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Phone : 0983 971 891 ( 04. 22110888 ) , Fax : 04 36275938
Email : kinhdoanh4@hopphat.net . Yahoo : Kyoritsu_hp
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• | 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. |
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![4106](http://www.kew-ltd.co.jp/en/products/earth/images/4106.jpg)
![CE](http://www.kew-ltd.co.jp/en/products/images/ce.gif) |
• | 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. |
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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 | 3~209.9kΩ | Auxiliary earth resistance Rh, Rs | | | | 8% of Re+Rh+Rs | Earth resistivity ρ | 2Ω | 0.1Ω•m~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. | 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 | 7229 (Precision measurement test leads), 7238 (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)") |
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![](http://www.kew-ltd.co.jp/en/common_img/spacer.gif) | ![](http://www.kew-ltd.co.jp/en/common_img/spacer.gif) | (*1) | Auxiliary earth resistance is 100Ω with Rk correction | ![](http://www.kew-ltd.co.jp/en/common_img/spacer.gif) | (*2) | Depending on the measured Rg. Interval [a] between auxiliary earth spikes is 1.0~30.0m | ![](http://www.kew-ltd.co.jp/en/common_img/spacer.gif) | (*3) | This instrument is NOT designed to measure line voltages on commercial powers. |
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