geo-FENNEL FMM 5 Mode D'emploi page 23

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lead to the "V/Ω/mA/oC" jack.
2)
Set the function switch to desired Ω
3)
Make sure all the power of the circuit to be measured is off.
4)
Connect the test leads to the circuit to be measured.
5)
The value indicated on the display is the measured value of
resistance.
Measuring diode
1)
Connect the black test lead to the COM jack and the red test
lead to the "V/Ω/mA/oC" jack.
2)
Set the function switch to "
3)
Make sure all the power of the circuit to be measured is off.
4)
Connect the test leads to the anode of the diode to be mea-
sured and black test lead to cathode.
5)
The forward voltage drop in mV will be displayed. If the diode
is reversed, figure "1" will be shown.
Measuring transistor hFE
1)
Set the function switch to hFE position.
2)
Determine whether the transistor is NPN or PNP type and
locate the emitter, base and collector leads. Insert the leads
into the proper holes of hFE socket on the front panel.
3)
The meter will display the approximate hFE value at the
condition of base current 10uA and Vce 2,8V.
Audible continuity test
1)
Connect the black test lead to the COM jack and the red test
lead to the "V/Ω/mA/°C" jack.
2)
Set the function switch to "·)))" position.
3)
Connect test leads to two points of circuit to be tested. If the
resistance is lower than 100 ohm, buzzer will sound.
position.
"
23
position.

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