Extech Instruments 382357 Specifications download pdf (Page 4)

382357‐EU‐ENV2.42/13

Operation

Note:Ensurethatthejawsarefullyclosedbeforetesting.



Note:DONOTclampontoanyconductororopentheclampjawsduringthestart‐upself‐

calibration(self‐calisidentifiedbytheLCDcountingdownfromCAL7toCAL1).

GroundResistanceMeasurements

1. Opentheclampjawsandcheckthatallsurfacesare

cleanandfreeofdust,dirt,oranyforeign

substances.Cleanifnecessary.

2. Forcefullysnaptheclampjawsopenandclosed

severaltimes.

3. Turnthemeteronbymovingtherotaryswitchto

theohms

position.DONOTinterruptthestartup

procedurebyopeningtheclampjawsorclamping

aroundaconductor.Duringself‐calibration,the

meterwilldisplayCAL5,CAL4,CAL3,CAL2and

CAL1.

4. Oncethestart‐upcalibrationprocedureiscompleted,themeterwillsoundabeep.Clamp

ontoanelectrodeorgroundrodandreadthevalueofground resistanceonthedisplay.

Ground/LeakageCurrentMeasurement

1. Turnthemeteronbymovingtherotaryswitchtothe

mAorAposition.

2. Clampontotheelectrodeorconductor

3. Readthevalueofleakagecurrentdisplayedonthe

LCD.



HOLD

PresstheHOLDbuttontofreezethereadinginthedisplay.Hwillappearinthedisplay.Press

HOLDagaintoexitthefunction.

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Extech Instruments 382357 Specifications Page 4