The Megger BVM Single Unit Battery Voltage Monitor is a battery cell/block voltage measurement system performed on battery banks. The BVM system is designed in a modular form where one BVM unit is used for each cell or block in the battery string to be tested. One BVM unit for each cell or block connects to the next in a daisy chain fashion. The included dolphin clip can easily be removed and exchanged with different styles of standard banana plug clamps and/or extension cables to accommodate any battery connection requirement.

Up to 2 x 120 BVMs can be daisy chained in a single battery bank under test that is used for the capacity testing of large, industrial battery banks commonly found in electrical power substations, telecom facilities and UPS systems generally. When used in conjunction with a load device (e.g. Megger TORKEL) and test data management software (TORKEL Viewer, PowerDB or TORKEL Win) the BVM system facilitates the execution of an automated battery bank capacity test, according to IEC and IEEE standards. The test also meet NERC/FERC requirements. The BVM-system is designed in a modular form where one BVM device is used for each battery cell or “jar” in the string to be tested. One BVM for each battery connects to the next in a “daisy-chain” fashion, thereby providing easy and economical expandability to meet the testing requirements for small-to-large battery bank systems.

Setting up the BVM system for a test is quick and easy. Each BVM unit is identical and can be connected in any battery test position, thus providing maximum flexibility and interchangeability of the BVMs. The BVM “Auto Discovery” feature enables the host device to automatically determine the number of batteries under test and provide sequential identification of each BVM unit in the test string.