Selection and Maintenance of Test Chambers

Selection and Maintenance of Test Chambers

Constant Temperature and Humidity Test ChamberIt has been widely used in fields such as electronics, national defense technology, chemical engineering, machinery manufacturing, and aerospace.

1. Three major purchasing suggestions for constant temperature and humidity test chambers are to ensure that users make correct and scientific purchases when selecting constant temperature and humidity test chambers. The three main reasons to choose a constant temperature and humidity test chamber are the following three aspects to consider:
　　
1. Core technology of constant temperature and humidity test chambers;
　　
2. After-sales service of constant temperature and humidity test chambers;
　　
3. Transaction price of constant temperature and humidity test chambers.
　　
Only first-class core technology can ensure the testing precision and accuracy of constant temperature and humidity test chambers, as well as the service life of the test chambers. Furthermore, for large or high-priced products, after-sales service is often the most valued aspect by users. Only comprehensive after-sales service can solve a series of maintenance and care issues for customers after purchasing the machine. Additionally, price is an important factor determining customer interests; a cost-effective constant temperature and humidity test chamber can allow customers to purchase practical and durable testing equipment.
　　
Only a reasonable combination of these three points is the key to the choice of constant temperature and humidity test chamber users.

2. How to maintain and clean the constant temperature and humidity test chamber in daily work.
　　
1. Cleaning and maintenance of the interior and exterior of the constant temperature and humidity test chamber.
1) Before operating the constant temperature and humidity test chamber, impurities inside should be removed.
2) The distribution room should be cleaned at least once a year; during cleaning, a vacuum cleaner can be used to remove indoor dust.
3) The exterior of the chamber should also be washed at least once a year; during cleaning, simply wipe with soapy water.
　　
2. Inspection and maintenance of the humidifier: The water in the humidifier should be changed once a month to ensure water quality is clean, and the humidifying water tray should be cleaned once a month to ensure smooth water flow.
　　
3. Check the over-temperature protector of the constant temperature and humidity test chamber: When the test chamber is operating, the set maximum value of the over-temperature protection should be 20℃~30℃ higher. When the temperature inside the test chamber reaches the set point of over-temperature protection, the power supply to the heater will stop, the "OVERHEAT" warning light will turn on, but the fan will continue to operate. If it runs for a long time without supervision, please ensure to check the over-temperature protector before operation to see if it is set properly [the setting for the wet bulb over-temperature protector is 120℃].
　　
4. Cleaning the dust from the condenser: The condenser should be maintained regularly every month, using a vacuum cleaner to remove dust attached to the condenser's heat dissipation mesh or using high-pressure air to blow away the dust.
　　
5. Checking and adjusting the water level of the wet bulb: The water level in the collection tank should not be too high to prevent overflow or too low to affect the wet bulb's accuracy. The water level should be kept about six-tenths full. The adjustment of the water level in the collection tank can be done by adjusting the height of the collection box.
　　
6. Replacement of the wet bulb testing cloth: When the surface of the testing cloth is dirty or hard, or after completing temperature control, the testing cloth must be replaced before continuing with humidity control. The testing cloth should be replaced approximately every three months, and when replacing, a clean cloth should be used to wipe the temperature sensor. The new testing cloth should be cleaned before use.

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