Thermostat incubator

Thermostat incubator with their hands

A simple electronic device to heat the eggs in an incubator - a thermostat. To produce a mechanical device is difficult, but people familiar with electronics, can do it. The microcontroller helps in the effective reproduction of the birds, working as an amplifier for supplying heat energy.

Why do I need the thermostat for incubator

Farmers use a digital thermostat for incubator. The device is able to create a device temperature necessary for the development of embryos. Modern incubators necessarily equipped with such devices. However, if such device is not present, you need to buy this item or construct its own. Advantages of the technology:

  1. the thermostat will maintain the right temperature at all times;
  2. you can set a specific mode for each type of poultry;
  3. as soon as the appliance overheats space, it is turned off;
  4. feature helps conserve power.

Is it possible to make a thermostat with their hands

Most incubators on the market, have to complete the element. Compensate for the lack of such a controller can independently. Make the device easy, it requires certain skills. 2 variants known how to create a digital temperature controller:

  • Electrical Engineering - a complex process which involves the use of electrical and other devices. Construct a regulator of this embodiment can only people with knowledge in the field of electro.
  • Thermostatic method requires the use of parts, is earlier in the domestic electric appliance. Find parts can be in devices of the Chinese, Russian and European production, which are based on temperature control (iron, kettle, curling).

Electrical temperature sensors for on-off

In order to make the thermostat incubator for their own hands, you need to find or buy the necessary radio components and solder them to the diagram. To work needed spare part, which is responsible for providing a constant voltage. In your case, take the zener diode. You can use any type. In addition, you can purchase the following parts:

  • transistors (315 and CT MP 42);
  • thyristor KU 201-202 (note that there was a letter H in designation);
  • KD diodes 202, output power of 600 W - 4 pcs. (They must appear on the letters N or HC);
  • a variable resistor (30-50 ohms), it is intended to regulate mode;
  • thermostat.

A transistor must be placed in a tube made of glass, put a design on the egg. Get a kind of thermometer to the incubator. He will control the increase or decrease in temperature. of the apparatus it is based on the principle that when the controller is turned on there is a disconnection contacts. The incubator is heated by the lamps. If the network device is turned off, the battery begins to run.

thermostat incubator for Scheme

Electrical thermostat incubator for their own hands, without the scheme is difficult to make. Ideal foundation can be build up of certain industrial regulator models:

The design of these devices suitable factory to create a copy at home. thermostats scheme can be found in the appendix to these operating instructions. If such a document you do not have drawings on-off device there are in collections or on specialized forums, where people who have land, share their experiences.

Assembling the thermostat for incubator with his hands on the basis of the thermostat is carried out using the following details:

  1. Locate the thermostat in any household appliance which is equipped with them, and break it. To stop the operation of the equipment is wired and clean all parts.
  2. Inside the device disbanded pour ether. Then wipe the case and make a sealable. Due to properties of ether, the device will be sensitive to temperature changes: the cooling - to contract, when heated - to expand.
  3. Plate to attach the thermostat cogs. If everything is properly assembled, the regulator will work.

Video: homemade thermostat for incubator

Valery, 36 years old: For a bird to use the machine for hatching "Cinderella." It worked well, but recently broke down the thermostat. According to the scheme shown in the instructions, I made a new self from the available parts. Master device is difficult without training does not carry out this process. I was able to collect the right, turned self-made analogue controller.

Nikolai, 48 years old: Over 10 years engaged in the cultivation of a bird on the farm. To offspring appeared quickly apply incubator. The device did himself, by analogy with the industry. The thermostat had to tinkering with his own hands. I formed it from the oven, taken from a broken iron. The regulator has turned workers, significantly facilitated my work.

Anton, 45 years old: Recently there was a need for a temperature switch. Economy has grown, I could not watch carefully for heating the inside of the unit. A neighbor suggested that it is possible to install the thermostat and told their own production, how to make it from the oven. Today my incubator raises and lowers the temperature automatically.

Choice of thermostat for home incubator

A successful incubation of eggs of poultry is impossible without a stable holding temperature. Thermostat incubator should provide accuracy at ± 0,1˚S, with the possibility of changes in the range of from 35 to 39˚S. This requirement corresponds to the majority of marketed digital and analog devices. Enough current thermostat can be made at home, with the proviso elementary knowledge of electronics and ability to hold in the hands of the soldering iron.

In the first municipal and industrial incubators of the last century the temperature was controlled by means of bimetallic relay. To relieve and exclude overheating heaters contacts influences include not directly but through the powerful power relays. This combination can be found in cheaper models to this day. The simplicity of the scheme is the key to reliable operation, and to do this the thermostat for incubator own hands could any high school student.

All the positive things nullified by low resolution and adjustment complexity. The temperature during incubation should be reduced according to the schedule in increments 0,5˚S and do it exactly the adjusting screw on the relay located inside the incubator is very problematic. As a rule, the temperature remains constant throughout the "incubation", which led to a reduction in hatchability. Design with knob and graduated scale have been more convenient, but the retention accuracy is reduced by ± 1-2˚S.

Several difficult to find an analog temperature controller for incubator. Generally, this term is meant the type of control in which the voltage level taken from the sensor is compared directly with a reference level. The load is switched-off in a pulse mode depending on the difference in the voltage levels. Precise control of even simple circuits is in the range of 0.3-0.5? C, and the use of precision operational amplifiers increases to 0,1-0,05˚S.

For a rough setting of the desired mode to the device housing has jackals. reading stability is only slightly dependent on the room temperature, and power-line surges. To eliminate the effect of interference on the probe connection is shielded cable minimum required length. This category can be attributed, and rare models with analog control load. A heating element in them on all the time, and the temperature is regulated by a smooth change of power.

A good example is the model of three-02 - Analog thermostat for incubator, the price of which does not exceed 1500 rubles. Since the 90s of the last century it was equipped with serial incubators. The device is easy to operate and comes with a remote sensor with 1 m cable, power cord and load meter wire. Technical specifications:

  1. Load capacity with a standard mains voltage of 5 to 500 watts.
  2. Adjusting range - 36-41˚S with an accuracy better than ± 0,1˚S.
  3. The ambient temperature of 15 to 35 ° C, the allowable humidity 80%.
  4. Contactless triac switch loads.
  5. Housing dimensions 120h80h50 mm.

More accurate adjustment provides digital instrumentation. Classical digital thermostat incubator for different analog signal processing method. Taken from the sensor voltage goes analog-digital converter (ADC), and only then falls into the comparator unit. Initially, a predetermined value in a digital form is compared with a desired temperature received from the sensor, and fed to the control device corresponding to the command.

This structure significantly improves the measurement accuracy, minimal dependent on ambient temperature and noise. Stability and sensitivity are usually limited capabilities of the sensor and discharge system. The digital signal allows us to derive the value of the current temperature on a liquid crystal or LED display board without complicating the circuitry. A significant part of the industrial model has advanced features that we consider the example of a number of modern devices.

Budgetary possibilities of the digital thermostat Ringder THC-220 is enough for homemade homemade incubator. Temperature control within 16-42˚S and external power outlet for connection to the load enables to use the device in the off-season - for example, to control the climate room.

For review summarizes characteristics of the device:

  1. Current temperature and humidity sensor in the area displayed on the LCD.
  2. Displayed temperature range from 100 ° C to -40˚S, 0-99% humidity.
  3. The selected features are displayed on the screen in the form of symbols.
  4. Step installation 0,1˚S temperature.
  5. Ability to adjust the humidity to 99%.
  6. 24 hour timer format with division into day / night.
  7. The load capacity of one channel 1200 watts.
  8. Temperature stability in the large rooms ± 1˚S.

More complex and expensive design is universal controller XM-18. Available device in China, and the Russian market comes in two versions - with English and Chinese interface. The export version for Western Europe in the selection, of course, preferable.

Development of the device does not take much time. Depending on whether the temperature should be in the incubator, you can adjust the factory program with the 4 keys. At 4 faceplate screens display the current values ​​of temperature, humidity, and further operating parameters. Display of modes is carried 7th LEDs. Audible and visual alarm when dangerous deviations greatly facilitates control. The possibilities of the instrument:

  1. Work 0-40,5˚S temperature range with an accuracy of ± 0,1˚S.
  2. 0-99% humidity adjustment with an accuracy of ± 5%.
  3. The maximum load on the channel of the heater 1760 watts.
  4. Maximum load humidity channels motors and signaling not more than 220 watts.
  5. The interval between the tumbling eggs 0-999 min.
  6. fan cooling time of 0-999 seconds. intervals between periods of 0-999 minutes.
  7. Acceptable room temperature -10 to + 60 ° C, relative humidity not exceeding 85%.

Choosing thermostats with sensor temperature for the incubator, consider the possibility of your design. Small incubator with enough head temperature and humidity control, and most of the additional expensive equipment options will remain unclaimed.

Despite the large variety of finished products, many people prefer to collect temperature control circuit for an incubator with his hands. The simplest version, shown below, was one of the most popular amateur radio designs in the 80s. Simple assembly and available element base overtighten drawbacks - dependent on the room temperature and the instability of network interference.

Amateur circuit operational amplifiers are often superior in performance industrial counterparts. One of these schemes, collected at the Shelter KR140UD6, the strength to repeat even for beginners. All items found in everyday radio end of the last century. When the healthy elements of the circuit starts to work immediately, and only needs to be calibrated. You can find similar solutions in other OU if desired.

Now more and more circuitry is on the PIC-controllers - programmable chips, whose functions vary by firmware. Made them thermostats have simple circuitry, the functional capabilities are not giving the best industrial designs. The scheme below is for illustrative purposes only, as it requires a corresponding EEPROM. If you have a programmer on amateur forums easy to download ready-made solutions, together with the firmware code.

By weight of the temperature sensor directly depends on the speed of operation of the regulator, because too massive body has great inertia. "Rough up" sensitivity miniature thermistor or a diode can be wearing to the detail section of the plastic sleeve. Sometimes a leak it is filled with epoxy resin. For single-row designs with the top heating sensor are better placed directly above the surface of the egg at an equal distance from the heating elements.

Incubation - not only profitable, but fun. Combined with technical creativity, for many it has become a hobby for life. Do not be afraid to experiment and wish you a successful implementation of the projects to life!

Make a thermostat for incubator with their hands

Maintaining optimal level of humidity and temperature is the fundamental conditions for the qualitative output calves. Depending on the breed of poultry and incubation steps, the temperatures must be adjusted. Temperature conditions for different species of birds able to vary within the 35 - 39 degrees Celsius. To control this vital indicator is designed for chicks temperature controller for incubator.

Many of today's incubators are equipped with analog thermostats that require frequent tuning, produced on the basis of the thermometer. Most often, in order to maintain the temperature at the right level now used mercury or alcohol thermometer.

The transition to a digital thermostat, which still bears the name of the electron, giving owners many benefits of incubators. Among them are the ability to provide the desired temperature conditions inside the device, making control of the operation of the heating elements, exercise visual control temperature based on the current performance, process automation, which does not require constant adjustment. Also energy savings occurs by turning off the heating element when the desired temperature is obtained.

Acquire a special thermostat stores or do it yourself by the scheme?

Almost all modern models are equipped with built-in thermostats incubators. Only occasionally there is a need to purchase this device separately or take the opportunity to make a device for monitoring their own performance.

Finished devices monitor mode necessary and fed to the signal if the faults occur. Made artisanal scheme simple thermostat can not always guarantee a 100% accuracy humidity and temperature readings. Even if you have mastered the assembly incubator at home, experts recommend to entrust the monitoring parameters of the product, assembled in the factory.

Many home-made incubators farmers use a simple thermometer. In this case, you need to constantly stay near the incubator. The thermostat allows you to control the coordinated work of the heating elements and, if necessary, automatically turns off. Only need to enable the optimal parameters, after which it will operate autonomously.

Buy ready-made thermostat or make it at home under the scheme - you decide.

Homemade thermostat for incubator is not so easy to create. Prefabricated devices are sophisticated and technically perfect, simple copying sometimes can not afford an inexperienced person.

There are two known variants today on how you can make the most of the thermostat circuit. The first and most technically complex manufacturing device is based on electrical circuits and devices. A high precision instrument actually do, if we have knowledge in the field of electro. The second option - to make a temperature regulator, based on second-hand thermostat. Suitable spent part previously served in iron or other household appliances. This manufacturing variant will be mastered by even a novice.

Consider both methods in more detail.

If you carefully consider the assembly diagram of such a device, you can make sure that the radio will be needed to build it.

Craftsmen typically purchase or find its own reserves zener among any type (it is required to ensure a constant voltage in the vicinity of 7 - 9 volts); a pair of transistors (one of a series of CT 315, the second - in a series of IP 42 or similar); thyristor in a series KU 201 KU-202 (wherein the letter designation must be H); 4 pieces of the diode series KD 202 (better if they are marked with the letters NA or N), capacity of at least 600 watts. Handling mode is a variable resistor having a resistance in the region of 30 - 50 ohms. It needs another relay type ISU (which stands for Multi-unified). Temperature sensor in such a device will act transistor arranged in a glass tube and laid on a tray of eggs.

When the controller is turned on in the contact network relay opens and the incubator receives heat from the tubes that are connected to a network with a voltage of 220 volts. In the case of disconnection from the network fault occurs the relay contacts, the battery begins to function, and heating lamps.

You can make the device more simple way, using the thermostat. His body must be filled with ether and reliable solder. When working, be careful, because the air tends to evaporate quickly and well. Ether is very sensitive to changes in the level of outside temperature. As a result, changing the state of the body.

Soldered to the thermostat housing screw fixedly connected with contacts, which causes a switch-off of the heating element at the right time. Adjust the temperature readings allows the rotation of the screw.

Such a device manufacturing method eliminates the use of complex wireless components and structural elements are mounted on a printed circuit board or mounted half way.

Before laying eggs in the incubator with a thermostat, which you decide to make on the basis of the thermostat, be sure to set parameters and to warm up the device.

Video "How to make a temperature controller in an incubator"

With this video you will get not only the scheme, but also step by step instructions for assembling the device regulating the temperature in your incubator.

Many people wonder how to create an incubator with his hands. Make such a structure, each capable of readily available materials.

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Comments and questions on the article

My friend mastered the assembly of domestic incubator, but the thermostat decided to buy a ready and happy with his work. Since I am not good at art, he decided to follow his example. After all, the plant employs professionals who comply with all the norms of manufacturing such devices.

My husband and a friend tried to make the device in the home, but experience has shown that it is not able to display the temperature as accurately as possible. We decided not to experiment more and buy ready-made. Maybe someone versed in such things, then really make a quality thermostat yourself.

Do not immediately good, the bad and then it will turn itself

Scheme can be simplified by a minimum of parts

Main element pin mercury thermometer

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