Aktakom AM-1108 User Manual page 19

Digital multimeter
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To test continuity, proceed as follows:
1. Set the rotary switch to
will be shown on the left part of the screen.
2. Insert the black lead into "COM" terminal, and the red lead to into the "Ω
3. Connect the leads to the two ends of the tested circuit.
4. The inner beeper sounds when the tested circuit resistance is less than 50Ω, which indicates the circuit is through.
Measuring RTD (See Figure3-9)
1. Set the rotary switch to
2. Insert the black lead into "COM" terminal, and the red lead to into the "Ω
3. Connect the leads to the tested RTD.
4. Read the measuring results from the screen.
Measuring Capacitance (See Figure3-10)
To avoid possible damage to the meter or to the equipment under test, disconnect circuit power and
discharge all high-voltage capacitors before measuring capacitance. Use the dc voltage function to
confirm that the capacitor is discharged.
The meter's capacitance ranges are 50.00nF、500.0nF、 5.000µF、50.00µF、100.0µF.
To test capacitance, proceed as follows:
1. Set the rotary switch to
2. Insert the black lead into "COM" terminal, and the red lead to into the "Ω
3. Connect the leads to the tested capacitance.
4. Read the measuring results from the screen.
OL appears on the display if the tested capacitance is open or the value surpasses the maxim range.
If the tested capacitance is polar capacitance, then connect the red lead with the positive point and the black lead
with the negative point.
High capacitance test needs more time, and 30s is necessary in 100µF position.
To improve the measurement accuracy of small value capacitors, press
the residual capacitance of the meter and leads.
The remaining voltage of capacitance, insulated impedance and dielectric absorption could cause measuring
errors.
Only Auto ranging mode is available in capacitance measurement.
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position, and press blue button ( ) twice to select continuity check and the symbol " "
See Figure3-9.RTD Measurement
position, and press blue button ( ) three times to select diodes testing.
position to select capacitance measurement.
V" terminal.
V" terminal.
Warning
V" terminal.
Caution
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with the test leads open to subtract

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