In general, the clamp-type ammeter is a special electrical instrument for measuring AC current. The clamp-type ammeter is simple to use and is generally used for measuring the current without breaking the circuit. It is a commonly used measurement tool for electricians.
The widespread use of today's digital clamp ammeters adds many multimeter functions to the clamp meter, such as voltage, temperature, and resistance. Below we will answer how to use a clamp meter to measure voltage.
One: clamp meter measurement voltage use method 
Method for measuring AC voltage using a clamp meter
1. Insert the red test lead into the “VΩHz” jack and the black test lead into the “COM” jack.
2. Place the function range switch in the AC voltage range and connect the test leads to the tested power supply or load.
3. Read the measurement results from the display.
Method for measuring DC voltage using a clamp meter
1. Insert the red test lead into the “VΩHz” jack and the black test lead into the “COM” jack.
2. Place the function range switch in the DC voltage range and connect the test leads to the power or load to be tested. The polarity of the terminal connected to the red test pen will be displayed on the display at the same time.
3. Read the measurement results from the display.
Two: the use of the clamp meter to measure the voltage - precautions Before measuring the voltage, first select the voltage level of the clamp ammeter correctly, check whether the appearance of the insulation is good, whether there is damage, whether the pointer swings flexibly, whether the jaws are rusted, etc.
When measuring high voltage, to avoid electric shock, the maximum allowable input voltage of DC1000V.
Do not switch the range during the measurement.
Set the range switch to a position other than OFF. If the display is clear and the BATT mark does not appear, the battery is OK. If the display is not clear or the BATT logo is displayed, replace the battery with a new one.
Note that the voltage on the circuit is lower than the rated value of the clamp meter. The clamp current meter cannot be used to measure the current of the high voltage circuit. Otherwise, it may cause accidents or cause electric shock.
Three: the use of the clamp meter to measure the voltage----the symbol diagram on the clamp meter 1, VΩHz is the jack for measuring the voltage resistance, generally inserted into the red test pen
2, COM is a common test hole for each gear, generally inserted into the black pen
3. Part of the clamp meter also has a lightning symbol hole, which is the hole of the test fire line, that is, the red test pen is inserted into the hole, the black test pen is not connected to the multimeter, and the turntable road lightning symbol position is used, with red The test leads can measure the charged body.
