Display: HD LCD color display Dimensions: 54X80X64MM Display color: red orange yellow white green blue Protruding size: 45X16MM Installation method: rail type Measurement accuracy: 1%2 words Function test: AC voltage, current, power, frequency, electric energy, power factor Measuring speed: 2 times per second Measuring range User GuideD52-2066 guide rail type digital display multi-function meter simultaneously displays 6 parameters such as AC voltage, AC current, active power, power factor, frequency and electric energy on the instrument. The meter uses a color full-view high-definition LCD display to display the measurement results. Technical Indicators 1.Accuracy: 1%2 words 2.Measuring Range: AC voltage: AC 80.0-300.0V or AC 200.0-450.0V AC Current: AC 0-100.0A, the current resolution is 0.01A. Frequency: 45.0Hz 65.0Hz Power Factor: 0.00-1.00PF Electric Power: 0-450000W, the electric power resolution is 0.1W when measure electric power between 0-9999.9W, otherwise the electric power resolution is 1W. Electric Energy: 0-99999kwh, the display of electric energy resolution is 0.01kwh when measure electric engery between 0-999.99kwh, the display of electric energy resolution is 0.1kwh when measure electric engery between 1000.0-9999.9kwh and the display of electric energy resolution is 1kwh when measure electric engery larger than 9999.9kwh 3. Measuring speed: about 2 times per second 4. Dimensions: 54mm80mm64mm 5. Installation method: rail type Use and wiring method: 1. Connect the measured voltage to the terminals 1 and 2 on the bottom left of the meter. 2. The built-in transformer is wired according to the wiring diagram in Figure 1, and the wire of the measurement loop is passed through the circular hole under the meter. The direction of the wire penetration can be selected by the user according to the use situation, and it can be penetrated from the circular hole under the meter to the top. , Or come out from the circular hole on the top of the meter, and the different penetration directions will not affect the measurement results. 3. Connections of meter with external current transformer as graph 2. Make the wire through the hole in the meter, and connect the two wires of the secondary transformer to the 3 and 4 terminal. 4. The meter displays the measurement parameters after the power is turned on. 5. When it is necessary to reset the electric energy measurement (when measuring from zero), press and hold the button (RESET) on the right side of the instrument panel for 5 seconds (press and hold for 5 seconds) until the electric energy shows 0, release the button, At this time, the electrical energy is measured from zero. Electric energy has the function of automatically saving data after power failure, that is, when the measurement voltage is disconnected or power failure, the meter will automatically save the current test data, and when the measurement power is reconnected, the meter will continue to accumulate on the previously saved data. Attention The measuring voltage range of this instrument is 200-450V and only suitable for the pure AC 45-65Hz mains power supply, and the measuring range is 40-300V without limitation. The meter can only use for measure 45-65Hz AC city electricity.