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CA6471接地電阻測試儀@CA6471%
技術(shù)參數(shù)：
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測量
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接地電阻/土壤率/耦合
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測量方法
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3極法/
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4極法
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測量范圍
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0.01 ~ 99.9kΩ
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0.001 ~ 99.99kΩ
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分辨率
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0.01 ~ 100Ω
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0.001 ~ 10Ω
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測量頻率
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41 ~ 512 Hz
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地極耦合測量
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有，自動計算
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精度
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2%
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選擇性4P法
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有
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雙鉗法測量范圍
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0.01 ~ 500Ω
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分辨率
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0.01 ~ 1Ω
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測量頻率
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4種：128Hz、1367Hz、1611Hz、1758Hz
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土壤率范圍
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0.01 ~99.9kΩ
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測量頻率
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41 ~ 128Hz
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DC電阻測量
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2線法
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4線法
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測量范圍
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0.12Ω ~ 99.9kΩ
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0.001Ω ~ 99.9kΩ
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測量電流
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> 200mA DC
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寄生電壓最大值
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60 VPEAK
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存儲功能
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512組測量結(jié)果
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通訊接口
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光口/USB 接口
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安規(guī)
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50 V CAT IV
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電源
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鎳氫充電電池，支持直流電源充電
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尺寸
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272 x 250 x 128 mm
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重量
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3kg
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CA6471 ground resistance tester @CA6471%
Portable digital grounding resistance measuring instrument: CA6471 can be used to measure the weldingpoint resistance, grounding resistance (to choose to use or not use current clamp), soil resistivity, ground coupling and step voltage.
Measurement of grounding resistance from 0.01 to99.99k Ω, automatic range switching, automatic matching measurement range, the best measuring frequency and measuring the current is instrument. Measuring frequency is adjustable from 41 to 513Hz (manual or automatic), and the anti-jamming design, can be used for a variety of complex and bad environment (such as the existence of discrete current measurement accuracy)
Can store up to 512 groups of measured results, can check on the instrument, but also by the DataView ®software into PC, automatically generate reports.
CA6471 accord with electrical safety Cat IV, 50V. Over voltage protection up to 250VAC (when the error is connected to the circuit), at the same time the screen display voltage value.
CA6471 solid shell, waterproof and dustproof, simple operation, can be a variety of measurement, is the ideal choice to do maintenance personnel. The mechanicalindex and safety index (such as: impact test, a test, fallingtest) conforms to the IEC standard.
Product features:
Grounding resistance measuring 2 clamp method (no need to call the auxiliary pile)
Welding resistance measurement / conduction testmethod of 2 line or 4 line method (DC resistance),automatic reverse current
3 electrodes method of grounding resistance measurement, and can be manual or automatic frequency selection
4- method of soil rate measurement, automatic calculation of Rho one, can choose Wenner method or Schlumberger method
3 electrodes method coupling resistance measurement
In the environment of electrical noise greatly, manual orautomatic frequency scanning: from 41 to 513Hz, which can obtain the best measurement accuracy
Can choose the test voltage: 16V or 32V, measuring the current can be as high as 250mA
With automatic shutdown function
Automatic recognition of various electrode connection
Can store 512 groups of test results
Optically isolated USB communication interface
Remote setup and operation by the DataView ®
Rechargeable nickel metal hydride (NiMH) battery
Rugged dustproof and waterproof housing - IP54
Meet ground standards IEC 615574 and 5
DataView ® software, data storage, real-time display,analysis, report generation and instrument configuration
Product application:
The 3 electrode method to measure the grounding rods or grounding resistance, the method is only suitable foreasy opening grounding wire occasions
Soil resistivity measurement of soil resistivity, location ofthe lowest position, make the grounding device is more economic and reasonable
Potential measurement, with 3 electrodes method before measuring, used to evaluate the electrical safety. When unable to disconnect the ground wire, when the failure is likely to occur, when the grounding device and the measured size is comparable, suggest potential measurement.
The resistance and conductivity test method of 2 line or 4line method for measuring welding, DC test current to 250mA or higher, which can be used for all ground connection point detection system
Ground coupling measurement and display, for influence between the two grounding resistance evaluation of disconnected
Technical parameters:
Measurement of grounding resistance / soil ratio /coupling
Measurement method of 3 / 4 electrode method
The measurement range of 0.01 ~ 99.9k 0.001 ~ 99.99k
Resolution of 0.01 ~ 100. 0.001 ~ 10
Measuring the frequency of 41 ~ 512 Hz
The coupling measurement, automatic calculation
The accuracy of 2%
Selective 4P method
The measurement range of 0.01 ~ 500 Ω double clamp metho
Resolution of 0.01 ~ 1
Measuring the frequency of 4 types: 128Hz, 1367Hz,1611Hz, 1758Hz
Soil rate range of 0.01 ~99.9k
Measuring the frequency of 41 ~ 128Hz
DC resistance measurement method of 2 line 4 line method
The measurement range of 0.12 ~ 99.9k 0.001 ~ 99.9k
Measuring the current > 200mA DC
Stray voltage maximum value of 60 VPEAK
Storage function of 512 set of measurements
Communication interface /USB interface
Safety of 50 V CAT IV
Power Ni MH rechargeable battery, charging for DC power supply
Size 272 x 250 x 128 mm
Weight 3kg
