Product name: YCP-200 carbon dioxide incubator
Adopting international advanced technologies such as ultrasonic sensor, digital display and wide temperature control, it has the advantages of simple operation, high reliability, good stability and long service life, and is widely used in medical treatment, food, bioengineering, scientific research and teaching.
Technical performance and parameters
Working temperature range: room temperature +3℃-60℃
Constant temperature control accuracy: 0.2℃
Control range of CO2 concentration: 0%-20%
Control accuracy of CO2 concentration: 0.2% at 5%.
Effective volume of studio: 200L L l.
The CO2 concentration usually rises to the preset value (5%) in less than 10 minute.
Product name: carbon dioxide incubator
The CO2 incubator is mainly composed of three parts: box structure, temperature control system and CO2 concentration control system.
1. The box structure consists of shell, thermal insulation material and stainless steel water jacket. The design of studio is the key. The water jacket method is adopted, that is, except the glass door on the front, the other five sides are filled with water-filled stainless steel interlayers. Through the circulation of hot water, the studio is surrounded by the interlayer of warm water, so the heating is uniform and constant, the temperature rises quickly and the temperature drops slowly, and even if the power is cut off for 5-6 hours, the cell survival is guaranteed. Double-door design, the inner glass door is convenient for observing cell growth and has little interference to the environment; The inner side of the outer door is equipped with an automatic temperature control liner, so that the glass door is not dewed and is not affected by the change of environmental temperature. The fan in the studio makes gas circulation, making the temperature of the studio and CO2.
The concentration is uniform. The top layer of water jacket adopts stepped design (which has been patented by the state), which not only ensures the uniformity of water layer at the top of incubator, but also avoids the influence of high temperature of fan motor and environmental changes on the temperature uniformity of studio. The manufacturing process can also ensure the size reduction.
2. The temperature control system adopts three-way detection and three-level control circuits, as well as circuits to prevent overheating. (While some imported incubators are single-channel detection and secondary control circuits) The temperature sensor is an advanced voltage-type integrated circuit temperature sensor, rather than the commonly used sensors such as thermal cathode, semiconductor and thermocouple.
3. Ultrasonic sensor is used for 3.CO2 concentration control, which has the advantages of stable performance, fast detection speed, adaptability to indoor humid environment, long service life and good linearity (this technology has obtained national patent). However, most similar products at home and abroad use heat conduction and infrared rays. Thermal conductivity sensor structure Thermal conductivity sensor is simple in structure and low in cost, but it is too sensitive, greatly influenced by the environment and prone to zero drift. The infrared sensor can't work in a humid incubator, so an external sensor is adopted, and the gas in the incubator is pumped out by an air pump, and then it is detected after condensation and dehumidification, and then the gas returns to the incubator. In this way, the pipeline is complex, the mechanical loss is large, the detection result is lagging behind and the failure rate is high.
Automatic control of CO2 concentration
As long as a set value is given, the instrument will automatically control the CO2 concentration. Compared with the flowmeter, it has the advantages of simpler operation, higher accuracy and better stability.
◆ Adopt patented water jacket structure.
By adopting the patented water jacket structure, the culture chamber is contained by the interlayer of water to the maximum extent, which increases the capacity of the water jacket and contributes to high reliability and stability; Seamless welding makes it difficult for bacteria to grow.
◆ Accurate temperature control
Adopt three integrated temperature sensors to accurately control the water temperature, door temperature and room temperature, so that the temperature of the incubator is rarely affected by the change of environmental temperature; Over-temperature double-layer protection, high safety.
◆ Adopt patented ultrasonic method to measure CO2 concentration.
Adopt ultrasonic sensor, no mechanical wear, long service life, good stability, high humidity is not affected.
◆ One machine can be used for both purposes.
The temperature and CO2 concentration are controlled separately, and the CO2 control system is turned off, which can be used as a high-precision incubator alone.
◆ Simple operation and intuitive display.
Digital display temperature, CO2 concentration, door heating, water heating and water level change are all displayed by LED.
◆ Double glass door
The 200-liter box is designed with two double glass doors, which can greatly reduce the influence of opening the door on the culture room and is conducive to the rapid recovery of the culture environment.
◆ Miniaturization
The 50-liter box can be used as a desktop incubator; Because of its small size, the temperature and CO2 concentration recover quickly, especially saving gas.
Carbon dioxide incubator
The carbon dioxide incubator consists of a box structure, a temperature control system and a CO2 concentration control system.
◆ The box structure consists of shell, thermal insulation material and stainless steel water jacket. The design of studio is the key. Water jacket technology is adopted, that is, except the front glass door, the other five surfaces are all stainless steel interlayers filled with water. Hot water circulates, and the water interlayer with the same temperature surrounds the working room. Uniform heating, constant temperature, fast heating and slow cooling are the advantages of this studio. Although the power is cut off for 5-6 hours, it can also make cells alive. It adopts double-door design, and the glass door inside is convenient for observing the influence of dew. The air in the working room can be circulated by a fan to make the temperature and CO2 concentration in the working room uniform. The top of the water jacket is stepped (national patent has been declared) to ensure the uniformity of the material layer in the incubator and prevent the high temperature in the workshop. Manufacturing technology can also ensure the shape of the incubator.
◆ The temperature control system adopts three-way detection, three-level control and high-temperature protection circuits. (Some imported incubator circuits are single-channel detection and two-step control.) The temperature sensor adopts an unusual voltage concentration circuit.
◆CO2 concentration control adopts ultrasonic sensor, which has stable performance, fast detection speed, long service life and good linearity. (Declared nationality patent). But similar products in the world use heat conduction and infrared rays. Thermal conductivity sensor has simple structure and low sensitivity, but it is sensitive to environmental influence and prone to zero drift. The infrared sensor can't work in a humid incubator, so it is used together with an external sensor by pumping in air and checking it after freezing, and then sending it back to the incubator. The system has complex pipeline, large mechanical loss, lagging detection results and high failure rate.
Automatic control of CO2 concentration and flow comparison after set value, simple operation, gas saving, high precision and good stability.
◆ The patented water jacket configuration makes the incubator surrounded by water interlayer, and the water jacket capacity is large.
◆ Three integrated circuit sensors are used to accurately control the water temperature, door temperature and room temperature to prevent the influence of environmental temperature. Over-temperature, double-layer safety protection.
Adopt ultrasonic sensor, with low mechanical loss, long service life and good stability, which is not affected by high humidity.
◆ Temperature and CO2 concentration can be controlled independently. Work alone with high precision.
◆ Digitally display temperature and CO2 concentration, and LED display door temperature rise, water temperature rise and water level change.
◆ The large incubator (200L) adopts double glass doors to prevent the impact of opening the door and quickly restore the environment.
◆ The small incubator (50L) can be used as a desktop to quickly restore the temperature and CO2 concentration.