Why temp not consistant in forced air?????

[RoRoinGA]

Ab, I am with you. If you read my posts, I am in the same boat. I believe I could keep 1 thermometer consistant, but which one do I chose?? I am already into day 8, so what now. Oh and by the way, I did a test run on my bator with one of those therm and it was steady (dont know if it was right, but steady) My concerns have started since I put the 2nd and 3rd therm in there.

 

[Texasboy4ever]

I have an LG with forced air and turner. I put thermometer in the middle of turner. I have an old style turner. It's a digital thermometer with Humidity. Temp stays between 98 and 100. The only problem I had was when the fan wasn't turning fast enough, I oiled it and now working fine. But the room temp has to be consitant no drafts. I keep mine in our computer room.

 

[Penturner]

In effect no thermometer is accurate unless you are going to buy a calibrated laboratory type thermometer. So here is the cheap way to do it. I went to Wal mart when they had jsut gotten a new supply of Aquarium thermometer. The type that just float in the tank or have a suction cup to stick it to the inside of the glass. they had 8 in stock. I pulled them all down and read all of them then picked 4 that all read the same temperature. They only cost $2 each. I then went and got a digital thermometer as well for ease of reading. I then set all of them up in one small undisturbed space and gave then several hours to adjust. the digital luckily read exactly the same as the liquid thermometers. note this still does not mean that because all these thermometers read 99.5. the temp is in fact 99.5 it just means they all read the same at about 76 degrees. you need to check them again at 99.5 since reading a different temperature can effect how accurate they are. In my case one of my liquid thermometers is inaccurate by about 4 degrees at 99.5. all the others still agree. Now you still do not know for a fact that a reading of 99.5 is in fact 99.5 degrees. So how do you know what the thermometer will read at a real 99.5? By hatching eggs and evaluating the hatch for signs of high or low temperature. it is very likely that selecting thermometers in this way will get you very close to accurate ones. But you could also have very accurately inaccurate ones as well. Chances are you will be close enough to not effect your hatch. But if you do have consistent problems that seem to be temperature related, always hold the thermometer in question. you can never know how accurate any given thermometer is without something to compare it to. But you can narrow it down and have some level of assurance that it can be trusted. hope all that makes since.

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[RoRoinGA]

Well I think you were right. The thermometer that was directly under the fan motor was higher than the other. The motor might just be sending out some heat of its own, (lord knows I wired it). So i moved that thermom and right now we are holding steady since 11:00 at 100. I cant complain about that. My humidity is at 34%.