- Phone
-
Address
Jiangyang South Road, Zhabei District, Shanghai
Shanghai Shengxu Electric Co., Ltd
Jiangyang South Road, Zhabei District, Shanghai
1、 Overview:
ES3010E Grounding Resistance MeterThe grounding resistance soil resistivity tester, also known as the four wire grounding resistance tester or soil resistivity tester, is a commonly used instrument for testing and measuring grounding resistance. It adopts a large LCD gray white screen backlight display and microprocessor technology, and is controlled by a microprocessor for 2-wire, 3-wire, and 4-wire grounding resistance testing and soil resistivity testing.
ES3010E Grounding Resistance MeterIt gathers many grounding testing functions, which can quickly and comprehensively measure various parameters in the grounding network. It is a new generation of grounding measuring instrument that replaces traditional shaking table measurement. Widely used in telecommunications, power, meteorology, computer rooms, oil fields, power distribution lines, iron tower transmission lines, gas stations, factory grounding grids, lightning rods, etc. Instruments have the characteristics of precise, fast, simple, stable and reliable testing.
Controlled by a microprocessor, it can accurately detect grounding resistance, soil resistivity, and grounding voltage. It uses fast filtering technology to minimize interference. Simultaneously store 500 sets of data.
2、 Technical specifications:
1. Range and accuracy errors
measurement function |
measurement range |
precision |
resolution |
Grounding resistance (R) |
0.00Ω to 30.00Ω |
±2%rdg±5dgt (注1) |
0.01Ω |
30.0Ω to 300.0Ω |
±2%rdg±3dgt |
0.1Ω |
|
300Ω to 3000Ω |
±2%rdg±3dgt |
1Ω |
|
3.00kΩ~30.00kΩ |
±2%rdg±3dgt |
10Ω |
|
Soil resistivity (ρ) |
0.00Ωm~99.99Ωm |
ρ=2 π aR (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 0.00~600V |
±2%rdg±3dgt |
0.01V |
Note: 1 Reference condition: Accuracy when Rh Rs<100 Ω.
Working conditions: Rh max=3k Ω+100R < 50k Ω; Rs max=3k Ω+100R < 50k Ω
2. It depends on the measurement accuracy of R, π=3.14, a: 1m~100m;
2. General specifications
Function |
Measure grounding resistance and soil resistivity using two, three, and four wires; Ground voltage measurement |
Environmental temperature and humidity |
23 ℃± 5 ℃, below 75% RH |
Power supply |
6 1.5V (LR14) alkaline batteries |
Interference voltage |
<20V (should be avoided) |
Interference current |
<2A (should be avoided) |
Electrode spacing during R measurement |
a>5d |
Electrode spacing when measuring ρ |
a>20h |
Auxiliary grounding resistance value |
Reference condition<100 Ω, working condition<5k Ω |
Range |
Grounding resistance: 0.00 Ω~30.00k Ω |
Soil resistivity: 0.00 Ω m~9999k Ω m | |
Grounding voltage: 0.00V~600V | |
measurement method |
Precision 4-wire, 3-wire method measurement, simple 2-wire measurement of grounding resistance |
measurement method |
Grounding resistance: rated current pole changing method Soil resistivity: Quadrupole method Grounding voltage: average rectification (between S-ES interfaces) |
test frequency |
128Hz |
Short circuit test current |
AC>20mA (sine wave) |
Open circuit test voltage |
AC 28V max |
Test voltage waveform |
sine wave |
Range of electrode spacing |
Can be set from 1m to 100m |
Shift gears |
Grounding resistance: 0.00 Ω~30.00k Ω Fully automatic shifting |
Soil resistivity: 0.00 Ω m~9999k Ω m Fully automatic shifting | |
Backlight |
Controllable gray white backlight, suitable for use in dark fields |
display mode |
4-digit ultra large LCD display with gray white backlight |
Measurement indication |
LED flashing during measurement |
LCD display domain |
108mm×65mm |
Instrument size |
240mm (length) × 188mm (width) × 85mm (height) |
Standard testing line |
4 pieces: Red 15m, Black 15m, Yellow 10m, Green 10m each |
Simple testing line |
2 pieces: 1 yellow 1.5m, 1 green 1.5m each |
Auxiliary grounding rod |
4 pieces |
measure time |
Ground voltage: about 2 times/second |
Grounding resistance and soil resistivity: about 7 seconds/time | |
ground voltage |
Measurement below AC 600V (grounding voltage measurement function cannot be used to measure commercial electricity) |
data storage |
500 sets, "MEM" storage indicator, displaying the "FULL" symbol to indicate that the storage is full |
data lookup |
When consulting data, the "MR" symbol indicates |
Overflow display |
The "OL" symbol indicates overflow of over range |
alarm function |
When the measured value exceeds the alarm set value, an alarm prompt will be issued |
battery voltage |
Insufficient battery voltage, displaying low battery symbol "" |
Auto Shutdown |
APO "indicates that it will automatically shut down after 15 minutes of startup |
Power consumption |
Standby: 40mA Max (backlight off) |
Power on backlight: 43mA Max | |
Measurement: 120mA Max (backlight off) | |
Quality |
Instrument: 1280g (including battery) |
Test line: 890g (including simple test line) | |
Auxiliary grounding rod: 720g (4 pieces) | |
Working temperature and humidity |
-10℃~40℃; Below 80% RH |
Storage temperature and humidity |
-20℃~60℃; Below 70% RH |
overload protection |
Measure grounding resistance: AC 280V/3 seconds between ports H-E and S-ES |
insulation resistance |
20M Ω or above (500V between circuit and casing) |
Voltage resistance |
AC 3700V/rms (between circuit and casing) |
electromagnetic properties |
IEC61326(EMC) |
Suitable for safety regulations |
IEC61010-1 (CAT III 300V, CAT IV 150V, pollution level 2); IEC61010-031; IEC61557-1 (Grounding Resistance); IEC61557-5 (soil resistivity); JJG 366-2004。 Product Quality Commitment: |