Extech Instruments EX230 Podręcznik Użytkownika Pobierz pdf (Strona 7)

EX230-EU-EN-V1.2-09/10 7

RESISTANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit under test and

discharge all capacitors before taking any resistance measurements. Remove the

batteries and unplug the line cords.

1. Rotate the function switch to the Ω position.

2. Press the MODE button to indicate Ω on the display.

3. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive Ω jack.

4. Touch the test probe tips across the device under test.

5. Read the resistance in the display.

CAPACITANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit under test and

discharge all capacitors before taking measurements. Remove the batteries and unplug

the line cords.

1. Rotate the function switch to the CAP position.

2. Press the MODE button to indicate F units the display.

3. Insert the black test lead banana plug into the negative COM jack.

Insert the red test lead banana plug into the positive CAP jack.

4. Touch the test probe tips across the device under test.

5. Read the capacitance in the display.

FREQUENCY AND DUTY CYCLE MEASUREMENTS

1. Rotate the function switch to the Hz% position.

2. Insert the black test lead banana plug into the negative COM jack.

3. Insert the red test lead banana plug into the positive Hz jack.

4. Use the MODE button to select Hz or % (Duty Cycle)

5. Touch the test probe tips across the device under test.

6. Read the frequency or duty cycle in the display.

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Extech Instruments EX230 Podręcznik Użytkownika Strona 7