EXTECH EX381676A [9/13] Continuity check

381676A-en-GB_V1.1 08/15

RESISTANCEMEASUREMENTS

WARNING:Toavoidelectricshock,disconnectpowertotheunitundertestanddischargeall

capacitorsbeforetakinganyresistancemeasurements.

NOTES:

‘OL’indicatesanover‐rangeconditioninmanualmode.Ahigherrangeshouldthenbeselected.

Iftheresistancemeasuredisgreaterthan1M



,themetermaytakeafewsecondstoobtaina

stablereading.Thisisnormalforhighresistancemeasurements.

Whentheleadsarenotconnectedorwhenmeasuringanopencircuit,thedisplaywillread‘OL’.



1. UsetheprobecoverifmakingmeasurementsoncategoryIIIorabove

installations

2. Setthefunctionswitchtothe position.

3. UsetheMode(M)buttontoselectthe

resistancemode().

4. Inserttheblacktestleadbananaplugintothe

negativejackatthebottomofthemeter.

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fromthecircuitsothe

restofthecircuitwillnotinterferewiththe

resistancereading.

6. Readtheresistanceonthedisplay.Themeter

automaticallyselectstheoptimumrangeortheusermaymanually

selectarangeby

pressingtheRange(R)button.PressandholdtheRange(R)buttontoreturntotheAUTO

Rangemode.

CONTINUITYCHECK

WARNING:Riskofelectricshock.Ensurethatallpowertothecircuitisoffandcapacitorshave

fullydischargedbeforemeasuringcontinuity.

NOTE:Iftheresistancemeasuredisgreaterthan200,thetestleadsarenotconnected,orwhen

measuringanopencircuit,thedisplaywillread‘OL’.



1. UsetheprobecoverifmakingmeasurementsoncategoryIIIoraboveinstallations

2. Setthefunctionswitchtothe position.

UsetheMode(M)buttontoselecttheaudiblecontinuitymode.

4. Inserttheblacktestleadbananaplugintothenegativejackatthebottomofthemeter.

5. Touchthetestprobetipstothecircuitorwireu ndertest.

6. Iftheresistanceislessthanapproximately50

,theaudibletonewillsound.