Constant temperature and humidity test chamber wet ball gauze correct placement method
August 04 08:29:06, 2025
In a constant temperature and humidity test chamber, the wet bulb gauze plays a crucial role in accurately measuring humidity during damp heat testing. Proper installation and maintenance of the wet bulb gauze are essential to ensure reliable performance and avoid incorrect readings. Here’s how it should be done:
1. Carefully remove the wet bulb gauze from its packaging and cut it to approximately 10 cm in length.
2. Submerge the lower end of the gauze into the water reservoir to allow it to absorb moisture easily. Then, hang or place it near the humidity sensor so that it can effectively interact with the air inside the chamber.
Regular inspection and maintenance of the wet bulb gauze are equally important. The gauze must be properly positioned on the wet bulb sensor at the top and placed in the designated gauze well at the bottom. This ensures that it remains moist and continues to function as intended. If the gauze is not installed correctly, the humidity sensor may display an inaccurate reading, such as 100% humidity, even when the actual level is lower. This can lead to improper test conditions and unreliable results.
Before conducting any humidity test, always check whether the wet bulb gauze is in place. If it is hanging, verify that it is still wet and has good moisture absorption capabilities. If the gauze becomes dry, discolored, or loses its ability to retain moisture, replace it immediately. A poorly maintained gauze can significantly affect the accuracy of the test and compromise the entire process.
Proper handling and regular checks of the wet bulb gauze are vital for maintaining the integrity of your humidity testing procedures. Always follow the manufacturer's guidelines and ensure that all components are in optimal working condition.