Akozon Digital Voltmeter Ammeter YB4835VA DC0~100V 20A Dual Display Integrated Voltage Ampere Meter

Specification: Voltage Measuring Range: 0~99.9V Resolution: 0.01V(<10v)/0.1v(10~100V) Ampere Measuring Range: 0-9.99-20A Resoluction: 0.01A(<10A)/0.1A(>10A) Measurement rate: ? 500mS/ times Measurement accuracy: 1% (± 1 word) Minimum supply voltage: +3.5V Maximum supply voltage: + 30V Operating temperature: -10 ~ + 65 Working humidity: 10 ~ 80% (without condensation) Working pressure: 80 ~ 106 kPa Sunlight exposure: no direct exposure Connection method: This meter is equipped with five lines, please find professionals strictly according to the following wiring diagram, if any questions, please feel free to contact customer service: Meter head power supply: two-wire socket Fine _ black line: meter head power supply Fine _ red line: power supply to watch head is positive (note, the voltage between fine red and black line cannot exceed 30V) Test end: COM: Test Common End V +: Test positive voltage input A +: Test "positive" current input end;Because the meter head adopts the common ground design, that is, the ground wire at the measuring end is connected with the ground wire at the power supply end, so it can only be connected between the negative and the negative power supply of the equipment under test, as shown in the following figure, the connection error will burn, (if only do voltmeter use, it is recommended to connect the yellow line with the black line, Prevent the digital flicker of ammeter caused by external interference) Non-shunt _ connection method: suitable for "below 20A" without external connection.