User Manual

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7. Resistance Measurement (Picture 9)
Picture 9
UT205E/UT206B/UT207B/UT208B User Manual UT205E/UT206B/UT207B/UT208B User Manual
1) Insert the red test lead into the , or jack, and black test
lead into the COM jack.
2) Turn the function dial to the or position, short press the SELECT button
switch to resistance measurement if required, and connect the test leads to
both ends of the measured resistance in parallel.with
Note:
If the measured resistor is open or the resistance exceeds the maximum range,
the LCD will display “OL”.
Before measuring the resistance online, switch off the power supply of the
circuit, and fully discharge all capacitors to ensure accurate measurement.
When measuring low resistance, the test leads will produce 0.1Ω~0.2Ω
measurement error. Use “REL” measurement mode to get accurate readings.
Short-circuit the test leads, and then short press the REL or REL ZERO button.
After the meter automatically subtracts the resistance of the short-circuited test
leads, the low-resistance measurement can be performed.
If the resistance is not less than 0.5Ω when the test leads are short-circuited,
please check the test leads for abnormalities.
When measuring resistance above 1MΩ, it is normal to take a few seconds to
stablize reading.
Use caution when working with voltage above AC 30Vrms, 42Vpeak or DC 60V.
Those voltages may pose shock hazard.
After completing the measurement, disconnect the test leads from the circuit
under test.
1) Insert the red test lead into the , or jack, and black test
lead into the COM jack.
2) Turn the function dial to or position, short press SELECT button to
switch to continuity test, and connect the test leads with both ends of measured
load in parallel.
3) When the measured resistance ≤30Ω: The circuit is in good conduction
status; the buzzer beeps continuously. When measured resistance ≥70Ω:
there will be no buzzer sound.
Note:
Before measuring the continuity online, switch off the power supply of the
circuit, and fully discharge all capacitors.
Use caution when working with voltage above AC 30Vrms, 42Vpeak or DC 60V.
Those voltages may pose shock hazard.
After completing the measurement, disconnect the test leads from the circuit
under test.
9.Diode Test (Picture 9)
1) Insert the red test lead into the , or jack, and black test
lead into the COM jack. The polarity of the red test lead is “+” and that of the
black test lead is “-”.
2) Turn the function dial to the or position, and short press the SELECT
button to switch to diode test.
8.Continuity Test (Picture 9)