Humidity Detecting Switch

On 6/10/2010 8:15 AM, vjp2.at@at.BioStrategist.dot.dot.com wrote:

I doubt you'll ever find one. To detect humidity, air must circulate
over the sensor. I don't see how to do that in a jamb box. A quick
search* turns up
http://store.antx.com/browseproducts/Adjustable-humidity-switch.html

Jerry
___________________________
* http://www.google.com/search?q=adjustable+humidity+switch
--
Engineering is the art of making what you want from things you can get.
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vjp2.at@at.BioStrategist.dot.dot.com wrote:

On Thu, 10 Jun 2010 12:15:02 +0000 (UTC),
vjp2.at@at.BioStrategist.dot.dot.com wrote:


http://www.google.com/products?hl=en&q=humidistat&um=1&ie=UTF-8&ei=jdoQTLiqOYSKlweOy7ngBw&sa=X&oi=product_result_group&ct=title&resnum=1&ved  DsQrQQwAA

http://www.google.com/search?hl=en&q=humidistat


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vjp2.at@at.BioStrategist.dot.dot.com wrote:

Googling "wall mount humidistat" will return hits like the following:

Broan DH100W
Honeywell H46C
Honeywell  H8908B
Honeywell H600A
Ranco J10-821

Jon

On Thu, 10 Jun 2010 12:15:02 +0000 (UTC),
vjp2.at@at.BioStrategist.dot.dot.com wrote:


There are many humdiity detectors available today. None as a switch,
as they require a good air flow (and a switch won't have any air-flow)
but you can mount them in unobtrusive places (such as near the fan) if
you wanted, and use the wall switch as a master on/off.

On Jun 10, 7:15 am, vjp2...@at.BioStrategist.dot.dot.com wrote:

Mold in a shower is normal and easily killed by laundry bleach, mild
elsewhere is caused by water, either leaks or condensation in winter.
A humidity fan wont fix what you think it will and will trigger on a
rainy day bringing in more humidity.

On Thu, 10 Jun 2010 06:01:20 -0700 (PDT), ransley


    6 of one, 6 of the other, then, on that day.

    And the air intake will at lest be distributed instead of all
in one area, so it will disperse its humidity faster.


--
Click here every day to feed an animal that needs you today !!!
www.theanimalrescuesite.com/

Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
HVAC/R program for Palm PDA's
Free demo online at www.pmilligan.net/palm/
Free 'People finder' program now at www.pmilligan.net/finder.htm

Whenever a Liberal utters the term "Common Sense approach"....grab your
wallet, your ass, and your guns because the sombitch is about to do
something damned nasty to all three of them.

Pray for Obama : Psalms 109:8

   Understood.  Most of my mold problems are nowhere near the shower.
(Pointing, siding shingles and duct perspiration might be implicated.)  When
my mom was alive, we never had mold in the house.  After my dad also died, it
blossomed. I stopped using heat and cool because I essentially "borrowed" it
form my godparents upstairs.  I had by heat at 57F and cool at 87F and it
almost never turned on.  I also kept the rooms locked up because I was rarely
home.

   In fact, I have learned over the past six months, when I sudeenly found
myself spending more time working from home, to push the temperature duing
rain so as to trigger more ventillation.

   I live where the East and FLushing rivers empty into Long Island sound,
and I am at 45ft elevation on a hill that peaks at 150, but zero elevation is
on the other side of my block, probably swamp landfill. Last year, was
especially humid, our local beaches were closed, dark green from storm drain
overflow.

*+-Mold in a shower is normal and easily killed by laundry bleach, mild
*+-elsewhere is caused by water, either leaks or condensation in winter.
*+-A humidity fan wont fix what you think it will and will trigger on a
*+-rainy day bringing in more humidity.



                    - = -
 Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist
   http://www.panix.com/~vjp2/vasos.htm   http://www.facebook.com/vasjpan2
  ---{Nothing herein constitutes advice.  Everything fully disclaimed.}---
   [Homeland Security means private firearms not lazy obstructive guards]
 [Urb sprawl confounds terror] [Phooey on GUI: Windows for subprime Bimbos]

On Thu, 10 Jun 2010 21:10:21 +0000 (UTC),
vjp2.at@at.BioStrategist.dot.dot.com wrote:


    Try taking them outside and leaving them there.



--
Click here every day to feed an animal that needs you today !!!
www.theanimalrescuesite.com/

Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
HVAC/R program for Palm PDA's
Free demo online at www.pmilligan.net/palm/
Free 'People finder' program now at www.pmilligan.net/finder.htm

Whenever a Liberal utters the term "Common Sense approach"....grab your
wallet, your ass, and your guns because the sombitch is about to do
something damned nasty to all three of them.

Pray for Obama : Psalms 109:8

Google on Humidistat.

--
*Change is inevitable, except from a vending machine*

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

*+-Google on Humidistat.

Thanks!


                    - = -
 Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist
   http://www.panix.com/~vjp2/vasos.htm   http://www.facebook.com/vasjpan2
  ---{Nothing herein constitutes advice.  Everything fully disclaimed.}---
   [Homeland Security means private firearms not lazy obstructive guards]
 [Urb sprawl confounds terror] [Phooey on GUI: Windows for subprime Bimbos]

In my opinion you are all wet, at temperature you have outline Humidistat
would be useless unless you have Dehumidifier run at all times,
and at 57 Deg. F not likely that you will get below 50% rh
so all you doing is wasting your time but lots luck.

vjp2.at@at.BioStrategist.dot.dot.com wrote:

I have been using one for 3 months and I like it. I also had trouble finding it.
Think DEW.

http://www.dewstop.com/dewstop_switches.html

greg

way cool!



                    - = -
 Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus, BioStrategist
   http://www.panix.com/~vjp2/vasos.htm   http://www.facebook.com/vasjpan2
  ---{Nothing herein constitutes advice.  Everything fully disclaimed.}---
   [Homeland Security means private firearms not lazy obstructive guards]
 [Urb sprawl confounds terror] [Phooey on GUI: Windows for subprime Bimbos]

On Jun 10, 8:15 am, vjp2...@at.BioStrategist.dot.dot.com wrote:

Order this one:

http://www.ontimemall.com/nortec-1151-0142-modulating-duct-mount-humidistat=
.html

It's on sale for $930 but you won't have to spend $250 on a new fan.

On Jun 10, 7:15 am, vjp2...@at.BioStrategist.dot.dot.com wrote:

Do you ever just run your furnace fan for air circulation, without
heating or cooling.  ALso, do you do a lot of cooking to raise the
humidity that high?

vjp2.at@at.BioStrategist.dot.dot.com wrote:

Try the Granger Company. Dump the home repair NG when posting here if
you want a civil reply.

vjp2.at@at.BioStrategist.dot.dot.com wrote:

I bought 2 army surplus one years ago, high quality stuff!  I used it to
totally rebuild a donut proofing box because none of the original parts
were available.  (the donut proofing box circulates warm humid air
around the raw donuts so they rise without drying out).  A fan, a
stainless steel container like in a salad bar with a generic water
heating element installed in it, the humidistat, and a larger container
of water to siphon water in the small "boiler".  Sorry I can't recall
where I bought them.

To *measure* humidity, the easiest I've found are the HIH-4000 series
from Honeywell. Vout is very nearly linear against percent relative
humidity (a second-order fit improves it a little at the cost of some
computations). Feed it 5 VDC, read with an ADC, simple.

For a setpoint, though, the GE HS12 or HS15 are cheaper. They must be
driven by AC (no DC bias allowed) and the impedance range is over 4
decades, so it is not just a simple ADC hookup. But just to get a trip
point reading would be fairly straightforward.

--
Rich Webb     Norfolk, VA