Precision4-wire, 3-wire, simple 2-wire measurementmethod to measure earth resistance, soil resistivity, earth voltage.
1. Model No. : ETCR3000B
2. 2/3/4-wire method measure earth resistance,Range：0.00Ω～30.00kΩ；
3. Soil resistivity measurement, Range：0.00Ωm～9000kΩm；
4. Earth voltage measurement,Range：AC 0～600V
5. Data storage: 300 sets
6. Power Supply : DC 9V (Alkaline dry battery LR14 1.5V 6 PCS )
OverviewETCR3000B Earth Resistance Soil Resistivity Tester, adopts the precision 4-wire method, 3-wire method and simple 2-wire method to measure earth resistance, earth resistance range: 0.00Ω～30.00kΩ, soil resistivity range: 0.00Ωm～9000kΩm, earth voltage range: AC 0～600V. Import FFT (fast Fourier transform) technology, AFC (automatic frequency control) technology, with unique anti-interference ability and environmental adaptability, high repeated test consistency. ensure the measurement of high precision, high stability and reliability.
ETCR3000B Earth Resistance Soil Resistivity Tester is composed of host machine, monitoring software, test wires, auxiliary ground rod and communication cable. Host machine with large LCD display, white backlight, bar chart indication, clear at a glance. It can store 300 sets of data at the same time, through the monitoring software to relize historical access and online real-time monitoring functions, dynamic display, alarm indication, with historical data reading, accessing, saving, reporting, printing and other functions
SpecificationReference Conditions And Working Conditions
|
Influence Constant |
Base Condition |
Working Conditions |
Remark |
|
Ambient Temp |
23℃±1℃ |
-10℃-40℃ |
---- |
|
Ambient Humidity |
40%-60% |
＜80% |
---- |
|
Working Voltage |
9V±0.1V |
9V±1.5V |
--- |
|
Auxiliary Earth Resistance Value |
＜100Ω |
＜30kΩ |
rC、rP |
|
InterferenceVoltage |
Non |
＜20V |
---- |
|
InterferenceCurrent |
Non |
＜2A |
|
|
Electrode Distance of measuring R |
a＞5d |
a＞5d |
---- |
|
Electrode Distance of measuring ρ |
a＞20h |
a＞20h |
---- |
Technical Specifications
| Function | Description |
| Function | 2/3/4-pole measurement for earth resistance, soil resistivity, earth voltage |
| Power Supply | DC 9V( Alkaline dry battery R14S 1.5V 6 PCS, continuous standby for 300 hours ) |
| Measurement Range |
Earth Resistance: 0.00Ω-30.00kΩ Soil Resistivity: 0.00Ωm-9000kΩm
Earth Voltage: 0V～600V |
| Measurement Mode | Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement of earth resistance |
| Measurement Method | Earth Resistance: rated current change-pole method, test current 20mA Max |
| Soil Resistivity: 4-pole method (Wenner method) | |
| Earth Voltage: average rectification(between P(S)-ES) | |
| Test Frequency | 128Hz/111Hz/105Hz/94Hz(AFC) |
| Test Current | > 20mA (Sine wave) |
| Open-circuit Test Current | AC 40V max |
| Test Voltage Wave | Sine wave |
| Electrode Distance Range | Can be set 1m-100m |
| Shift | Earth resistance: 0.00Ω-30.00kΩ automatic shift |
| Soil Resistivity: 0.00Ωm-9000kΩm automatic shift | |
| Backlight | Controllable white screen backlight, suitable for dim places |
| Display Mode | 4-digital super-large LCD display, white screen backlight |
| Measurement Indication | During measurement, LED flash indicator, LCD count down display, progress bar indicator |
| LCD Frame Dimension | 128mm×75mm |
| LCD Display Dimension | 124mm×67mm |
| Meter Dimension | 215mm(L)×178mm(W)×83mm(H) |
| Standard Test Wire | 4PCS: red 20m, black 20m, yellow 10m, and green 10m |
| Simple Test Wire | 2PCS: red 1.6m and black 1.6m |
| Auxiliary Ground Rod | 4PCS: Φ10mm×150mm |
| Measurement Time | Earth Voltage: about 3 times/second |
| Earth resistance, soil resistivity: about 5 seconds/time | |
| Measuring Times | Over 5000 times (Short-circuit test, interval time should be at least 30 seconds) |
| Line Voltage | Below AC 600V measure |
| Communication Interface | USB interface, software monitoring, storage data can be uploaded to computer, saved or printed. |
| Communication Cable | 1PCS USB communication cable, length 1.5m |
| Data Storage | 300 groups, “MEM” symbol storage indicator, flash display “FULL” symbol indicate storage full |
| Data Hold | Data hold function: “HOLD” symbol display |
| Data Read | Data read function: “READ” symbol display |
| Overflow Display | Over range overflow function: “OL” symbol display |
| Interference Test | Recognize interference signal automatically, “NOISE” symbol display when interference voltage exceed 5V |
| Auxiliary Ground Test | With auxiliary earth resistance test function, 0.00KΩ-30KΩ(100R+rC<50kΩ, 100R+rP<50kΩ) |
| Alarm Function | Measurement value exceeds alarm setting value, will “Toot-toot-toot” alarm hint |
| Battery Voltage | While battery voltage decreases to around 7.5V, will display battery voltage low symbol“ ”, and reminding to replace the battery |
| Working Current | Standby: about 20mA (Backlight close) |
| Boot up and open backlight: about 45mA (25mA backlight close) | |
| Measurement: about 100mA (Backlight close) | |
| Weight | Tester: 950g |
| Test wires: 1560g | |
| Auxiliary ground rods: 935g (4pcs) | |
| Working Temperature & Humidity | -10℃-40℃, below 80%rh |
| Storage temperature & humidity | -20℃-60℃, below 70%rh |
| Overload Protection | Measuring earth resistance: between each interfaces of C(H)-E、P(S)-ES, AC 280V/3 seconds |
| Insulation Resistance | Over 20MΩ (between circuit and enclosure it is 500V) |
| Withstand Voltage | AC 3700V/rms (Between circuit and enclosure) |
| Electromagnetic Features | IEC61326(EMC) |
| Suitable Safety Standard | IEC61010-1 (CAT Ⅲ 300V、CAT IV 150V、Pollution 2), IEC61010-031, IEC61557-1 (Earth resistance), IEC61557-5 (Soil resistivity), JJG 366-2004 |
Intrinsic error and performance indicators under base conditions
|
Measurement Function |
Measurement Range |
Accuracy |
Resolution |
|
Earth Resistance (R) |
0.00Ω-30.00Ω |
±2%rdg±3dgt |
0.01Ω |
|
30.0Ω-300.0Ω |
±2%rdg±3dgt |
0.1Ω |
|
|
300Ω-3000Ω |
±2%rdg±3dgt |
1Ω |
|
|
3.00kΩ-30.00kΩ |
±4%rdg±3dgt |
10Ω |
|
|
Soil Resistivity (ρ)
|
0.00Ωm-99.99Ωm |
(ρ=2πaR a:1 m～100m；π=3.14) |
0.01Ωm |
|
100.0Ωm-999.9Ωm |
0.1Ωm |
||
|
1000Ωm-9999Ωm |
1Ωm |
||
|
10.00kΩm-99.99kΩm |
10Ωm |
||
|
100.0kΩm-999.9kΩm |
100Ωm |
||
|
1000kΩm-9000kΩm |
1kΩm |
||
|
Earth Voltage |
AC 0.0-600V |
±2%rdg±3dgt |
0.1V |
Relate Model| Model |
Earth Resistance （Ω） |
Selection Method Measure Resistance （Ω） |
Double Clamp Method Measure Resistance
（Ω）
|
Soil Resistivity （Ωm） |
Earth Voltage （V） |
AC Current （A） |
Data Storage （group） |
Remark |
| ETCR3000 | 0.00~2000 | None | None | None | 0~600 | None | 400 | Normal type |
| ETCR3000C | 0.00~2000 | None | None | None | 0~600 | None | 400 | Waterproof protective shell |
| ETCR3000B | 0.00~30000 | None | None | 0.00~9000k | 0~600 | None | 300 | Normal type |
| ETCR3100C | 0.00~30000 | None | None | 0.00~9000k | 0~600 | None | 300 | Waterproof protective shell |
| ETCR3200 | 0.00~30000 | 0.01~3000 | 0.01~100 | 0.00~9000k | 0.0~100.0 | 0.00mA~600A | 2000 | Normal type |
| ETCR3200C | 0.00~30000 | 0.01~3000 | 0.01~100 | 0.00~9000k | 0.0~100.0 | 0.00mA~600A | 2000 | Waterproof protective shell |
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Digital Earth Resistance Tester is applied to Precision 3-wire, simple 2-wire measurement method of earth resistance, voltage to ground measurement. With unique function of wire resistance verification, anti-interference capability and Environmental adaptability, more accurate for grounding resistance measurement. 1. Model No.: ETCR3000 2. Earth Resistance Range: 0.010Ω~2000Ω 3. Earth Voltage Range: 0V~600V AC 4. Accuracy: ±2%rdg±3dgt 5. Measurement Method:Rated current change-pole method/Average value rectification 6. Power Supply: DC 9V (Alkaline dry battery LR14 1.5V 6 PCS )
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Precision 3-wire, simple 2-wire method to measure earth resistance, earth voltage and low resistance. 1. Model No.: ETCR3000C 2. Earth resistance measurement, Range: 0.010Ω~2000Ω 3. Earth voltage measurement,Range: AC 0~600V 4. Data storage: 400 sets 5. Alarm function: audible and visual alarm 6. Power Supply : DC 7.4V 2600mAh rechargeable lithium battery, battery charge full about 8.4V
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Apply to phase sequence detection, phase testing, phase detecting and electricity testing of power high-voltage lines below 500kV. 1. Model : ETCR1050 2. Phase Detecting Voltage : AC 10V～500kV 3. Phase Detecting Distance : 200m 4. Phase Range : 0°～360° 5. Frequency Range : 45.0Hz～65.0Hz
ETCRwas established in 2006, the factory is located in Guangzhou Guangdong ,South China .It is a state-level high-tech enterprise specialized in producing non-contact
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