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Communication Feature | September 2014

The BITE 3- Megger India

The Megger BITE 3 Battery Impedance Test Equipment determines the health of lead-acid cells up to 2000 Ah by taking measurements of the most important battery parameters. The BITE 3 measures cell impedance, an internal ohmic test, cell voltage, and intercell connection resistance. And, for the first time in a battery instrument, the BITE 3 measures float current and ripple current. There is even a built-in spectrum analyzer to show the harmonic content of the ripple current. It has firmware that can be upgraded through the Internet and supports multiple languages. The BITE 3 is one of the easiest instruments to use. It works by measuring the internal impedance of cells, the intercell connection resistance, cell voltage, float and ripple current. These along with temperature, specific gravity and other battery data, can provide the best basis for evaluating the overall health of batteries from terminal plate to terminal plate and to a lesser extent, even the charger (from ripple current and its harmonic content.) Megger recommends that the BITE 3 be made part of a comprehensive battery maintenance program with reading taken and recorded semi-annually for flooded, lead-acid cells and quarterly for VRLA.

Unlike load-cycle testing which is expensive, non-predictive and time-consuming (but does provide actual capacity data), the BITE 3 is quick, reliable and easy to use. With a rapid test time, one person can easily, quickly and precisely measure cell and string parameters without taking the system off line. Furthermore, in as little as four keystrokes, the instrument is ready to take battery measurements (five, if the power button is included). The processor of the BITE 3 uses a Windows« CE Operating System and can store more than 4000 sets of data in more than 1000 tests. It is menu-driven that is easy to navigate. Its unique data analysis screens provide immediate feedback on the status of cell impedance. The first part of the report is the numerical data. The second part is the impedance deviation graph and the third part is the impedance deviation graph but in ascending impedance order. This groups the weakest cells together for easier analysis. With the optional printer, this report can be printed by the user and left at the site as a record for future reference.

The first of its kind, ProActiv is a powerful software package that organises and analyses battery data in an MS Access database. Used in conjunction with the BITE 3, ProActiv manages the transferred test data from the BITE 3 by organising it according to your needs and providing it in an extremely useful manner. Once the database is configured to your liking and test data are transferred from the BITE 3, it provides red, yellow and green bands that coincide with user entered pass, warning and failure limits. ProActiv allows the user to organise and manage battery data such as voltages, impedance, intercell connection resistance, ripple current, and specific gravity.

For more queries please write us on india.sales@megger.com or call us on 022 26740468.

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