RD3000B grounding resistance tester
- Wrindu
- Shanghai, China
- about 25 days
- 5000 set/month
- RD3000B
The RD3000B Ground Resistance Tester offers precise measurement of ground resistance, soil resistivity, ground voltage, and AC voltage. It focuses on how to meg wires in certain site.
RD3000B Ground Resistance Tester
Features
Products advantage
Its box can withstand the pressure of about 200kg ensures high accuracy, high stability and high reliability in various environmental tests.
Special toolbox design for mainframe, using polypropylene plastic as raw material, one-time injection molding with new compound filler, low density, strength, stiffness, hardness, abrasion resistance, heat resistance and insulation performance are superior.
It has the function of low voltage shielding for reverse wiring. Under the condition of 220 kV CVT bus grounding, it can measure the dielectric loss of 110 kV reverse wiring without disconnection.
The host's large LCD display with backlight and bar graph indication is clear at a glance.
It can store 300 sets of data. Through the data software, functions such as reading, checking, saving, reporting, and printing of historical data can be realized.
Technical parameters
Parameters
Function | Ground resistance, soil resistivity test; ground voltage, AC voltage test |
Power source | DC 11.1V 2.6Ah rechargeable lithium battery |
Backlight | Controllable white screen backlight, suitable for dark places |
Measurement mode | Precision 4-wire, 3-wire measurement, simple 2-wire measurement of ground resistance |
Measurement method | Grounding resistance: rated current changing pole method, measuring current 20mA Max |
Soil resistivity: four-pole method (Winner method) | |
Voltage to ground: average rectification (between P (S) -ES interface) | |
Measuring range | Measure the ground resistance (R) with two, three and four wires: 0.000Ω ～ 200.0kΩ |
Soil resistivity (ρ): 0.00Ωm ～ 9999kΩm | |
Ground voltage: AC 0.001 ～ 600.0V | |
Maximum resolution | Two, three or four wire method for measuring ground resistance (R): 0.001Ω |
Soil resistivity (ρ): 0.01Ωm | |
Ground voltage: 0.001V | |
Precision | Two, three and four wire method for measuring grounding resistance (R): ± 2% rdg ± 5dgt (0.000Ω ～ 10.00kΩ) ± 3% rdg ± 5dgt (10.00kΩ ～ 100.0kΩ) ± 3.5% rdg ± 5dgt (100.0kΩ ～ 200.0kΩ) |
Soil resistivity (ρ): according to the measurement accuracy of R (Ρ = 2πaR a: 1 m ～ 100m; π = 3.14) | |
Ground voltage: ± 2% rdg ± 3dgt | |
Note: 1. The additional error at rC max or rP max is ≤ ± 5% rdg ± 5dgt. (rC max: 4kΩ + 100R ＜ 50kΩ, rP max: 4kΩ + 100R ＜ 50kΩ) 2. The additional error at 5V interference voltage is ≤ ± 5% rdg ± 5dgt. | |
Test voltage waveform | sine wave |
Test frequency | 412Hz / 825Hz / 1280Hz (automatic frequency selection) |
Short-circuit test current | AC 10mA max |
Open circuit test voltage | AC 75V max |
Electrode distance range | 1m～100m |
Gear shifting | Ground resistance: 0.000Ω ～ 200.0kΩ Full automatic shift |
Soil resistivity: 0.00Ωm ～ 9999kΩm Full automatic shift | |
LCD | LCD 6-digit LCD display, white screen backlight |
LCD size | 140mm×85mm |
LCD display field | 124mm×67mm |
Measurement indication | LED flashing indication during measurement, LCD countdown, progress bar graph indication |
Charging indicator | The indicator light on the charger is red when charging, and green when fully charged |
Size | Instrument size: 320mm × 275mm × 145mm |
Outer package size: 400mm × 245mm × 335mm | |
standard test leads | 4 standard test leads: 15m for red, 15m for black, 10m for yellow, 10m for green |
simple test lines | 2 simple test lines: 1.6m each for red, 1.6m each for black |
auxiliary ground rods | 4 strings: φ10mm × 150mm |
Measurement time | Voltage to ground: about 2 times / second; ground resistance: about 7 seconds / time; soil resistivity: about 7 seconds / time |
Measurement times | 5000 times or more (short-circuit test, measure once, stop for 30 seconds and then measure) |
Line voltage | AC 600V or less |
Communication interface | With USB interface, the stored data can be uploaded to a computer, saved and printed |
Communication line | 1 string USB communication line, 1.5m long |
Data hold | "HOLD" symbol indicates when data is held |
Data storage | 300 sets, "MEM" storage indication, "FULL" indicates that the storage is full |
Data review | "READ" symbol indication when reviewing data |
Overflow display | "OL" symbol indication when overrange overflow |
Interference test | Automatic recognition of interference signals, interference voltage is higher than 5V "NOISE" symbol indicates |
Alarm function | When the measured value exceeds the alarm set value, “beep--beep--beep--” alarm prompts |
Battery voltage | When the battery voltage is low, the low battery voltage symbol is displayed to remind you to charge the battery. |
Auto power off | Auto power off 15 minutes after power on |
Working current | Standby: 25mA Max (backlight off); Backlight: 25mA Max (backlight power consumption alone); Measurement: 150mA Max (backlight off) |
Quality | instrument: 2.66kg (including battery) |
Total weight: 6.88kg (including packaging) | |
Tool box | Military tool box design, can bear 200kg |
Working temperature and humidity | -10 ℃ ～ 40 ℃; below 80% rh |
Storage temperature and humidity | -20 ℃ ～ 60 ℃; below 70% rh |
Overload protection | Measurement of ground resistance: AC 280V / 3 seconds between each port of C (H) -E, P (S) -ES |
Insulation resistance | above 20MΩ (500V between circuit and case) |
Withstand voltage | AC 3700V / rms (between circuit and case) |
Protection class | IP54 |
Electromagnetic characteristics | IEC61326(EMC) |
Suitable for safety regulations | IEC61010-1 (CAT III 300V, CAT IV 150V, pollution degree 2); IEC61010-031; IEC61557-1 (ground resistance); IEC61557-5 (soil resistivity); JJG 366-2004 (ground resistance table. |
