Four-Wire Grounding Resistance Meter Tester Measurement Method : Precision 4-wire, 3-wire measurement, simple 2-wire grounding resistance

4-Terminal Ground Resistance and Soil Resistivity Tester Digital Insulation MeterMeasuring Methods : Grounding resistance: rated current change method

: Soil resistivity: four-pole method

: Ground voltage: average rectification (S-ES interface)

Test Frequency : 128Hz

Short-circuit Test Current : AC >20mA (sine wave)

Open Circuit Test Voltage : AC 28V max

Electrode Spacing Range : can be set from 1m to 100m

Change Gear : Grounding resistance: fully automatic shifting from 0.00Ω to 30.00kΩ

: Soil resistivity: 0.00 Ωm～9000kΩm automatic shifting

Backlight : Gray screen backlight, suitable for dim places

Display Mode : 4-digital super-large LCD display, blue screen backlight

Measuring Indicator : During measurement, LED flash

LCD Frame Dimension : 111mm×65mm

LCD display area : 108mm×65mm

Dimension : L×W×H: 240mm×188mm×85mm

Standard Test Wire : 4 wires: each for red 20m, black 20m, yellow 10m, and green 10m

Simple Test Wire : 2 wires: each for yellow 1.5m and green 1.5m

Auxiliary Earthing Rod : 4 PCS

Measuring Rate : Voltage to ground: about 3 times/second

: Earth resistance, soil resistivity: about 7 seconds/time

Circuit Voltage : below AC 600V(The ground voltage measurement function cannot be used to measure commercial power)

Data Storage : 500 sets, “MEM” icon storage indicator, 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 : Alarm when the measured value exceeds the alarm setting value

Battery Voltage : Low battery voltage symbol display

Automatic Shut-down : "APO" instruction, automatically shut down after 15 minutes of power on

Power Consumption : Standby: About 40mA (backlight off)

: Turn on and backlight on: about 43mA

: Measurement: about 75mA (backlight off)

Weight : Tester：1230g (including battery)

: Testing Wires：1300g

: Auxiliary earthing rod：720g(4PCS)

Working Temperature & Humidity : -10℃～40℃；below 80%rh

Storage temperature & humidity : -20℃～60℃；below 70%rh

Overload Protection : Measuring earth ground resistance: between each interfaces of H-E、S-ES, AC 280V/3 seconds

Insulation Resistance : Over 20MΩ(between circuit and enclosure it is 500V)

Withstanding Voltage : AC 3700V/rms (Between circuit and enclosure)

Electromagnetic Features : IEC61326(EMC)

Protection Type : IEC61010-1 (CAT III 300V, CAT IV 150V, Pollution Degree 2);

: IEC61010-031;

: IEC61557-1 (grounding resistance);

: IEC61557-5 (soil resistivity);

: JJG 366-2004