Item Type: Electricity Meter_x000D_ Material: ABS_x000D_ Model: D52-2066_x000D_ Usage: Used in chemical industry, power plants, automation equipment, DOS systems, electromechanical equipment, etc._x000D_ Basic Parameter:_x000D_ Main Specifications:_x000D_ 1. Measurement Accuracy: 1% 2 words_x000D_ 2. Measuring Range: _x000D_ AC Voltage: AC 250-450V_x000D_ AC Current: AC 0-100.0A, the current display resolution is 0.01A_x000D_ Power Frequency: 45.0Hz-65.0Hz_x000D_ Power Factor: 0.00-1.00PF_x000D_ Active Power: 0-45000W, the display resolution between 0-9999.9W is 0.1W, the rest is 1W_x000D_ Electric Energy: 0-99999kwh, the minimum display resolution between 0-999.99kwh is 0.01kwh, between 1000.0-9999.9kwh is 0.1kwh, between 10000-99999kwh is 1kwh_x000D_ 3. Measurement Speed: About 2 times per second_x000D_ 4. Installation Method: Rail type_x000D_ _x000D_ _x000D_ How to Use:_x000D_ 1. Connect the measured voltage to the 1 and 2 terminals on the lower left of the meter._x000D_ 2. Built in transformer wiring according to the wiring diagram in Figure 1: Pass the wire of the measurement loop through the round hole at the bottom of the instrument, user can choose the direction of the wire according to the situation, it can pass through the round hole at the bottom and come out from the top, or pass through on the top and come out from the bottom, different directions will not affect the measurement results._x000D_ 3. External transformer wiring according to the wiring diagram in Figure 2: Connect the 2 wires of the secondary end of the transformer to the terminals 3 and 4 on the upper left of the instrument respectively, and pass the wires of the measurement loop through the round hole of the transformer._x000D_ 4. After the power is turned on, the instrument displays the measurement parameters._x000D_ 5. When it is necessary to reset the electric energy measurement, press and hold the RESET button on the right side of the instrument panel for 5 seconds, until the electric energy is displayed as 0, release the button, and the electric energy will be measured from 0._x000D_ 6. The electric energy has the function of automatically saving the data when the power is cut off, when the measuring voltage is disconnected or the power is cut off, the meter will automatically save the current test data, and when the measuring power is reconnected, the meter will continue to accumulate the previously saved data._x000D_ 7. The diameter of the built in transformer (CT) round hole is approx.11mm/0.4in, which can pass through the national standard 12mm2 standard copper wire, can meet the load current 100A through_x000D_ 8. The diameter of the external transformer (CT) hole is approx.15mm/0.6in, which can meet the national standard of 21-25mm2 standard copper wire.