AC80‑300V 100A DIN Rail Power Meter Digital Display Voltage Current Time Power KWh Multifunctional Voltmeter Item Type: DIN Rail Power Meter Mode: SDM004 Material: PC Measurement Accuracy: 1% ± 2 words Display: Voltage display 4 digit red 0.31 inch LED Nixie tube; The current and time cumulative display adopts 5 digits, and the red 0.31 inch LED Nixie tube has active power; Electric energy (electric degree) display adopts 5 bit, green 0.31 inch LED Nixie tube AC Voltage: AC80-300V AC Current: AC0-100A (the current display resolution is 0.01A when the measured current is less than 100A, 0.1A when the measured current is greater than 100A, and the range automatically switches) Active Power: 0.0 to 30000W (measured voltage AC80.0-300.0V), 0.0-45000W (AC200.0-450.0V) Electric Energy: 0.000 to 999999kwh Time Accumulation: 0.00 to 999.59h Power Factor: 1.000 to 0.000 Measurement Speed: Approximately 2 times per second Installation Method: Track type Working Temperature: -10 to +60 ℃ Working Humidity: 10 to 80% (without condensation) Working pressure: 80 to 106kPa Sunshine Exposure: No direct exposure 1. Connect the measured voltage to the 1 and 2 wiring terminals at the bottom left of the instrument. 2. The built in transformer is wired according to the wiring diagram in Figure 1, and the wires of the measurement circuit are threaded through the circular hole below the instrument. The direction of the wire penetration can be selected by the user according to the usage situation. The direction of penetration can be either from the circular hole below the instrument to the top or from the circular hole above the instrument to the bottom. Different directions of penetration will not affect the measurement results. 3. After turning on the power, the measurement display functions displayed on the instrument are voltage (V), current (A), and active power (W). The red LED indicator on the right side of the corresponding display window lights up to indicate the corresponding display function. 4. Press the button (SAM CK) on the right side of the dashboard to convert the three displayed functions into power factor, Time accumulation (h), electrical energy (kWh), the green LED indicator light on the right side of the corresponding display window lights up, indicating the corresponding display function. 5. Press the button (SAM CK) again, and the display function of the instrument will be converted back to voltage (V), current (A), and active power (W) 6. When it is necessary to reset the electrical energy measurement and timing (when measuring from 0), switch the measurement function to the electrical energy measurement function, and the green indicator light on the right side of the instrument display will light up. At this time, press and hold the button (SAM CK) for 5 seconds (hold for 5 seconds) until both the electrical energy and timing display are displayed as 0. Release the button, and both the electrical energy and timing display will start measuring from 0. Both the electric energy and timing displays have the function of automatically saving data during power outages. That is, when the measurement voltage is disconnected or powered off, the instrument will automatically save the current test data. When the measurement power is reconnected, the instrument will continue to accumulate the previously saved data.