MEWOI4000-Earth Ground Resistance Tester,Geo Tester,คล้าย Kyoritsu 4105A

Power Supply

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

Backlight

Controllable blue backlight, suitable for use in dark place.

Measuring Mode

Precise 3-pole measurement, simple 2-pole measurement

Measuring Method

Earth ground resistance: rated current change-pole method, measurement current 3mA Max,820Hz;

Voltage to ground: average value rectification

Data Mode

Average value, maximum, minimum

Wire Resistance Verification

Avoid error caused by testing wire that is failed to be fully inserted in o 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, blue screen backlight

Measuring indicator

During measurement, LED flash indicator, LCD count down display

LCD Dimension

128mm×75mm;Display field:124mm×67mm

Dimension

L×W×H: 215mm×190mm×95mm

Testing Wires

Three wires: each for Red 20m, Yellow 10m, and Green 5m

Simple Testing Wire

2 wires: each for Red 1.6m and Green 1.6m

Auxiliary grounding rod

2 PCS:Φ10mm×150mm

Measuring Rate

Voltage to ground: about 3 times/second; earth ground resistance: about 5 seconds/time

Measuring Times

Over 5000 times

(Measuring 10Ω for one time on 20Ω range and take a pause for 25s)

Circuit Voltage

Measuring voltage to ground: measuring 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

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

Data Hold

Data hold function: “HOLD” icon display

Data Read

Data read function: “READ” icon display

Overflow Display

Exceeding measuring range overflow function: “OL” icon display

Alarm Function

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

Battery Voltage

When battery voltage decreases to about 7.8V, battery voltage low icon will display, reminding to replace battery.  

Power Consumption

Backlight:25mA Max

Standby: 25mA Max(Backlight shut off)

Measurement:70mA Max(Backlight shut off)

Weight

Tester:1443g(including battery)

WorkingTemperature & Humidity

-10℃~40℃;below 80%rh

Storage temperature & humidity

-20℃~60℃;below 70%rh

Overload Protection

Measuring earth ground resistance: between each interfaces of E-P,E-C, 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

Wireless frequency electromagnetic field

Protection Type

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

Accessories

Tester:1 pc; Ground rod:2 pcs; Testing wire: 3 pcs ;Simple testing wire: 2 pcs; RS232 line:1 pc; Software disk: 1 pc; Tester bag:1 pc