Specifications

382357‐EU‐ENV2.42/13

Introduction

CongratulationsonyourpurchaseofExtech’s382357GroundResistanceTester.ThisClamp‐on

deviceallowstheusertomeasuregroundresistancewithouttheuseofauxiliarygroundrods.

Thisdevicecanonlybeusedonmulti‐groundedsystems.Itisnotnecessarytodisconnectthe

groundundertest.Thismeterisshippedfullytestedandcalibratedand,withproperuse,will

provideyearsofreliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthe

latestversionofthisUserGuide,ProductUpdates,andCustomerSupport.

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Safety

 Onlyqualifiedtechniciansshouldoperatethismeter.

 Useextremecautionwhenoperatingthemeternearenergizedelectricalequipment.

 Donotattempttousethismetertotwistorprythegroundelectrodeorgroundwireaway

fromgroundedequipment.

 Allmetalobjectsorwiresconnectedtothe

electricalsystemundertestshouldbeassumed

tobelethaluntiltested.Groundedsystemsarenoexception.

 Ensurethatthebatteriesareinsertedcorrectlyinthebatterycompartment.

 Removethebatteriesfromthemeterifthemeteristobestoredforlongperiods.

WARNING:Ifthemeter

isusedinamannernotspecifiedbythemanufacturer,thebuiltin

protectionsprovidedbythemetermaybeimpaired.

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InternationalSafetySymbols

Thissymbol,adjacenttoanothersymbolorterminal,indicatestheusermust

refertothemanualforfurtherinformation.

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Thissymbol,adjacenttoaterminal,indicatesthat,undernormaluse,hazardous

voltagesmaybepresent

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