Multifunctional insulation resistance tester

Abstract

A multifunctional insulation resistance tester disclosed by the present invention comprises an AD conversion module and a CPU master control module, the AD conversion module is in bidirectional connection with the CPU master control module, and the AD conversion module is connected with an automatic correction module, a reference signal module, a current acquisition module, a voltage acquisition module and a battery management module. The reference signal module is connected with an automatic correction module, the battery management module is connected with a power supply module, the current acquisition module is connected with an input protection unit, the input protection unit is grounded, and the voltage acquisition module is connected with a high-voltage terminal. According to the multifunctional insulation resistance tester, a follow-up circuit is protected against invasion damage of various potentials, short-circuit discharge to the ground is achieved through high voltage, the minimum collected current can reach the nanoampere level, the collected current is converted into the resistance value which can be measured to be 10 T omega or above, control is convenient, test data can be stored, and better use prospects are brought.

Description

technical field [0001] The invention relates to the field of resistance testers, in particular to a multifunctional insulation resistance tester. Background technique [0002] The resistance tester is a supporting device for measuring the conductivity of objects. Nowadays, people pay more and more attention to the safety performance of electricity use. In terms of electricity use, the conductivity of objects needs to be tested when they are used, which is widely used. In the occasions of electrical safety inspection and grounding project completion inspection, with the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of resistance testers. [0003] There are certain disadvantages in the use of existing resistance testers. First of all, it is troublesome to measure during use, and it cannot detect and correct the status of each unit of the equipment well, which is not conducive to people's use. In addit...

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Problems solved by technology

[0003] There are certain disadvantages in the use of existing resistance testers. First of all, it is troublesome to measure during use, and it cannot detect and correct the status of each unit of the equipment well, which is not conducive to people's use. In addition, When in use, the human-computer interaction control cannot be well performed, which has brought certain adverse effects to people's use process

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