ND5800 Dual-Clamp Multifunctional Ground Resistance Tester
Contact Info
- Add:武漢市東湖開發(fā)區(qū)高新四路40號, Zip: 430074
- Contact: 蔡先生
- Tel:+8613871491300
- Email:whnort@163.com
Other Products
Product Introduction
ND5800 Dual-Clamp Multifunctional Ground Resistance Tester is a commonly used instrument for inspecting and measuring ground resistance. It features an extra-large LCD gray-white backlit display and microprocessor technology, enabling ground resistance testing via 2-wire, 3-wire, and 4-wire methods, as well as soil resistivity testing, all controlled by the microprocessor. It integrates numerous grounding test functions, allowing for quick and comprehensive measurement of various parameters in grounding networks. Widely used in telecommunications, power, meteorology, computer rooms, oil fields, power distribution lines, transmission line towers, gas stations, factory grounding networks, lightning rods, etc. The instrument is characterized by accuracy, speed, simplicity, stability, and reliability.
ND5800 Dual-Clamp Multifunctional Ground Resistance Tester consists of a host unit, monitoring software, test leads, USB cable, and grounding stakes. It offers functions such as historical data reading, reviewing, saving, reporting, and printing.
Product Features
ND5800 Dual-Clamp Multifunctional Ground Resistance Tester is microprocessor-controlled, providing precise detection of ground resistance, soil resistivity, and ground voltage. It utilizes fast filtering technology to minimize interference. The resistance values of auxiliary electrodes are displayed on the same screen, facilitating the identification of measurement errors caused by environmental factors and enabling more accurate measurement of true ground resistance. It can store 500 sets of data, supports online data monitoring via software, USB data upload to PC, and features unique functions such as data hold and intelligent protection alerts.
Technical Parameters
1. Range and Accuracy Error
Measurement Function | Measurement Range | Accuracy | Resolution |
2/3/4-Wire Ground Resistance (Re) | 0.00Ω～29.99Ω | ±2%rdg±5dgt(Note 1) | 0.01Ω |
30.0Ω～299.9Ω | ±2%rdg±3dgt | 0.1Ω | |
300Ω～2999Ω | ±2%rdg±3dgt | 1Ω | |
3.00kΩ～30.00kΩ | ±2%rdg±3dgt | 10Ω | |
DC Resistance (R—) | 0.0Ω～299.9Ω | ±2%rdg±3dgt | 0.1Ω |
300Ω～2999Ω | ±2%rdg±3dgt | 1Ω | |
3.00kΩ～30.00kΩ | ±2%rdg±3dgt | 10Ω | |
Selective Ground Resistance (Re) | 0.00Ω～29.99Ω | ±2%rdg±5dgt(Note 1) | 0.01Ω |
30.0Ω～299.9Ω | ±2%rdg±3dgt | 0.1Ω | |
300Ω～3000Ω | ±2%rdg±3dgt | 1Ω | |
Dual-Clamp Ground Resistance (Re) | 0.01Ω～0.99Ω | ±10%rdg±10dgt | 0.01Ω |
1.0Ω～9.9Ω | 0.1Ω | ||
10Ω～100Ω | 1Ω | ||
Soil Resistivity (ρ) | 0.00Ωm～99.99Ωm | ρ=2πaR (Note 2) | 0.01Ωm |
100.0Ωm～999.9Ωm | 0.1Ωm | ||
1000Ωm～9999Ωm | 1Ωm | ||
10.00kΩm～99.99kΩm | 10Ωm | ||
100.0kΩm～999.9kΩm | 100Ωm | ||
1000kΩm～9999kΩm | 1kΩm | ||
Ground Voltage | AC 0.00～100.0V | ±2%rdg±3dgt | 0.01V |
AC Current | AC 0.0mA～1000A | ±2%rdg±3dgt | 0.1mA |
Operating Conditions: Rh max＝3kΩ+100R＜50kΩ；Rs max＝3kΩ+100R＜50kΩ
Note: 1. Reference condition: Accuracy when Rh Rs<100Ω.
2. Depends on the measurement accuracy of R, π=3.14, a:1 m～100m；
2. General Specifications
Function | Ground resistance, soil resistivity, DC resistance, ground voltage, AC current, |
Ambient Temperature & Humidity | 23℃±5℃，below 75%rh |
Interference Voltage | ＜20V (should be avoided) |
Interference Current | ＜2A (should be avoided) |
Electrode Spacing for R Measurement | a＞5d |
Electrode Spacing for ρ Measurement | a＞20h |
Power Supply | DC 6V 4.5Ah Lead-Acid Battery, continuous standby over 100 hours |
Backlight | Controllable backlight, suitable for dimly lit environments |
Measurement Methods | Precision 4-wire, 3-wire method, simple 2-wire, selective method, dual-clamp method for ground resistance measurement |
Measurement Techniques | 2/3/4-wire method: Pole-changing method, max test current 20mA Soil resistivity: 4-pole method Selective method: Pole-changing method, max test current 20mA Dual-clamp method: Non-contact mutual inductance method, max test current 1mA DC resistance: Pole-changing method AC current: Average rectification (clamp type) Ground voltage: Average rectification (between S-ES interface) |
Test Voltage Waveform | Sine wave |
Test Frequency | 128Hz |
Short-Circuit Test Current | AC 20mA max |
Open-Circuit Test Voltage | AC 28V max |
Electrode Spacing Range | 1m～100m |
Display Mode | 4-digit extra-large LCD with backlight |
Measurement Indicator | LED blinking during measurement |
LCD Size | 111mm×68mm |
LCD Display Area | 108mm×65mm |
Instrument Dimensions | L×W×H: 277.2mm×227.5mm×153mm |
Clamp Dimensions | L×Thickness×H: 101mm×27mm×214mm |
Test Leads | 4 wires: red 15m, black 15m, yellow 10m, green 10m each |
Simple Test Leads | 2 wires: yellow 1.5m, green 1.5m each |
Auxiliary Grounding Rods | 4 rods: φ10mm×200mm |
Current Clamps | 2 clamps: banana plugs |
Clamp Jaw Diameter | φ50mm |
Current Clamp Leads |
| Industry Category | Chemicals/Chemical Intermediates/Intermediate Compounds |
|---|---|
| Product Category | |
| Brand: | 武漢諾頓whnort |
| Spec: | ND5800 |
| Stock: | 100 |
| Manufacturer: | |
| Origin: | China / Hubei / Wuhanshi |
