1. The circuit design of watt-hour meter and the selection of its components are based on the larger environmental tolerance, so the long-term stability of the whole machine can be guaranteed.
2.when the power is cut off, the lithium battery will be used as backup power. It can ensure that the power meter has accurate power cut and automatically put into operation after calling. A photoelectric coupling pulse output interface and an RS485 serial data communication interface are arranged at the front end of the Single Phase Power Meter for the purpose of precision test and data communication.
3.Single Phase Power Meter can be operated by PDA or PC to pre-set the data, program the time interval, correct the clock, read the meter and so on.
Zhejiang Chint Instrument & Meter Co., Ltd
Wenzhou Production Base: Wenzhou Bridge Industrial Zone, Yueqing, Zhejiang, PR.China
Headquarter: No.560, Yueming Road, Binjiang District, Hangzhou, Zhejiang, China