single phase active energy meter

Function and Features 1.Two-way power measure and electricity stealing proof, high accuracy, high reliability, high overload, low power consumption, light weight etc; 2.Measure three-phase active electric energy, do not need calibrate for long-term operation; 3.Three phase power supply, loss one (any one wire of three-wire) or two (any two wire of four-wire) phase, uninfected measurement; 4.Wide service temperature range; 5.Assuming output of electric energy test signal; 6.Two-line metering displays the active and reactive electric quantity; 7.LCD display active and reactive electricity, and store the data; 8.Display parameters in turn, and display when key-press; 9.It can stop displaying by broadcast 265 secretary; 10.It can display the total active and reactive electricity quantity when power off; 11.It can communicate with PC or Hand Computer through infrared or RS485 port; 12.The RS485 port electric insulates to the inside of the meter, the communication agreement accords with DL/T645-1997; 13.It has active and reactive pulse test port output function; 14.Measuring the voltage,current and active and reactive power value of A B and C phase in real time; 15.Measuring the power factor of each phase, recording the value of the latest 5 times voltage loss,current-off inception and end;