Ambient Humidity

40%-60%

<80%

----

Working Voltage

9V±0.1V

9V±1.5V

rC,rP

Auxiliary Earth Resistance

<100Ω

<30kΩ

----

Interference Voltage

no

<20V

----

Interference Current

no

<2A

Electrode Distance when measuring R

a>5d

a>5d

----

Electrode Distance when measuring ρ

a>20h

a>20h

----

Function

Measurement of 2/3/4-pole earth resistance, soil   resistivity, earth voltage, AC voltage

Power Supply

DC 9V(Zi-Mn dry battery R14S 1.5V 6 PCS, continuous   standby for 300 hours )

Measurement Range

Earth Resistance: 0.00Ω-30.00kΩ

Soil Resistivity: 0.00Ωm-9000kΩm

Measuring Mode

Precise 4-pole measurement, 3-pole measurement, simple   2-pole measurement

Measuring Method

Earth Resistance: rated current change-pole method,   measurement current 20mA Max

Soil Resistivity: 4-pole measurement (Wenner method)
Earth Voltage: average rectification(between P(S)-ES)

Test Frequency

128Hz/111Hz/105Hz/94Hz(AFC)

Short-circuit Test Current

AC 20mA max

Open-circuit Test Current

AC 40V max

Test Voltage Wave

Sine wave

Electrode Distance Range

Can be set 1m-100m

Shift

Earth Resistance: 0.00Ω-30.00kΩ, automatic shift

Soil Resistivity: 0.00Ωm-9000kΩm, automatic shift

Backlight

Blue screen backlight, suitable for dim places

Display Mode

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

Measuring Indicator

During measurement, LED flash indicator, LCD count down   display, progress bar indicator

LCD Frame Dimension

128mm×75mm

LCD Window Dimension

124mm×67mm

Dimension

L×W×H: 215mm×190mm×95mm

Standard Test Wire

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

Simple Test Wire

2 wires: each for red 1.6m and black 1.6m

Auxiliary Earthing Rod

4 rods: Φ10mm×150mm

Measuring Rate

Earth voltage: about 3 times/second

Earth resistance, soil resistivity: about 5   seconds/time

Measuring Times

Over 5000 times (Short-circuit test, interval time   should be at least 30 seconds)

Line Voltage

below AC 600V

RS232 Interface

Possess RS232 interface, software supervision, storage   data can be uploaded to computer, saved or printed.

Communication Wire

One piece of RS232 communication wire, with length 1.5m

Data Storage

300 sets, "MEM" icon storage indicator, flash   display "FULL" icon to indicate storage is full

Data Hold

Data hold function: "HOLD" icon display

Data Access

Data read function: "READ"icon display

Overflow Display

Exceeding measuring range overflow function:   "OL" icon display

Interference Test

Recognize interference signal automatically,   "NOISE" icon display when interference voltage exceed 5V

Auxiliary Earthing Test

Can measure auxiliary earth resistance,   0.00KΩ-30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ)

Alarm Function

When measuring value exceeds alarm setting value, there   is "Toot-toot-toot" alarm hint

Battery Voltage

When battery voltage decreases to about 7.5V, battery   voltage low icon will display, reminding to replace battery.

Power Consumption

Standby: about 20mA (Backlight shut off)

Boot and with backlight: about 45mA (25mA without   backlight)

Measurement: about 100mA (Backlight shut off)

Weight

Total weight: 4.5kg (including package)

Tester: 1443g (including battery)

Tesing wires: 1560g

Auxiliary earthing rods: 935g (4pcs)

WorkingTemp. & Humidity

-10ºC-40ºC, below 80%rh

Storage temp. & humidity

-20ºC-60ºC, below 70%rh

Overload Protection

Measuring earth resistance: between each interfaces   of C(H)-E,P(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 300V,CAT IV 150V,Pollution 2),   IEC61010-031, IEC61557-1 (Earth resistance), IEC61557-5 (Soil resistivity),   JJG 366-2004