Q&A

Features of the thermal shock test chamber:
It adopts a human-machine interface temperature and humidity controller, which is reliable in performance, easy to operate, and the control technology reaches the current level. The cost performance is significantly better than similar imported equipment. This product adopts the BTSC (balanced temperature and humidity control) method for temperature regulation and controls the SSR (solid state relay) in P.I.D. mode, ensuring that the heating and humidification capacity of the system is equal to the heat and moisture loss. It is an ideal equipment for conducting constant temperature and humidity tests.
Daily maintenance of the cold and heat shock test chamber:
① To ensure its good ventilation and heat exchange performance, the condenser should be cleaned once every three months. For the refrigeration system using water cooling, in addition to ensuring the water pressure and temperature within the specified range, the corresponding flow rate must also be guaranteed. For the refrigeration system using air cooling, the condensing fan should be regularly inspected and the condenser should be cleaned of dirt and dust.
② When the three-box cold and heat shock test chamber is placed in a low-temperature environment for a long time, after completing one cycle, the temperature should be adjusted to 85 degrees, and the box door should be slightly opened for two hours of defrosting treatment. At the same time, after each test, the temperature should be set to be similar to the ambient temperature, and the equipment should work for 30 minutes before cutting off the power supply. The working chamber wall should be wiped clean to maintain a clean and dry environment.
③ Regular cleaning of the evaporator: Depending on the cleanliness level of the test items, under the action of forced air circulation, many small particles and objects will condense on the evaporator, and regular cleaning is necessary.
④ Cleaning of the box body, waterway, and humidifier of the cold and heat shock test chamber: If the waterway is not smooth or the humidifier is clogged, causing the humidifier to burn dry, it may damage the humidifier. Therefore, the waterway and humidifier must be cleaned regularly.
⑤ Equipment relocation of the cold and heat shock test chamber should be carried out under the guidance of technicians to avoid equipment damage. If the customer relocates the equipment by themselves, a professional electrician must be present to confirm the correct circuit before starting the equipment operation. Otherwise, the relevant components of the equipment may be burned out.
⑥ If the equipment is not used for a long time, it should be powered on regularly every half a month. The power-on time should be no less than one hour, and the operation of the relevant components of the equipment should be checked to ensure they are functioning properly.
To ensure that mechanical equipment is always in a good technical condition, operates normally, improves mechanical integrity and utilization rate, extends the service life of the equipment, reduces operating and maintenance costs, and ensures safe production, it is necessary to strengthen the maintenance and upkeep of the cold and heat shock test chamber equipment.
1. Carefully check the operation sounds of all cylinders and moving components. Based on "listening", determine whether the working condition is normal. If any abnormal sounds are found, stop the machine immediately for inspection.
2. Maintenance must follow the principle of "equal emphasis on maintenance and repair, prevention first". Correctly handle the use, do not only use without maintenance, only repair without maintenance.
3. Pay attention to the indication values of pressure gauges on all pressure gauges, storage tanks, coolers, and lubricating oil pressure gauges whether they are within the specified range.
4. Each group must carry out the maintenance work of various mechanical equipment in accordance with the mechanical maintenance procedures and maintenance categories. Special situations require special handling. Generally, it should not exceed half of the specified maintenance interval.
5. Pay attention to whether the temperature rise of the motor, bearing temperature, voltage meter, and current meter indications are normal. The current must not exceed the rated current of the motor. If exceeded, find the cause or stop the machine for inspection.
6. Maintenance personnel and maintenance departments should achieve "three inspections and one handover (self-inspection, mutual inspection, dedicated inspection and one-time handover qualification)", and constantly summarize maintenance experience.
7. Regularly check whether there are any debris or conductive objects inside the motor of the cold and heat shock test chamber, whether the coil is damaged, whether the stator and rotor are rubbing. Otherwise, the motor will be burned out after startup.
8. The maintenance of the cold and heat shock test chamber equipment for machinery should ensure quality. The maintenance items, quality of maintenance and problems found during maintenance should be recorded.
9. If it is a water-cooled compressor and water supply is interrupted after a power failure, it is necessary to avoid cracking of the cylinder due to uneven temperature. After parking in winter, the cooling water should be drained to prevent cracking of the cylinder and other parts.
10. Clean the condenser once every three months (for the refrigeration system using air cooling, regularly inspect the condensing fan of the condenser, and clean the condenser to ensure).
11. If the cold and heat shock test chamber equipment is used for a long time at low temperatures, after completing one cycle, set the temperature to 110 degrees, slightly open the box [ ] for two hours of defrosting treatment; at the same time, it is necessary to maintain the temperature at a level close to the ambient temperature, work for 30 minutes, then cut off the power supply, and clean the inner wall of the working chamber.
12. Regular cleaning