1. Use a digital multimeter that meets the requirements of field applications.
2. Use a meter with a current input fuse, and check the fuse before measuring the current.
3. Check the test leads for physical damage before measurement.
4. Use a meter to check the continuity of the test leads.
5. Only use safety handles and insulated test leads.
6. Use a watch with a concave socket.
7. Select the appropriate function and range when measuring.
8. Confirm that the operation of the table is in good condition.
9. Follow the product safety manual.
10. First disconnect the red test lead.
11. Don't work alone.
12. Use the watch with overload protection in the electric barrier.
13. When measuring the current without a current clamp, cut off the power supply of the circuit before connecting to the circuit.
14. In the case of high voltage and high current, pay attention to the use of appropriate equipment, such as high voltage probes, current clamps, etc.
