3
high-temperatureandmoisture,orcondensation,and under
direct daylight radiation for along time.
uForreplacing battery,please confirmtestingwirehas moved
apart the meter,and FUNCTIONSWITCHrotaryswitch isin
“OFF”position.
uPlease put the used batteries inappointed collectionplace.
uWhenreplacingthe batterywiththe meter,make surethatthe
testlinehas been removed fromthe meterand the meteris
turned off.
uWhenthemeterdisplaysbatterylowvoltage symbol“”，
and need toreplace the batteryintime.
uPayattentiontomeasuring range and usageenvironment
stipulated for the Tester.
uThismeasuring deviceisonlytobe used,disassembled,
adjusted and repairedbyqualified personnelwithauthorization.
uWhenitmaycause hazardbycontinuoususe forthe reason
ofthe Testeritself,itshallimmediatelystop usingitand depositit
at once, leaving it for disposalbyauthorized agency.
uForriskofdangericon inmanual ,usersmustperform
safetyoperationsstrictlyincompliance withthemanualcontent.
II.Introduction
Ground Resistance Soil ResistivityTesteralsoknown
as Four-WireGroundTester,PrecisionGround Resistance
Tester,etc., isacommonlyused meterformeasuring grounding
resistance.It adoptsalarge LCDgray-whitescreen backlight
displayandmicroprocessortechnologytomeettherequirements
oftwo-wire,three-wireand four-wiretestresistance andsoil
resistivitytest. Suitablefortelecommunications,electricity,
