As a commonly used experimental equipment in fields such as biology and medicine, the precise temperature control and stable operation of an electric constant temperature incubator directly affect the accuracy of experimental results. The following provides a detailed explanation from three aspects: preparation before use, operating procedures, daily maintenance, and precautions:
1、 Preparation before use
1. Environmental adaptation
-The incubator should be placed on a horizontal and stable operating platform, with sufficient heat dissipation space reserved around it (recommended ≥ 30cm), avoiding direct sunlight or areas with large temperature differences such as heating and air conditioning vents.
-Ensure that the power supply voltage is consistent with the equipment label, and connect it to an independent power outlet. Do not share the circuit with other high-power appliances.
2. Initial startup inspection
-After opening the box door, wipe the inner walls and shelves with a soft cloth dipped in water to remove any dust or impurities left during transportation.
-Check the water level in the water tank (if it is a humidifying type). If there is a shortage of water, distilled water should be replenished in a timely manner to avoid direct addition of tap water causing pipeline blockage.
-Confirm that the sensor probe is unobstructed to ensure the accuracy of temperature monitoring.
3. Pre balancing debugging
-Set the target temperature in the unloaded state, start the equipment for preheating, and wait for the display screen to show that the actual temperature deviates from the set value by ≤± 0.5 ℃, indicating that the system has entered a stable state. This process usually takes more than 30 minutes, depending on the volume of the container.
2、 Operating standards
1. Sample placement principle
-Following the principle of "uniform distribution with gaps", maintain appropriate distance between samples to avoid stacking and obstructing air circulation.
-Liquid samples should be stored in sealed containers to prevent volatile substances from corroding internal components; Glassware should be handled with care to avoid collision and breakage.
2. Temperature and humidity control
-Accurately set temperature parameters according to experimental requirements, it is recommended to use gradient rise/fall mode to reduce severe fluctuations.
-If humidity control is required, regularly check the position of the wet ball gauze hanging. During the dry season, increase the water injection amount appropriately, and shorten the water change cycle in humid environments.
3. Dynamic monitoring and recording
-Real time observation of the actual temperature curve displayed on the LCD screen, and immediate shutdown to investigate the cause of abnormal fluctuations.
-It is recommended to record data every 4 hours during long-term operation for easy traceability and analysis.
3、 Daily maintenance and precautions
1. Cleaning and maintenance
-Clean the condenser filter screen after power outage every week, using compressed air blowing or soft bristled brush for dust removal; Disinfect the inner container with 75% alcohol every month.
-When not in use for more than a week, the water storage tank should be emptied and wiped dry to prevent the growth of mold.
2. Safety protection
-It is strictly prohibited to store flammable and explosive materials (such as ethanol) in the box. Such substances can easily cause danger in high temperature environments.
-Wear insulated gloves when taking and placing samples to avoid burns; When there is a sudden power outage, the power switch should be quickly turned off and restarted after the power supply is restored.
3. Troubleshooting
-Common overheating alarms are often caused by fan failures leading to heat accumulation. In this case, it is necessary to check whether the fan motor is operating normally; If the temperature does not meet the standard, the temperature control instrument needs to be calibrated or the heating tube needs to be replaced.
-Stop the machine immediately when there is abnormal noise or odor, contact professional personnel for maintenance, and do not disassemble the core components by yourself.
Mastering the above details can significantly improve the service life and experimental success rate of electric constant temperature incubators. Standardized operations can not only ensure data reliability, but also reduce security risks, especially in sensitive experiments such as cell culture and microbial reproduction, where subtle environmental differences may affect the final results.