China Resistance Tester Three-Wire Grounding Resistance Tester Large LCD Gray Screen Resistance Test

HT3000Digital Ground Resistance Tester

HT3000digital grounding resistance tester, also known as the three-wire grounding resistance tester, grounding resistance meter, etc., is a commonly used instrument for measuring common grounding resistance meters.It uses a large LCD gray screen backlight display and microprocessor technology to meet tIndustrial Brake he two-wire, three-wire test resPneumatic Tools istance requirements.Suitable for telecommunications, electricity, meteorology, computer rooms, oil fields, power distribution lines, iron tower transmission lines, gas stations, factory grounding networks, lightning rods and so on.The instrument has the characteristics of precise, fast, simple, stable and reliable.

HT3000digital grounding resistance tester is controlled by a microprocessor and can automatically detect the connection status of each interface and the interference voltage and interference frequency of the ground networPre-Press Equipment k, and with the function of testing the auxiliary grounding resistance, the measured grounding and auxiliary grounding resistance in the same screen display is clear at a glance.At the same time store 500 sets of data, resistance measurement range: 0.01Ω~ 3000Ω, grounding voltage range: 0 ~ 100V. The online monitoring data can be monitored by the monitoring software. USB data can be uploaded to the PC and has unique functions such as numerical maintenance and intelligent alarm prompting.

HT3000digital grounding resistance tester consists of host computer, monitoring software, test line, USB cable, and grounding pin. It has the functions of reading, checking, saving, reporting and printing of historical data.

Grounding resistance range

0.01Ω~3000Ω Accuracy±1.5%rdg±3dgt

Grounding resistance resolution

0.01Ω

Grounding voltage range

0~100V AC Accuracy±1.5%rdg±3dgt

Grounding voltage resolution

0.01V

base condition

23ºC&pTimer & Counter lusmn;5ºC,below 75%rh (Auxiliary grounding resistance 100Ω±5%,voltageto ground<10V)

Function

Ground resistance measurement, ground voltage measurement, low value resistance measurement

Power

DC 6V 4.5AhLead-acid battery, standby for more than 100 hours

Backlight

Controllable gray screen backlight, suitable for use in dim places

Measuring mode

Precise three-wire measurement, simple two-wire measurement

Measuring methods

Grounding resistance: rated current change pole method, 128Hz;

Ground Voltage: Average Rectification

Test frequency

128Hz

Short-circuit test current

> 20mA ( sine wave)

Wire resistance check

Avoid the errors cause 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 lead, to make the ground resistance test more accurate

Display mode

4-bit large LCD display, gray screen backlight

Measurement instructions

LED flashing indicator during measurement, LCD countdown display

LCD size

108mmx65mm

Instrument size

L/W/H:277.2mmx227.5mmx153mm

Test line length

3 strips:red 15m,yellow 10m,green 5m each one

Simple test line

2 strips:yellow 1.6m,green 1.6m each one

Auxiliary grounding rod

2PCS:φ10mmx200mm

Measure time

Ground voltage: about 3 times/sec; grounding resistance: about 5 seconds/time

Measurement times

More than 5000 times

Line voltage

Measuring voltage to ground: test below AC 100V

USB interface

With USB interface, software monitoring, storage data can be uploaded to the computer, save and print

Communication line

One USB communication line, 1.5m long

Data storage

500 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

Alarm function

Alarm when the measured value exceeds the alarm setting value

Battery voltage

Real-time display of battery power, reminding timely charging when battery voltage is low

Automatic shut-down

"APO" indicates automatic shutdown after 15 minutes

Power consumption

Standby: 40mA Max (backlight off)

Turn on backlight: 43mA Max

Measurement: 120mA Max (backlight off)

Weight

Instrument: 2397g (with battery)

Test line: 850g (including simple test line)

Auxiliary grounding rods: 425g (2)

Instrument bag: 271g

Working temperature and humidity

-10ºC~40ºC;below 80%rh

Storage temperature and humidity

-20ºC~60ºC;below 70%rh

Overload protection

Grounding resistance: AC 280V/3 seconds between E-H and E-S ports

Insulation resistance

Above 10MΩ(500V between circuit and case)

Pressure resistance

AC 3700V/rms(between circuit and case)

Electromagnetic properties

IEC61010-4-3,Wireless frequency electromaCustomized Service for Machinery gnetic field≤1V/m

Suitable for safety regulations

IEC61010-1,IEC1010-2-31,IEC61557-1,5,IEC60529(IP54),pollution level 2,CAT300V

Meter

1PC

Instrument bag

1PC

Auxiliary grounding rod

2PCS

Monitoring software (CD-ROM)

1PC

USB communication line

1PC

Test line

3PCS(red 15m,yellow 10m,green 5m each one)

Simple test line

2PCS(yellow 1.6m,green 1.6m each one)

6V Battery(internal)

1PC

Charger

1PC

Manual, certificate

1SET