Earth resistance Kyoritsu 4106

Function Range Resolution Measuring range Accuracy Earth resistance Re ( Rg at Á measurement) 2© 0.001© 0.03~ 2.099© | ± 2% rdg± 0.03© 20© 0.01© 0.03~ 20.99© | ± 2% rdg± 5dgt ( * 1) 200© 0.1© 0.3~ 209.9© 2000© 1© 3~ 2099© 20k© 10© 0.03~ 20.99k© 200k© 100© 3~ 209.9k© Auxiliary earth resistance Rh, Rs 8% of Re+ Rh+ Rs Earth resistivity Á 2© 0.1© • m~ 1© • m Autoranging 0.2~ 395.6© • m Á = 2× À × a× Rg ( * 2) 20© 0.2~ 3956© • m 200© 20~ 39.56k© • m 2000© 0.2~ 395.6k© • m 20k© 2.0~ 1999k© • m 200k© Series interference voltage Ust ( A.C only) ( * 3) 50V 0.1V 0~ 50.9Vrms | ± 2% rdg± 2dgt ( 50/ 60Hz) | ± 3% rdg± 2dgt ( 40~ 500Hz) Frequency Fst Autoranging 0.1Hz 1Hz 40Hz~ 500Hz | ± 1% rdg± 2dgt Measuring method Earth resistance: Fall-of-potential method ( currents and voltages measured via the Probes) Measurement method of Earth Resistivity ( Á ) : Wenner 4-pole method Series interference voltage ( earth voltage) : RMS Rectifier ( between the E-S Terminals) Memory capacity 800 data Communication Interface Model 8212-USB Optical Adaptor LCD Dot-matrix 192× 64 monochrome Over-range Indication " OL" Overload Protection between E-S( P) and between E-H( C) terminals AC280V / 10 sec. Withstand voltage between the electrical circuit and enclosure AC3540V( 50/ 60Hz) / 5 sec. Applicable standards IEC 61010-1 CAT.III 300V, CAT.IV 150V Pollution degree 2 IEC 61010-031, IEC 61557-1, 5, IEC 61326-1 ( EMC) , IEC 60529 ( IP54) Power source DC12V : sizeAA manganese dry battery ( R6P) × 8 ( Auto power off: approx. 5 minutes) Dimensions 167( L) × 185( W) × 89( D) mm Weight approx. 900g ( including batteries) Accessories 7229A ( Earth precision measurement) , 7238A ( Simplified measurement test leads) , 8032 ( Auxiliary earth spikes [ 2 spiks/ set] ) × 2 sets ( 4 spikes in total) , 8200-04 ( Cord reel [ 4 pcs] ) × 1 set, 8212-USB ( USB adaptor with " KEW Report( Software) " ) , 9121 ( Shoulder strap) , 9125 ( Carrying case) , R6P× 8, Instruction manual, Calibration certificate