Micro-leakage Sealing Tester

Comparison of Leak Test Methods

Water Bath Testing

Comparison Item

Micro-leak Detection

10~20μm

Minimum Detectable Pore Size

Detectable below 2μm

＞30s

Test Time

Approximately 10s

Sensory test, difficult to quantify

Indication Management & Quantification

Leakage volume, leak pore size

Poor repeatability

Reproducibility

Numerical reproducibility achievable

Destructive test

Destructive/Non-destructive

Non-destructive test

Water (requires maintenance)

Test Medium

Air

Small leaks hard to detect

Human Error

Numerical management, no manual intervention

Leak point localization possible

Leak Point Identification

Cannot identify leak point

Testing Method

Method Explanation

Single Sensor Testing Technology

Single sensor typically refers to using one pressure sensor connected to the test chamber, determining test results through pressure changes detected by the sensor.

This technology has lower detection accuracy, generally detecting 5ccm (approximately 25μm leak pore). Its detection accuracy depends on the precision of the pressure sensor.

Dual Sensor Testing Technology

Generally involves using both a pressure sensor and a differential pressure sensor, employing dual-chamber comparative testing, and determining test results by monitoring pressure changes in the differential pressure sensor.

This technology offers higher detection accuracy, capable of discerning leaks below 3μ.

Multi-sensor Testing Technology

Builds on dual-sensor technology by adding force sensors or other types of sensors, improving test accuracy and precision through multi-sensor comparison, and enabling calculation of leak pore size.

Technical Parameters

Indicator

Parameter

Testing Method

Differential Pressure Vacuum, Positive Pressure Decay

Testing System

Multi-sensor Technology

Vacuum Range

0~-100kPa/0~-14.5PSI/0~-1000mbar

Testing Accuracy

Minimum 0.01CCM (approximately 1μm diameter)

Testing Unit

mbar/Pa/psi

Testing Time

5-30s

Operation Interface

7-inch LCD Touch Screen

Vacuum Resolution

1Pa/0.01mbar/0.0001psi

Data Transfer

USB/485 Communication

Data Storage

Excel Format

Management Permissions

Three-level Management Permissions

Security Key

Available

Test Parameter Storage

Over 600 sets of data (data saved)

Vacuum Source

External Electric Vacuum Pump

Test Result

Automatic Pass/Fail Judgment

Testing Standard

ASTM F2338

Housing Material

Engineering Plastic, Stainless Steel

Dimensions

320×510×320mm

Power Supply

100-240VAC Wide Voltage

Air Source Interface

φ6mm Polyurethane Tube

Sampling Frequency

50Hz

Print Configuration

Configured with Mini Printer (Dot Matrix/Thermal Optional), Can Transfer and Print A4 Reports

Instrument Weight

Approximately 18kg

Fixture Configuration

Manual Fixture, Automatic Fixture

Testing Configuration

Laboratory Offline, Sampling Testing