In the precision manufacturing or chemical industry, airtightness is a crucial factor in production efficiency and safety. In the era of high-quality development of intelligent manufacturing, traditional water inspection methods and mechanical dial monitoring are being replaced by digital and intelligent solutions, and intelligent differential pressure transmitter leak detection methods have become the core engine of leak detection technology.

With the continuous development of intelligent sensor technology, the field of airtightness detection is moving towards three major goals: high precision, automation, and traceability. In application scenarios such as new energy battery sealing detection, pharmaceutical sterile workshop monitoring, semiconductor cavity sealing testing, and gas self closing valve online detection systems, intelligent differential pressure transmitters redefine the safety boundary of leak detection.

Differential pressure transmitterAs a core measuring equipment in industrial process control, it has passed the field of airtightness testingHigh precision differential pressure measurement achieves precise judgment of trace leaks, becoming the core support of modern non-destructive leak detection technology.

The core of differential pressure leak detector is to judge the sealing performance by comparing the differential pressure changes between the tested sample and the standard sample (ideal leak free component). When the pipeline/When a container leaks, a pressure gradient will form on both sides of the leakage point, and the differential pressure value will significantly change with the increase of the leakage amount. Its workflow is divided into four stages: inflation, balance, detection, and exhaust. The high-precision differential pressure transmitter will measure the pressure difference between the two chambers in real time. If the pressure difference exceeds the threshold, it will be judged as a leak

Application Solution

1Micro leakage measurement: Traditional bubble observation or mechanical pressure gauge detection methods have significant bottlenecks in accuracy and efficiency. Li GeDMP305XIntelligent differential pressure transmitter is designed to meet the needs of the industry. The product adopts the second-generation monocrystalline silicon composite sensor, which compensates for small differential pressures through multi temperature and multi pressure point neural network algorithms-100pa~100paIt can also achieve precise measurement, real-time monitoring of small leakage measurements, and help users improve the efficiency of air tightness detection.

2High reliability: In the precision manufacturing industry, production lines require7x24Continuous operation for hours requires the transmitter to maintain long-term stability to avoid misjudgment caused by zero drift and range drift. The proprietary filtering algorithm of the Lige instrument intelligent differential pressure transmitter avoids sudden output fluctuations, ensures reliable operation of the product with high stability, and reduces on-site operation and maintenance frequency.

3Customized products, small size, convenient installation: For small volume differential pressure type airtight leak detectors, Lige provides customized small differential pressure transmitter products to meet the needs of small space installation.

Product Features:

Adopting the second-generation monocrystalline silicon composite sensor technology, the core is automatically packaged, temperature and pressure are fully compensated and calibrated, and each unit is provided with an inspection report upon leaving the factory;

Range: Differential pressure minimum measurable range-100~100pa

Product meetsNEPSIWaiting for the Chinese explosion-proof certificate andATEXTheIECExTheCSAWaiting for international explosion-proof certificate requirements.

Accuracy:±0.05%FS

Multiple types of shells can meet various working conditions: aluminum alloy shells316LStainless steel shell, low copper zinc shell

The product adopts modular design, dual chamber structure, and protection levelIP67Low operation and maintenance costs;

Maximum static pressure of the product:42MPa；

Ambient temperature-50℃-85℃；

excellentEMCPerformance, possessingCETheROSHauthentication;

Provide various pressure process connection specifications and electrical connection specifications to adapt to different on-site working conditions;

Standing instrumentDMP305XIntelligent differential pressure transmitters, with their high precision, intelligence, and reliability, contribute to the high-quality development of airtightness testing. Whether it's battery protection for new energy or nanoscale quality control for semiconductors, this technology is injecting stronger safety and efficiency into industrial production. In the future, intelligent pressure transmitters will continue to be deployed in the leak detector industry, moving towards a more accurate, intelligent, and safe future.