XZTZ3080 three -channel DC resistance tester, also known as power frequency grounding resistance tester, grounding resistance meter, etc., is a commonly used instrument for testing commonly used instruments for measuring grounding resistance. It adopts new frequency conversion AC power supply, dual-frequency measurement technology, large touchable color screen and microprocessor technology to meet the requirements of two-wire, three-wire and four-wire test impedance, and can measure soil resistivity, step voltage, distributed potential, touch voltage , current phase angle and other parameters. It is suitable for telecommunications, electric power, meteorology, computer room, oil field, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods, etc. It meets the standards of power substations and lightning protection devices. The instrument test is accurate, fast, simple, stable and reliable.
The tester outputs an open-circuit rated voltage of 27 V and a maximum short-circuit current of 20 A. Microprocessor control and automatic dual-frequency technology can accurately measure and calculate the grounding impedance value under the 50Hz power frequency state under the strong interference state, and the large-screen display is clear at a glance. At the same time, 500 groups of data are stored, and the resistance measurement range is 0.1 uΩ ～ 5000Ω . The measurement data can be printed by thermal printer , U disk and PC software can be exported .
The three-channel DC resistance tester consists of a host, test lines, etc., and has functions such as reading, viewing, saving, and printing historical data.
Range and Accuracy
|
measure current |
Measuring range |
precision |
Resolution |
|
20A |
0.0001~1.0000mΩ |
±0.2%FS±10dgt |
0.1uΩ |
|
1.001~10.000mΩ |
±0.2%FS±10dgt |
0.0 01mΩ |
|
|
10.01~100.00mΩ |
±0.2%FS±10dgt |
0.01mΩ |
|
|
100.1~1000.0mΩ |
±0.2%FS±10dgt |
0.1mΩ |
|
|
10A |
0.0001~1.0000mΩ |
±0.2%FS±10dgt |
0.1uΩ |
|
1.001~10.000mΩ |
±0.2%FS±10dgt |
0.0 01mΩ |
|
|
10.01~100.00mΩ |
±0.2%FS±10dgt |
0.01mΩ |
|
|
100.1~1000.0mΩ |
±0.2%FS±10dgt |
0.1mΩ |
|
|
5A |
0.001~10.000mΩ |
±0.2%FS±10dgt |
0.001mΩ |
|
10.01~100.00mΩ |
±0.2%FS±10dgt |
0.01mΩ |
|
|
100.1~1000.0mΩ |
±0.2%FS±10dgt |
0.1mΩ |
|
|
1.001~5.000Ω |
±0.2%FS±10dgt |
0.001Ω |
|
|
2A |
0.001~10.000mΩ |
±0.2%FS±10dgt |
0.001mΩ |
|
10.01~100.00mΩ |
±0.2%FS±10dgt |
0.01mΩ |
|
|
100.1~1000.0mΩ |
±0.2%FS±10dgt |
0.1mΩ |
|
|
1.001~10.000Ω |
±0.2%FS±10dgt |
0.001Ω |
|
|
0.5A |
0.01~100.00mΩ |
±0.2%FS±10dgt |
0.01mΩ |
|
100.1~1000.0mΩ |
±0.2%FS±10dgt |
0.1mΩ |
|
|
1.001~10.000Ω |
±0.2%FS±10dgt |
0.0 01Ω |
|
|
10.01~50.00Ω |
±0.2%FS±10dgt |
0.01Ω |
|
|
0.2A |
10.01~100.00Ω |
±0.2%FS±10dgt |
0.01Ω |
|
100.1~1000.0Ω |
±0.2 5 %FS±15dgt |
0.1Ω |
|
|
1001~5000Ω |
±0. 3 %FS± 20dgt |
1Oh |
|
|
Temperature characteristics : plus test accuracy × 0.1/ °C within the operating temperature range . ( outside 18 ℃ to 28 ℃ ) at 8 °C : ±0.2%FS±10dgt (basic accuracy) + 0.1 × 10 (temperature difference ) × (0.2 %FS + 10dgt )= ± 0.4 %FS ± 2 0dgt |
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Technical indicators
|
Function |
It is mainly used to measure the DC resistance of transformers, transformer winding resistance, grounding network connection continuity, wire resistance of cables, contact resistance of switches, connectors, relays, coils, motors, transformer winding resistances and metal riveting resistance, metal components Connection resistance test, low value resistance test, contact resistance test, etc. |
|
Resistance range |
0.1uΩ - 5000Ω _ |
|
power supply |
AC 220V 10A (50Hz) |
|
Rated measuring power |
12 00W |
|
Backlight |
Adjustable backlight brightness |
|
measurement method |
Four-wire test |
|
Short circuit current output |
0.2 A, 0.5 A, 2 A, 5 A, 10 A , 20A ( 6 settings) |
|
Short circuit maximum current |
DC 20A ±10% |
|
No-load maximum voltage |
DC 27V ± 15 % _ |
|
display screen |
7 -inch touch color screen |
|
Overload protection |
Have |
|
automatic discharge |
Have |
|
U disk interface |
Copy and save data |
|
USB interface |
With a USB interface , it can be connected to the host computer to view data |
|
Measurement instructions |
Measurement progress display, real-time measurement display |
|
Meter size |
Length, width and height: 400mm × 300mm ×210mm |
|
Standard test lead length |
4 strips (red 5m, blue 5m, yellow 5m , green 5m 2 each ) |
|
|
Built-in thermal printer |
|
Paper Specifications |
57*40mm |
|
data storage |
500 sets of measurement data storage |
|
Data access |
Have |
|
overflow display |
Over range overflow function: "OL" symbol display |
|
Power consumption |
Standby: ≤ 110W / Measurement: ≤ 15 00W |
|
quality |
Gauge: 7 kg |
|
Working temperature and humidity |
-10℃～40℃; below 80%rh |
|
Storage temperature and humidity |
-20℃～60℃; below 70%rh |
|
Insulation resistance |
10MΩ or more (500V between circuit and case) |
|
Pressure resistance |
AC 3700V/rms (between circuit and case) |
|
Electromagnetic properties |
IEC61010-4-3, radio frequency electromagnetic field≤1V/m |
|
Suitable for safety regulations |
IEC61010-1, IEC1010-2-31, IEC61557-1, 5, IEC60529 (IP54), pollution, etc. 2, CAT Ⅲ 300V |