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Types of air tightness detectors commonly used in the market

What kinds of air tightness detectors are popular in the market? Today, according to this question, Harris technology collected the purchase information of air tightness tester from manufacturers in all walks of life,meanwhileQuery informationplaceBased on the collected market demand for air tightness detectors, Harris technology will popularize the most commonly used brands of air tightness detectors in the market,as well asType of air tightness detector.

Hermes technology is engaged in air tightness testing industryIn the past 11 years, more than 800 old customers in the market of hiris technology have a very good understanding of hiris technology's HC classic series air tightness tester, whether it is the working principle of the air tightness tester or the stability of the tester. How to choose the air tightness tester for the new customers who have not contacted the air tightness tester of Harris technology? What brand of air tightness tester do you want to choose? Which type of air tightness tester is the best? These problems still make manufacturers not know how to make decisions. According to the type of air tightness tester and the model of air tightness tester, Harris technology introduces it to the industry.

1、 According to the classification of test methods, the types of air tightness testers commonly used in the market are as follows:

First: positive pressure air tightness detector

Through our precision pressure regulating valve, a certain pressure of compressed air is charged into the test product. At the same time, we pay attention to the gas change in the product in real time on the Harris precision detector. By paying attention to the gas change, we can judge the product leakageleakOr not. Our positive pressure air tightness tester has three different pressure testers: low pressure tester, standard tester and high pressure tester.

The second: negative pressure air tightness detector

Negative pressure air tightness detector is also called vacuum air tightness detector. It is to pump out the air of the product, and the internal of the product is in a vacuum state. At the same time, the Harris precision detector pays real-time attention to whether the external gas will leak into the internal of the product to judge the leakage of the productleakOr not.

Third: flow tester

The method of instantaneous loss flow is used to test the tightness of the tested product. It is divided into mass flow detection and volume flow detection.(generally used for pipe blockage test.)

The main principle is that the sensor directly detects the leakage of the productleakSpeed, and real-time display, can basically eliminate the original pressure drop methodleakThe time accumulation in the test is fast, and the leakage unit can be displayed directly. It is suitable for the products that require the test efficiency.

Fourth: multi channel air tightness tester

along withMany manufacturers and customersEfficiency of productionincreaseOne corresponding to one product testing can no longer meet the needs of customers, multi-channel air tightness tester has been popularized in the market, testing multiple products at the same time, which is the mainstream air tightness tester testing method in the current market.

Display of multichannel air tightness tester


Multi channel air tightness tester interface display:

2、 According to the model and name of the air tightness tester purchased in the market:

1. HC classic series air tightness tester

Classic classic series is Harrisscience and technologyA very mature and stable instrument. With its own high precision and stability, it has more than ten yearsMore than 2000 sets of equipment are deployed in more than 800 customer factories. The function and performance parameters of the instrument can meet the needs of the vast majority of customers, and also take into account the cost performance.

High sensitivity pressure sensing and regulating unit, with advanced differential pressure software algorithm, the minimum resolution can reach 1pA, the algorithm has been approved by the state

Home patent.

The patented technology independently developed by Harris, & amp; ldquo; IVT pneumatic seal valve island & amp; rdquo;, Greatly improve the test accuracy, ensure the stability of the instrument, inflation speed

It has also been greatly improved.

Multiple test functions: the instrument integrates two positive and negative pressure forms and eight test methods: two pressure forms and five test methods can be used

Written intoMore than 20 test functions.

It has 100 groups of subroutines, each group of subroutines can be programmed independently, can be selected and combined to meet various complex test requirements.

Full touch large screen intelligent operating system, graphical UI design based on detection process, simple and clear operation interface, easy to teach and learn.

A variety of pressure regulating components and ranges are available, and a wide range of air pressure (- 100kpa-1mpa) is available. The selection of electronic pressure regulating valve can realize multi group pressure regulation

Sequence test.

Multiple communication interfaces: built in RS232 serial port, RJ45 network port, USB communication interface, LTP external I / O control port, supporting multiple communication protocols.

The bar code scanning function and printer can be purchased to facilitate product data management and quality traceability. The historical records of the instrument can be up to 200000 and can be exported in batches

Out to the computer.

The standard volume identification function can automatically identify the volume of the sample to be tested, and can measure and judge the leakage rate by volume.

Ultra high stability and ease of use, after the market rigorous test.

A variety of accessories are available, including inflatable bypass, quick connector and standard leak. At the same time, the instrument supports third-party calibration and can issue calibration report.

2. HL series air tightness tester

The leader series is Harrisscience and technologyThe latest is a collection of Harrisscience and technologyA product with many years of experience and technology is integrated with the future intelligent gene. It is a high-end instrument mainly developed for high-precision pressure requirements and complex test process. Can easily cope with a variety of complex conditions, a collection of Internet of things andAI technology, support a variety of communication protocols, convenient docking with MES system; It is very suitable for modern intelligent factory.

The whole system is equipped with automatic pressure regulating module as standard, which can realize multiple pressure sequence tests, and has two inflation modes of fast inflation and uniform inflation.

Using the latest hi OS 2.0 system, the interface is more friendly, the operation is simple, and a number of humanized improvements are made. Cooperate with & amp; ldquo; IVT& rdquo; Pneumatic sealing valve island

Give birth toThere are more than 20 testing methods.

Learning function based on AI technology; The parameters such as pressure, time and judgment standard can be automatically found out the best through multiple learning in the test process

Results choose the best test time, the difficulty of setting is greatly reduced, more easy to start.

It has 100 groups of subroutines, each group of subroutines can be programmed independently, can be selected and combined to meet various complex test requirements.

New pressure sensing chip, automatic environment drift correction, automatic zero calibration of sensor; Matching & amp; patents; ldquo; Intelligent differential pressure & amp; rdquo; Algorithm, minimum

Resolution better thanThe algorithm has obtained the national patent.

Multiple communication protocols and interfaces: built in RS232, RS485 serial port, RJ45 network port, USB communication interface, LTP external I / O control port, support

holdTCP / IP MODBUS can bus protocol.

Powerful Internet of things function, optional upper computer monitoring software, realize remote management, monitoring and quality traceability. And it can communicate with MES system

Connect to the network.

The bar code scanning function and printer can be purchased to facilitate product data management and quality traceability. The historical records of the instrument can be up to 500000 and can be exported in batches

Out to the computer.

A variety of pressure regulating components and ranges are available, and a wide range of air pressure (- 100kpa-2mpa) is available.

With all-round technical R & D support, we can develop targeted instruments according to your requirements. Such as pressure and flow mixed instrument, the test function can also be used

Customized, such as mature: Micro product detection function, battery pack detection function and so on.

A variety of accessories are available, including inflatable bypass, quick connector and standard leak. At the same time, the instrument supports third-party calibration and can issue calibration report.

3. HN pilot series air tightness tester

The navigation series is Harrisscience and technologyIt is an instrument specially designed for automation field. It has very high flexibility and scalability. With modular design, the control system is independent of the executive part. The system can control multiple execution modules to form multi-channel test. At the same time, it also takes into account the cost performance!

High flexibility, the function can be added or deleted according to the demand.

Strong expansibility, multiple sensors.

It can quickly form multi-channel test, and greatly shorten the development cycle of automation.

The analysis and control system can adopt industrial control computer plus control card or embedded system to facilitate the docking and implementation of MES system.

Screen size support customization, embedded system standard 7 & amp; rdquo; Customizable 10.4 & amp; rdquo; 12& rdquo; 15& rdquo;; Industrial computer mode, screen size is not limited.

The standard configuration adopts Harris full function valve island, with positive and negative pressure forms and8 test methods; There are two types of pressure and five types of test

The method is written asMore than 20 test functions.

Multiple communication protocols and interfaces: built in RS232 and RS485 serial ports, USB2.0 interface, external I / O control port.

It can be equipped with bar code scanning function and upper computer software to facilitate product data management and quality traceability, with up to 500000 instrument history records.

Air tightness tester is also known as tightness tester or waterproof tester. Although the name is different, but are used to test the tightness of the product. The principle of the instrument is to detect the tightness of a product with pressure attenuation. The so-called pressure attenuation method means to pressurize a product to see the pressure change of the gas. There are two situations. One is that the product has air filling holes. We will directly inflate and pressurize the product, then cut off the gas source and observe the change of gas pressure. If the pressure drops, it means that the product leaks and does not drop. The second is that the product does not have air filling holes. We need to make a sealed cavity, which is the same size as the shape and specification of the product, that is, a grinding tool, to fit the product as much as possible, because the test results are more accurate. Then we pressurize the gas, and the gas will fill the space between the product and the grinding tool, and then cut off the gas source, Check whether the gas pressure has dropped. If there is, it will leak, and the gas will leak into the product. If there is no drop, it is good. Mainly use compressed gas to detect whether a product is leakingleak。 Because this kind of air tightness testing method is easy to operate, and it is nondestructive testing for testing products, and it is the most advanced testing method at present, so it is quickly welcomed by customers.

Before there was no air tightness test, many manufacturers used the method of soaking water to test whether a product is waterproof. It needs to put the product in water and wait for the product to dry before the air tightness can be detected again, which is cumbersome; At the same time, if there is leakage in many electronic productsleak&l

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