The benefits of implementing the RMUs, along with an upgrade of CP systems, are the cost avoidance of traveling to remote sites to check each rectifier and test station, and the added capability of instant notification of a malfunction in the CP system. If SGADA systems are already available where the RMUs are to be installed, then the CP monitoring systems should be interfaced to the SCADA system. If the SCADA system is not readily available, either cell phone-based systems, satellite downlinked data systems, wireless modems, or drive-by systems should be implemented. The choice of whether to use the "long-distance" wireless technologies or drive-by systems depends largely on the installation cost, monthly fees, and reliability of the signals at those particular locations. By implementing the most practical remote monitoring technology, based on a comparison of which is best for one's given situation, the life of the tank, water distribution, or gas system is expected to be extended by 30 years, while reducing the work load of maintenance personnel at the same time.
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