On behalf of the Zhejiang Provincial Department of Science and Technology, a new product appraisal meeting was organized by the Wenzhou Municipal Bureau of Science and Technology. Five innovative products developed by Zhengtai Instrument Company successfully passed the evaluation. These include the CCGZ27-4 paper pressure power carrier centralized meter reading system, the DTSYF666 three-phase electronic prepayment multi-rate electric energy meter, the DTSYF777 electronic prepayment multi-rate electric energy meter, the PZ77778S digital three-phase voltmeter, and the PA7777-8S digital three-phase ammeter.
Among these newly evaluated products, the CCGZ127-4 low-voltage power carrier centralized meter reading system stands out. It utilizes LONWORKS fieldbus technology from ECHELON Corporation in the United States, combined with the company's own neuron microprocessor chip PL3150 to create an intelligent distributed monitoring network. The system is composed of a concentrator, three-phase electronic multi-rate carrier energy meters, single-phase electronic multi-rate carrier energy meters, and a master station management system. Its advanced dual-wave carrier technology ensures reliable communication performance, meeting high standards of stability and efficiency. The technical specifications of this system have reached a leading domestic level, demonstrating the company’s strong R&D capabilities and commitment to innovation in smart metering solutions.
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