1. The walk-in temperature and humidity test system must be operated and maintained by special personnel. Strictly abide by the rules of operation of the system to prevent others from operating in violation of the regulations.
2. The system usage file should be established to facilitate the maintenance and repair of the system. The usage file shall record the start and end time (date), type of test, and ambient temperature of each operation of the system; when the system fails, the fault phenomena shall be described in as much detail as possible; the contents of the maintenance and repair of the system shall also be as much as possible. Record in detail.
3. If the walk-in temperature and humidity test system is not used for a long time, it will affect the effective service life of the system. Therefore, the system must be started at least once every 10 days; do not stop the system for a short time, and start the system every hour. The number of times should be less than 5 times. The interval between start and stop should not be less than 3min. Do not open the gate of the walk-in temperature and humidity test system at low temperature to prevent damaging the door seal.
4. The main cabinet body of walk-in temperature and humidity test system shall be protected during use, and shall not be subject to strong collision of sharps or blunt instruments.
5. Perform a test of the main power switch (earth leakage circuit breaker) once a month to ensure that the switch can be used as a leakage protector under load capacity. The specific steps are: First, please confirm that the main power switch is turned to "ON", that is, the system is powered on, and then press the test button. If the breaker of the leakage circuit breaker falls, this function is normal.
6. Leakage current, overload, and short circuit protection characteristics of the leakage switch are all set by the manufacturer. They must not be adjusted during use to avoid affecting the performance. After the leakage switch is disconnected due to a short circuit, the contacts must be inspected. If the main contact is severely damaged, When there are pits, repairs are required.
7. To ensure that the cooling water supply is normal and clean, clean the cooling water filter of the refrigerator once every 30 days, and clean the water tower. If the local air quality is relatively poor, and the dust content in the air is high, it should generally be cleaned in about 7 days. Cooling tower reservoir.
8. The test product placed in the walk-in temperature and humidity test system should have a certain distance from the air intake and exhaust ports of the air conditioning channel so as not to obstruct the circulation of air.
9. Once a year, use a vacuum cleaner to remove dust from the distribution room and the water circuit room. Once a month, use a dry cloth to clean the dry and freezer unit to collect water.
10, over-temperature protector action test. The temperature of the over-temperature protector is set lower than the temperature of the cabinet. If there is an E0.0 alarm and bee buzz, it indicates that the function is normal. After completion of the above test, the temperature protection settings should be set properly again, otherwise it may cause undue suspension.
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