ES3002E Dual Clamp Ground Resistance Tester
Multifunction Ground Resistance Tester · Dual Clamp Method · Four-Wire Method · Bluetooth APP · 5-inch Color Screen
The multifunction ground resistance tester, also known as a ground resistance tester, integrates multiple measurement methods into one advanced instrument. In addition to the traditional auxiliary ground electrode measurement function, it also features a unique non-auxiliary ground electrode measurement capability. Equipped with a color display and microprocessor technology, it performs precise 4-wire, 3-wire, simple 2-wire, selective method, and dual clamp method ground resistance measurements. The large-diameter current clamp design and dual clamp measurement technology enable online measurement without driving auxiliary ground rods or isolating the grounding body from equipment. It is widely used in telecommunications, power, meteorology, machine rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods, and more. The instrument is accurate, fast, simple, stable, and reliable.
Features
2/3/4-Wire Ground Resistance0.000Ω～200.00kΩ
DC Resistance0.000Ω～200.00kΩ
Selective Method Ground Resistance0.00Ω～3.000kΩ
Dual Clamp Method Ground Resistance0.00Ω～200Ω
Soil Resistivity0.00Ωm～9999kΩm
Ground Voltage0.000V～750.0V
DC Voltage0.000V～1000.0V
AC Current0.00mA～1000.0A
Test Waveform / FrequencySine Wave 128Hz
Detail Images
Specifications
| 2/3/4-Wire Ground Resistance | 0.000Ω～200.00kΩ Accuracy: ±1.5%rdg±70dgt Resolution: 0.001Ω |
| DC Resistance | 0.000Ω～200.00kΩ Accuracy: ±1.5%rdg±70dgt Resolution: 0.001Ω |
| Selective Method Ground Resistance | 0.00Ω～3.000kΩ Accuracy: ±2%rdg±30dgt Resolution: 0.01Ω |
| Dual Clamp Method Ground Resistance | 0.00Ω～200Ω Accuracy: ±10%rdg±10dgt Resolution: 0.01Ω |
| Soil Resistivity | 0.00Ωm～9999kΩm Accuracy: ρ=2πaR Resolution: 0.01Ωm |
| Ground Voltage | 0.000V～750.0V Accuracy: ±1.5%rdg±50dgt Resolution: 0.001V |
| DC Voltage | 0.000V～1000.0V Accuracy: ±1.5%rdg±50dgt Resolution: 0.001V |
| AC Current | 0.00mA～1000.0A Accuracy: ±2%rdg±50dgt Resolution: 0.01mA |
| Reference Condition | 23℃±5℃, below 75% rh |
| Power Supply | 11.1V lithium battery (built-in). Can continuously measure over 1000 times in AC resistance mode when fully charged. |
| Backlight | Controllable backlight, suitable for dim environments |
| Test Waveform / Frequency | Sine Wave 128Hz |
| Auto Power Off | "APO" indicator. Automatically powers off 15 minutes after startup (default). Shutdown time can be customized. |
| Measurement Method | Precision 4-wire, 3-wire measurement, simple 2-wire, selective method, dual clamp method for ground resistance measurement, average value rectification |
| Alarm Function | Alarm prompt when measured value exceeds the alarm threshold |
| Screen Size | 5 inches |
| Electrode Spacing Range | 0.1m～100.0m |
| Measurement Time | AC current: approx. 3 times/sec. Voltage to ground: approx. 3 times/sec. Ground resistance, soil resistivity: approx. 10 sec/time |
| USB Interface | Has USB interface for data reading, saving recorded data, etc. |
| Bluetooth APP | Has remote control, real-time monitoring, data reading, and other functions |
| Data Storage | 500 data sets |
| Overload Protection | Measuring ground resistance: H-E, S-ES ports AC 280V/3 seconds |
| Auxiliary Ground Rods | 4 rods: φ10mm×200mm |
| Auxiliary Ground Test | Has auxiliary ground resistance testing function, 0.00kΩ～200.00kΩ |
| Power Consumption | Screen brightness: 190mA Max (maximum brightness) 140mA Min (minimum brightness). Measurement: 200mA Max (maximum brightness) 150mA Min (minimum brightness). |
| Weight | Instrument: 1975g (with battery). Current clamps: 940g (2 pcs). Test leads: 1300g (including simple test leads). |
| Applicable Safety Standards | 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 Meters); JJG 1054-2009 (Clamp Ground Resistance Meters). |
Model Comparison
| Model | FR3010 | FR3010E | ES3000P | ES3001P | ES3002E |
|---|---|---|---|---|---|
| 2-Wire Method | 0.00Ω~3000Ω | 0.00Ω~30.00kΩ | 0.00Ω~20.00kΩ | 0.00Ω~200.00kΩ | 0.00Ω~200.00kΩ |
| 3-Wire Method | 0.00Ω~3000Ω | 0.00Ω~30.00kΩ | 0.00Ω~20.00kΩ | 0.00Ω~200.00kΩ | 0.00Ω~200.00kΩ |
| 4-Wire Method | ○ | 0.00Ω~30.00kΩ | ○ | 0.00Ω~200.00kΩ | 0.00Ω~200.00kΩ |
| Soil Resistivity Test | ○ | 0.00Ωm~9999kΩm | ○ | 0.00Ωm~9999kΩm | 0.00Ωm~9999kΩm |
| AC Voltage Test | 0.00V~600V | 0.00V~600V | 0.00V~750.0V | 0.00V~750.0V | 0.00V~750.0V |
| DC Voltage Test | ○ | ○ | 0.00V~1000V | 0.00V~1000V | 0.00V~1000V |
| Clamp Method AC Current Test | ○ | ○ | ○ | ○ | 0.0mA~1000A |
| Dual Clamp Method | ○ | ○ | ○ | ○ | 0.00Ω~100Ω |
| Selective Method | ○ | ○ | ○ | ○ | 0.00Ω~3000Ω |
| DC Resistance Test | ○ | ○ | ○ | ○ | 0.0Ω~30.00kΩ |
| Bluetooth Connection | ○ | ○ | ● | ● | ● |
| Full Auto Range | ○ | ● | ● | ● | ● |
| Auxiliary Ground Electrode Test | ○ | ○ | ● | ● | ● |
| Built-in Battery Charging | ○ | ○ | ● | ● | ● |
| Full Protection Case Design | ○ | ○ | ● | ● | ● |
| NOISE Judgment Function | ○ | ○ | ● | ● | ● |
| USB Data Upload Function | ○ | ○ | ● | ● | ● |
| FFT Anti-Interference Technology | ○ | ○ | ● | ● | ● |
| Overload Protection | ● | ● | ● | ● | ● |
| Battery Level Real-time Indicator | ○ | ○ | ● | ● | ● |
| Low Battery Indicator | ● | ● | ● | ● | ● |
| Auto Power Off | ● | ● | ● | ● | ● |
| Backlight | ● | ● | ● | ● | ● |
| Alarm Function | ● | ● | ● | ● | ● |
○ Hollow indicates not available ● Solid indicates available
Product Accessories
| Instrument | 1 unit (with built-in battery) |
| Instrument Bag | 1 pc |
| Auxiliary Ground Rods | 4 pcs |
| Current Clamps | 2 pcs (banana plug*1, audio plug*1) |
| Monitoring Software CD | 1 pc |
| USB Communication Cable | 1 pc |
| Test Leads | 4 pcs |
| Simple Test Leads | 2 pcs |
| Charger | 1 pc |
| User Manual / Warranty Card | 1 pc |