%-46%. So far so good. :D

Normally is ard +-5%.
 

Deadpoet

Senior Member
Oct 18, 2004
4,619
0
0
#3
i would have preferred a digitally controlled unit, but the budget only allowed the digi cabi DB-036. It's perfectly fine except for the fact that it's analogue controlled .... and the dial is not the most precise instrument.

It seems like there are 2 recommended ranges floating around - RH40-45 and RH45-50. Not knowing which is more ideal I was shooting for the middle, ie 45% - but no matter what I do I don't seem to be able to get the 45% reading. It's either 49/48 (possible 47 with the airconditioning turned on) ... or 43/42. I can't find the sweet spot on the dial that hits the 45% mark.

So my question is which is better. Leaving it at 49/48 ... or turning it down to 43/32.


Why dont you spend more time shooting than worrying about the fluctuation of the RH between 40, 45 or 50. IT MAKES NO DIFFERENCE for the your purposes.
 

Diavonex

Senior Member
Sep 23, 2008
3,641
0
0
Admiralty
#4
As long as it's between 40% to 55% it's okay. This is no rocket science.

Every time you open the door, it'll fluctuate again.
 

ed9119

Moderator
Staff member
Mar 11, 2002
11,014
38
48
56
Singapore
www.walkeast.com
#5
i recommend buying an electronic hygrometer that measures both temperature and humidity

these are available at most DIY shops and even in electrical goods sect of Mustafa
 

sidloojl

New Member
Jul 8, 2009
509
0
0
Singapore
#6
Why dont you spend more time shooting than worrying about the fluctuation of the RH between 40, 45 or 50. IT MAKES NO DIFFERENCE for the your purposes.
exactly, you think 2% will kill your camera ah?...hahaha. ou bring it out it is exposed to 70% or more lor..it keeps fluctuating one la.open door only go up already..unless it goes too high then you worry;) mine has a lowest RH of 40% when i leave it in there for a day or more..but goes to 50% once i open the door.
 

Octarine

Moderator
Staff member
Jan 3, 2008
12,515
30
48
Pasir Ris
#7
i would have preferred a digitally controlled unit, but the budget only allowed the digi cabi DB-036. It's perfectly fine except for the fact that it's analogue controlled .... and the dial is not the most precise instrument.
You might want to read here for more details: http://www.clubsnap.com/forums/showthread.php?t=481380 - It's like decimal points in maths: get the accuracy that is necessary.
Apart from that, Deadpoet has summed it up.
 

lsisaxon

Senior Member
Nov 29, 2004
11,941
0
0
#8
i would have preferred a digitally controlled unit, but the budget only allowed the digi cabi DB-036. It's perfectly fine except for the fact that it's analogue controlled .... and the dial is not the most precise instrument.

It seems like there are 2 recommended ranges floating around - RH40-45 and RH45-50. Not knowing which is more ideal I was shooting for the middle, ie 45% - but no matter what I do I don't seem to be able to get the 45% reading. It's either 49/48 (possible 47 with the airconditioning turned on) ... or 43/42. I can't find the sweet spot on the dial that hits the 45% mark.

So my question is which is better. Leaving it at 49/48 ... or turning it down to 43/32.
Be patient.. Since you should already know the position that gives you 49/48 and 43/42, then gently tap the dial to get you somewhere in between and patiently wait... adjust only after it has settled for a day. Anyway, RH of 48/49% should be ideal.
 

Fotophilic

Senior Member
Jun 18, 2006
2,388
0
36
big tree town
#9
i would have preferred a digitally controlled unit, but the budget only allowed the digi cabi DB-036. It's perfectly fine except for the fact that it's analogue controlled .... and the dial is not the most precise instrument.

It seems like there are 2 recommended ranges floating around - RH40-45 and RH45-50. Not knowing which is more ideal I was shooting for the middle, ie 45% - but no matter what I do I don't seem to be able to get the 45% reading. It's either 49/48 (possible 47 with the airconditioning turned on) ... or 43/42. I can't find the sweet spot on the dial that hits the 45% mark.

So my question is which is better. Leaving it at 49/48 ... or turning it down to 43/32.
either or, i don't think it matters. your camera won't feel the difference.
how u know ur meter is 100% accurate at all times anyway?
RH about 40-50% should be fine. :)
 

Last edited:

Octarine

Moderator
Staff member
Jan 3, 2008
12,515
30
48
Pasir Ris
#11
Mine went from 50 to 30 since yesterday.
Then check the manual how to set it a bit higher, close the door and wait a couple of hours. 30% is a tad too low. Bear in mind that room aircon will affect the work of the dry cabinet.
 

commonjunks

Senior Member
Jul 23, 2009
2,036
1
0
Jurong
#12
Then check the manual how to set it a bit higher, close the door and wait a couple of hours. 30% is a tad too low. Bear in mind that room aircon will affect the work of the dry cabinet.
**** man reading all the post, do i need to calibrate hygrometer first (i just bought like 2 days ago).
 

sidloojl

New Member
Jul 8, 2009
509
0
0
Singapore
#13
**** man reading all the post, do i need to calibrate hygrometer first (i just bought like 2 days ago).
just turn the knob and wait till you get the desired range, once it is there, don't touch it. calibrate what?...it isn't that difficult la..
 

#14
Dear TS, which digital dry cab are you refereing to? Don't recall any digital ones around. Unless you're refereing to the digital 'hygrometer'. From what I can see is that that the cabs are analog meaning, there's dial to turn to get the required RH. I suggest you adjust once, keep the door close and monitor. By opening and closing the door will give very poor indication of the RH. Let the reading settle trying to attempt to readjust.

I fully support bro deadpoet's suggestion. Spend more time shooting rather worrying about 5% RH
 

Status
Not open for further replies.
Top Bottom