HT3030 Digital Earth Network Tester

Ground resistance range

0.030Ω~2000Ω    Accuracy ±1.5%rdg±3dgt

Ground resistance resolution

0.001Ω

Base condition

23℃±5℃,below 75%rh   (Auxiliary ground resistance 10Ω±5%,voltage to earth<10V)

Function

Ground resistant test,Soil resistivity test,Step voltage test, distribution potential test, contact voltage test

Power

AC 220V

Backlight

Controllable gray screen backlight, suitable for use in dim places

Measurement mode

Precise four-wire measurement, simple three-wire measurement, simple two-wire measurement

Measurement method

Grounding resistance: rated current method, 45Hz, 55Hz automatic dual frequency

Test frequency

45Hz,55Hz automatic

Short circuit maximum current

5A(Sine wave)

No-load maximum voltage

400V

Wire resistance check

Avoid grounding resistance measurement errors because of the test line is not fully inserted into the instrument interface or the contactor is incorrectly replaced or the user replaces the extended test leads, to make the ground resistance more accurate.

Display mode

4-bit large LCD display, gray screen backlight

Measurement instructions

LED indicator lights during measurement, LCD countdown display

LCD size

108mm×65mm

Instrument size

L/W/H:277.2mm×227.5mm×153mm

Standard test line length

Red 15m,black 15m,yellow 10m,green 10m,yellow 1.5m,green 1.5m each one

Auxiliary grounding rob

2PCS: 1.5m  2PCS:22cm

Measurement time

Ground resistance:about 50seconds/time

Number of measurement

More that 5000 times

DB9 interface

Connect a thermal printer to print measurement data in real time

Print

External serial thermal printer (with DB9 data cable)

Data storage

300 groups, "MEM" storage instructions, display "FULL" symbol indicates that the storage is full

Data review

Data review function:“MR”symbol display

Overflow display

Over-range overflow function: "OL" symbol display

Automatic shut-down

"APO" indicates, automatic shutdown after 15 minutes

Power consumption

Standby: <5W

Measure:600W

Weight

Instrument:8kg

Test line:1.3kg(1 set)

Auxiliary ground rob:1.3kg(4PCS)

Working temperature and humidity

-10℃~40℃;Below 80%rh

Storage temperature and humidity

-20℃~60℃;Below 70%rh

Insulation resistance

10MΩ above(Between circuit and case500V)

Pressure resistance

AC 3700V/rms(Between circuit and case)

Electromagnetic properties

IEC61010-4-3,Wireless 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