Multifunctional AC40-300V 100A AC Voltage and Current Meter with Color LCD Digital Display Power Monitor

The D69-2049 multifunction digital multimeter simultaneously displays AC voltage, AC current, active power, electricity quantity, and electrical energy being measured. The display features a high-definition color LCD screen with a wide 178° viewing angle. Operating Instructions and Main Technical Indicators 1. Measurement Accuracy: 1% ± 2 digits 2. Measurement Range: AC Voltage: AC40.0-300.0 V (users can select a suitable range according to their needs when ordering) AC Current: AC0-99.99 A, current display resolution is 0.01 A; when it exceeds 100 A, it will display 100.0 A 3. Active Power: 40-300 V, display range 0-30,000 W; 200-450 V, display range 0-45,000 W, display resolution between 0 and 9,999.9 W is 0.1 W, [the remainder is 1 W] 4. Power: Display Range: 0-10,000 kWh displays 9,999.99 Above 10 kWh, the display shows 00000.99 kWh; maximum display is 9999999 kWh. 5. Measurement speed: 2 times per second. 6. Dimensions: 79*43*48 mm. 7. Installation size: 76*39 mm. 8. Backup/memory function: When the power is cut off during meter use, the accumulated electricity value will be automatically saved (previous electricity data will not be lost). 9. (100A transformer hole diameter: 15.5 mm) can meet the national standard of 21 to 25 mm² (mm) standard copper wire passage. 10. The conductor wire from the transformer's secondary end can be extended by approximately 0.5 to 3.5 meters depending on the equipment's installation distance (a 0.3-meter square wire or ordinary light bulb wire can be used without additional cables). (This affects the accuracy of the measurement.) How to use and connect: 1. Connect the secondary end (green wire) of the current transformer supplied with the instrument to the blue terminal on the instrument and pass the measuring loop wire through the central round hole on the current transformer. 2. Connect the voltage measuring cable to the green terminal on the meter, then measure the voltage as described above and begin reading the measurement results. 3. Once the device is powered on, the instrument will display the measured value. 4. Press and hold the reset button on the front panel of the meter for 5 seconds to reset the meter's accumulated power value. 5. Extreme Working Conditions: Operating Temperature: -10 to +50℃ Operating Humidity: 10 to 80% (non-condensing) Working Pressure: 80 to 106 kPa Sun Exposure: No direct exposure Precautions 1. To measure mains voltage (110V AC to 220V AC), please check the voltage between 40 and 300V AC. To measure mains voltage (380V AC), please check the voltage between 200 and 450V AC. If you check AC 200-450V when placing an order, the voltage measuring instrument for the 220V network is inaccurate! Remember! 2. The wiring of the voltage input terminal (green) and the secondary input terminal of the current transformer (blue) must not be connected incorrectly, otherwise the instrument will be damaged! 3. AC200-450V is only suitable for pure 50-60Hz AC mains power and cannot be used for measurements on a square wave inverter output or a corrected sine wave circuit; otherwise, the instrument will be permanently damaged! 4. AC80-300V can be used for measurements on non-positive waveform selector circuits [such as: square wave and modified wave inverters, frequency converters, variable frequency soft-start motors, and other equipment]. 5. When installing the instrument, be careful not to press on the LCD screen! Otherwise, the code may become unreadable or distorted.