Safe Use and Precautions for Multimeters
To avoid electric shock and personal injury, when using a multimeter, please read the "Safety Information" and "Warning and Precautions" in the manual before use. The following specifications are general and general:
1. If the instrument is damaged, do not use it. Before using the instrument, check the casing and especially check the insulation next to the wiring terminals.
2. Check if there is any damaged insulation or exposed metal on the probe; Check the continuity of the probe; Before use, damaged probes should be replaced.
3. After abnormal use, do not use the instrument again as its protective circuit may fail. When in doubt, please send the instrument for repair.
4. Do not use the instrument in explosive gas, water vapor, or dusty environments.
5. Do not input the rated voltage marked on the instrument terminal (two input terminals, or any input terminal connected to the ground).
Before use, a known voltage should be measured using an instrument to confirm that the instrument is functioning properly.
When repairing instruments, please only use the components marked or provided by the manufacturer.
8. The instrument must be used according to the methods specified in this manual, otherwise the protective measures provided by the instrument may become ineffective.
9. When measuring an AC voltage with an effective value of 30V, an AC voltage with a peak value of 42V, or a DC voltage above 60V.
It should also be noted that the multimeter should be placed horizontally when used. Insert the red pen into the+hole and the black pen into the - hole. When testing the current, use the current range instead of misusing the voltage range or resistance range. Otherwise, it may cause the fuse inside the multimeter to burn, or it may cause damage to the meter head. Without knowing the range beforehand, try measuring with the maximum range and then disconnect the measuring circuit before shifting gears. Do not switch the range online. If there is a rapid deviation of the watch needle to the bottom, the circuit should be immediately disconnected for inspection. Finally, it should be noted that after using the multimeter, the range switch should be set to a higher level of AC voltage to prevent damage caused by others accidentally measuring the 220V mains voltage
