Air leakage tester SAIMR3115B

Multi Channel Air Leakage Tester is an advanced type of Air Leakage Tester designed to measure and evaluate the airtightness of products or components. It detects pressure changes after air is applied to a test piece to determine whether any leakage occurs.

As an upgraded and more efficient version of a traditional Air Leakage Tester, the Multi Channel Air Leakage Tester allows multiple channels—such as single, dual, or four—to operate simultaneously or sequentially, greatly improving testing efficiency and throughput.

The SAIMR3115B Multi Channel Air Leakage Tester manufactured by SAIMR is a representative model in this category. Equipped with high-precision differential pressure sensors and multiple communication interfaces, it ensures accurate, stable, and automated leak detection.

Commonly used in automotive, electronics, home appliance, and medical device industries, it helps guarantee consistent sealing quality and product reliability.

Working Principle

The SAIMR3115B operates based on the differential pressure method:

1. Pressurization – Air is introduced into the test specimen at a controlled pressure.

2. Stabilization – Pressure is held steady for a short period to allow temperature and airflow to stabilize.

3. Measurement – The instrument measures the pressure difference between the test specimen and a reference chamber (or atmosphere).

4. Leak detection –

   • If the specimen is airtight, the pressure remains stable.

   • If leakage exists, air escapes, causing a measurable pressure drop, recorded as leak rate (Pa/s or Pa/min).

5. Result evaluation – The system compares the measured leak rate with preset limits and automatically determines whether the product passes or fails.

Application Area

SAIMR3115B is a differential pressure-type leak tester designed to inspect various components. It enhances leak detection capability and enables automation of inspection stations.

Equipped with a high-sensitivity differential pressure sensor and thermally stable pneumatic valves, the instrument automatically checks valve operation and sensor sensitivity during each test.

Its core circuit integrates a self-diagnostic function that ensures both performance and safety. By utilizing standard reference error correction or error reduction functions, it improves testing accuracy, reduces test time, and adapts to a wide range of test specimens. The device provides precise readings of test pressure, differential pressure, and leakage rate.

• Automotive components – Detects air or fluid leakage in parts such as valves, fuel systems, and lighting assemblies, ensuring product safety and compliance with sealing standards.

• Electronic devices – Tests the airtightness of casings, connectors, and sensors to prevent moisture or dust intrusion, improving durability and reliability.

• Home appliances – Checks sealing performance in products like compressors, pumps, and control modules to maintain efficiency and prevent leakage-related failures.

• Medical equipment – Ensures the integrity of components such as catheters, fluid chambers, and housings, safeguarding product quality and patient safety.

• Industrial machinery – Monitors air and fluid system tightness in pneumatic or hydraulic devices, enhancing operational stability and reducing maintenance costs.

Key Features of Multi Channel Air Leakage Tester

1. Multi-channel testing

   • Supports single, dual, or four-channel testing, allowing simultaneous or sequential inspection of multiple products, improving production efficiency.

2. High-precision differential pressure sensor

   • Detects very small pressure changes, ensuring accurate and reliable leak measurement.

3. Automatic self-check

   • Automatically verifies valve operation and sensor sensitivity before each test to maintain stable operation.

4. Self-diagnostic and error correction

   • Core circuit with self-diagnostic function and standard reference error correction enhances measurement accuracy.

5. Fast and repeatable testing

   • Thermally stable pneumatic valves and optimized control system reduce test time while ensuring repeatable results.

6. Wide pressure range

   • Supports both positive and negative pressure testing, suitable for various products and sealing requirements.

7. Data communication & automation integration

   • Equipped with RS232, LAN, USB, and I/O interfaces, enabling seamless connection with PLC, MES, or automated production lines.

8. Durable and compact design

   • Robust structure and thermally stable valves make it suitable for long-term industrial use.

9. Backed by an innovative supplier

   • Developed and manufactured by Suzhou Saimr a high-tech company specializing in testing instruments, emphasizing innovation, quality management, and technological collaboration.

Instrument Advantages

This leak tester combines a high-sensitivity, low-volume differential pressure sensor with a streamlined yet fully functional air circuit, offering reliable and precise leak detection.

• Specialized Pneumatic Valves – High airflow capacity with minimal heat generation for stable and efficient testing.

• Built-in Self-Cleaning – Prevents failures caused by contaminants such as water, oil, or metal debris.

• Real-Time Pressure Display – Shows test pressure with configurable upper and lower limits.

• Leak Rate Configuration – Supports Pa/min or Pa/s units, with adjustable alarm thresholds.

• Dynamic Curve Plotting – Displays real-time test pressure and differential pressure curves during measurement.

• Automatic Leakage Calculation – Calculates leak rate after each test and provides OK/NG judgment.

• Instant Abnormal Leak Detection – Stops the test immediately if an abnormal leak is detected.

• Safety Protection – Halts testing if pressure exceeds preset limits and displays NG on the screen.

• Differential Pressure Limit – Stops operation and shows NG when differential pressure exceeds 2200 Pa.

• Connectivity & Automation – RS232, LAN, and external I/O ports for expanded control and integration.

• Data Management – Automated storage with USB export and historical query by date.

Technical Parameter