Incubators Anonymous

[ozexpat]

Hi when books and things are talking about humidity they keep refuring to wet bulb wich is a higher humidity what does wet bulb mean am I been thick lol

in the signature section of my response is a great plain english guide to hatching.

its called hatching 101

it will explain humidity

 

[AmericanMom]

day 6..... can clearly see veining in 5/6 of the goose eggs, decided to check one of the turkey eggs and can see the start of veins in that one.... didn't want to candle all of them yet, will wait til day 10.... added 3 speckled Sussex eggs last night.... temps holding at 100.3-101.8 and humidity is between 50-56

 

[misbhaven]

day 6..... can clearly see veining in 5/6 of the goose eggs, decided to check one of the turkey eggs and can see the start of veins in that one.... didn't want to candle all of them yet, will wait til day 10.... added 3 what speckled Sussex eggs last night.... temps holding at 100.3-101.8 and humidity is between 50-56

what kind of turkey eggs? I have beltville maybe beltsville mix going on day 8 ... I had them shipped 16 were sent 10 still going. 6 were broke or cracked in the mail..fingers crossed for the rest

 

[AmericanMom]

what kind of turkey eggs? I have beltville maybe beltsville mix going on day 8 ... I had them shipped 16 were sent 10 still going. 6 were broke or cracked in the mail..fingers crossed for the rest

I was able to get some Bourbon reds locally... 17 of them... I got the fingers crossed thing going too..

 

[Runawaylobster]

Hi when books and things are talking about humidity they keep refuring to wet bulb wich is a higher humidity what does wet bulb mean am I been thick lol

if you don't use a hygrometer there is another way to measure relative humidity it is called wet bulb depression.

to do this method two thermometers are used side by side. One of them has a wick attached to the bulb and the wick is wet. On the other one the bulb is dry and has no
wick. If you look at the reading on them you will see that the one which has the wick on it is reading a little bit lower than the dry one with no wick.

the reason for this is that the water in the wick is continuously evaporating and it draws heat energy in order to evaporate so consequently the measurement is a little lower.
The amount of evaporation is relative to the actual temperature in the incubator and the actual amount of water vapor present in the surrounding air.

You can use a published table (i bet there is one on wikipedia) to look up the relative humidity based on the readings of these two thermometers. I really like this method as long as your thermometers are accurate because there are no messy electronics to deal with that could go wrong. ON the downside you need to make sure that the wick stays wet or it will not work and you
need to mount the two thermometers carefully on a board. here is an illustration of what i mean

http://www.regentsearth.com/Illustrated ESRT/Page 12 (DP & RH)/ESRT page 12 index.htm

 

[casba]

Hi thanks this was very informative as my humidity is running at about 51% with no water in it I have decided to run it dry and mist my eggs twice and twice aday the humidity goes up to about 80% and then comes down over about 30 ish mins back to 51% the temp is stable at 37.6 c will be candling them on tuesday evening as they will have been in for 7 days if 6 or more are good I will be hatching if not start all over again so storing eggs in case I haven't incubated for so long I forgot so mutch so fingers crossed for Tuesday lol

 

[Sclark73]

Day 21 and I'm now up to 6 pips; 1 EE, 1 SS, 4 BLRW. Looks like one more is getting close. One of the BLRW quit and one I dropped and broke the shell yesterday looks like I may of killed it, I left it in as I didn't puncture the membrane. It was a quick candle so It could still be alive just wasn't moving at the time I was looking. Getting the temps up in the brooder for them and anxiously waiting their arrival.

 

[Bhmathews]

I have a question about temperature in the HovaBator 1588 and figured you all were the best to ask. I have 41 eggs set in a new HB1588. I ran it for 5 days prior to setting, and the bator temp/humidity gauge is a steady 99.5, varying by .1-.2 of a degree. I also have a analog thermometer, the type with red "mercury" in it, which reads right about 100. I checked that one in ice water and it was within 1 degree. I also have a Caliber IV hygrometer, which reads 99.4. Lastly, I have a Spot Check from Brinsea, which I'm worried about being faulty, but Brinsea has a new one coming in the mail.

Here's my worry: the Spot Check seems to be fairly accurate in certain places in the bator. This is going to sound really kooky, because I've already admitted the Spot Check might be faulty, but I'm getting a wide range of readings around the bator. I'm getting consistent readings between 100.8 and 98.4 depending where I move the Spot Check. The coolest place seems to be directly under the fan/heating element.

Has anyone had experience checking different places for temp in a fan bator? Is this normal? Should I be concerned about hot/cold spots? Or am I just worrying about my babies more than I need to?

 

[Runawaylobster]

I have a question about temperature in the HovaBator 1588 and figured you all were the best to ask. I have 41 eggs set in a new HB1588. I ran it for 5 days prior to setting, and the bator temp/humidity gauge is a steady 99.5, varying by .1-.2 of a degree. I also have a analog thermometer, the type with red "mercury" in it, which reads right about 100. I checked that one in ice water and it was within 1 degree. I also have a Caliber IV hygrometer, which reads 99.4. Lastly, I have a Spot Check from Brinsea, which I'm worried about being faulty, but Brinsea has a new one coming in the mail.

Here's my worry: the Spot Check seems to be fairly accurate in certain places in the bator. This is going to sound really kooky, because I've already admitted the Spot Check might be faulty, but I'm getting a wide range of readings around the bator. I'm getting consistent readings between 100.8 and 98.4 depending where I move the Spot Check. The coolest place seems to be directly under the fan/heating element.

Has anyone had experience checking different places for temp in a fan bator? Is this normal? Should I be concerned about hot/cold spots? Or am I just worrying about my babies more than I need to?

absolutely... the heat will not be distributed evenly throughout the incubator. Having one with a fan helps this but it is still present to some degree. If you put your sensor directly under the fan then it will be lower because it is closest to the point where the cooler air is being drawn in and that is what you end up measuring. Likewise if you happen to place it in a "dead zone" ie: one where the circulation is poorest then it will read higher. This is why the manufacturers temperature is the one to go with, because hopefully they have done their proper research and know the best spot to place it.

 

[Bhmathews]

absolutely...  the heat will not be distributed evenly throughout the incubator.   Having one with a fan helps this but it is still present to some degree.   If you put your sensor directly under the fan then it will be lower because it is closest to the point where the cooler air is being drawn in and that is what you end up measuring.  Likewise if you happen to place it in a "dead zone"  ie: one where the circulation is poorest then it will read higher.    This is why the manufacturers temperature is the one to go with, because hopefully they have done their proper research and know the best spot to place it. 

Ahhhhh, thank you! Then I should just chill, sit on my hands and trust the process.