1) The YC1891D series can be applicable to electric power departments, electric energy meter manufacturers, measuring and quality examining departments and the mining factories or enterprises for testing the 3P3W or 3P4W static meters, mechanical meters and electric mechanical meters

2) Testing mode: active, reactive and man-made reactive

3) Starting and creeping test

4) Testing basic error, average error and standard deviation

5) Testing of meters with different meter constants within the same rack at the same time

6) Close I-P links

7) 2 operation modes: automatic and manual

8 Error data processing and rounding off, data saving and output online

9) Excellent data management and statistic function, can print all kinds of reporting forms according to users' requirement

10) Highly stable and reliable scanning head with function of testing static meters and mechanical meters

11) The swing-together function of the scanning heads improves the working efficiency

12) Simple and reliable mechanical structure

13 Has protection function of current open circuit and voltage short circuit

14) The number of the measuring positions of the test bench is from 3 to 48, and this figure can be changed according to the user's requirement