Strong Inteerence Insulation Resistance Tester 3 Phase Motor Grid System Ground Impedance Detector 0.01-3000 ,Easy to Use

Strong Inteerence Insulation Resistance Tester3 Phase Motor Grid System Ground Impedance Detector 0.01-3000Online

Characteristic

digital grounding resistance tester, also known as three-wire grounding resistance tester, grounding resistance meter, etc., is a common instrument for testing and measuring grounding resistance commonly used instruments. It adopts large LCD gray and white screen backlight display and microprocessor technology to meet the requirements of two-wire and three-wire testing. resistance requirements. It is suitable for telecommunications, electricity, meteorology, computer rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods, etc. The instrument test is accurate, fast, simple, stable and reliable.

digital grounding resistance tester is controlled by a microprocessor, which can automatically detect the connection status of each inteace and the inteerence voltage and frequency of the grounding grid. It also has the function of testing the resistance value of the auxiliary grounding electrode, and displays the measured grounding and auxiliary grounding resistance on the same screen. The value is clear at a glance. Store 500 groups of data at the same time, resistance measurement range: 0.01 ~ 3000, ground voltage range: 0 ~ 100V. The data can be monitored online through the monitoring software, and the USB data can be uploaded to the PC and has functions such as value retention and intelligent alarm prompts.

digital grounding resistance tester is composed of host, monitoring software, test lead, USB cable and grounding pin. It has the functions of reading, viewing, saving, reporting, and printing historical data.

Measuring Range&Technical Specification

Ground resistance range

001-3000 Accuracy ±1.5%rdg±3dgt

Ground Resistance Resolution

0.01

Ground voltage range

0-100V AC Accuracy ±1.5%rdg±3dgt

Ground voltage resolution

0.01V

Baseline conditions

<10V)

Features

Earth resistance measurement, ground voltage measurement, low value resistance measurement

Power supply

DC 6V 4.5Ah lead-acid battery, continuous standby for more than 100 hours

Backlight

Controllable gray and white screen backlight, suitable for use in dark places

Measurement method

Precision three-wire measurement, simple two-wire measurement

Measurement methods

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

Test frequency

Voltage to ground: average value rectification

Short circuit test current

128Hz

Wire resistance check

> 20mA (sine wave)

Display mode

Avoid errors caused by the test wire not fully inserted into the instrument inteace or poor contact or the user replacing the extended test wire, so that the grounding resistance measurement is more accurate.

Measurement instructions

4-digit large LCD display, gray and white screen backlight

LCD size

LED flashing indication during measurement, LCD countdown display

Meter size

108mm×65mm

Test lead length

Length, width and height: 277.2mm×227.5mm×153mm

Simple test lead

3 pieces: 15m for red, 10m for yellow, 1 piece for each of 5m green

Auxiliary ground rod

2: Yellow 1.6m, 1 green 1.6m each

measure time

2 pieces: 10mm×200mm

Number of measurements

Voltage to ground: about 3 times/second; grounding resistance: about 5 seconds/time

Line voltage

More than 5000 times

USB inteace

Measuring voltage to ground: measurement below AC 100V

Communication line

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

Data storage

1 USB communication cable, 1.5m long

Data access

500 groups, "MEM" storage indication, displaying "FULL" symbol means the storage is full

Ovelow display

Data access function: "MR" symbol display

Alarm function

Overrange ovelow function: "OL" symbol display

Battery voltage

When the measured value exceeds the alarm setting value, an alarm prompt will be issued

Automatic shut-down

Real-time display of battery power, reminding to charge in time when the battery voltage is low

Power consumption

The meter shuts down after about 15 minutes of inactivity

Standby: 40mA Max (backlight off)

Turn on the backlight: 43mA Max

Quality

Measurement: 120mA Max (backlight off)

Meter: 2397g (including battery)

Test line: 850g (including simple test line)

Auxiliary ground rod: 425g (2 pieces)

Working temperature and humidity

Gauge bag: 271g

Storage temperature and humidity

-10-40; below 80%rh

Overload protection

-20-60; below 70%rh

Insulation resistance

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

Pressure resistance

10M or more (500V between circuit and case)

Electromagnetic properties

AC 3700V/rms (between circuit and case)

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