Pre the blue button to light up the bule backlight. Din Rail Meter 5(45)A230V 50HZ/60HZ LCD Display 6+1 Display 1 Specifications: Nominal voltage (Un) 220V AC Operational voltage 220V AC+-10% Insulation capabilities: - AC voltage withstand 2KV for 1 minute - Impulse voltage withstand 6KV - 1.2µS waveform Basic current (Ib) 5 A Maximum rated current (Imax) 45 A Operational current range 0.25A - 45A Over current withstand 960A for 0.01s Operational frequency range 50/60HZ Internal power consumption 1W / 10VA Test output flash rate (RED LED) 2000 impulses per kWh (0.5Wh/imp) Pulse output rate (pins 20 &21) 2000 pulses per kWh (0.5Wh/imp) Power supply indicator (Green LED) Meter is connected and working OK Consumption indicator (RED LED) Flashing at load running Data display mode 6+1 digits for LCD display Data save The data can be stored more than 20 years when power cut. 2 Performance criteria: Operating humidity 75% Storage humidity 95% Operating temperature -10C - +50C Storage temperature -30C - +70C International standard IEC 62053-21 Accuracy cla 1 Protection against penetration of dust and water IP51 3 Basic errors: 0.05Ib Cos = 1 1.5% 0.1Ib Cos = 0.5L 1.5% Cos = 0.8C 1.5% 0.1Ib - Imax Cos = 1 1.0% 0.2Ib - Imax Cos = 0.5L 1.0% Cos = 0.8C 1.0% Material Window of register PC inflammable retarding Case PA inflammable retarding Terminal block PA inflammable retarding Protection cover PA inflammable retarding 4 Dimensions 5 Installation CE EMC CE LVD RoHS