Characteristics of thermostatic oscillator and related troubleshooting methods
The oscillator manufacturer understands that the thermostatic oscillator is a biochemical instrument that combines a thermostatic water bath and a temperature-controlled oscillator. Smooth oscillation, no spray splash, fine temperature, digital display, the inner cavity is made of stainless steel, good corrosion resistance, especially for a variety of comparative experiments, is the plant, biological, microbiological, genetic, viral, environmental protection, medical and other scientific research, education, production departments for fine culture and preparation of indispensable laboratory equipment.
The main features of the thermostatic oscillator are as follows, according to the oscillator manufacturer:
1. Large LCD screen displays temperature with blue background light and milky white font, beautiful and generous, displaying all key parameters, intuitive and convenient.
2. Adopt high-precision imported probe, fine measurement, full intelligent control, fine temperature control. Setting temperature and measuring temperature are displayed on the LCD screen, which can understand the whole process of temperature control and give over-temperature alarm.
3. Speed touch setting, full intelligent closed-loop control, constant speed operation throughout, pause start at any time, high performance DC motor, safe and reliable.
4. Microcomputer control, accurate travel time, large screen display travel time, temperature control can be carried out online with timer, or separately, according to customer requirements.
5. Power failure memory protects the set temperature and speed, and keeps the original setting value after power failure and restart.
6. The oscillator manufacturer believes that the system is equipped with motor overload stop protection function. During operation, if the mechanical system fails and exceeds the z-high load power of the motor, the system will stop working.
7. The inner cavity is made of stainless steel with good corrosion resistance. The inner wall of stainless steel work box is equipped with splash-proof partition, so there will be no splashing.
8. The stainless steel spring bottle holder is especially suitable for the cultivation and preparation of biological samples, and especially for various comparative tests.
The oscillator manufacturer understands that the common failures of thermostatic oscillators are as follows:
1. No heat, normal oscillation.
2. The heating is normal and the oscillation speed is slow. Oscillator manufacturers believe that the solution: open the side panel of the control cabinet, turn on the power supply, set the temperature control to 0 degrees (that is, no heating), turn on the oscillation switch, and adjust the speed to high. Find two adjustable resistors on the speed control board, and then adjust the right one counterclockwise.
3. Heating is normal, but the oscillation does not work. Oscillator manufacturers that the solution: open the side panel of the control cabinet, turn on the power, set the temperature control to 0 degrees (that is, no heating state), open the oscillation switch, adjust the speed to high, and use the AC250 gear multimeter to measure whether the transformer has 220V voltage input. Otherwise, the switch will be disconnected. On the contrary, measure whether the transformer has 12V voltage output, if not, the transformer will be disconnected. Do not replace the transformer easily at this point, which is mainly caused by a short circuit fault in the circuit board or the rectifier in the motor. If the above situation is eliminated, please replace it. 12 V is normal. Check if there is DC 12 voltage (DC 50V). If not, the rectifier bridge is disconnected and replaced. If yes, check whether there is voltage output from the motor. If yes, it means that the motor is damaged or the mechanical parts are rusted because the instrument has not been used for a long time, otherwise the high power tube in the control panel will be damaged. The above method can basically solve the situation of non-oscillation.
The temperature control system of the thermostatic oscillator according to the oscillator manufacturer is an integrated temperature sensor that combines measurement and conversion. It is characterized by accurate measurement, no need for debugging, and good linearity of measurement range. Adopting microprocessor and proportional width adjustable heating principle, the temperature control precision is high, uniformity is good, stable and reliable. With temperature alarm function and intelligent timing selection function to ensure the safety of experimental items.