User manual

MA160‐en‐GB_V1.010/15
14
ResistanceMeasurements
CAUTION: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continuity/diode/capacitanceiconsshowing).
4. 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.
5. 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4‐5RESISTANCEMEASUREMENTS
ResistanceMeasurementNotes:
 Thedisplaywillshow“OL”whenanopencircuitisdetectedoriftheresistance>maximum
range.
 Thetestleadsintroduceanerrorofapprox.0.1Ω～0.2Ωforlowresistancemeasurements.
UsetheRelativemodetoobtainaccuratereadings.Shortthetestleadstogether,
pressthe
RELbutton,andthenmeasurealowresistance.Themetersubtractstheshort‐circuitvalue
fromthereading.
 Ifthetestleadresistanceofprobeis>0.5Ωwhenshorted,inspectthetestleadsandthe
connection.
 Itmaytakeseveralsecondsforthereadingto
stabilizewhenmeasuringresistance>1MΩ.
Thisisnormaloperation.
 Forpersonalsafety,donotmeasureacircuitwithvoltages>30VDCorAC.
