33V 10A 3A 7in1 OLED Multifunction Tester Voltage Current Time Temperature Capacity Power voltmeter Ammeter electrical meter(33V 3A White OLED)

AmmetersTechnical Parameters:Voltage measurement range: DC00.00-33.00V Current measurement range: DC0.00-9.99ATime measurement range: 0-99h59min Power measurement range: 0-99.99W-330.0WTemperature measurement range: -15 c 60c Capacity accumulation range: 00.000-99.999AhEnergy accumulation range: 0-3300.00WhVoltage measurement accuracy: (0.3% + 2digits)Current measurement accuracy: (0.8% + 3 digits) Font color: Blue WhiteProduct weight: 18.5g Product size: 48mm*29mm*22mm (L*W*H)Button Function Instruction:In the display interface, click the button to switch data set; keep pressing button to clear the accumulated data to zero.The component aging and temperature variation after long-term use may appear tiny error when it measures small current. To avoid this error, you can unplug the current wire socket and keep pressing the button to connect power supply, until the screen display "AAA", then loose button.The Wiring Diagram Instruction:Please ensure proper wiring in strict accordance with the wiring diagram.Using Isolated Power SupplyThe two power supplies must be isolated and don't connect any load. The highest voltage of isolated power supply is 20VUsing DC-DC converter to power supplyThe black thin wire connects nothing and you should use insulator wrap it to avoid short circuit. The DC-DC converter must be common cathode structure.Using system to power supplyThe black thin wire connects nothing and you should use insulator wrap it to avoid short circuit