Results 1 to 14 of 14

Thread: Dry Cab humidity level won't go higher

  1. #1

    Default Dry Cab humidity level won't go higher

    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?

  2. #2
    Senior Member AxeLa's Avatar
    Join Date
    Aug 2006
    Location
    Singapore, Singapore, Singapor
    Posts
    3,698

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by HTCahHTC View Post
    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....
    D800|24~120mm VR|AF VR 80~400mm ED |SB900|50mm F1.8|CD 2X2|FL-360|FastPack 350/Sony RX100M3

  3. #3

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by AxeLa View Post
    45-55 its best...lower will dry the rubbers and grease....
    lol i know. it's stated in the manual. but my humidity level wont go higher than 40

  4. #4

    Default Re: Dry Cab humidity level won't go higher

    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

  5. #5

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by *********** View Post
    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)

  6. #6

    Default Re: Dry Cab humidity level won't go higher

    it still returns to around 20%-40%

  7. #7
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,392

    Default Re: Dry Cab humidity level won't go higher

    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?

  8. #8

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by Octarine View Post
    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.

  9. #9

    Default Re: Dry Cab humidity level won't go higher

    Maybe battery running out. Try changing the battery.

  10. #10
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,392

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by HTCahHTC View Post
    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.

  11. #11
    Senior Member
    Join Date
    Jul 2006
    Location
    Clementi
    Posts
    10,596

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by kenthsg View Post
    Maybe battery running out. Try changing the battery.
    What battery? A dry cabinet runs on AC power supply.

  12. #12
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,392

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by calebk View Post
    What battery? A dry cabinet runs on AC power supply.
    The AD series has a small battery-powered RH meter. It's not connected to main power.

  13. #13

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by Octarine View Post
    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...

  14. #14
    Senior Member
    Join Date
    Jul 2006
    Location
    Clementi
    Posts
    10,596

    Default Re: Dry Cab humidity level won't go higher

    Quote Originally Posted by Octarine View Post
    The AD series has a small battery-powered RH meter. It's not connected to main power.
    Oh I thought he was referring to the drying unit itself.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •