How to use loop resistance tester

1. According to the four-wire measurement method, connect the test product to the instrument panel with a dedicated test line. Note that the voltage measurement line should be connected to the inside of the current output line.

2. Turn on the AC220V power supply (note: the third wire of the power supply line, that is, the protective ground must be connected to the earth), press the power switch, and the ammeter and resistance meter will display "000" (one digit can be allowed in the unnumbered beat).

3. Press the measurement switch, adjust the current output knob (clockwise) until the current meter head displays "100.0", then read the number on the resistance meter head to be the resistance value of the tested product, and make a record. (If it displays "1", it means the measured loop exceeds the range).

4. After the test is completed, set the current output adjustment knob (counterclockwise) to the minimum, reset the measurement switch, and then turn off the power switch.

5. To repeat the test, just reset the measurement switch, re-clamp the test clamp, and press the measurement switch again.

  Precautions for the use of loop resistance tester

1. Before turning on the power switch, the test button should be popped up (in the non-test state), and the current adjustment button should be turned counterclockwise to "zero".

2. The instrument should be placed in a dry, ventilated room without corrosive gas.

3. After the test, be sure to wait for the power supply to be discharged before removing the test line and other devices

The use of the loop resistance tester has been introduced. Through the above article, the user has a certain understanding of the loop resistance tester, which can be more convenient in the later use.