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ES3020 Clamp Earth Resistance Tester

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Model

ES3020

ES3020B

ES3020E

Resistance range

0.01Ω-500Ω

0.01Ω-1200Ω

0.01Ω-1500Ω

Current range

N/A

0.00mA-20.0A

0.00mA-40.0A

Voltage range

N/A

N/A

0.0V~100V

Resistance accuracy

±1%±0.01Ω

±1%±0.01Ω

±1%±0.01Ω

Resistor Resolution

0.001Ω

0.001Ω

0.001Ω

Current accuracy

N/A

±2%±1mA

±2%±1mA

Current resolution

N/A

0.01mA

0.01mA

Functions

Ground resistance test, loop resistance test, leakage current test, ground voltage test

Ambient Temperature and Humidity

23℃±5℃,below 75%rh

Power Supply

DC 6V (4 AA alkaline dry batteries)

Measure Method

Mutual induction

Resistance Resolution

0.001Ω

Current Resolution

0.01mA

Jaw Size

55mm×32mm

Clock Function

Have

Ω + A synchronized display

Ω + A display on the same screen

Ground voltage measurement function

Have

Display Mode

4-digit LCD display, black screen design

LCD Size

46mm×29mm

Meter Size

L/W/H:285mm×85mm×58mm

Measure Time

2times/second

USB interface

with USB interface, software monitoring, storage data can be uploaded to the computer, save and print

Communication Line

USB Communication Line 1PC

Data Storage

500 groups,”MEM” storage indication, display “FULL” symbol indicates that storage is full

Data Review

“MR” symbol indicates when looking up data

Overflow display

“OL” symbol indicates over-range overflow

Interference Test

Automatically identify interference signals, the “NOISE” symbol indicates when the interference current is large

Alarm Function

Alarm when the measured value exceeds the alarm setting value

Battery Voltage

Real-time display of battery power, reminding timely charging when battery voltage is low

Automatic shut-down

Turn off after 5 minutes

Power Consumption

50mA Max

Weight

Meter:1180g (including battery)

Working Temperature and Humidity

-10℃~40℃;below 80%rh

Storage Temperature and Humidity

-20℃~60℃;below 70%rh

Insulation Resistance

Above 20MΩ (500V between circuit and case)

Pressure resistance

AC 3700V/rms(between circuit and case)

External Magnetic Field

<40A/m

External Electric Field

<1V/m

Suitable for Safety Regulations

IEC61010-1(CAT Ⅲ 300V、CAT IV 150V、Pollution degree2);IEC61010-031;IEC61557-1(earth resistance);

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