What is the safe operating procedure of the loop resistance tester?

The operation of the loop resistance tester requires a series of steps, including understanding and use, correct wiring, power-on, test menus, etc., fortunately, the test results are displayed. In these process steps, you must pay attention to safety. I will give you the details today. Introduce what is the safe operating procedure of the loop resistance tester.

1. Before using the loop resistance tester, check whether the input and output lines are intact. After confirming, plug in the power cord. At this time, the power indicator lights up, indicating that the power line is connected. If there is an abnormal phenomenon, check the cause and deal with it.

2. Check whether the range of the voltmeter is appropriate and whether the voltage regulator is above the zero position. When selecting the range, choose according to the actual situation. When measuring the resistance of the whole machine and measuring isolation, electric poles and grounding, etc. When the resistance is different, their required ranges are different.

3. When connecting the output line to the test product, pay attention to placing the current line outside the voltage line. When the button is pressed, the indicator light turns on.

4. Adjust the voltage regulator so that the current evenly rises to the corresponding current value. Observe the change of the pointer. If there is any deviation, it must be modulated at any time to ensure the accuracy of the detection. After the detection is completed, the Make test records for future review.

When using the loop resistance tester, you must be proficient in the operation method and take safety precautions. If the resistance tested by the sample is found to be abnormal, the loop resistance tester must be calibrated first, or renewed Perform a test to see if the data differs greatly. If it is not normal, repair it.