Brand and model: Changsha Weisheng DTZ341 State Grid 0.5s level three-phase four wire intelligent household electricity meter

Wiring system: three-phase four wire system

Current specification: 3 × 1.5 (6) A

Frequency: 50Hz

Multiple rates: 8 rates

Communication protocol: DL/T645-2007 protocol

Meter attribute: Three phase four wire intelligent energy meter

Accuracy level: Active power 0.2S level; Reactive power level 2

Voltage specifications: 3 × 57.7/100V, 220/380V

Product dimensions: length x width x thickness: 265mm x 170mm x 75mm

Communication interface: 2 RS485 interfaces; Far infrared communication interface

Active pulse constant 20000 imp

Reference frequency 50Hz

Voltage working range ± 20% Un

Clock error ≤ 0.5/s/d

Clock frequency 1Hz

Mean time between failures ≥ 6 × 104h

Power consumption ≤ 2W, 6VA

Environmental temperature (-25~+60) ℃

Extreme temperature (-40~+70) ℃

Product design lifespan>10 years

Backup battery life ≥ 3 years

Pulse width of electric quantity (80 ± 5) ms

Electric pulse voltage DC (5-24) V

The net weight of a single machine is about 2.4kg