UNI-T UT161 Series, User Manual

5. Resistance Measurement (Picture 8)

1) Insert the red test lead into the             or            terminal, and black test lead 
    into the 

COM

 terminal.

2) Turn the function dial to the           or        position.
3) Touch the probes to the test points in the circuit.
4) Read the resistance value on the display.

Caution:

    Use caution when working with voltages above  AC 30Vrms, 42Vpeak or DC
    60V. Such voltages pose a shock hazard.
    If the measured resistor is open or the resistance exceeds the maximum range, 
    the LCD will display “OL”.
    Before measuring resistance, switch off the power supply of the circuit, and 
    fully discharge all capacitors.
    When measuring low resistance, the test leads will produce 0.1Ω~0.3Ω 
    measurement error. To obtain accurate measurement, short-circuit the test
   

and use the relative value measurement (REL) mode. 

 leads 

    If the resistance is not less than 0.5Ω when the test leads are short-circuited, 
    please check if the test leads are loose or abnormal.
    When measuring high resistance, it is normal to take a few seconds to stabilize 
    the reading.

6. Continuity Test (Picture 9)

1) Insert the red test lead into the            or           terminal, and black test lead 
    into the COM terminal.
2) Turn the function dial to the          or          position.
3) Short press the 

button to switch to continuity test.

SELECT 

4) Touch the probes to the test points in the circuit.
5) Measured resistance <50Ω: The circuit is in good conduction status; the 
    buzzer beeps continuously and the green indicator light is on.

Caution:

    Use caution when working with voltages above AC 30Vrms, 42Vpeak or DC 
    60V. Such voltages pose a shock hazard.
    Before testing continuity, switch off the power supply of the circuit, and fully 
    discharge all capacitors.

Picture 8

Picture 9