Application Fields and Fault Repair of Loop Resistance Tester:
Application Scope of Loop Resistance Tester:
. Suitable for testing the contact resistance value of main contacts of high and low voltage switches.
. Suitable for testing the DC resistance value of high and low voltage cable lines.
. Suitable for testing the resistance value of any ultra-low resistance non-inductive electrical appliance.
The entire testing process is automatically implemented by microcomputer program control, with text prompts and a good human-machine interface, high precision, single-button operation, simple and easy to use.
Faults and Repair of Loop Resistance Tester:
The instrument has undergone high and low temperature and various aging tests before leaving the factory, so it is not prone to malfunctions. If the following situations occur, you can solve them yourself:
When the circuit is connected and the power is turned on, there is no display, the fuse is blown, replace the fuse.
After pressing the test button, the resistance value display is abnormal:
You can check according to the prompts on the display screen
A: The loop is not connected, +I, -I are not firmly connected
B: The resistance value to be tested is too large, or the contact between the clamp and the test object is poor
C: +V, -V are not connected properly, the resistance value is abnormal
If the above situations occur, you can check the loop wiring and clean the contact end of the clamp
