• 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.
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 | 0.03k - 20.99kΩ | ||
200kΩ | 100Ω | 0.3k - 209.9kΩ | ||
Auxiliary earth resistance Rh, Rs |
8% of Re+Rh+Rs | |||
Earth resistivity ρ |
2Ω | 0.1Ω·mm - 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) |
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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 IEC 61010-031, IEC 61557-1, 5, IEC 61326-1 (EMC), IEC 60529 (IP54) |
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Power source | DC12V : sizeAA manganese dry battery (R6) × 8 (Auto power off: approx. 5 minutes) |
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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), R6 × 8, Instruction manual, Calibration certificate |
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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.
• Dust and drip proof.(designed to IEC 529 IP54)
• In addition to the facility for precision measurement, test leads for simplified two wire easuring system also supplied as standard accessories.
(unit can be hung from the neck for simplified measurement)
• Designed to meet IEC 61010-1 safety standard.
• Capable of measuring earth voltage.
• Automatic warning when resistance of auxiliary earth spikes is in excess of tolerance.
• Small and lightweight. Shock resistant new case material.
• 2mA measuring current permits earth resistance tests without tripping earth leakage current breakers in the circuit under test.
Measurement ranges | Earth Resistance: 0 - 2000Ω Earth Voltage [50,60Hz]: 0 - 200V AC |
---|---|
Accuracy | Earth Resistance: ±2%rdg0.1Ω(20Ω) / ±2%rdg±3dgt(200/2000Ω) Earth Voltage: ±1%rdg±4dgt |
Overload protection | Earth Resistance: 280V AC for 10 seconds Earth Voltage: 300V AC for 1 minute |
Applicable standards | IEC 61010-1 CAT III 300V Pollution Degree 2, IEC 61557 IEC 60529 IP54 |
Power source | R6 (AA) (1.5V) × 6 |
Dimensions | 105(L) × 158(W) × 70(D)mm |
Weight | 550g approx. |
Included Accessories | 7095A (Earth resistance test leads) × 1set (red-20m, yellow-10m, green-5m) 8032 (Auxiliary earth spikes) × 1set 7127A (Simplified measurement probe) × 1set R6 (AA) × 6 9121 (Shoulder strap) Instruction Manual Carrying case : 9084(Carrying case[Soft]:4105A only) : 9165(Carrying case[Hard]:4105A-H only) |
Optional Accessories | 7100A (Precision measurement cord set) 8259 (Adapter for measurement terminal) |
دستگاه تعیین مقاومت الکتریکی خاک پیشرفته
به روش 4 سیم
مشخصات فنی
دستگاه کیوریتسو مدل KYORITSU 4106 جهت تست جریان بالا تا 80MA وضوح برای بهره دهی از 0.001Ω در محدوده 2Ωمورد استفاده قرار میگیرد.از دیگر ویژگی های این دستگاه:
روش های پیشرفته فیلتراسیون (بر اساس FFT تبدیل سریع) برای دستیابی اندازه گیری پایدار تداخل نویز را کاهش می دهد
به صورت خودکار و انتخاب دستی از تست فرکانس در چهار باند (۹۴/۱۰۵/۱۱۱ / ۱۲۸Hz. ) در حالت اتوماتیک، KEW 4106 مناسب ترین فرکانس را انتخاب میکند.
چندین نتایج را بر روی صفحه نمایش می تواند نشان دهد شامل: مقاومت زمین با کمک میخها، تست جریان، ولتاژ و فرکانس تداخل (نویز)، باقی مانده مقاومت RK، و غیره
هشدار برای نویز بیش از حد بالا
نمایش گرافیکی بزرگ با نور پس زمینه برای خوانش در مناطق با نور ضعیف
تا 800 نتایج اندازه گیری را می تواند در حافظه ذخیره کند و بر روی صفحه نمایش نشان دهد
نتایج ذخیره شده را می توان به یک کامپیوتر با استفاده از نرم افزار “KEW گزارش” و یک آداپتور USB (مدل ۸۲۱۲-USB) منتقل کرد.
طراحی مقاوم با حفاظت IP54.
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 | 0.03k - 20.99kΩ | ||
200kΩ | 100Ω | 0.3k - 209.9kΩ | ||
Auxiliary earth resistance Rh, Rs |
8% of Re+Rh+Rs | |||
Earth resistivity ρ |
2Ω | 0.1Ω·mm - 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. | |||
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 (R6) × 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), R6 × 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.