... factor, harmonics protection ,and warning. It makes analysise and monitoring more easy.Features·12-18 step output ·Auto-intelligent ... display·Display in Chinese with background light.·Display various system parameters(V,I,F,Q,P,S…)·Display voltage and ... auto-memory, ·Error testing and monitoring function, error display function·Error analysis and PFC rectifying system RLOW-12D:16D:18D Parameters ( ...