Hỗ trợ trực tuyến

Hỗ trợ trực tuyến

An Toàn, PCCC
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Điện - Viễn Thông
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Đối tác
 Earth Resistance & Resistivity Tester 4106
Earth Resistance & Resistivity Tester 4106
  • 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.
Giá: vui lòng liên hệ
  • Thông tin chi tiết
    • 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
    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)")
    (*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.