[Hai-users] outdoor temp sensor adjustment

[Brad]

That only applies to the OLD discontinued style temp sensors. New style
can't be adjusted.

-----Original Message-----
From: hai-users-bounces at tssi.com [mailto:hai-users-bounces at tssi.com] On
Behalf Of Robert Surtees
Sent: Wednesday, December 15, 2004 12:09 PM
To: jkv at vossen.org; hai-users at tssi.com
Subject: RE: [Hai-users] outdoor temp sensor adjustment



Subject: [Hai-users] outdoor temp sensor adjustment

I think this was discussed here before, but I can't find it.....




-----Original Message-----
From: Ken Schumm [mailto:kwschumm at qsolv.com]
Sent: Friday, February 14, 2003 9:56 AM
To: Tim Duckworth
Cc: hai-users at celery.tssi.com
Subject: Re: [HAI Users] Temperature sensor location

Previously, you (Tim Duckworth) wrote:
> How did you calibrate the sensor?  Is there a setting where you can 
> apply
a fixed offset from the actual sensor reading or is this is mechanical
calibration?

Here is the calibration information I have gleaned from this mailing list
over the last few years. Scott Dudoussat from HAI supplied this information.

First of all, if you pop the cover on the sensor there is a potentiometer
that can be adjusted with a small screwdriver.
That is how you make calibration changes. There are two ways to calibrate
the sensor, one requiring a frequency meter the other is trial and error.

If you have a frequency meter, you can measure the output of the sensor. To
pick the required frequency at a given temperature use this formula:

> FREQUENCY  =  (4 * TEMPERATURE)  /  30
> 
> Example:
> 
> Using the thermometer, if the ambient temperature is 75 degrees:
> 
> FREQUENCY  =  (4 * 75)  /  30
> FREQUENCY  =  300     /  30
> FREQUENCY  =  10 Hz
> 
> 73o 9.73 Hz - 9.86 Hz
> 74o 9.87 Hz - 9.99 Hz
> 75o 10.00 Hz - 10.12 Hz
> 76o 10.13 Hz - 10.26 Hz
> 77o 10.27 Hz - 10.39 Hz
> 
> The current version of the temperature sensor does not read below 0 
> degrees F.

If you don't have a frequency meter, use this trial-and-error method.

> The temperature is
> updated by the controller every 30 seconds.  After you make a change, 
> wait at least 60-90 seconds for a proper reading by the controller.
> Turn the potentiometer clockwise (in small increments) to "lower" the 
> temperature.  Turn the potentiometer counter-clockwise to "raise" the 
> temperature.

There ya go! Good Luck!




==========
To post messages to this list, send e-mail to: hai-users at tssi.com For list
help, send e-mail to: hai-users-help at tssi.com For posting guidelines, send
e-mail to: hai-users-info at tssi.com To unsubscribe from this list, send
e-mail to:
hai-users-unsubscribe at tssi.com





_______________________________________________
HAI-users mailing list
HAI-users at tssi.com
http://romaine.tssi.com/mailman/listinfo/hai-users