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EX35x‐en‐GB_V1.212/15

ResistanceMeasurements

Cautions:SwitchOFFpowertothedeviceundertestbeforemeasuring.Donottestoncircuits

ordeviceswhere60VDCor30VACispresent.

1. Inserttheblacktestleadbananaplugintothenegative(COM)jack.Inserttheredtest

leadbananaplugintothepositive(V/Ω)jack.

2. TurntheFunctionSwitchtotheΩposition.

3. UsetheMbuttontoselecttheΩicononthedisplayindicatingresistanceonly(without

the

audiblecontinuityiconshowing).

4. ThemeterdefaultstotheAutoRangemode(AutodisplayedonLCD).PresstheRbutton

toaccessthemanualrangemode.PresstheRbuttontostepthroughtheranges.Press

andHoldtheRbuttontoreturntotheAutoRangemode(

Autowillbedisplayed).

5. Touchthetestprobetipsacrossthecircuitorpartundertest.Itisbesttodisconnectone

sideofthepartundertestsotherestofthecircuitwillnotinterferewiththeresistance

reading.

6. Readtheresistancevalueinthedisplay.The

displaywillindicatetheproperdecimal

pointandvalue.Ifthereadingisoutofrange,theOLdisplayiconwillappear.



Fig4‐6RESISTANCE/CONTINUITYMEASUREMENTS



Extech Instruments EX355 User Manual

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