Dry Cab humidity level won't go higher


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HTCahHTC

Senior Member
May 9, 2008
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#1
hey guys!
as stated, it wont go any higher than 40% no matter which direction i turn.
i'm using those with a digital reading facing outwards which you have to turn the knob of the humidity inside at the rear of the dry cab.
problem happened for quite awhile...
anw, will it 'harm' the camera or anything if the humidity level is lower?
 

AxeLa

Senior Member
#2
hey guys!
as stated, it wont go any higher than 40% no matter which direction i turn.
i'm using those with a digital reading facing outwards which you have to turn the knob of the humidity inside at the rear of the dry cab.
problem happened for quite awhile...
anw, will it 'harm' the camera or anything if the humidity level is lower?
45-55 its best...lower will dry the rubbers and grease....:thumbsd:
 

HTCahHTC

Senior Member
May 9, 2008
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#3
45-55 its best...lower will dry the rubbers and grease....:thumbsd:
lol i know. it's stated in the manual. but my humidity level wont go higher than 40
 

RedDotPhoto

Deregistered
Sep 7, 2008
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#4
You have to let some 'moist air' in.

1) open the door for ~3-5mins, wait for RH to rise till ~60%
2) Tune the control, close the door
3) Observe after an hour or two
4) Repeat 1-3 if RH is still too low and re-tune the RH control
 

HTCahHTC

Senior Member
May 9, 2008
896
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#5
You have to let some 'moist air' in.

1) open the door for ~3-5mins, wait for RH to rise till ~60%
2) Tune the control, close the door
3) Observe after an hour or two
4) Repeat 1-3 if RH is still too low and re-tune the RH control
thanks! will try and let you know again (if you don minD)
 

HTCahHTC

Senior Member
May 9, 2008
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#6
it still returns to around 20%-40% :(
 

Octarine

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Staff member
Jan 3, 2008
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Pasir Ris
#7
Do you have the cabinet in an aircon room?
Keep in mind that the cabinet you have works constantly but without active feedback loop. Means: the dehumidifying unit always runs and pushes moist from inside to outside. The knob is only to adjust the level of dehumidifying. The result depends on the residual RH. If the residual RH is already low (due to aircon) the result will be too dry, no matter how low you set the unit. Switch off the unit and watch the RH meter over night. What is the reading after 12h?
 

HTCahHTC

Senior Member
May 9, 2008
896
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#8
Do you have the cabinet in an aircon room?
Keep in mind that the cabinet you have works constantly but without active feedback loop. Means: the dehumidifying unit always runs and pushes moist from inside to outside. The knob is only to adjust the level of dehumidifying. The result depends on the residual RH. If the residual RH is already low (due to aircon) the result will be too dry, no matter how low you set the unit. Switch off the unit and watch the RH meter over night. What is the reading after 12h?
yes, aircon room, but aircon's on only at night. and the level is still the same as without aircon. no matter which direction i turn the knob towards, it still ends up below 40%. i could let it up till 60% previously.
 

kenthsg

New Member
Jul 4, 2007
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#9
Maybe battery running out. Try changing the battery.
 

Octarine

Moderator
Staff member
Jan 3, 2008
12,490
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48
Pasir Ris
#10
yes, aircon room, but aircon's on only at night. and the level is still the same as without aircon. no matter which direction i turn the knob towards, it still ends up below 40%. i could let it up till 60% previously.
Sounds strange. Get a second RH meter to verify the reading. If you can verify the readings it seems the regulation knob is faulty and the electrical unit needs replacement. Just unmount the whole unit (6 screws) and bring it to Digihub, don't forget warranty card! They exchange one-by-one and you can remount the new one. Have done it for a 50l unit, piece of cake.
 

HTCahHTC

Senior Member
May 9, 2008
896
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#13
Sounds strange. Get a second RH meter to verify the reading. If you can verify the readings it seems the regulation knob is faulty and the electrical unit needs replacement. Just unmount the whole unit (6 screws) and bring it to Digihub, don't forget warranty card! They exchange one-by-one and you can remount the new one. Have done it for a 50l unit, piece of cake.
wa... that sounds complicating. haha. anw, i try to replace the battery FRIST, if problem still persist, well, go hospital... :think:
 

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