How to use a multimeter that needs to measure 24V voltage
① Regarding the above questions, for example, if the 24V voltage you are measuring is AC, then if you use a pointer multimeter, turn the range switch of the meter to the AC 50V voltage position, (for example, MF500, or MF47 wait). Then, insert the red and black test leads into the red and black test lead holes respectively. At this time, connect the two test leads to the two ends of the 24V voltage.
②. Regarding the above question, for example, if the 24V voltage you want to measure is [DC voltage], then when you use the pointer multimeter, first turn the range switch of the multimeter to [DC voltage range] such as MF500 and MF47 meters At this time, insert the red and black test leads into the socket holes of the red and black test leads respectively, and then connect the red test lead to the positive terminal of 24V voltage and the black test lead to the negative terminal of 24V voltage to measure .
③. If the above 24V voltage is an AC voltage, if you use a digital multimeter to measure it, first turn the range switch of the digital multimeter to the 200V range of the AC voltage range, and then insert the red and black test leads into the red and black on the panel respectively. On the test lead socket, at this time, put the two test leads on the two ends of the AC 24V voltage to measure.
④. If it is a DC 24V voltage, then you should set the range switch of the digital multimeter to the [DC voltage range] first. At this time, insert the red and black test leads into the red and black test lead socket holes on the panel, and then, the red test lead Put it on the positive end of the 24V voltage, and put the black test lead on the negative end of the 24V voltage to measure it.
How does a digital multimeter measure AC voltage
DC voltage measurement
1. Insert the black test lead into the COM jack, and the red test lead into the V/Ω jack.
2. Set the function switch to the DC voltage range V-range, and connect the test lead to the power supply to be tested (to measure the open circuit voltage) or the load (to measure the load voltage drop), and the polarity of the terminal connected to the red test lead will be displayed on the on the monitor.
Note: 1. If you do not know the voltage range to be measured, set the function switch to the maximum range and gradually decrease. 2. If the display only shows "1", it means over-range, and the function switch should be set to a higher range.
3. Indicates not to measure voltages higher than 1000V, it is possible to display higher voltage values, but there is a danger of damaging the internal circuit.
4. When measuring high voltage, pay special attention to avoid electric shock.
AC voltage measurement
1. Insert the black test lead into the COM jack, and the red test lead into the V/Ω jack. 2. Set the function switch to the AC voltage range V~ range, and connect the test pen to the power supply or load to be tested. The test connection diagram is the same as above. When measuring AC voltage, there is no polarity display. Note: 1. Refer to DC voltage Note 1.2.4. 2. "" means do not input a voltage higher than 700Vrms, it is possible to display a higher voltage value, but there is a danger of damaging the internal circuit.
