MARCH HATCH-A-LONG come join in
- Thread starter chickenmeadow
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Cute Baby pics
Congratulations!
day 21 and nothing is happening. I went and got a humidity gauge and it is only reading 45. I have the wells full, a bowl with warm water and sponge in it, what else can I do???
Got up this am to find my turner under the Silver Lakenvelders wasn't turning!
Had planned to grab a cuppa
and an egg and go get a pedicure.
Hm-m-m -- Pedi .....New turner???? Made a trip to TSC and got their last turner
NO CONTEST!!!!
I figure an extra day of rest after spending 4 days with the USPS won't hurt them
Planning to spend the afternoon finishing up the 'travel/car hatcher' for next weekend's trip. It is going to work out well. When I candle and lock down [in the travel hatcher] the eggs in the Suro and Hova-Bator on Sat, it will be time to do the first candle on the Silver Lakenvelders and I can transfer them into the Suro, where they will be totally safe [barring a prolonged power outage] for the rest of their incubation and hatching
Planning to spend the afternoon finishing up the 'travel/car hatcher' for next weekend's trip. It is going to work out well. When I candle and lock down [in the travel hatcher] the eggs in the Suro and Hova-Bator on Sat, it will be time to do the first candle on the Silver Lakenvelders and I can transfer them into the Suro, where they will be totally safe [barring a prolonged power outage] for the rest of their incubation and hatching
Quote:
may I suggest a warm wet washrag in the corner?
may I suggest a warm wet washrag in the corner?
- Mar 13, 2010
- 135
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I have 6 indian runner duck eggs in since march 8th...
very excited...
have chickens... ordered the duck eggs... waiting to candle them in 3-4 days...
using a brinsea mini eco advance... wondering if anyone can tell me if i should only keep one reservoir filled or both...
very excited...
have chickens... ordered the duck eggs... waiting to candle them in 3-4 days...
using a brinsea mini eco advance... wondering if anyone can tell me if i should only keep one reservoir filled or both...
Quote:
Are you sure the hygrometer is calibrated correctly? I sounds like you have too many humidity sources for the 45% reading to be correct.
I just bought it turned it on and stuck it in there. The instructions only told how to set the time. it is a Acurite from Lowes.
I just looked it up and it says it is self calibrating
Are you sure the hygrometer is calibrated correctly? I sounds like you have too many humidity sources for the 45% reading to be correct.
I just bought it turned it on and stuck it in there. The instructions only told how to set the time. it is a Acurite from Lowes.
I just looked it up and it says it is self calibrating
Last edited:
How to Calibrate a Hygrometer
by Lianne McLeod, DVM
for About.com
*******To calibrate a hygrometer you will need:
1/2 cup table salt
approximately 1/4 cup water
coffee cup
hygrometer
large re-sealable freezer bag
1. Place 1/2 cup of salt in the coffee cup, and add the water. Stir for a bit to totally saturate the salt (the salt won't dissolve, it will be more like really wet sand).
2. Place the salt/water mix in a re-sealable plastic bag, along with the hygrometer, and seal the bag. Note: make sure none of the salt/water mix comes in direct contact with the hygrometer.
3. Set this bag aside at room temperature for 8-12 hours, in a location where the temperature is fairly constant.
4. After 8-12 hours, check the reading of the hygrometer. It is best to read it while still in the bag.
The relative humidity in the sealed bag with the salt/water mix should be 75 percent (mine read about 72 percent).
5. For adjustable hygrometers, adjust to read 75 percent. You will have to do this very quickly, or remember how much you need to adjust the setting (e.g. mine read 72 percent rather than 75 percent, so I would need to adjust the dial up 3 percentage points).
If yours is not adjustable (like mine), simply make a note of how "off" your hygrometer reads. If it reads below 75 percent, you will need to add the difference to your actual readings. If your hygrometer read above 75 percent on the calibration, you will need to subtract the difference from your actual reading.
In my example: after sitting in the bag, my hygrometer read 72 percent, when it should have read 75 percent -- a difference of 3 percent. I now add 3 percent to the readings I take on the hygrometer (e.g. in a tank) to get the actual relative humidity.
Remember: always give a hygrometer about 2 hours to stabilize before taking a reading, as changes in the relative humidity may take a while to register accurately on a hygrometer.
CORRECTION:
Burbs (on byc) wrote:
*Kosher salt is better because it is pure NaCl. Table salt has additives such as iodine and anticaking chemicals.
Mine was off by 10 when calibrating with salt. I don't think it is that uncommon with the $20 digitals.
When calculating at different humidity percentages keep in mind that it is not a direct addition. For example, mine read 65% when it should have read 75%. Thats a factor of 115% that needs to be added to the 65% reading. So if I am reading 35% on my meter the actaul is 40.25% (35 X 1.15 correction factor).
From wikipedia:
"The critical relative humidity (CRH) of a salt is defined as the relative humidity of the surrounding atmosphere (at a certain temperature) at which the material begins to absorb moisture from the atmosphere and below which it will not absorb atmospheric moisture.
When the humidity of the atmosphere is equal to (or is greater than) the critical relative humidity of a sample of salt, the sample will take up water until all of the salt is dissolved to yield a saturated solution. All water-soluble salts and mixtures have characteristic critical humidities; it is a unique material property.
I replied:
Burbs, thanks for posting that. That could make a BIG difference in the original post. Mine was 70% rather than 75% so I was just quickly adding 5% as suggested in my post above, i.e., right now my hygrometer is reading 43% or 43+5=48% the old way. However, doing it correctly 75/70= 1.07 , so 43 x 1.07 = 46.01% NOT 48%. That incorrect difference of 2% could make an important difference when incubating eggs and deciding when/whether or not to add water.
Also, when comparing my hygrometer's percentage to another that's known to be 100% correct, I could not see mine at 43% and the correct one at 46% and simply figure 3% difference at every percentage change, e.g., if mine only read 12% humidity, 12 x 1.07 = 12.84% not 15%. Thanks to you, I am going to keep a calculator next to my incubator and hygrometer from now on.
by Lianne McLeod, DVM
for About.com
*******To calibrate a hygrometer you will need:
1/2 cup table salt
approximately 1/4 cup water
coffee cup
hygrometer
large re-sealable freezer bag
1. Place 1/2 cup of salt in the coffee cup, and add the water. Stir for a bit to totally saturate the salt (the salt won't dissolve, it will be more like really wet sand).
2. Place the salt/water mix in a re-sealable plastic bag, along with the hygrometer, and seal the bag. Note: make sure none of the salt/water mix comes in direct contact with the hygrometer.
3. Set this bag aside at room temperature for 8-12 hours, in a location where the temperature is fairly constant.
4. After 8-12 hours, check the reading of the hygrometer. It is best to read it while still in the bag.
The relative humidity in the sealed bag with the salt/water mix should be 75 percent (mine read about 72 percent).
5. For adjustable hygrometers, adjust to read 75 percent. You will have to do this very quickly, or remember how much you need to adjust the setting (e.g. mine read 72 percent rather than 75 percent, so I would need to adjust the dial up 3 percentage points).
If yours is not adjustable (like mine), simply make a note of how "off" your hygrometer reads. If it reads below 75 percent, you will need to add the difference to your actual readings. If your hygrometer read above 75 percent on the calibration, you will need to subtract the difference from your actual reading.
In my example: after sitting in the bag, my hygrometer read 72 percent, when it should have read 75 percent -- a difference of 3 percent. I now add 3 percent to the readings I take on the hygrometer (e.g. in a tank) to get the actual relative humidity.
Remember: always give a hygrometer about 2 hours to stabilize before taking a reading, as changes in the relative humidity may take a while to register accurately on a hygrometer.
CORRECTION:
Burbs (on byc) wrote:
*Kosher salt is better because it is pure NaCl. Table salt has additives such as iodine and anticaking chemicals.
Mine was off by 10 when calibrating with salt. I don't think it is that uncommon with the $20 digitals.
When calculating at different humidity percentages keep in mind that it is not a direct addition. For example, mine read 65% when it should have read 75%. Thats a factor of 115% that needs to be added to the 65% reading. So if I am reading 35% on my meter the actaul is 40.25% (35 X 1.15 correction factor).
From wikipedia:
"The critical relative humidity (CRH) of a salt is defined as the relative humidity of the surrounding atmosphere (at a certain temperature) at which the material begins to absorb moisture from the atmosphere and below which it will not absorb atmospheric moisture.
When the humidity of the atmosphere is equal to (or is greater than) the critical relative humidity of a sample of salt, the sample will take up water until all of the salt is dissolved to yield a saturated solution. All water-soluble salts and mixtures have characteristic critical humidities; it is a unique material property.
I replied:
Burbs, thanks for posting that. That could make a BIG difference in the original post. Mine was 70% rather than 75% so I was just quickly adding 5% as suggested in my post above, i.e., right now my hygrometer is reading 43% or 43+5=48% the old way. However, doing it correctly 75/70= 1.07 , so 43 x 1.07 = 46.01% NOT 48%. That incorrect difference of 2% could make an important difference when incubating eggs and deciding when/whether or not to add water.
Also, when comparing my hygrometer's percentage to another that's known to be 100% correct, I could not see mine at 43% and the correct one at 46% and simply figure 3% difference at every percentage change, e.g., if mine only read 12% humidity, 12 x 1.07 = 12.84% not 15%. Thanks to you, I am going to keep a calculator next to my incubator and hygrometer from now on.
even if it was off by 5% or so, 45 to 70 is a huge difference. I read 70-75 is right for hatch time in a still air. Should I open the incubator and mist the eggs with a spray bottle??? an older man at work told me in the old days they would dip the eggs in water when they heard peeps to add moisture. I would be afraid to try that but maybe some mist?
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