▲ Leak tester - Left: LS-R902EV, Right: AL-R302EV

Utilizing Cosmo Instruments' air leak testing technology and knowledge developed over the past 50 years, Cosmo Wave has developed the air leak tester "EV Series" to meet the growing demand for EV production worldwide. Introducing the excellent features of the "LS-R902EV" and "AL-R302EV" air leak testers.

▶ Vol. 1: Details of air leak tester "EV series"　

Features of air leak tester "EV Series" Actual volumetric flow rate display and easy connection port

In Vol. 1, we introduced the newly developed CISVAS filter and the ambient temperature compensation function. Here are three more functions.

3. Test pressure fluctuation correction *AL-R302EV

The test pressure fluctuation correction function eliminates measurement errors caused by test pressure fluctuations. If a product under test leaks, the pressure inside the product will be lower than the specified level. As the pressure drops, so does the leakage. As a result, defect products will be judged as acceptable. Even if the pressure fluctuates from the specified value, this function allows correct compensation of the leakage amount. In addition, even if the pressure inside the product drops rapidly, it will be judged as defect immediately.
⇒More accurate measurements

▲The green line shows the pressure values before and after using the test pressure fluctuation correction function. The blue line indicates a sudden drop in product pressure. (Defect judgment)

4. Actual volumetric flow rate display

The Two EV Series leak testers display actual volumetric flow rate in any test environment. The leakage results can also be displayed in converted flow rates such as mL/min (20°C), or in pressure units such as Pa.
⇒All test conditions around the world are supported, and units can be selected to suit the test conditions

5. Equipped with ports for connection to industrial networks

To facilitate connection to industrial networks, Ethernet/IP and PROFINET can be selected in addition to standard I/O ports. ※Scheduled for June 2023
⇒Reduces complex wiring of devices

▲ Connectable to industrial networks

Other features include a bypass circuit that utilizes a large amount of air pressure to reduce the time required to build pressure up to a given value. The LS-R902EV can also be used to perform leak test for cooling systems.

Reducing false judgments and realizing highly accurate leak tests

The air leak tester "EV Series" was developed to reduce false detections in leak test and to be more practical in the automotive industry. This enables accurate leak test of products with high-capacity and low test-voltage, such as EV batteries. Cosmowave will continue to develop better products that are useful for manufacturing sites.

If you are considering implementing an EV exclusive leak tester or leak test or interested in other Cosmo Instruments products in Thailand, please contact us using the form below.