Kyoritsu 4106 Earth & Resistivity Tester
Kyoritsu 4106 Earth/Ground Resistance & Resistivity Tester
• High test current up to 80mA yielding resolution of 0.001© on 2© range.
• Advanced Filtering method ( based on FFT Fast Fourier Transform) reduces noise interference for obtaining stable measurements.
• Automatic and Manual selection of the Test Current Frequency in four bands ( 94/ 105/ 111/ 128Hz) . In Automatic mode, KEW 4106 will select the most suitable Frequency.
• Several sub-results can be shown on the display: Resistance of the Auxiliary Earth Spikes, Frequency of Test Current, Voltage and Frequency of Interference ( noise) , Residual Resistance Rk, etc.
• Warning for excessive noise and high Auxiliary Earth Spikes resistance.
4106 CE
• Large Graphic Display with backlight for readings in poorly illuminated areas.
• Up to 800 measurement results can be saved in the memory and recalled on the display.
• The stored results can be transferred to a PC using the " KEW Report " software and a USB adaptor ( Model 8212-USB) which are included.
• Robust design with IP54 protection.
Function
|
Range
|
Resolution
|
Measuring range
|
Accuracy
|
Earth resistance
Re
(Rg at
ρ measurement)
|
2Ω
|
0.001Ω
|
0.03
- 2.099Ω
|
±2%rdg±0.03Ω
|
20Ω
|
0.01Ω
|
0.03
- 20.99Ω
|
±2%rdg±5dgt
(*1)
|
200Ω
|
0.1Ω
|
0.3
- 209.9Ω
|
2000Ω
|
1Ω
|
3
- 2099Ω
|
20kΩ
|
10Ω
|
0.03k
- 20.99kΩ
|
200kΩ
|
100Ω
|
0.3k
- 209.9kΩ
|
Auxiliary earth resistance
Rh, Rs
|
|
|
|
8% of Re+Rh+Rs
|
Earth resistivity
ρ
|
2Ω
|
0.1Ω·mm
- 1Ω·m
Autoranging
|
0.2
- 395.6Ω·m
|
ρ=2×π×a×Rg (*2)
|
20Ω
|
0.2
- 3956Ω·m
|
200Ω
|
20
- 39.56kΩ·m
|
2000Ω
|
0.2
- 395.6kΩ·m
|
20kΩ
|
2.0
- 1999kΩ·m
|
200kΩ
|
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 (ρ): 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.
|
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 (R6) × 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),
R6 × 8, Instruction manual, Calibration certificate
|
Optional
|
8212-RS232C (RS232C adaptor with "KEW Report(Software)")
|
( * 1) Auxiliary earth resistance is 100© with Rk correction
( * 2) Depending on the measured Rg. Interval [ a] between auxiliary earth spikes is 1.0~ 30.0m
( * 3) This instrument is NOT designed to measure line voltages on commercial powers.
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