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LEAK-M
LEAK-M
LEAK-M
LEAK-M

LEAK-M

Micro Leak Tester

LEAK-M Micro Leak Tester is designed based on the vacuum decay method and conforms to the requirements of ASTM F2338-09. It is applicable to test the sealing integrity for different volume injection and lyophilized pharmaceuticals such as vials, ampoule bottles, infusion bottles, prefilled syringes, eye drops bottles, liquid filled packaging, non-porous flexible packages, rigid and semi-rigid packaging. It is also suitable for the detection of minimum leakage points and pinholes in blister packaging, semi-rigid or rigid packaging such as glass vials.

Product Features

Professional design

 

10.1" colorful touch screen with intelligent data processing function

 

Industry-leading 1-3 micron sensitivity detection

 

Using the principle of vacuum and differential pressure dual sensor method, can detect pressure and time changes

 

Using trace pressure sensor to detect small pressure changes

 

Imported pneumatic components and pressure sensors with stable and reliable performance

 

Multi-level vacuum degree can be preset for gradient test

 

Automatic design, the instrument determine the end of the test and whether it is qualified

 

Multiple test units kPa, psi, mbar, mmHg, which can be switched easily

 

Vacuum degree, test and infiltration time can be setup and stored in the database to ensure the consistency of test conditions

 

Test curve real-time display, data intelligent statistics, easy to quickly view the test results

 

Historical test data can be viewed and printed

 

Micro printer and USB data interface, convenient for data output and transmission

 

With powerful data storage function, which can up to 50,000 test records

 

The system has functions such as GMP user management, authority management, and data audit tracking.

 

Features

 

Complies with the requirements of USP, ASTM, YY/T standards and can distinguish between large leaks, medium leaks and small leaks.

 

The host software adopts an encrypted database system, which can perform data storage, query, printing, and other functions.

 

Equipped with a four-level user security password policy to ensure the security of test data.

 

The software data integrity complies with the requirements of 21CFR PART 11, and has complete audit tracking, authority management and electronic signature functions; the data cannot be changed and is easy to back up. It is 100% compliant and meets the requirements of FDA/USP1207/ASTM/YY/T.

 

Security protection

 

The test chamber adopts liquid anti-leakage design to effectively ensure the safety of the sensor.

 

Intelligent configurations such as overload protection and power-off memory effectively ensure the user's operation safety.

 

Over-range shutdown function to effectively protect the sensor.

 

LEAK-M
 

Test Principle

 

The host is connected to a vacuum decay chamber, the sample is put into it and vacuumed, there is a pressure difference between the inside and outside of the sample, and the gas enters the vacuum decay chamber and the host through the leak hole. The host uses a pressure sensor and a differential pressure sensor to monitor the vacuum degree change in the test chamber, judging whether the sample is qualified by the change of vacuum degree.

Reference Standard

  • ASTM F2338
  • USP1207
  • YY/T0681.18-2018

Product Parameter

Specifications

LEAK-M

Absolute Vacuum Degree

10Pa (0.1mbar)

Sensitivity

1~3μm pore size

Authority management

4 level

Opening Method

Pneumatic

Gas Supply Pressure

0.7 MPa

Port Size

Φ6 mm PU Tubing

Display Mode

10.1"colorful touch screen

Instrument Dimension

450mm(L)×390mm(W)×410mm(H)

Power Supply

AC 220V 50Hz / AC 120V 60HZ

Net Weight

26Kg

 

Comparison of common leak test methods:

 

 

Negative pressure method

Positive pressure method

Vacuum attenuation method

Method

Put the sample into water and vacuumizing, observing the leakage situation by whether there are steady progression of bubbles from the specimen or whether the Methylene blue water enters the sample after vacuum reduction

Punch a hole on the object to be measured, flush gas into it, and put it into water. Observe whether there is a dew point by observing whether there are bubbles emerging during the pressure maintaining process.

Put the sample into the vacuum chamber, and observe the coincidence of the pressure curves of the sample and the standard sample after vacuumizing, so as to judge whether there is leakage or not

Advantage

1. The results is visible 2. Widely used 3. High industry acceptance

low cost High industry acceptance

1. convenient and fast 2. traceability 3. Repeatable 4.Nondestructive testing 5. Small human factors 6.High sensitivity 7.Quantitative test 8. Easier to detect smaller leakage point and Irregular leak

Shortcoming

1.Destructive testing 2.Subjective factors, easy to misjudge 3.Low sensitivity and difficult to judge micropores

1.Destructive testing 2.Long test time 3.Unable to determine the micropores leakage

High cost

Summary

The vacuum method is a commonly used method to test the leakage. According to research, although water molecules can pass through when encountering a 5um leak, but it is different to observe when encountering a 5um micropore infiltration of liquid during testing, which makes misjudgment. And the sample can’t be used again after leak testing.

Each sample for destructive test can only be used for preliminary research, not suitable for product delivery inspection.

Although the vacuum decay leak tester is expensive, it is currently a more effective, intuitive and efficient leak detection method. Besides, the sample will not be contaminated after inspection and can be used normally.

 

Applications

 

Basic Application

Flexible, non-porous packages including bags and pouches containing solids

Basic Application

Sealed cups or trays containing solids

Basic Application

Non-lidded, empty cups or trays

Basic Application

Rigid, non-porous containers including:

Basic Application

Plastic screw capped bottles containing solids or liquids

Basic Application

Glass or plastic vials containing liquids or solids

Basic Application

Glass or plastic ampoules containing liquids

Basic Application

Glass pre-filled syringes containing liquids or solids

Basic Application

Ophthalmic dropper tip bottles containing liquids

Basic Application

Blow Fill Seal bottle or strip containing liquid

 

Configuration

 

Standard Configuration:Instrument, 10.1 inch Touch Screen, Vacuum chamber, Vacuum Pump, Micro Printer, Data export system

 

Optional Configuration:Adjustable flowmeter

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