I. Model Selection
1.Category code: D--electric meter
2. Group code indicates phase line: D--single phase; S--three phase three line; T--three phase four line. Indicate the classification of use: D--multi-function; S--electronic; X--reactive power; Y--prepayment; F--multi-rate.
3. The design serial number is represented by Arabic numerals, and the design serial number of each manufacturing plant is different. For example, the serial number of the electric meter products designed and produced by Zhejiang Huaxia Instrument Co., Ltd. is 633, and that of Zhengtai Instrument Co. is 666.
Second, to summarize the above points:
DDSY--Indicates single-phase electronic prepaid electricity meter,
DTSY--Indicates three-phase four-electronic prepayment meter,
DTSF--Indicates three-phase four-wire electronic multi-rate electricity meter,
DSSF--Indicates three-phase three-wire electronic multi-rate electricity meter,
DSSD--Indicates three-phase three-wire multi-function watt-hour meter,
DTSD--Indicates three-phase four-wire multi-function energy meter,
DTS--Indicates three-phase four-wire electronic active watt-hour meter,
DSS--Indicates three-phase three-wire electronic active watt-hour meter,
DS--represents three-phase three-wire mechanical active watt-hour meter,
DT--Indicates three-phase four-wire mechanical active watt-hour meter,
DX--mechanical reactive power meter,
DTSX--Indicates three-phase four-wire electronic reactive power meter,
DSSX--Indicates three-phase three-wire electronic reactive watt-hour meter,
DTS (X)-Indicates three-phase four-wire electronic active and reactive combined electricity meter,
DSS (X)-Indicates three-phase three-wire electronic active and reactive combined electricity meter,
DSM--Indicates three-phase three-wire mechanical pulse watt-hour meter,
DTM--Indicates three-phase four-wire mechanical pulse watt-hour meter,
DXM--represents three-phase mechanical reactive watt-hour meter,
DTF--Indicates three-phase four-wire mechanical multi-rate electricity meter,
DSF--Indicates three-phase three-wire mechanical multi-rate electricity meter,
DXF--Indicates three-phase mechanical reactive multi-rate electricity meter,
DDS-- stands for single-phase electronic watt-hour meter,
DD-- stands for single-phase mechanical watt-hour meter.