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WaFu Brothers will take you to learn about the air tightness detector!


How to choose a suitable airtightness tester?

In many industrial production fields today, air tightness detectors play an extremely important role, related to product quality and safety. In order to allow the majority of enterprises and related practitioners to better understand and use this key equipment, WaFu Brothers will introduce in detail the use methods, calibration specifications, operating procedures, parameter debugging, working principles, instrument prices, and Fault diagnosis and instrument maintenance, etc.

Working principle

  • Air tightness detectors are mainly based on different physical principles to detect the air tightness of products. Common ones includePrinciples such as direct pressure type, differential pressure type and flow type.
  • Direct pressure typeThe direct pressure air tightness detector injects gas at a specific pressure into the object to be measured, and then monitors the changes in the internal pressure of the object within a specified period of time. If the pressure changes beyond the set reasonable range, it means there is an air tightness problem. This principle is relatively simple and intuitive, and is suitable for general product testing that does not require extremely high accuracy.
  • Differential pressure typeThe differential pressure air tightness detector judges the air tightness by comparing the pressure difference between the standard product and the product being tested. Because it can effectively eliminate interference from external environmental factors, its detection accuracy is quite high, and it is often used in product testing fields with strict air tightness requirements such as electronic precision components and high-end automotive parts.
  • flow typeFlow-type air tightness detectors work by relying on the flow changes generated when detecting gas leaks. They have obvious advantages in some product testing scenarios that require clear data related to leak rates, such as the testing of some special products that have micro-leakage and require quantitative analysis.

How to use

When using an air tightness detector, the first step is to ensure that the instrument is in a stable working environment, connect the power supply and turn it on to preheat so that the instrument reaches its best working condition. Then, according to the characteristics of the product under test, select the appropriate testing tooling, properly install and fix the product on the tooling, ensure that the connection parts are well sealed, and prevent gas leakage from affecting the test results. Subsequently, on the instrument operation interface, according to the air tightness standard requirements of the product, accurately input the corresponding detection parameters, such as inflation pressure, pressure stabilization time, detection time, etc. After the parameter setting is completed, start the testing program, and the instrument will automatically inflate the inside of the product and perform air tightness testing. After the testing is completed, the testing results will be intuitively displayed on the display screen, and the operator will judge whether the product is qualified based on this.

Wafu instrument operation guide

Calibration specifications

In order to ensure the accuracy and reliability of the air tightness detector test results, regular calibration is essential. Calibration work should usually be performed by professionally qualified measurement institutions or professionally trained technicians. If you have the intention to purchase products from Washington Company, feel free toConsult us, we will provide you with the most professional knowledge and answers. In terms of calibration cycle, it is generally recommended to conduct a comprehensive calibration every six months to one year. However, if the instrument is used frequently or is in a harsh working environment, the calibration cycle should be shortened appropriately. During the calibration process, standard calibration instruments, such as high-precision pressure sensors, flow calibrators, etc., will be used to calibrate key indicators of the instrument one by one, such as inflation pressure accuracy, pressure detection resolution, flow measurement accuracy, etc. Make sure that all parameters of the instrument are consistent with the nominal values ​​and the error is within the allowable range.

operating procedures

Before using the air tightness detector, the operator must receive professional training and be familiar with the instrument's operation panel, each function button and the corresponding operating procedures. In daily operations, the established testing process must be strictly followed. From product installation, parameter setting to starting testing, every link must be taken seriously. Testing parameters must not be changed or operation steps simplified at will. After the test is completed, the test data should be recorded in a timely manner and properly stored to facilitate subsequent data tracing and analysis. At the same time, keep the working environment of the instrument clean and tidy to avoid dust, water vapor and other impurities from causing damage to the instrument.

But when you use WaFu Brothers' latest Fully automatic cabinet-type air tightness detector, The above tedious operation process can be greatly simplified. The operator only needs to simply put the product on the counter, and then adjust the measurement parameters to automatically complete air tightness testing, product laser marking, data recording and other tasks strong>, greatly saving operation time. The large screen data display makes the test results clear at a glance. The start and stop of the instrument can also be controlled by manual buttons, making it convenient for the operator to pause or resume testing at any time. wafu-hd-display.jpgwafu-manual-button Our instruments are not only excellent in performance, but also have first-class performance in appearance, operability, safety, etc. Our products have a clean appearance, are easy to operate, and are equipped with a new safety anti-hand pinching system. This fully automatic cabinet-type air tightness detector can also be used in many industries, such as electronic components, high-end automotive parts, aerospace vehicles, etc., and can be widely used in product testing fields in various industries. We also support customization services. If you want to purchase this product, please Contact us, we will wholeheartedly provide you with professional services.

Parameter debugging

Parameter debugging is a key link to ensure accurate detection of the air tightness detector. Different types and specifications of products have different requirements for air tightness testing parameters. For example, for small electronic components, the inflation pressure may only need to be set in a lower range, and the voltage stabilization time is relatively short. However, when testing the air tightness of large mechanical equipment, the inflation pressure needs to be increased accordingly, and the voltage stabilization and detection time are It also needs to be extended appropriately. Operators need to carefully debug key parameters such as inflation pressure, pressure stabilization time, detection time, and leakage threshold based on the actual situation of the product and past testing experience, and find the most suitable parameter combination for the product through multiple test tests. To ensure the accuracy of test results.

Instrument price

The price of air tightness detectors varies greatly due to many factors. From the perspective of detection principles, the direct pressure type is relatively cheap, usually ranging from a few thousand yuan to tens of thousands of yuan, and can meet some basic air tightness testing needs; the differential pressure type is generally priced in the tens of thousands due to its high precision and complex functions. Ten thousand yuan or even hundreds of thousands yuan; the price of flow-type models is roughly in the range of tens of thousands of yuan based on its specific functional configuration. No matter what style the price is, we still estimate the price based on the customer's preferences and requirements. We have no upper limit. As long as you dare to think and it is reasonable, we dare to do it! In addition, the brand, accuracy, detection range and additional functions of the instrument will also affect the price. Well-known brands of air tightness detectors with high precision, multi-function, and large detection range are often more expensive, but they can also provide more stable and reliable detection services and better after-sales protection.

Troubleshooting

During use, the air tightness detector may occasionally malfunction. Common fault phenomena include abnormal fluctuations in test results, failure of the instrument to inflate normally, incomplete data display on the display screen, etc. When abnormal fluctuations in test results occur, you must first check whether the product installation is properly sealed and whether there are external factors such as large air pressure changes or interference sources in the detection environment. If the problem still exists after external factors are eliminated, it may be a sensor failure inside the instrument. Or there is a problem with the detection circuit, which requires further inspection by professional maintenance personnel. If the instrument cannot be inflated normally, check whether the air source is supplied normally, whether the inflation pipe is blocked or leaking, whether the instrument's inflation valve is damaged, etc. Incomplete data display on the display screen may be caused by a hardware failure of the display screen itself or an abnormality in the software system, which also requires targeted investigation and repair by professionals.

Instrument maintenance

Good instrument maintenance can extend the service life of the air tightness detector and ensure that it is always in good working condition. After daily use, wipe the surface of the instrument with a clean and soft cloth to remove dust and stains. Regularly clean the inside of the instrument using professional cleaning tools and reagents, but be careful to avoid contact with key electronic components and sensors to prevent damage. For the connecting pipes of the instruments, check their sealing and integrity from time to time. If there are signs of aging or damage, replace them in time. At the same time, perform regular functional checks on the instrument, such as simple self-tests or testing using standard samples, so that potential problems can be discovered and solved in a timely manner. In short, the air tightness detector is a key equipment to ensure the air tightness of products in industrial production. In-depth understanding of all aspects of its knowledge, strict operation in accordance with specifications, and good maintenance work are of great significance to improving production quality and reducing production costs. We hope that through the introduction of this article, users can use this important detection tool more easily.

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