DW256 2/3 тестер сопротивления заземления провода может измерить
- Категория: Resistance Meters >>>
- Поставщик: Shenyang,Dawan,Technology,Co.,Ltd.
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Aug-16-2025 | 301.61 $* | 307.70 $* |
| Jul-16-2025 | 244.34 $* | 249.69 $* |
| Jun-16-2025 | 296.16 $* | 302.8 $* |
| May-16-2025 | 294.81 $* | 300.0 $* |
| Apr-16-2025 | 235.3 $* | 240.52 $* |
| Mar-16-2025 | 289.2 $* | 295.49 $* |
| Feb-16-2025 | 287.67 $* | 293.58 $* |
| Jan-16-2025 | 284.31 $* | 290.40 $* |
Характеристики
Products Description
DW256 digital earth resistance tester
DW256 digital earth resistance tester, also known as three-wire earth resistance tester, earth resistance meter, etc., is a
common instrument for testing and measuring earth resistance. It adopts large LCD grey screen backlight display and microprocessor
technology to meet the requirements of two-wire and three-wire test resistance.Suitable for telecommunication, electric power,
meteorology, machine room, oil field, electric power distribution line, tower transmission line, gas station, factory grounding
grid, lightning rod, etc.Instrument testing is accurate, fast, simple, stable and reliable.
DW256 digital ground resistance tester is controlled by microprocessor, which can automatically detect the connection condition
of each interface and the interference voltage and frequency of ground network. Moreover, it has the function of testing auxiliary
ground electrode resistance value, showing the resistance value of measured ground and auxiliary ground at a clear sight on the
same screen.Store 500 groups of data at the same time, the resistance measurement range: 0.01 Ω ~ 3000 Ω, grounding voltage range:
0 ~ 100 v.It can monitor data online through monitoring software, upload DATA to PC via USB, and have unique functions such as
numerical retention and intelligent alarm.
DW256 digital ground resistance tester is composed of host, monitoring software, test wire, USB wire and ground pin, and has the
functions of reading, consulting, saving, reporting and printing historical data.
common instrument for testing and measuring earth resistance. It adopts large LCD grey screen backlight display and microprocessor
technology to meet the requirements of two-wire and three-wire test resistance.Suitable for telecommunication, electric power,
meteorology, machine room, oil field, electric power distribution line, tower transmission line, gas station, factory grounding
grid, lightning rod, etc.Instrument testing is accurate, fast, simple, stable and reliable.
DW256 digital ground resistance tester is controlled by microprocessor, which can automatically detect the connection condition
of each interface and the interference voltage and frequency of ground network. Moreover, it has the function of testing auxiliary
ground electrode resistance value, showing the resistance value of measured ground and auxiliary ground at a clear sight on the
same screen.Store 500 groups of data at the same time, the resistance measurement range: 0.01 Ω ~ 3000 Ω, grounding voltage range:
0 ~ 100 v.It can monitor data online through monitoring software, upload DATA to PC via USB, and have unique functions such as
numerical retention and intelligent alarm.
DW256 digital ground resistance tester is composed of host, monitoring software, test wire, USB wire and ground pin, and has the
functions of reading, consulting, saving, reporting and printing historical data.
Product Paramenters
Technical Specification | ||
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 | 23℃±5℃,below 75%rh (Auxiliary grounding resistance 100Ω±5%,voltage to 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 | 108mm×65mm | |
Instrument size | L/W/H:277.2mm×227.5mm×153mm | |
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:φ10mm×200mm | |
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 | -10℃~40℃;below 80%rh | |
Storage temperature and humidity | -20℃~60℃;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 electromagnetic field≤1V/m | |
Suitable for safety regulations | IEC61010-1,IEC1010-2-31,IEC61557-1,5,IEC60529(IP54),pollution level 2,CAT Ⅲ 300V | |
Accessories | ||
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 | |
Details Images
Company Profile
Shenyang Dawan Technology Co., Ltd.
Founded in 2011, Shenyang Dawan Technology Co., Ltd. develops and produces all kinds of measuring instruments and meters in China and sells them all over the world. The company can provide OEM and ODM services. The company's infrared thermal imager and non-contact infrared thermometer and other products have been widely used in various industries and around the world. At the same time, the company is also acting as an agent of famous instruments and meters in China and the world, doing import and export trade and services for China and other countries. The company has a trading company in Hong Kong, offices and R & D centers in Beijing and Shenzhen. It can do R & D, design, production, sales and service of non-standard and special instruments. The company adheres to the business philosophy of "professionalism, integrity, service and cooperation" and wholeheartedly provides users with the best quality products and services. We are willing to cooperate with colleagues from all walks of life around the world for common development!
FAQ
1. Are your company a trading one or a factory?
Factory + trade (integration)
OEM is also acceptable for us.
2. How to choose the most suitable products?
Our professional team will give you the best suggestion as long as you tell us what kind of test you
need to do and the required specification.
3. What’s the delivery term?
Most of the time, we have stock in the factory. If there is no stock, normally, the delivery time is 15-20
working days after deposit receipt. If you are in urgent need, we can consider making a special
arrangement for you.
4. Do you accept customization service?
Yes, of course, we can not only offer standard machines but also customized machines according to
your request. Don’t hesitate to tell us your requirement, we will try our best to meet your needs.
5. Can we visit your factory before the order?
Yes, we warmly welcome and sincerely invite you or your team to visit our factory, we will help to
arrange a hotel and pick up you from the airport.
6.How about the packing for the machine, is it safely protected during transportation?
Our machine is packed by standard export wooden box, it won’t be damaged. We’ve delivered many
testing machines abroad by sea or by air without damage.
7. What is the order process?
Inquiry - quotation - communication - order confirming - deposit payment - production - testing and
debugging - balance payment - packing - delivery - customer receiving - after service.
8.How to install and use the product
The product is shipped with operating instructions and video of the English version.
Factory + trade (integration)
OEM is also acceptable for us.
2. How to choose the most suitable products?
Our professional team will give you the best suggestion as long as you tell us what kind of test you
need to do and the required specification.
3. What’s the delivery term?
Most of the time, we have stock in the factory. If there is no stock, normally, the delivery time is 15-20
working days after deposit receipt. If you are in urgent need, we can consider making a special
arrangement for you.
4. Do you accept customization service?
Yes, of course, we can not only offer standard machines but also customized machines according to
your request. Don’t hesitate to tell us your requirement, we will try our best to meet your needs.
5. Can we visit your factory before the order?
Yes, we warmly welcome and sincerely invite you or your team to visit our factory, we will help to
arrange a hotel and pick up you from the airport.
6.How about the packing for the machine, is it safely protected during transportation?
Our machine is packed by standard export wooden box, it won’t be damaged. We’ve delivered many
testing machines abroad by sea or by air without damage.
7. What is the order process?
Inquiry - quotation - communication - order confirming - deposit payment - production - testing and
debugging - balance payment - packing - delivery - customer receiving - after service.
8.How to install and use the product
The product is shipped with operating instructions and video of the English version.
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