Ketotek Din Rail Wattmeter LCD Single-phase 110V 220 100A AC Voltmeter Voltage Current Power Factor Energy Meter Amp Monitor AC 40.0-300.0V 100A LCD display AC voltage, AC current, active power, power factor, frequence and electric energy display at the same time. The meter have a colorful, full-view, high definition LCD to display Technical Indicators 1. Accuracy: 1%2 words 2. Range: AC voltage: AC 40.0-300.0V AC Current: AC 0-100.0A, the current resolution is 0.01A. Frequence: 45.0Hz-65.0Hz Power Facter: 0.00- 1.00PF Electric Power: 0-450000W, resolution is 0.1W when 0-9999.9W, the rest is 1W. Electric Energy: 0-9999kwh, resolution is 0.01kwh when 0-999 99kwh, 0.1kwh when 1000-99999 .9kwh, 1kwh when larger than 999.9kwh 3. Speed: 2 times per second 4. Size: 54x80x64 5. Installation: Din-Rail NOTE Dear customer, if you dont understand the product, you can contact our customer service, provide your email addre, and we will send you the manual. Wire Connection Package Content 1 x din rail voltmeter ammeter, build-in CT Succefull cases from our Buyers AC 80-300V 100A &AC 250-450V 100A LED display Note: The meter can only use to measure 50Hz AC city electricity, it will be destroyed when use to measure square wave, output of inverter or correction sine wave when chose AC 250-450V, it is used in 2 wires of three phase, please don't use it in single phase. Technical Indicators 1. Accuracy :1%2 words 2. Display Mode: AC voltage and power factor use four red led of 0.31-inch AC current and electric energy of cumulative time use five red led of 0.31-inch Active power, electric energy use five green led of 0.31-inch 3. Range: AC voltage :AC 80.0-300.0V or AC 250-450V AC Current :AC 0.0-100.0AAccuracy : 0.01A Active power: 0.0-30000W or 0.0-45000W Electric energy: 0.000-99999kwh Electric energy of cumulative time: 0.00 - 999.59h Power factor: 1.000-0.000 4. Speed :2 times per second 5. Size: 54*80*64mm 6. Installation: Din-Rail Application Method 1.Connect the measuring voltage to the 1 and 2 terminal. 2.Connections of meter with internal current transformer as graph . Make the wire through the hole in the meter and the direction chose arbitrarily. 3.When power on, the meter will display the measure result of the AC voltage (V), AC current (A) and active power (W)and the correlative red led will light up. 4.When pre the button of SAM CK (on the right of meter) down, the meter will change to display the measure result of power factor (cos), electric energy of cumulative time (h) and electric energy (kwh) and the correlative red led will light up. 5.When pre the button of SAM CK down again, the meter will display the measure result of the AC voltage, AC current and active power. 6. When power off, the meter can save the value of electric energy and electric energy of cumulative time, and go on cumulating data when the meter power-on next. When the meter is displaying electric energy, you can pre down the button of SAM CK last for five seconds, then the electric energy and electric energy of cumulative time will to be zero and start to cumulate when release the button. Wire Connection Package Content 1 x AC Ammeter Voltmeter Din Rail