... UBC, UAC: VWater temperature of WT °C phase voltage unit: UA, UB, UC: VOil pressure unit of OP: kPa phase current IA, IB ... preheating /, start, idle speed, operation, alarm / alarm, stop output controlling function, and is the relay output;Password (password required function ... all parameters can be in the front panel settings;Power supply range (DC8 ~ 35V), can adapt to different starting battery ...