Uhv-2571A Portable Grounding Resistance Tester

• After-sales Service: 1 Year
• Warranty: 1 Year
• Display Type: Digital Only
• Model NO.: UHV-2571A
• Certification: CE
• Customized: Customized
• Product Name: Earth Resistance Tester
• Ambient Temperature and Humidity: 23ºC±5ºC, Less Than 75%Rh
• Power: DC 9V 6 Lr14 Dry Battery Continuous Standby More T
• Electrode Spacing When Measuring R: a>5D
• Test Frequency: 128Hz
• Short-Circuit Test Current: AC > 20mA (Sine Wave)
• Open-Circuit Test Voltage: AC 28V Max
• Electrode Spacing Range: Can Be Set to 1m ~ 100m
• Meter Size: 240mm (L)*188mm (W)*85mm (H)
• Transport Package: Carton
• Specification: see details
• Trademark: HV TEST
• Origin: China
• HS Code: 9030899090
• Production Capacity: 300 Sets Per Month

Product Description

Product overview
Ground resistance and soil resistivity tester, also known as four-wire ground tester and precision ground resistance tester, is a common instrument for testing and measuring ground resistance. It adopts a large LCD gray screen backlight display and microprocessor technology to meet the requirements of two, three and four-wire test resistance and soil resistivity.
It is suitable for telecommunication, electric power, meteorological, computer room, oil field, power distribution line, tower transmission line, gas station, factory grounding network, lightning rod, etc. Instrument test precision, fast, simple, stable and reliable.
The ground resistance and soil resistivity tester is controlled by the microprocessor, which can automatically detect the connection status of each interface and the interference voltage and interference frequency of the ground network, and has the function of testing the resistance value of the auxiliary ground electrode. 500 groups of data are stored at the same time. The resistance measurement range is 0.01Ω to 30.00kΩ, and the grounding voltage range is 0.01V to 600V.

Products feature

1,The instrument uses a large LCD gray screen backlight display and microprocessor technology, through the microprocessor control of 2-wire, 3-wire, 4-wire French ground resistance test and soil resistivity test.
2,The instrument brings together many grounding test functions to quickly and comprehensively measure various parameters in the grounding network.
3,The instrument has the characteristics of accurate test, fast, simple, stable and reliable.
4,The instrument uses fast filtering technology to minimize interference. 500 groups of data are stored simultaneously.
 

Product parameter
Technique parameter

Measuring function	Measuring range	Precision	Resolution
Ground resistance (R)	0.00Ω~30.00Ω	±2%rdg±5dgt (Note 1)	0.01Ω
	30.0Ω~300.0Ω	±2%rdg±3dgt	0.1Ω
	300Ω~3000Ω	±2%rdg±3dgt	1Ω
	3.00kΩ~30.00kΩ	±2%rdg±3dgt	10Ω
Soil resistivity(ρ)	0.00Ωm~99.99Ωm	ρ=2πaR (Note 2)	0.01Ωm
	100.0Ωm~999.9Ωm		0.1Ωm
	1000Ωm~9999Ωm		1Ωm
	10.00kΩm~99.99kΩm		10Ωm
	100.0kΩm~999.9kΩm		100Ωm
	1000kΩm~9999kΩm		1kΩm
Ground voltage	AC 0.00~600V	±2%rdg±3dgt	0.01V

Note:

1,Standard condition: Accuracy when Rh Rs<100Ω.

Working conditions: Rh max = 3kΩ+100R < 50kΩ; Rs max = 3kΩ+100R < 50kΩ

2,Depends on the measurement accuracy of R, π=3.14, a:1 m ~ 100m;

General specification

 

Work and energy	Two, three, four lines to measure ground resistance, soil resistivity;
	Grounding voltage and AC voltage measurement
Ambient temperature and humidity	23ºC±5ºC, less than 75%rh
Power	DC 9V 6 LR14 dry battery continuous standby more than 100 hours
Interference voltage	< 20V (should be avoided)
Interference current	< 2A (should be avoided)
Electrode spacing when measuring R	a>5d
Electrode spacing when measuring ρ	a>20h
Auxiliary grounding resistance	The base condition is < 100Ω, and the working condition is < 5kΩ
Measuring range	Ground resistance: 0.00Ω to 30.00kΩ
	Soil resistivity: 0.00Ωm ~ 9999kΩm
	Ground voltage: 0.00V to 600V
Measurement mode	Precision 4-wire, 3-wire method measurement, simple 2-wire ground resistance measurement
Measurement method	Ground resistance: rated current pole-changing method
	Soil resistivity: quadrupole method
	Ground voltage: Average rectification (between S-ES interfaces)
Test frequency	128Hz
Short-circuit test current	AC > 20mA (sine wave)
Open-circuit test voltage	AC 28V max
Electrode spacing range	Can be set to 1m ~ 100m
Shift	Ground resistance: 0.00Ω ~ 30.00kΩ automatic shift
	Soil resistivity: 0.00Ωm ~ 9999kΩm automatic shift
Backlight	Controllable off-white backlight, suitable for use in dim places
Display mode	4 digit large LCD display with off-white backlight
Measurement indication	LED flicker during measurement
LCD size	111mm×68mm
LCD display field	108mm×65mm
Meter size	240mm (L)×188mm (W)×85mm (H)
Standard test line	4 pieces: red 15m, black 15m, yellow 10m, green 10m each 1 piece
Simple test line	2 pieces: yellow 1.5m, green 1.5m each
Auxiliary ground rod	4 roots
Measuring time	Voltage to ground: about 3 times/second
	Ground resistance, soil resistivity: about 7 seconds/time
Ground voltage	AC below 600V measurement (Grounding voltage measurement function cannot be used to measure commercial electricity)
Data storage	500 group, "MEM" storage indicator, showing the "FULL" symbol indicates that the storage is full
Data lookup	The "MR" symbol indicates when consulting data
Overflow display	The "OL" symbol indicates when an overrange overflow occurs
Alarm function	An alarm is issued when the measured value exceeds the alarm setting value
Battery voltage	The battery low voltage symbol is displayed
Automatic shutdown	"APO" indicates that it automatically shuts down after 15 minutes of startup
Power consumption	Standby: Approx. 40mA(backlight off)
	Turn on the backlight: about 43mA
	Measurement: Approx. 75mA(backlight off)
Quality	Meter: 1280g(including battery)
	Test line: 1300g
	Auxiliary ground rod: 720g(4)
Operating temperature and humidity	-10ºC ~ 40ºC; Less than 80%rh
Storage temperature and humidity	-20ºC ~ 60ºC; Below 70%rh
Overload protection	Measurement Ground resistance: AC 280V/3 seconds between H-E and S-ES ports
Insulation resistance	More than 20MΩ (500V between circuit and housing)
Withstand voltage	AC3700V/rms(between circuit and housing)
Electromagnetic characteristic	IEC61326(EMC)
Fit for safety	IEC61010-1(CAT III 300V, CAT IV 150V, pollution degree 2);
	IEC61010-031;
	IEC61557-1(ground resistance);
	IEC61557-5(Soil resistivity);
	JJG 366-2004;