Model: AR4105A
Digital Earth Resistance Tester
Instruction Manual
AR4105A
Страница 1: ...Model AR4105A Digital Earth Resistance Tester Instruction Manual AR4105A ...
Страница 2: ...des the info about how to operate with this unit and notice about it To operate this unit to the best please read this book carefullly before use and keep it well for further reference Please make some simple test before operation to ensure the unit is in good condition ...
Страница 3: ...ications appearance and components Catalogue opeation instruction others Declaration a The battery used mustbe dealt withaccording to the local laws rulesand regulatoins b Our companyreserve the rightto upgrade andamend the specifications anddesign of theinstrument and instructions they aresubject to changewithout further notification if any ...
Страница 4: ...as or substance d High temperature and humidity over 40 90 RH or exposed directly under sunlight 4 Do not disassemble the unit or amend the inner structure Guarrantee 1 contact our afterservice department or distributor if there is any problem as below A Component damage B Abnormal display of LCD C Too big error in operation D Malfunction of keys 2 This groundmeteris of hightech and precise profes...
Страница 5: ...h ofsafety rules Warning Dangerous means thatcertain environment oroperation may lead tofetal harm Warning means that certain environmentor operation may lead to severeharm or fetaldamage of thisinstrument Note means thatcertain environment oroperation may lead to harmor damage ofthe instrument Safety signal contains three meaningsin this manual the user shallpay special attentionto the operationm...
Страница 6: ...onnectthe test pinif the operatorhas a wethand Do not applyany power supplythat is abovethe allowed limit or testrange of theinstrument Do not openthe battery doorduring operation Dangerous Warning Earthed Electrode Under Test Rx re Where earth for mains supply is used Supply Transformer Be sure to check earthed side of a commercial power supply Secondary Side Primary Side Red Green E C P In this ...
Страница 7: ...or will be displayed check the testwires are properly connected orthe pins arefrimly inserted into the soil 2 ifthe test wirehas resistance thevalue is difference between the readings andthe resistance value of wire 0 04 at level2 while theresistance value of wire can beneglected at thelevel 200 and level 20 Warning the reading maybe affected ifthe earth pinis distorted or smearedwith other substa...
Страница 8: ...rter Frequency about 820Hz measuring current about 20 about AC Max operating error in which inherent error error arising fromlocation change error arising fromvolt supplied Range Earth resistance Earth resistance Accuracy 1 Measuring rangeand error under thecondition of 23 5 and 75 RH earth voltage resolution 0 1v 0 001 0 01 0 1 5 10m 5 10m Earthed Electrode Under Test Auxiliary Earth Spikes Red w...
Страница 9: ...2 Insulation resistance 500v wire to the housing 5m 13 Resistant voltage wire to the housing 3700v ac 1 minute without jump spark When measuring the earth resistance with the unit a voltage up to 50Vis generated between terminal Eand terminal C which may shock to human For earth voltageage measuring do not apply voltagemore than 220V toavoid damage of the unit For earth resistance measuring do not...
Страница 10: ... battery with fresh one otherwise the unit cannot work properly 2 Connecting test pin Insert the pin with clip into the corresponding connector in the unit with terminal E to the green wire P to yellow and C to red or connect terminal P and C with the quick test wire for simple test loose connection will affect the measure result 2 Operation instruction Before measurement Auxiliary Earth Spike Gre...
