The leak detector is developed based on the principle of air differential pressure method. It can detect small leaks in workpieces in a short period of time, and users can set various inspection parameters and discrimination standards according to their needs. The leak detector will automatically perform operations such as inflation, balancing, detection, judgment, exhaust, display, alarm, printing, and selection to minimize human influence, with high efficiency and semi automation. And it is stable and reliable, very suitable for use on the workshop site.

The working principle of a leak detector varies depending on the gas path design scheme. The basic principle is to simultaneously fill both sides of the reference object and the measured workpiece with air of the same pressure to achieve equilibrium. If the measured workpiece leaks, the equilibrium will be broken. At this time, the differential pressure sensor will convert the information and display it. Since the reference object and the measured workpiece are the same size and shape, and the pipeline is also the same, it can greatly reduce the influence of temperature and other factors on the detection system, thereby obtaining high-precision results

Features:

1. Reliable performance

The sensor has high accuracy and is not easily affected by water and oil. When designing the air circuit, consideration is given to preventing impurities such as water and oil from entering, and the influence of temperature on measurement is maximally eliminated. The air circuit components have a long service life and reliable performance, including the heating of the electromagnetic coil of the electromagnetic valve.

The system adopts a modular design, making replacement and maintenance very convenient.

This machine has a self checking function and is equipped with a calibrator

2. Small size, simple and convenient operation

3. Excellent cost-effectiveness

Function:

1. The detection conditions (such as pressure, inflation time, equilibrium time, detection time, allowable leakage rate, etc.) can be set, and can be easily archived and retrieved for use, making it convenient for testing multiple varieties.

2. The switching between internal and external control of the instrument is convenient.

3. The instrument can conveniently measure the internal volume of the measured object (which is crucial for accurate readings).

There are two ways to display the results axis; Differential pressure and leakage rate.

Instrument selection


User selection reference:

• Users only need to use the instrument separately for sealing testing, without connecting it to other control systems, and can choose a detector without input, output ports, or communication interfaces.
• It is recommended to choose a flow type for sealing tests with an internal volume greater than 5L, as small leaks are difficult to cause differential pressure changes when the internal volume is large; For the sealing test of workpieces with a volume less than 5L, flow type or differential pressure type can be selected according to process requirements.
• When there are many varieties to be tested on the production line, each variety requires different parameters (such as inflation time, balance time, and qualification judgment value). In this case, users need to choose an airtight detector with [channel] function, so that one model corresponds to a set of channel parameters.
• For workpiece detection with strict requirements for leakage indicators, it is necessary to choose a high-quality and high-precision airtight detector.
• Our company can configure corresponding fixtures and system integration according to customer needs and provided product parameters.

Application scenarios:

• Differential pressure airtightness tester
• Mainly used for sealing testing of automotive parts, gas appliance accessories, electronic components, valves, medical devices, packaging, etc.
• Flow method airtightness tester
• Mainly used in container glass and metal products with sealing requirements, automotive parts, refrigeration and air conditioning components and assemblies, sealed electronic components, aluminum castings and valves, mufflers, capillary tubes, and various pumps.
• Ultrasonic airtightness tester
• Mainly used for air leakage in compressed air systems, tank leakage, air brake leakage in cars and trains, pipeline leakage, oxygen plug leakage in hospitals, leakage in pressure and vacuum systems, partial discharge of insulators, sealing detection of doors and windows, and general gas leakage.
• Vacuum gauge type airtightness tester
• Mainly used for sealing testing of telescopes, speakers, clocks, electronic products, and other complete machines.