EXTECH MG320 [7/12] Dielectric absorption ratio dar testing

7 MG310-en-GB_V1.0 12/15

POLARIZATIONINDEX(PI)TESTING

ReadandunderstandalloperationsandsafetyinformationcontainedintheInsulationResistance

(IR)measurementsectionaboveandtheSafetysectionbeforecontinuing.

1. Connectthemetertothedeviceundertestasshowninthetestsectionabove.

2. Selectthedesiredoutputtestvoltageusingtherotaryfunctionswitch(250/500/1000V).

3. UsethePI/DARbuttontoaccessthePItestmode.

4. ThedisplaywillshowthePIiconwhenthePImodeissuccessfullyaccessed.

5. Thetwotesttimes(Time1andTime2)willalternatelyshowontheupperright.

6. Thefirsttestwillrunfor1

minute(Time1)whentheTESTbuttonispressed.Ifthetestfails

(noisdisplayed)thesecondtestwillnotautomaticallyrunandtestingisnowcomplete.If

thetestpasses(YESisdisplayed)theTime2testwillrunfor10minutes.

7. Thetestresultwilldisplayafterthe

10‐minuteTime2interval

8. PresstheTESTbuttontostopthetestandtobegindischargingthedeviceundertest.



DIELECTRICABSORPTIONRATIO(DAR)TESTING

ReadandunderstandalloperationsandsafetyinformationintheInsulationResistance(IR)

measurementsectionaboveandintheSafetysectionbeforecontinuing.

1. ConnectthemetertothedeviceundertestasshownintheIRtestsectionabove.

2. Selectthedesiredoutputtestvoltageusingtherotaryfunctionswitch(250/500/1000V).

3. UsethePI/DARbuttontoaccesstheDARtestmode.

4. ThedisplaywillshowtheDARiconwhentheDARmodeissuccessfullyaccessed.

5. Thefirsttwotesttimes(Time1andTime2)willalternatelyshowontheupperright.

6. Thefirsttestwillrun

for30seconds(Time1)whentheTESTbuttonispressed.Ifthetest

fails(noisdisplayed)thesecondtestwillnotautomaticallyrunandtestingisnowcomplete.

Ifthetestpasses(YESisdisplayed)theTime2testwillrunfor1minute.Thetestresultwill

displayafterthe1‐minuteTime2interval

7. ToaccessthesecondsetofTime1andTime2testspresstheDARbuttonthreetimesand

repeatthesamestepsaboveinthissection.Forthe2

setofteststhetimesare15

seconds(Time1)and1minute(Time2).

8. WhencompletedpresstheTESTbuttontostopthetestandtobegindischarging