Earth Tester
KYORITSU 4106
- $2,420.00
Earth Resistance & Resistivity Tester
- High test current up to 80mA yielding resolution of 0.001Ω on 2Ω 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.
- 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..
This product is temporarily out of stock. You may opt-in our waiting list and we'll notify you once the product is restocked.
Models: 4106 Digital Earth Resistance & Resistivity Tester
Kyoritsu 4106
Included 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
| Function | Range | Resolution | Measuring range | Accuracy |
| Earth resistance | 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 | 8% of Re+Rh+Rs | |||
| Earth resistivity | 2Ω | 0.1Ω·mm - 1Ω·m | 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 | 50V | 0.1V | 0 - 50.9Vrms | ±2%rdg±2dgt (50/60Hz) |
| ±3%rdg±2dgt (40 - 500Hz) | ||||
| Frequency | Auto ranging | 0.1Hz | 40Hz - 500Hz | ±1%rdg±2dgt |
| Measuring method | Earth resistance: Fall-of-potential method | |||
| 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 | |||
| Power source | DC12V : sizeAA manganese dry battery (R6) × 8 | |||
| Dimensions | 167(L) × 185(W) × 89(D) mm | |||
| Weight | approx. 900g (including batteries) | |||
| Accessories | 7229A (Earth precision measurement), | |||
| Optional | 8212-RS232C (RS232C adaptor with "KEW Report (Software)") | |||
(*1) Auxiliary earth resistance is 100Ω 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.