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Info Produk
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
Optional 8212-RS232C ( RS232C adaptor with " KEW Report( Software) " )
