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Bionare digital thermometer hygrometer accuracy ?
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nosp...@nospam.com
Oct 22, 2002, 9:23:24 PM10/22/02
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I saw this device recently at an ACR hardware systems which shows
temperature and % relative humidity . How accurate (+- how many %) is
this device in measuring relative humidity ( RH ) ?
temperature and % relative humidity . How accurate (+- how many %) is
this device in measuring relative humidity ( RH ) ?
nosp...@nospam.com
Oct 23, 2002, 1:19:44 PM10/23/02
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oops - spelled Bionaire
Marten Peterson
Oct 23, 2002, 6:13:23 PM10/23/02
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I'd see if I could find their website if they have one. Then I'd look there
to get the specifications on that thermometer/hygrometer.
to get the specifications on that thermometer/hygrometer.
Marten
<nosp...@nospam.com> wrote in message
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> oops - spelled Bionaire
>
>
>
Bryan
Oct 27, 2002, 4:25:06 AM10/27/02
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I have one of those and it seems to differ about 5 % from my dehumidifier,
not sure which one is accurate. I am wondering if there might be a way of
testing one, by placing the unit in a steam filled shower, what should the
humidity register.
not sure which one is accurate. I am wondering if there might be a way of
testing one, by placing the unit in a steam filled shower, what should the
humidity register.
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nosp...@nospam.com
Oct 27, 2002, 6:04:47 AM10/27/02
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I looked around the web and found a reference to a " salt test " .
You place a small amount (1/2 teaspoon) of table salt in a small
container (like a bottle cap ) and put a few drops of water on it (not
too much just a slight paste ) . Place the bottle cap with the wet
salt and the hygrometer unit in a sealed ziplock bag for a few hours
. The relative humidity reading ( RH %) should be 75 % . Mine read
74% so I guess it is not that far off at least in that range. Just
out of interest I found a couple of small silica gel bags which came
in camera box which I had saved for storing . I heated them in foil
over a light buld for a few hours to drive out the absort moisure
then put them in ziplock bag with the Bionaire RH-400 meter . The RH
drops from 72% ambient (I live in Atlanta ) to 32% in the bag . I am
not sure what the silca gel experiment tells me ( about accuracy ? )
other than the device works
You place a small amount (1/2 teaspoon) of table salt in a small
container (like a bottle cap ) and put a few drops of water on it (not
too much just a slight paste ) . Place the bottle cap with the wet
salt and the hygrometer unit in a sealed ziplock bag for a few hours
. The relative humidity reading ( RH %) should be 75 % . Mine read
74% so I guess it is not that far off at least in that range. Just
out of interest I found a couple of small silica gel bags which came
in camera box which I had saved for storing . I heated them in foil
over a light buld for a few hours to drive out the absort moisure
then put them in ziplock bag with the Bionaire RH-400 meter . The RH
drops from 72% ambient (I live in Atlanta ) to 32% in the bag . I am
not sure what the silca gel experiment tells me ( about accuracy ? )
other than the device works
Bryan
Nov 3, 2002, 2:38:24 AM11/3/02
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Hey, great I will give the salt test a try.
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