KYORITSU KEW 4106 EARTH RESISTANCE & RESISTIVITY TESTER:
The KYORITSU KEW 4106 is a versatile earth resistance and resistivity tester designed for precise measurement of ground resistance and soil resistivity. This user-friendly device features multiple testing modes, including 2-pole and 4-pole measurement methods, allowing for flexible testing in various environments. With a clear digital display and intuitive controls, the KEW 4106 provides accurate and reliable results, making it ideal for professionals in electrical installation, maintenance, and soil analysis. Its compact design ensures portability, making it suitable for both fieldwork and laboratory applications.
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Key Features:
- Earth resistance measurement with six ranges covering measurements from 0.001 Ω to 200 kΩ
- Earth resistivity (ρ) measurement is automatically calculated after having set the distance between Auxiliary Earth Spikes (Wenner method)
- Automatic and Manual selection of the Test Current Frequency in four bands of 94/105/111/128Hz
In Automatic mode KEW 4106 will select the most suitable Frequency
- Advanced Filtering method (based on FFT Fast Fourier Transform) reduces noise interference for obtaining stable measurements
- 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 by using USB adapter (MODEL 8212-USB) and the special software "KEW Report"
- Robust design with IP54 protection
Specifications:
| 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 |
0.03 - 20.99kΩ |
| 200kΩ |
100Ω |
0.3 - 209.9kΩ |
Auxiliary earth resistance
Rh, Rs |
|
|
|
8% of Re+Rh+Rs |
Earth resistivity
ρ |
2Ω |
0.1Ω·mm - 1Ω·m
Auto-ranging |
0.2 - 395.6Ω·m |
ρ=2×π×a×Rg (*2) |
| 20Ω |
0.2 - 3956Ω·m |
| 200Ω |
20Ω - 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 |
Auto-ranging |
0.1Hz
1Hz |
40Hz - 499.9Hz |
±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 Adapter |
| 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 Ⅳ150V 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) |
| Dimension |
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 adapter),
8923(Fuse [0.5A/600V]) × 1 (included), 1 (spare),
9121 (Shoulder strap),
9125 (Carrying case),
R6 × 8, Instruction manual |
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