Frequency Measurement - FLIR Extech 380926 User Manual

Diode Test

Frequency Measurement

Duty Cycle Measurements
Capacitance Measurement
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1. Set the Function switch to the diode
2. Press the FUNC key until the
3. Insert the black test lead to the COM input jack and the red test lead to the
4. Connect the test lead tips to the diode. A typical diode forward voltage drop will indicate 0.3
to 0.7V. The reverse drop will indicate "OL", indicating high impedance. Proper diode check
should include both forward and reverse tests.
RED
FORWARD TEST
1. Set the Function switch to the Hz position.
2. Press the FUNC key until the "Hz" symbol appears on the LCD.
3. Insert the black test lead to the COM input jack and the red test lead to the
Hz input jack.
4. Connect the tips of the test leads to the device to be measured (see
diagram).
5. Read the frequency value in Hz on the LCD.
Follow the steps as for Frequency measurements with the following exception: Press the "Hz/%"
key until the "%" symbol appears on the display.
1. Set the Function switch to the
2. Press the FUNC key until the "nF" symbol appears on the LCD.
3. Insert the black test lead to the COM input jack and the red test lead to the
red input terminal.
4. Connect the tips of the test leads to the device to be measured (see
diagram).
5. Read the capacitance value on the display.
NOTE: When making very low capacitance measurements, use the REL function
to zero any stray capacitance.
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position.
symbol appears on the LCD.
BLACK BLACK RED
REVERSE TEST
position.
6
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input jack.
380926 -EN-V7.1-3/12
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