The walk-in constant temperature and humidity test chamber is a large-scale temperature and humidity detection test room where the manufacturer conducts non-standard design and production according to the customer's requirements. Its customization price can be said to be quite high, if it is due to improper operation or improper maintenance. Caused equipment failure, maintenance costs are no small sum of money, some customers will say "the equipment has a one-year warranty, failure to find manufacturers to repair it on it," but users you must know that any product Free warranty is a prerequisite, in the following circumstances, although during the effective warranty period, it is also necessary to collect technical or material fees:
1) Damaged due to natural disasters.
2) Failure due to user's fault or operation error. 3) Damage caused by failure to use the power supply voltage as required. 4) Lending to others and resulting in failure. 5) Self-reforming due to failure. 6) Self-correcting and resulting in failure. 7) Inadvertent transfer or transportation failure. Therefore, the correct operation of equipment is the key, and daily maintenance is also very important.
1. The walk-in constant temperature and humidity testing room 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 of the system. The usage file shall record the start and end time (date), type of test, and ambient temperature for each operation of the system; when the system fails, the fault phenomena should be described as detailed as possible; the contents of the system maintenance should also be as detailed as possible. Records.
3. When the walk-in constant temperature and humidity test chamber is stopped 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 running for a short period of time. The number of starts should be less than 5 times. The time interval between start and stop should not be less than 3min. Do not open the door of the test room at low temperature to prevent damaging the door seal band.
4. Main body of walk-in type constant temperature and humidity test chamber shall be protected during use and shall not be subject to strong collision of sharps or blunt instruments.
5. The main power switch (earth leakage circuit breaker) action test is performed once a month to ensure that the switch is 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 is a pit, it needs to be done.
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 constant-humidity test chamber shall have a certain distance from the air inlet and outlet 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 report* and a bee sound, 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.
1) Damaged due to natural disasters.
2) Failure due to user's fault or operation error. 3) Damage caused by failure to use the power supply voltage as required. 4) Lending to others and resulting in failure. 5) Self-reforming due to failure. 6) Self-correcting and resulting in failure. 7) Inadvertent transfer or transportation failure. Therefore, the correct operation of equipment is the key, and daily maintenance is also very important.
1. The walk-in constant temperature and humidity testing room 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 of the system. The usage file shall record the start and end time (date), type of test, and ambient temperature for each operation of the system; when the system fails, the fault phenomena should be described as detailed as possible; the contents of the system maintenance should also be as detailed as possible. Records.
3. When the walk-in constant temperature and humidity test chamber is stopped 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 running for a short period of time. The number of starts should be less than 5 times. The time interval between start and stop should not be less than 3min. Do not open the door of the test room at low temperature to prevent damaging the door seal band.
4. Main body of walk-in type constant temperature and humidity test chamber shall be protected during use and shall not be subject to strong collision of sharps or blunt instruments.
5. The main power switch (earth leakage circuit breaker) action test is performed once a month to ensure that the switch is 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 is a pit, it needs to be done.
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 constant-humidity test chamber shall have a certain distance from the air inlet and outlet 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 report* and a bee sound, 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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