As the water evaporates from the cotton it causes a cooling effect on the thermometer. Then place the tail of the wick in water. To make a wet-bulb thermometer, just add a cotton wick to the end of a thermometer. The greater the evaporation taking place, the lower the temperature reading on the wet-bulb thermometer and the larger the spread will be between the wet- and dry-bulb reading. If the wet and dry bulb read the same temperature, you would have 100 percent humidity. The wet-bulb thermometer measures the evaporative cooling event. Using a wet-bulb thermometer is a good learning experience for determining relative humidity. There will be more condensation on the glass if the room is cold, so be sure the temperature in the incubator remains steady. However, the condensation is also related to the temperature of the room where the incubator is being operated. In the latter stages of incubation (from the 19th day on), condensation on the glass indicates the presence of sufficient moisture. A good test is to add water just warm to the touch. Whenever you add water to an incubator, it should be about the same temperature as the incubator so you do not stress the eggs or the incubator. The pan should be checked regularly while the incubator is in use to be sure that there is always an adequate amount of water. The relative humidity in the incubator can also be varied by changing the size of the water pan or by putting a sponge in the pan to increase the evaporating surface. (This is especially helpful when duck or goose eggs are being hatched.)Īn 8-inch pie tin or petri dish containing water and placed under the tray of eggs should provide adequate moisture. Table 3 (Relative Humidity) will enable you to calculate relative humidity using readings from a wet-bulb thermometer and the incubator thermometer.ĭuring the hatching period, using an atomizer to spray a small amount of water into the ventilating holes may increase the humidity in the incubator. Too little moisture results in excessive evaporation, causing chicks to stick to the shell sometimes and hatch crippled at hatching time. Too much moisture in the incubator prevents normal evaporation and results in a decreased hatch, but excessive moisture is seldom a problem in small incubators. During the last 3 days (the hatching period) the relative humidity should be nearer 65-70 percent. Overall, when you compare the new Little Giant® 9300 Still Air Incubator, 10300 Circulated Air, and 11300 Deluxe Incubator (with egg turner) to our competitors, you will find that this USA-made unit boasts the digital performance, safety features, and accuracy far surpassing that of others in our market.The relative humidity of the air within an incubator for the first 18 days should be able 60 percent. There are no sharp edges, removing the risk of poking the hatching hobbyist or scratching the newly hatched chicks. All three models include a dishwasher-safe plastic mesh screen for easy clean-up and improved sanitation of the unit for subsequent hatches. The fan’s electronics have also been redesigned for user safety, now allowing for a simple plug-and-play design to upgrade your 9300 to a circulated air unit. We want your hatch to be safe and successful for all hobbyists. This makes all three units ideal for a classroom setting to teach future hobbyists the science of poultry incubation. The redesigned plastic heater is much cooler to the touch than traditional metal heating elements (that can reach 265 degrees!). We have also focused on state-of-the-art safety features for both the hobbyist and the chicks. With predictive temperature technology, the unit then holds your set temperature within ONE degree! This is vastly improved over previous designs that can be tricky to dial into the desired temperature. The Little Giant® 9300, 10300, and 11300 series of digital incubators includes a digital control board with one-touch temperature setting. The next generation of incubator technology is here! We are proud and excited to offer you the performance and electronics of high-end, expensive incubators at hobbyist price points. UPDATE: Tips for Getting Started with Your Incubator
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