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Fast, Sensitive & Non-destructive Leak Detectors of Gas Flushed Product

Checks the pack integrity of gas flushed products. Helps assure the stated shelf life will be achieved.

Fast & highly accurate. Reliable and repeatedly capable of detecting very small leaks, down to 50 microns (µm). Cost effective, non-destructive test that reduces the product and packaging waste created in other methods. Eliminates the biological hazard of having a water bath in the production area.

These are 4th generation leak detectors from Dansensor to use CO2 as a trace gas. Through continuing research and development, Dansensor has further optimised the test method, reduced the test time, improved sensitivity, lowered the sensitivity to atmospheric CO2 and can now calculate the size of the hole causing the leak.

Dansensor® LeakPointer 3 Small chamber, ideal for single pack testing, when using the PackBase insert. Immediate calculation of hole size when testing single packs. Multiple pack testing results are expressed in ppm CO2 / sec. Integral Delta-Pressure meter, essential for setting the correct test vacuum for each pack type. Integrated Venturi vacuum pump.
Dansensor® LeakPointer 3+ Large chamber, suitable for multiple package tests, or testing a large single pack. Leak size is expressed in ppm CO2 / sec. Integral Delta-Pressure meter, essential for setting the correct test vacuum for each pack type. Integrated vacuum pump within the body of the unit.

The Cause of Leaks Dansensor’s investigative work has shown that the majority of leaks are caused by very small holes. Almost two thirds are less than 200 micron. Any effective leak detection method must be sufficiently rigorous, sensitive and of long enough duration, to be able to find those very small holes.

Having even a small leak in a gas flushed pack will cause the headspace to return to atmosphere (20.9% oxygen) within a few days. The larger the hole, the faster the decay of the modified atmosphere. Starting with a headspace of 0.1% O2 and by using a series of certified holes, Dansensor measured the time taken for a pack’s atmosphere to return to 20.9% O2. Even a pack with a very small 50 micron hole had a headspace of 10% O2 after 3 days – showing it is essential to detect very small holes to ensure shelf life.

Test Method Test packs must contain at least 10% CO2. The test pack(s) is placed in the test chamber and the lid closed. This automatically activates the vacuum pump to evaluate the test chamber and create a difference in pressure between the inside of the pack and the test chamber. It is this difference that forces gas out of the pack and into the chamber. A sensitive CO2 sensor detects any increase in CO2 levels within the chamber & registers a leak. When using the LeakPointer 3 version, the size of the hole causing the leak will then automatically be calculated and displayed. The test results are automatically stored to the internal memory and can be exported via LAN or USB ports.

Sensor Type NDIR CO2 sensor, single beam
CO2 content in package Down to 10%
Ambient temperature Operational: +5 to +35 °C. Storage: -20 to +60 °C
Ambient relative humidity Operational: 10 to 90%RH, non condensing. Storage: <95%RH, non condensing.
Ambient CO2 level Max 4500 ppm, recommended <1500 ppm
Leak size measurements Down to 50 micron
Number of products / test programs 100
Data collection capacity Test data from more than 1,000,000 tests
Connections 2x USB, 1x LAN RJ45, air pressure 6mm diam hose (LeakPointer 3 only)
Compliance CE
Dansensor LeakPointer 3 Dansensor LeakPointer 3+
Flexible and rigid packages. Individual packages Flexible and rigid packages. Multiple packages
With Dansensor PackFix: W1=325, W2=295 H1=40, H2=86mm Without Dansensor PackFix: W1=325, W2=268 H1=40, H2=110mm W1=465, W2=363 H1=40, H2=155
100-264 VAC, 50/60 Hz 115 VAC, 60Hz / 230 VAC, 50 Hz
Lid open: 543 x 400 x 617 mm (HxWxD) Lid open: 751 x 555 x 812mm (HxWxD)
Air supply 5.5 ± 0.5 bar (Venturi vacuum system) Air suppluy: Vacuum pump integrated
Chamber vacuum: down to 750 mbar delta pressure Chamber vacuum: down to 800 mbar delta pressure

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