Earth Ground Resistance Tester with Range 0.01Ω～3000Ω Resolution 0.01Ω 3 Wire

Battery not included in package!!


Introduction:
   
    The instrument is widely used in telecommunication, electric power, meteorology, engine room, oil field, electric power distribution line, tower transmission line, gas station, factory grounding network, lightning rod and so on. The instrument is characterized by accurate, fast, simple, stable and reliable testing.

Technical Specifications：


  •  Ground Resistance Range

    0.01Ω～3000Ω Accuracy±1.5%rdg±5dgt

     Ground resistance resolution

    0.01Ω

    Grounding voltage range

    0.01～600V AC Accuracy±1.5%rdg±3dgt

     Ground voltage resolution

    0.01V

    Reference conditions 

    23°C±5°C, 75%rh or less (Auxiliary earth resistance 100Ω±5%, voltage to ground <10V)

     Function

    Earth ground resistance measurement, voltage to ground measurement, low value resistance measurement

    Power Supply

    DC 6V 1.5V LR14 battery

    Backlight

    Controllable gray screen backlight, suitable for use in dim places 

     Measuring Mode

    Precise 3-pole measurement, simple 2-pole measurement

    Measuring Method

    Earth ground resistance: rated current change-pole method, Test current >20mA (sine wave)，128Hz；

    Voltage to ground: average value rectification

    Wire Resistance Verification

    Avoid error caused by testing wire that is failed to be fully inserted into tester interface or by poor contact or by users’ replacing or lengthening testing wires, making it more accurate for earth ground resistance measurement.

     Display Mode

    4-digital super-large LCD display, gray screen backlight

     Measuring indicator

    During measurement, LED flash indicator, LCD count down display

     LCD Dimension

    108mm×65mm

    Dimension

    L×W×H: 240mm×188mm×85mm

    Testing Wires

    Three wires: each for Red 15m, Yellow 10m, and Green 5m

     Simple Testing Wire

    2 wires: each for Red 1.5m and Green 1.5m

     Auxiliary earthing rod

    2 PCS

    Measuring Rate

    Voltage to ground: about 2 times/second; earth ground resistance: about 5 seconds/time

    Measuring Times

    Over 5000 times

    Circuit Voltage

    Measuring voltage to ground: measuring below AC 600V

    Data Storage

    500 sets, flash display “FULL” icon to indicate storage is full

    Data Read

    Data read function: “MR” icon display

    Overflow Display

    Exceeding measuring range overflow function: “OL” icon display

    Alarm Function

    When measuring value exceeds alarm setting value, there is beeper alarming

    Battery Voltage

    Battery power indicate in real time, the battery voltage is low and remind to charge in time

    Power Consumption

    Backlight：25mA Max

    Standby: 25mA Max(Backlight shut off)

    Measurement：70mA Max(Backlight shut off)

    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 E-H、E-S, AC 280V/3 seconds

    Insulation Resistance

    Over 10MΩ(between circuit and enclosure it is 500V)

    Withstanding Voltage

    AC 3700V/rms (Between circuit and enclosure)

    Electromagnetic Features

    IEC61010-4-3, radio frequency electromagnetic field ≤ 1V/m

    Protection Type

    IEC61010-1、IEC1010-2-31、IEC61557-1,5、IEC60529(IP54)、Pollution grade 2、CAT Ⅲ 300V