DUOYI DY4100 Resistance Tester Digital Earth Tester Ground Resistance Instrument Megohmmeter 0-2000 Ohm Higher Accuracy

Description Digital earth resistance tester DY4100 is a new generation tester for electrician practice which is developed by DUOYI in recent years The circuit structure and technique of traditional earth resistance tester have been improved and the new design is both fine looking and practical This one has more complete functions higher accuracy more convenient and reliable for operation and more suitable for outdoor use with dust and wet proof structure It can test earth resistance of various earth systems including power systems electric equipments lightning conductors as well as resistance value of low resistance conductor and AC voltage test Ground resistance measurements from 0 01 to 2000 with 0 01 resolution Data hold low battery warningComplete with test leads auxiliary earth bars not include battery Specification Mode DY4100Resolution 0 01Data Hold yesWorking LED Indicator yesFunction Symbol Display yesTow Battery Warning yesEarth Voltage 0 30V 3 5 Earth Ground Resistance 0 20 200 2000 2 3 Voltage range can withstand 300V AC 1 minute Resistance range can withstand 200V AC 10 seconds Grounding Resistance Test Requirements a AC working ground the grounding resistance should not exceed 4 b safe working ground the grounding resistance should not be greater than 4 c the grounding resistance of the lightning protection ground should not exceed 100 d For jointed grounding of shielded systems the grounding resistance should not be reat