Some common usage methods of digital clamp meter are as follows:
1. AC current measurement
①Turn the switch to ACA1000A.
②Keep the switch in a relaxed state.
③Press the trigger to open the jaws and clamp one wire. If more than two wires are clamped, the measurement is invalid.
④Read the value. If the reading is less than 200A, turn the switch to ACA200A to improve the accuracy. If it is not possible to read directly in a dark place due to environmental conditions, press the hold key and read it in a bright place.
2. AC and DC voltage measurement
①When measuring DC voltage, turn the switch to ACA200A, and when measuring AC voltage, turn the switch to ACV750V.
②Keep the switch in a relaxed state.
③Connect the red test lead to the "V/Ω" terminal, and the black test lead to the "COM" terminal.
④ Connect the red and black test leads in parallel to the circuit under test.
3. Resistance measurement
①Turn the switch to the appropriate range of electrical blocking.
②Keep the switch in a relaxed state.
③The red test lead is connected to the "V/Ω" terminal, and the black test rod is connected to the "COM" terminal.
④The red and black test leads are respectively connected to the two ends of the resistance under test. When measuring the online resistance, the line should be disconnected from the source, and the one connected to the resistance should be discharged.
4. On-off test
①Turn the switch to 200n.
②The red and black test pens are respectively connected to the "V/Ω terminal COM" terminal.
③If the resistance between the red and black test leads is less than (50±25)Ω, the built-in buzzer will sound.
1- Clamp head 2- Clamp head trigger 3- Hold switch 4- Rotary switch 5- Display 6- Insulation test accessory interface 7- Common ground terminal 8- Voltage resistance input terminal 9- Hand strap.
5. High resistance measurement
①Turn the switch to "EXTERNALUNlT" 20MΩ or 2000MΩ.
②The displayed value is unstable and in a free state.
③ Insert the 3 plugs of the test accessories into the 3 input jacks of the clamp meter.
④The switch of the clamp meter and the range switch of the test accessories are placed in the 2000MΩ position.
⑤ The input terminal of the test accessory is connected to the resistance under test;
⑥ Put the test accessory in the "ON" position, press the "PUSH" button, the indicator light will be on, and the display will show the measured value. If the reading is less than l9MΩ, the range of the clamp meter test accessories should be set to 20MΩ to improve the accuracy Spend.
