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FFT AFC Double Clamp Grounding Resistance Tester For Soil Resistivity Testing

Categories Earth Insulation Tester
Brand Name: GDZX
Model Number: ZXET3007
Certification: ISO9001
Place of Origin: China
MOQ: 1Set
Payment Terms: L/C, T/T, Western Union, MoneyGram,
Supply Ability: 1200Sets/ year
Delivery Time: 3-20 work day
Packaging Details: Carton or Wooden Case
Tool box: Special toolbox design, can bear 200kg
Working temperature and humidity: -10 ℃~40 ℃; below 80% Rh
Storage temperature and humidity: -20 ℃~60 ℃; below 70% Rh
Overload protection Measurement of grounding resistance: AC 280V/3 seconds between C (H) -E, P (S) -ES ports
Insulation resistance: 20MΩ or more (500V between circuit and case)
Withstand: AC 3700V / Rms(between circuit and case)
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    FFT AFC Double Clamp Grounding Resistance Tester For Soil Resistivity Testing

    Earth Insulation Tester

    Double Clamp Grounding / Earth Resistance And Soil Resistivity Tester

    The ZXET3007 grounding resistance tester is designed and manufactured for field measurement of grounding resistance, soil resistivity, grounding voltage, and AC voltage in combination with the new lightning protection grounding resistance detection standard.

    The test current reaches 20mA, using digital and micro-processing technology. Precise 4-wire method, 3-wire method and simple 2-wire method for measuring ground resistance, introducing FFT (Fast Fourier Transform) technology and AFC (Automatic Frequency Control) technology to automatically identify interference and select the measurement frequency to minimize the impact of interference, provide more accurate ground resistance value.


    Features

    1. This instrument is composed of host computer, data software, test line, auxiliary ground rod, communication line, etc.

    2. The special toolbox design of the host, using polypropylene plastic as the raw material, adding a new type of composite filler for one-time injection molding, has low density, strength, rigidity, hardness, wear resistance, heat resistance, and insulation performance, and its box can withstand a pressure of about 200kg, to ensure high accuracy, high stability and high reliability of various environmental tests.

    3. The large LCD display of the host, with backlight, bar graph indication, at a glance.

    4. Can store 2000 sets of data at the same time.

    5. The data software can realize the functions of historical data reading, consulting, saving, reporting, printing and so on.


    Technical Indicators
    FunctionsGround resistance, soil resistivity test; ground voltage, AC voltage test
    Power supplyDC 7.4V 1.8Ah rechargeable lithium battery, the battery is about 8.4V
    BacklightControllable white screen backlight, suitable for use in dark places
    MeasurementPrecision 4-wire, 3-wire method measurement, simple 2-wire measurement of grounding resistance
    Measurement methodGrounding resistance: rated current changing pole method, measuring current 20mA Max
    Soil resistivity: quadrupole method (Wenner method)
    Voltage to ground: average rectification (between P (S) -ES interface)
    RangeTwo, three, four wire method to measure grounding resistance (R): 0.000Ω ~ 300,000Ω
    Soil resistivity (Ρ): 0.00Ωm~9000kΩm
    Ground voltage: AC 0.0~100.0V
    Precision

    Two, three, four wire method to measure grounding resistance (R):

    ± 2% Rdg ± 5dgt (0.000Ω~29.999Ω)

    ± 2% Rdg ± 3dgt (30.00Ω~2999.9Ω)

    ± 4% Rdg ± 3dgt (3000Ω~300000Ω)

    Soil resistivity (Ρ): according to the measurement accuracy of R (Ρ=2πaR A: 1 M~100m; Π=3.14)
    Ground voltage: ± 2% Rdg ± 3dgt

    Note: 1. The additional error when RC Max or RP Max is ≤ ± 5% Rdg ± 5dgt. (RC Max: 4kΩ + 100R<50kΩ, RP Max: 4kΩ + 100R<50kΩ)

    2. Additional error at 5V interference voltage ≤ ± 5% Rdg ± 5dgt.

    Test voltage waveformSine wave
    Test frequency128Hz/111Hz/105Hz/94Hz (automatic frequency selection)
    Short circuit test currentAC 20mA Max
    Open circuit test voltageAC 40V Max
    Electrode spacing1m~100m

    Gear shift

    Grounding resistance: 0.000Ω~300,000Ω automatic gear shift
    Soil resistivity: 0.00Ωm ~ 9000kΩm automatic gear shift
    LCD6-digit LCD display, white screen backlight
    LCD size128mm × 75mm
    LCD display field124mm × 67mm
    Measurement instructionsLED flashing indication during measurement, LCD countdown, progress bar graph indication
    Charging instructionsThe indicator light on the charger lights red when charging, and lights green when fully charged
    SizeInstrument size: length, width and height 320mm×275mm×145mm
    Outer packing size: 400mm×245mm×335mm
    Standard test line4 bars: red 15m, black 15m, yellow 10m, green 10m each
    Simple test line2 bars: red 1.6m, one black 1.6m each
    Auxiliary ground rod4 pieces: Φ10mm×150mm
    Measure timeGround voltage: about 2 times/second; ground resistance: about 7 seconds/time; soil resistivity: about 7 seconds/time
    Measurement timesMore than 5000 times (short circuit test, test once, stop for 30 seconds and then test)
    Line voltageMeasurement below AC 600V
    Communication InterfaceWith RS232 interface, the stored data can be uploaded to the computer, saved and printed
    Communication lineRS232 communication line, 1.5m 1 piece
    Data retention"HOLD" symbol indicates when holding data
    Data storage2000 groups, "MEM" storage indication, display "FULL" indicates that the storage is full
    Data access"READ" symbol indicates when checking data
    Overflow display"OL" symbol indication when over-range overflow
    Interference testAutomatically identify the interference signal, the interference voltage is higher than 5V "NOISE" symbol indication
    Auxiliary ground testWith auxiliary earth resistance test function, 0.00kΩ~30.00kΩ (100R + RC <50kΩ, 100R + RP <50kΩ)
    Alarm functionWhen the measured value exceeds the alarm setting value, "beep--beep--beep--" alarm prompt
    Battery voltageWhen the battery voltage is insufficient, the battery voltage low symbol is displayed to remind the battery to charge.
    Automatic shut-downAutomatic shutdown after 15 minutes
    Working currentStandby: 25mA Max (backlight off);
    Backlight: 25mA Max (separate backlight power consumption);
    When measuring: 150mA Max (backlight off)
    QualityInstrument: 2.66kg (including battery)
    Total mass: 6.88kg (including packaging)
    Tool boxSpecial toolbox design, can bear 200kg
    Working temperature and humidity-10 ℃~40 ℃; below 80% Rh
    Storage temperature and humidity-20 ℃~60 ℃; below 70% Rh
    Overload protectionMeasurement of grounding resistance: AC 280V/3 seconds between C (H) -E, P (S) -ES ports
    Insulation resistance20MΩ or more (500V between circuit and case)
    WithstandAC 3700V / Rms(between circuit and case)
    Electromagnetic characteristicsIEC61326(EMC)
    Suitable for safety regulationsIEC61010-1 (CAT Ⅲ 300V, CAT IV 150V, pollution degree 2);
    IEC61010-031; IEC61557-1 (ground resistance); IEC61557-5 (soil resistivity); JJG 366-2004 (ground resistance meter)

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