Three-wire grounding resistance tester Digital Ground Resistance Tester

Ground resistance Range

0.01Ω-3000Ω ;  Accuracy: ±1.5%rdg±3dgt

Ground resistance resolution

0.01Ω

Ground voltage Range

0.01V-600V AC ; Accuracy: ±1.5%rdg±3dgt

Ground voltage resolution

0.01V

Base Condition

23C±5°C, below 75% rh (Auxiliary grounding resistance 100Ω±5%, ground voltage<10V)

Function

Ground resistance test, ground voltage test, low value resistance test

Power Supply

1.5V (LR14) Alkaline Battery 6 Section

Backlight

Controllable gray screen backlight, suitable for use in dim places

Measurement Mode

Precise three-wire measurement, simple two-wire measurement

Measurement Method

Grounding resistance: rated current change pole method, 128Hz; ground voltage: average value rectification

Test current

>20mA(sine wave)

Wire Resistance Check

Avoiding the errors caused by the test line not being fully inserted into the instrument interface or being in poor contact or replaced the extended test line by the user, to make the ground resistance measurement more accurate

Display mode

4-bit large LCD display, gray screen backlight

Measure indication

LED flashing indicator during measurement, LCD countdown display

LCD Dimension

108mm×65mm

Meter Dimension

L/W/H: 240mm×188mmx85mm

Test Line Length

3 strips: Red 15m, Yellow 10m, Green 5m each 1 strip

Simple Test Line

2 strips: yellow 1.5m, green 1.5m each 1 strip

Auxiliary Grounding Rod

2 roots

Measure Time

Ground voltage: about 3times/second; Grounding resistance: about 5 times/second

Line Voltage

Measure ground voltage: below AC 600V

Data Storage

500 groups, flashing "FULL" symbol indicates that the storage is full

Data Review

"MR" symbol indication when reviewing data

Overflow Display

Exceed measurement range overflow function: “OL ” symbol display

Alarm Function

Alarm when the measured value exceeds the alarm setting value

Battery Voltage

Insufficient battery voltage, showing low battery symbol

Automatic shut-down

"APO" instruction, automatic shutdown after 15 minutes boot

Power Consumption

Standby: 40 mA Max (backlight off),  

turn on backlight: 43 mA Max,

measure: 120 mA Max (backlight off)

Weight

Instrument: 1230g (including battery),

test line: 610g (including simple test line),

auxiliary grounding rod 360g (2 roots),

instrument bag: 271g

Working Temperature and Humidity

-10°C~40C; below 80% rh

Storage Temperature and Humidity

-20°C~60C; below 70% rh

Overload Protection

Grounding resistance: AC280V/3 seconds between E-H and E-S ports

Insulation Resistance

Above 10MQ (500V between circuit and case)

Pressure Resistance

AC 3700V/rms(between circuit and outside)

Electromagnetic Properties

EC61010-4-3, radio frequency electromagnetic field ≤1V/m

Suitable for Safety Regulations

IEC61010-1, IEC1010-2-31, IEC61557-1, 5, IEC60529 (IP54), pollution degree 2, CAT III 300V