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Author Topic: Again... bad/low humidity readings on THGN123N unit  (Read 2885 times)
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SoMDWx
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« on: January 28, 2010, 06:37:59 PM »

Well,
   A few weeks ago, my OS temp/humidity unit starting reporting low humidities so I ordered a
 THGN123N Ultra Cold Temperature and Humidity Sensor. Not even a week out of the box and it's reporting low humidities compared to stations close by (airports and pws). Has anyone else seen this with their units and recommend a replacement? Please no Davis remarks here, I can't afford one yet...  Sad

Jim
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« Reply #1 on: January 28, 2010, 06:47:48 PM »

   I feel like I have gotten into Mr. Peabody's and Shermans Wayback machine and gone back in time.  I had the same problems with my OS sensors.  It is a tedious pain in the rear to say the least! Brick wall Brick wall d'oh!  Good Luck!
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« Reply #2 on: January 28, 2010, 06:52:33 PM »

Well,
   A few weeks ago, my OS temp/humidity unit starting reporting low humidities so I ordered a
 THGN123N Ultra Cold Temperature and Humidity Sensor. Not even a week out of the box and it's reporting low humidities compared to stations close by (airports and pws). Has anyone else seen this with their units and recommend a replacement? Please no Davis remarks here, I can't afford one yet...  Sad

Jim


I donno.  I have a thgr122n and it does just fine (much better than the thgr968).  I think the 123 is the cold weather version of the 122?  Can you return it for an exchange?  How low is it reading?  Is it all day/night or just in the day or just in the night?
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Greg Whitehead
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SoMDWx
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« Reply #3 on: January 28, 2010, 08:03:01 PM »

better at night. It 's about 12% vs. 35% for those around me...trying to get a return going...
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Jim Wyman
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« Reply #4 on: January 29, 2010, 12:08:29 PM »

Try the THGR268, its been the best replacement for me for accuracy and range, little better than the 122NX.
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SoMDWx
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« Reply #5 on: January 29, 2010, 12:13:55 PM »

Thanks,

 Just got done emailing Ed@ambient and and he said send the bad unit back. I had a 268 several years ago and yes, it was the best. I am going to get that if possible...

Jim
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« Reply #6 on: January 30, 2010, 08:07:35 AM »

Jim
I tested my 123n, but never put in in rotation. Still have a "new" shack one outside right now on my OS.  Was going to rotate the 123 in if my DP started failing (non -10) related on cwop.  I guess I will have to eyeball every once in a while since my vp2 is doing the cwop data now.

The problem with the 123 is that there is no lcd display... so you cant put it on a table with 2 or 3 268's to see how they match up.

Andrew
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« Reply #7 on: February 01, 2010, 11:36:59 AM »

UPDATE:

Just got my RMA return # from Ambient. At the same time I just ordered the 268 unit..

Funny thing is, this morning my dysfunctional 123N froze at 30.6 degs for about 2 hrs. It JUST kicked back in at 36.4 degs. Now it seems the temperature side is going south also... Don't know if there is something else (RF) causing my problems....

Jim
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« Reply #8 on: February 01, 2010, 11:45:32 AM »

UPDATE:

Just got my RMA return # from Ambient. At the same time I just ordered the 268 unit..

Funny thing is, this morning my dysfunctional 123N froze at 30.6 degs for about 2 hrs. It JUST kicked back in at 36.4 degs. Now it seems the temperature side is going south also... Don't know if there is something else (RF) causing my problems....

Jim

Sunspots Smile
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« Reply #9 on: February 01, 2010, 11:49:59 AM »

Sunspots Smile

Here's a picture of Sunspot 1043
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