Máy đo điện trở đất - Điện trở suất KYORITSU 4106, K4106
Thông số kỹ thuật máy đo điện trở đất:
Đo điện trở đất :
- Giải đo : 2Ω/20Ω/200Ω/2000Ω/20kΩ/200kΩ
- Độ phân giải : 0.001Ω/0.01Ω/0.1Ω/1Ω/10Ω/100Ω
- Độ chính xác : ±2%rdg±0.03Ω
Đo điện trở suất ρ :
- Giải đo : 2Ω/20Ω/200Ω/2000Ω/20kΩ/200kΩ
- Độ phân giải : 0.1Ω•m~1Ω•m
- Độ chính xác : ρ=2×π×a×R
Thẻ nhớ : 800 dữ liệu
Truyền thông : USB (Model 8112)
Màn hình LCD
Chỉ báo quá dải bằng : " OL"
Nguồn : DC12V, Pin AA (R6P) x 8
Kích thước : 167(L) × 185(W) × 89(D) mm
Khối lượng : 900g
Phụ kiện :
- Model 7229A - Dây đo (Xanh, vàng, đỏ, đen)
- Model 7238A - Đầu đo, khớp nối
- Model 8032 - 2 cọc sắt T cắm đất
- CD, Cáp USB
- Hộp đựng
- Pin R6P) x 8, Hướng dẫn sử dụng
Bảo hành : 12 tháng
Hãng sản xuất : Kyoritsu - Nhật
Xuất xứ : Nhật
- 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. 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 | 0.03~20.99kΩ | ||
| 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)") | |||
