FLIR EXTECH MA620 Manual page 7

Continuity Test
1. Rotate the function switch to the
2. Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack.
3. Press the MODE button to select continuity
4. Touch the black test probe tip to one side of the device.
Touch the red test probe tip to the other side of the device..
5. Touch the test probe tips across the circuit or component under test.
6. If the resistance is < 60Ω, a tone will sound.
Diode Test
1. Rotate the function switch to the
2. Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack
3. Press the MODE button to select diode test
4. Touch the test probe tips to the diode or semiconductor junction under test. Note the
meter reading.
5. Reverse the test lead polarity by reversing the red and black leads. Note this reading.
6. The diode or junction can be evaluated as follows:
If one reading displays a value (typically 0.400V to 01.800V) and the other
reading displays OL, the diode is good.
If both readings display OL the device is open.
If both readings are very small or '0', the device is shorted.
Capacitance Measurements
WARNING: To avoid electric shock, discharge the capacitor before measuring.
1. Rotate the function switch to the CAP position.
2. Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive
3. Touch the black test probe tip to one side of the device.
Touch the red test probe tip to the other side of the device.
4. Read the capacitance value in the display.
Note: For very large values of capacitance measurement time can be
several seconds before the final reading stabilizes.
www.ponpe.com
• ) position.
)
)
•
).
)
)
position.
.
jack.
7 MA620 V2.1 07/08
contact:
sale@ponpe.com