Briefly describe the testing principle of DC resistance tester-Chemical Instrument Network

DC resistance testerBy four and a half peopleLCDLCD display measurement results, three and a half digitsLCDThe LCD display environment temperature or test current value overcomes the limitations of other similar productsLEDThe disadvantage of inconvenient reading of display values under sunlight, while also having automatic arc extinguishing function, and complying with national standardsGB6587-86General Principles for Environmental Testing of Electronic Measuring InstrumentsGB6593-86The requirements of the "Quality Inspection Rules for Electronic Instruments". It is an ideal instrument for measuring the resistance of various inductive loads such as power transformers, as well as the contact resistance of low-voltage switches, wire and cable or weld interface resistance

There is a constant current source inside this instrument that can generate direct current. When measuring resistance, constant current flows fromI+I- Feed a constant current to the test object, which generates a corresponding voltage value on the test object. This voltage value isV+VRetrieve the device from the end, enlarge it, and use four and a half digits directlyLCDThe numerical display shows the resistance value of the test sample.

Characteristics of DC resistance tester:

1.Large screen LCD display, fully Chinese menu guidance for operation,Intuitive and simple.

2.Stable output10ADirect current, fast and stable testing.

3.large capacityCPUCan be stored255 Group measurement results.

4.Equipped with a panel type micro printer, it can print measurement results in Chinese.