A/C Differential Testers

Originally Posted By: jschwartz1
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I am looking for some suggestions on a purchase for a differential testers.


Thanks

Jay


Originally Posted By: jpope
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Do you mean a thermometer?


http://www.professionalequipment.com/xq/ASP/ProductID.717/id.448/subid.453/qx/default.htm


--
Jeff Pope
JPI Home Inspection Service
"At JPI, we'll help you look better"
(661) 212-0738

Originally Posted By: jschwartz1
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Jeff,


I am looking for a tester to measure splits.


Originally Posted By: apolillo
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Jay,


Buy 2. Place one at the return, one at the supply, do the math (ABS) Difference. Voila Temp Split


Anatol


Originally Posted By: jpope
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I’m not following you.


I measure temperature differentials at the A/C by checking the temperature at the intake and register.

Is this not what you are referring to?


--
Jeff Pope
JPI Home Inspection Service
"At JPI, we'll help you look better"
(661) 212-0738

Originally Posted By: jschwartz1
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Jeff,


Your link was very helpful.

Thanks,
Jay


Originally Posted By: jpeck
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Jay,


I have a dual reading digital thermometer I bought for reading a/c temp splits.

After finding its usefulness somewhat lacking, and after sitting in my tool bag basically unused for about 6 years or more, I found a use for it.

I use it to measure the freezer and refrigerator temperatures in our camper refrigerator.

I use two thermometers. I keep them 'calibrated' and within 1 degree of each other.


--
Jerry Peck
South Florida

Originally Posted By: jschwartz1
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Thanks Jerry.


Make sure you keep them camping beverages cold!!


Originally Posted By: kmcmahon
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jpope wrote:
Do you mean a thermometer?

http://www.professionalequipment.com/xq/ASP/ProductID.717/id.448/subid.453/qx/default.htm


I bought the same one on ebay new for $55. ![icon_wink.gif](upload://ssT9V5t45yjlgXqiFRXL04eXtqw.gif)


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Wisconsin Home Inspection, ABC Home Inspection LLC

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Originally Posted By: jpeck
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Infrared thermometers are NOT GOOD for measuring TDs.


When measuring TDs, you want to measure the temperature of the air.

Infrared thermometers measure the temperature of the metal grille, not the the temperature of the air. Occasionally, there is little difference, HOWEVER, depending on the cone ratio of the infrared thermometer, your reading could be way off.

You really should be measuring the temperature of the air (IF you take TDs, but that is another discussion).


--
Jerry Peck
South Florida

Originally Posted By: bpartlow
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Jerry is absolutely correct. A temp probe of some sort works much better for this.


Originally Posted By: Brian A. Goodman
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I also agree with Jerry. I have a pair of inexpensive digital thermometers with magnets on the back, very convienent. I like digitals, when you report temperatures measured like 126.3 no one seems to question the accuracy. icon_smile.gif