Two Wires DC Digital Voltmeter Ammeter Sensor 500A DC Voltage Current Meter DC 5-100V Amp Volt Panel Meter Volt Tester(White Cover)

AmmetersAttention: 1.Include a current 2.Please try not to install the meter and current around the high temperature, strong magnetic field and large , otherwise the accuracy will be affected. 3.In order to obtain a higher precision measurement, it is recommended to "preheat for 5 minutes" before adjusting the calibration. 4.Since the 24V battery charge full of floating voltage may be over 30V, so "no" recommended direct use it. 5.When you select range, not the larger the better. the larger the range, the larger the error, it is recommended that it is 1.5 or 2 times as large as the actual test value. 6.This meter and CT have been calibrated by the "one to one". Please don't mix it up when you use it in the later period. If mixed, you need to recalibrate it. Technical Parameters: <;30mA Test voltage:DC5-100V Test current:DC0-500A Display type:0.39'' LED with red and green fonts Measurement rate: 500mS / time Measurement accuracy:1% (± 2 digits) CT wire length:150mm Terminal wire length:150mm Dimension:70*40*30mm Mounting hole:68*38mm Features: 1. The wide power supply range, with reverse polarity protection. 2.Display voltage and current on the screen at the same time. 3.Use the SMT technology,so consistency is very good. 4.With a voltage calibration potentiometer, current calibration potentiometer, you can calibrate by yourself. The tolarance is absolutely exit. 5.CT adopts the design of perforation type wire through the hole,without having to cut wires, without damage, without changing the electric current wire can be achieved current measurements. 6.Since CT and measured wire is isolated completely, this meter can be measured the current of the power positive, negative and any devices, don't need to worry about the ammeter "common ground". 7.The positive and backward current can be measured, and the "positive" current is shown in the positive direction (the decimal point is always bright or not bright), and the "negative" current is shown in the reverse direction(the decimal point flashes slowly. 8.It can be tested two "completely isolated" devices. The voltage of A device, and the current of the B device. Or the voltage of device B, the current of A device. 9. The withstand voltage value up to 2KV between the tested conductor 10.High reliability, high resistance to current shock, no current impact damage ammeter. 11.With two wires,connection is convenient,easy connect to solar system/car/electric vehicle/motorcycle interior wires. It is used to monitor the battery voltage and can be also used for other products. Specification: Calibration Method: The relative error between the instrument and the instrument, or after long-term use, due to component aging or environmental temperature changes caused by the error can be calibrated by the following methods, in order to get more accurate measurements, it is recommended to energize and then preheat more than 5 minutes before recalibration. 1.Current calibration: In the condition of without current, use a screwdriver to adjust the "zero(or 0)" potentiometer that behind the transforme until the decimal point of the ammeter flashes fast to the best; always bright or no light shows positive current, slow flashing shows negative current In the condition of the half of actual measured current value , adjust the "amplitude modulation(or A)" potentiometer by the side of the until it is consistent with the standard meter. If the test accuracy is very high, you can repeat the above two steps to get higher accuracy. 2.Voltage calibration: In the condition of the half of actual measured voltage value, adjust the voltage calibration potentiometer of the meter with the screwdriver until it is consistent with the standard meter.

• Ammeters
• Two Wires DC Digital Voltmeter Ammeter Sensor 500A DC Voltage Current Meter DC 5-100V Amp Volt Panel Meter Volt Tester