[Hai-users] Temp sensors accuracy again.

[Brad]

Ken, not sure what you mean by expensive parts, but I sure don't consider
what the temp/humid sensor HAI sells as cheap.

It's sad, when Radio Shack can sell $20 temp/humid displays that all hit the
correct temps and humid % almost dead on.

 

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From: hai-users-bounces at tssi.com [mailto:hai-users-bounces at tssi.com] On
Behalf Of Ken Schumm
Sent: Friday, January 13, 2006 2:24 PM
To: hai-users at tssi.com
Subject: Re: [Hai-users] Temp sensors accuracy again.

 

I used to work for a company that manufactured a proprietary commercial
building control system. We tried for years to come up with an inexpensive
and reliable way to accurately measure temperature to +/- 0.1 degree that
didn't require field calibration. The only way we found to solve that
problem was to use expensive components (sensors, precision resistors, etc)
that significantly raised the price of the systems. Marketing balked at the
price and it never did happen.

 

Not a solution to your problem but if HAI can't solve the problem maybe they
need to come up with an easy and supported way to field calibrate the parts.

 

----- Original Message ----- 

From: Brad <mailto:looney2ns at sigecom.net>  

To: hai-users at tssi.com 

Sent: Friday, January 13, 2006 10:19 AM

Subject: [Hai-users] Temp sensors accuracy again.

 

 Just installed 3 HAI temp/humidity sensors. Also installed 3 HAI OmniStats
with remote temp sensors. The Thermostat remote sensors and the
Temp/Humidity sensors are mounted on inside walls within 6 inches of each
other, each set in a different room. Temp/Humidity sensors show temps being
3-5 degrees higher than the thermostats show.

Apparently HAI STILL has not resolved the issue of the Temp/Humid sensor's
being inaccurate.

The Humidity is reading low on them as well. Very frustrating.

Anyone else seeing this?


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