Air leak tester ‘EV Series,’ EV exclusive air leak tester is now on sale in Thailand! Vol.1

11/01/2023

COSMOWAVE TECHNOLOGY CO., LTD.

In recent years, EVs (electric vehicles) are attracting the attention of car users around the world. In Thailand as well, the number of EV users is on the rise as more EV charging stations are installed at gas stations and shopping malls.

Utilizing the air leak test technology and knowledge that Cosmo Instruments has developed over more than 50 years, the company has developed a new air leak tester, the “EV series,” in response to the increase in EV production. Introducing the excellent features of the new leak testers "LS-R902EV" and "AL-R302EV".

Ideal for leak test of high-capacity and low-voltage EV batteries

The big difference between gasoline-powered vehicles and EVs is the size of the batteries used. Leak testers that are compatible with them must be applied. We foresaw this change and developed the new air leak testers "LS-R902EV" and "AL-R302EV".

COSMOWAVE Technology Air leak tester LS-R902EV AL-R302EV

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

■ Features of the air leak tester “LS-R902EV”
✔ Leakage unit mL/min, pressure unit Pa, etc. can be selected according to test conditions.
✔ Equipped with ambient temperature compensation function
✔ Supports leak test of battery cooling system

■ Features of Air Leak Tester "AL-R302EV"
✔ Equipped with newly developed flow sensor and air circuit
✔ Equipped with test pressure fluctuation correction function and ambient temperature compensation function

Features of air leak tester "EV Series" New function improves judgment accuracy

Various new functions for EV battery measurement have been developed for more accurate pass/fail judgment and detection.

1. Newly developed CISVAS filter

The CISVAS filter can remove noise caused by sudden deformation of the battery case. The filter uses a unique method to monitor the movement behavior of the leakage volume of the battery case and identifies abnormal changes. Identifying such abnormal changes increases the reliability of the leak test.
⇒Reduce judgment errors due to product deformation

▲ Differential pressure that the CISVAS filter can detect

2. Equipped with ambient temperature compensation function

The characteristics of the battery case make it susceptible to changes in room temperature during tests, and the ambient temperature compensation function reduces false readings due to temperature changes caused by these effects.

These two EV series models measure the room temperature during the tests and perform appropriate compensation based on the temperature difference due to the diurnal variation of the room temperature.
⇒Significantly reduces false detections of leak amount

In addition to the above two functions, they also have other excellent features as a leak tester. For details, please see Vol.2

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.

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