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ST2241 Grounding resistance Tester/ earth resistance measurement/ soil resistivity meter

Product Description

Product Description
ST2241 Grounding resistance Tester/ earth resistance measurement/ soil resistivity meter
Product Description
1.Basic introduction
Product Name: High Quality Error Small grounding resistance earth tester digital, Multi-function earth resistance clamp meter
Function: grounding resistance, soil resistivity;Ground voltage, AC voltage measurement
Soil Resistivity Range: 0.00Ωm~1kΩm
Resistance Range: 0.00Ω~100.0kΩ
Voltage Range: AC 0.0~600V
Measurement Method: precision four-wire, three-wire measurement, simple two-wire measurement
Line Voltage: measure below AC 100V
Application: ST2241 soil resistivity earth resistance tester is adopted the latest digital and micro-processing technology and can accurately detect ground resistance, soil resistivity, and ground voltage. It uses a fast filtering technique to minimize interference. Displaying the resistance value of the auxiliary electrode in the same screen, which is convenient for judging the measurement error caused by environmental factors, facilitating more accurate measurement of the grounding true resistance value.Widely used in telecommunications, electricity, meteorology, computer rooms, oil fields, power distribution lines, iron tower transmission lines, gas stations, factory grounding networks, lightning rods and so on. The instrument has the characteristics of precise, fast, simple, stable and reliable.
2.Technical Parameters
2.1 Baseline and working conditions
Impact
Benchmark condition
Working conditions
Note
Auxiliary grounding resistance value
<100Ω
<100kΩ
rC, rP
Electrode distance when measuring R
a> 5d
a> 5d
----
Electrode distance when measuring ρ
a>20h
a>20h
----
Ambient temperature
23℃±1℃
-10℃~40℃
----
Environment wet crossing
40% ~ 60%
<80%
----

2.2.General specifications
Function
Two, three or four wires measure ground resistance and soil resistivity;Ground voltage, AC voltage measurement
Power supply
DC 8.4V (2 rechargeable lithium batteries)
Range
Ground resistance: 0.00Ω~100.0kΩ
Soil resistivity: 0.00Ωm ~ 1kΩm (then multiplied by the coefficient 2πa)
Measurement method
Precision 4-wire, 3-wire measurement, simple 2-wire measurement of ground resistance
Short-circuit test current
AC ± 20mA max
Open circuit test voltage
AC ± 20V max
Test voltage waveform
square wave (1KHz)
Electrode pitch range
can be set from 1m to 10m
Standard test line
4 strips: 2 strips of 20m length, 2 strips of 10m length
Simple test lead
2 strips: 1.0m yellow, 1 each green 1.0m
Auxiliary ground rod
4 pieces:φ10mm×150mm
Line voltage
AC 600V or less
USB interface
With USB interface, software real-time monitoring, stored data can be uploaded to the computer, save and print, soil layer analysis and other functions
Communication line
1 USB cable, 1.5m long
Auxiliary ground test
With auxiliary ground resistance value test function, but must meet R + rC<50kΩ, R + rP <50kΩ R is the measured ground resistance
Working temperature and humidity
-10℃~40℃;
Storage temperature and humidity
-20℃~60℃;

2.3.Basic error and performance index under reference conditions
Measurement function
Measuring range
Precision
Resolution
Ground resistance(R)
0.200Ω~2.000Ω
±5%rdg±5dgt
0.001Ω
02.00Ω~20.00Ω
±2%rdg±3dgt
0.01Ω
020.0Ω~200.0Ω
±2%rdg±3dgt
0.1Ω
0200Ω~2000Ω
±2%rdg±3dgt

02.00kΩ~20.00kΩ
±5%rdg±5dgt
10Ω
Soil resistivity(ρ)
depends on the measurement range of R
(ρ=2πa(R÷100) a:1 m~100m;π=3.14)
(ρmin = 1.256Ωm , ρmax = 125.6KΩm )
Ground voltage
AC 0.0~600V
±2%rdg±3dgt
0.1V

Note: 1. When rC or rP is larger, the additional error is ≤ ± 3% rdg ± 5dgt.(rC max<50kΩ; rP max <50kΩ)
Company Profile
Yiwu Kunchang E-commerce Firm
Yiwu Kunchang E-commerce Firm established in 2017, is an international trading company in China, specialized in selling automation products, such as PLC,HMI,AC Inverter, DC Inverter & Spare Parts. Major brands are Siemens, AllenBradley, Mitsubish, Omron, Schneider. Delta. Keyence, Yaskawa. ABB Drives, Hitech, Proface, Sick Sensors etc.
We guarantee all products are 100% original factory package with one year warranty. We are dedicated in providing the best service with high product quality, fast delivery time and sufficient in stock goods.
Power Distribution
Transformer
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