MEWOI4200-0.01Ω ~ 30.00KΩ AC600A เครื่องทดสอบความต้านทานดินแบบหนีบคู่ / รุ่นอัพเกรดเครื่องตรวจจับ

Power Supply

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

Caliber of clamp

Φ68mm

Measurement Range

Selection method: 0.00Ω-3000Ω

Double clamp method: 0.00Ω-9000kΩ

2/3/4 pole method:0.00Ω~30.00kΩ

Soil resistivity:0.00Ω~9000kΩ

DC resistance:0.00Ω~30.00kΩ

Earth voltage:0.0V~100.0V

AC current:0.00mA~600A

Measuring Mode

Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement, selection method, double clamp method measure grounding resistance

Measuring Method

2/3/4 pole method: change-pole method, measurement current 20mA Max

Selection method: change-pole method, measurement current 20mA Max

Double clamp method: disconnect mutual inductance method, measurement current 1mA Max

Soil Resistivity: 4-pole measurement (Wenner method)

Earth Voltage: average rectification(between P(S)-ES)

AC current: mutual inductance method

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

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 countdown 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 wires: Φ10mm×150mm Over 5000 times (Short-circuit test, interval time should be at least 30 seconds)

Measuring Rate

Voltage to ground: about 2 times/second

Current to ground: about 2 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)

RS232 Interface

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

2000 sets, “MEM” icon storage indicator, 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

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.

Auto-shut off

Automaticlly shut down 15minutes after booting

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: 8.0kg (including package)

Tester: 1653g (including battery)

Testing wires: 1560g

Auxiliary earthing rods: 935g (4pcs)

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 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 Ⅲ 300V、CAT IV 150V、Pollution 2), IEC61010-031, IEC61557-1 (Earth resistance), IEC61557-5 (Soil resistivity), JJG 366-2004

2/3/4 pole method measure earth resistance

(R)

0.00Ω-30.00Ω

±2%rdg±3dgt

0.01Ω

30.0Ω-300.0Ω

±2%rdg±3dgt

0.1Ω

300Ω-3000Ω

±2%rdg±3dgt

1Ω

3.00kΩ-30.00kΩ

±4%rdg±3dgt

10Ω

Selection method to measure grounding resistance(R)

0.00Ω-30.00Ω

±2%rdg±3dgt

0.01Ω

30.0Ω-300.0Ω

±2%rdg±3dgt

0.1Ω

300Ω-3000Ω

±2%rdg±3dgt

1Ω

Double clamp method to measure grounding resistance(R)

0.01Ω-1.00Ω

±10%rdg±5dgt

0.1Ω

1.0Ω-10.0Ω

±10%rdg±5dgt

0.01Ω

10Ω-100Ω

±10%rdg±5dgt

1Ω

Soil Resistivity

(ρ)

0.00Ωm-99.99Ωm

According to the precision of R

(ρ=2πaR

a:1 m-100m,

π=3.14)

0.01Ωm

100.0Ωm-999.9Ωm

0.1Ωm

1000Ωm-9999Ωm

1Ωm

10.00kΩm-99.99kΩm

10Ωm

100.0kΩm-999.9kΩm

100Ωm

1000kΩm-9000kΩm

1kΩm

Earth Voltage(50Hz/60Hz)

AC 0.0-600V

±2%rdg±3dgt

0.1V

AC current(50Hz/60Hz)

0.0mA-600.0A

±2%rdg±3dgt

0.0mA

Tester Bag

1 PC

clamp

2PC

Auxiliary Earthing Rod

4 PCS

Standard testing Wire

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

Simple testing Wire

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

Zinc-manganese Dry Battery

6 PCS（R14S 1.5V）

Monitoring Software Disk

1 Copy

RS232 Communication Cable

1 PC

Manual/Warranty Card/Qualification Certificate

1 Copy