The DC resistance tester includes microprocessor management technology, and the measurement data accuracy requirements will be further improved, in order to ensure everyone's safety in this process. Used for system testing of DC resistance of transformers, motors, transformers and other equipment. Temperature change range: working environment temperature 5 degrees Celsius to 49 degrees Celsius. It has the advantages of high accuracy, good retestability, single button operation, simple and easy use of resources, and the calibration analysis method of the DC resistance tester is mainly introduced.

The first step of DC resistance tester calibration: Open the cover and carefully cut off the wires on the board connected to the power switch. Look for the three calibration regulators on the lower right corner of the circuit board; under this environmental condition, let the meter for at least 1/2 hour, then wait for the balance, and then start the test after it is balanced.

The second step of DC resistance tester calibration: connect one end of the cable to the alligator clip, and the other end to the banana plug. Connect both ends of the resistor with alligator clips. Three calibration regulators, the upper part is the "humidity" measurement, the middle part is the "impedance", and the lower part is the "temperature adjustment with a small screwdriver". The clockwise direction is adjusted according to the added value, and the counterclockwise direction is adjusted according to the decrease.

The third step of calibration of the DC resistance tester: Press the power switch and compare the temperature, humidity and resistance values at the same time.

The DC resistance tester adopts new power supply technology, which has the characteristics of small size, light weight, large output current, wide range, digital display, mains power and internal lithium battery power supply. The whole machine is controlled by a single-chip microcomputer, which automatically completes functions such as self-inspection, data processing, and display, and has the functions of automatic discharge and discharge indication. The instrument has high test accuracy and easy operation, which can realize rapid measurement of direct resistance.