VKCR3250 0.2 High Precision Portable Digital Only Grounding Resistance Tester 5-

Power Supply

DC 7.4V 5200mAh rechargeable lithium battery, the battery is fully charged about 8.4V

Display Mode

7 inches color LCD

Measurement Instruction

LED flash during the measurement

LCD Size

151mm×83mm

Measurement Range

Four clamp method to measure earth resistance: 200Ω

Earth resistance: 0.00Ω~20.00kΩ

Soil resistivity: 0.00Ωm~9000kΩm

Measurement

Four clamp measurement method, Precision four, three-wire measurement method, simple two-wire measurement method to measure earth resistance, AC current, earth voltage

Measuring Method

Pylon earth resistance: Four clamp measurement method
Earth resistance: rated current pole-change method, measuring current 55mA Max
Soil resistivity: Quadrupole method(Wenner)
AC current: clamp type CT, effective value acquisition
Earth voltage: component voltage, effective value acquisition

Test Frequency

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

Short Circuit Test Current

AC 55mA max

Open Circuit Test Voltage

AC 15V max

Test Voltage Waveform

Sine wave

Electrode Spacing Range

Range can be set 1m~100m

Gear Shift

Four clamp measurement method to measure earth resistance: 200Ω fully automatic gear shift

Earth resistance: 0.00Ω~20.00kΩ fully automatic gear shift

Soil resistivity: 0.00Ωm~9000kΩm fully automatic gear shift

AC current(single CT): 1.00mA~500A fully automatic gear shift

Earth voltage: 0.0V~200.0V

Standard Test Line

4 PCS: red 20m, black 20m, yellow 10m, green 10m each 1 PCS

Simple Test Line

2 PCS: red 1.6m, black 1.6m each 1 PCS

Auxiliary Ground Rod

4 PCS: φ9mm×230mm(about 935g)

Measurement Time

Earth resistance, soil resistivity: about 30 seconds/time

Line Voltage

Measurement below AC 600V

Communication Interface

With USB interface, software monitoring, storage data can be uploaded to the computer, saved and printed

Printer

Built in

Memory

100 groups, “001/100” storage instruction,"100/100" indicates that the storage is full

Overflow Display

When over-range overflow "OL" symbol display

Auxiliary Ground Test

With auxiliary grounding resistance value test function, 0.00kΩ~20kΩ(100R+rC<20kΩ,100R+rP<20kΩ)

Alarm Function

When the measured value exceed the alarm set value, the ”siren" alarm symbol prompt

Alarm Threshold Setting Range

Resistance: 0Ω~2000Ω, voltage: 0V~200V, current: 0A~600mA

Automatic Shutdown

Start up 30 minutes without any operation, and then automatic shutdown

Battery Voltage

When the battery voltage drop to about DC 7.2V±0.1V, the low battery voltage symbol indicate to remind that the tester need
to be charged.

Working Current

Standby: about 400mA

Measurement: about 550mA

Caliber Of Current Clamp

Φ68mm

Tester Size

355mm×272mm×164mm

Weight

Tester: about 2765g(include battery)

Current clamp: about 500g×4 PCS

Total weight: about 9000g (include accessory)

Overload Protection

Measurement earth resistance: AC 280V/3 seconds between C(H)-E, P(S)-ES

Protection Level

IP65 (cover closed)

Insulation Resistance

Above 20MΩ(500V between the circuit and the housing)

Withstand Voltage

AC 3700V/rms (between circuit and housing)

Electromagnetic Characteristics

IEC61326(EMC)

Suitable Safety Standard

IEC61010-1(CAT Ⅲ 300V, CAT IV 150V, pollution level 2); IEC61010-031; IEC61557-1(earth resistance); IEC61557-5(soil resistivity);
JJG 366-2004

Working Temperature & Humidity

-10℃~40℃; below 80%rh

Storage Temperature & Humidity

-20℃~60℃; below 70%rh