Anti Interference High Precision Digital Grounding Resistance Tester

• Customization: Available
• After-sales Service: Provide lifelong after-sales service
• Warranty: 1 Year
• Model NO.: ZXET3005
• Short circuit test current: AC 20mA Max
• Open circuit test voltage: AC 40V Max
• Display mode: 6-digit large LCD display
• LCD size: 128mm*75mm
• Transport Package: Carton/Wooden Case
• Specification: With the change of technical scheme
• Trademark: GDZX
• Origin: Hubei
• Production Capacity: 500 Pieces/Month

Product Description

ZXET3005 Digital Ground Resistance Tester

   

The ZXET3005 digital grounding resistance tester is designed and manufactured according to the new lightning protection grounding resistance detection standard. The short-circuit test current reaches 20mA. The precision 3-wire method or simple 2-wire method measures the grounding resistance. The FFT (fast Fourier transform) technology is introduced, AFC (Automatic Frequency Control) technology has unique anti-interference ability and environmental adaptability, and the consistency of repeated testing is strong. It is widely used in the measurement of grounding resistance and grounding voltage in electric power, telecommunications, meteorology, oil fields, construction, lightning protection, and industrial electrical equipment.

Features
 

1. Two and three-wire method for testing grounding resistance, loop resistance, and on-resistance;

2. Equipotential connection resistance, ground voltage, AC voltage test;

3. Designed according to the new standard of meteorological lightning protection grounding resistance test;

4. The grounding resistance test current reaches 20mA;

5. Toolbox design, pressure resistance 200kg;

6. FFT, AFC technology, strong anti-interference ability;

7. Range: 0.000Ω~3000Ω;

8. Resolution: 0.001Ω.

Technical Indicators

 

Functions	Ground resistance, ground voltage, low value resistance measurement
Power supply	DC 7.4V 1.8Ah rechargeable lithium battery, fully charged and continuous use for about 8 hours
Back light	Controllable white screen backlight, suitable for use in dark places
Measurement	Precision three-wire method and simple two-wire method for measuring grounding resistance
Measurement methods	Two-three-wire method measurement: rated current changing pole method
	Voltage to ground: average rectification (between P-E interface)
Range	Grounding resistance: 0.000Ω ~ 3000Ω Ground voltage: AC 0.0 ~ 100V (50Hz / 60Hz)
Resolution	0.001Ω; 0.1V
Accuracy	Ground resistance: ± 2% Rdg ± 0.05Ω (0 ~ 30Ω) ±2%Rdg±5dgt(30~3000Ω) Note: 1. The auxiliary grounding resistance is 100Ω ± 5%, and the ground voltage is<5V 2. Additional error when the interference voltage is 5V≤ ± 5% Rdg ± 5dgt Ground voltage: ± 2% Rdg ± 3dgt (50Hz / 60Hz)
Test voltage waveform	Sine wave
Test frequency	128Hz/111Hz/105Hz/94Hz(Automatic frequency selection)
Short circuit test current	AC 20mA Max
Open circuit test voltage	AC 40V Max
Display mode	6-digit large LCD display
Measurement instructions	LED flashing indication during measurement, LCD countdown display
LCD size	128mm×75mm
LCD Display	124mm×67mm
Product size	Host size: about 320mm × 270mm × 145mm
	Outer packaging size: 400mm × 245mm × 335mm
Test line	3 bars: red 15m, yellow 10m, green 5m
Simple test line	2 bars: red 1.6m, one black 1.6m
Auxiliary ground rod	2 roots:Φ10mm×150mm
Measure time	Ground voltage: about 2 times / second; ground resistance: about 7 seconds / time
Measurement times	More than 5000 times (short circuit test, test once, stop for 30 seconds and then test)
Line voltage	AC measurement below 100V
Communication interface	With RS232 interface, the stored data can be uploaded to the computer through the data software, saved and printed
Communication line	One RS232 communication line, 1.5m long
Data retention	"HOLD" symbol indicates when holding data
Data storage	2000 groups, "MEM" storage instruction, the storage is full, display "FULL" symbol
Data access	"READ" symbol indicates when checking data
Overflow display	"OL" symbol indication when over-range overflow
Interference test	Automatically identify the interference signal, and display "NOISE" when the interference voltage is higher than 5V
Alarm function	When the measured value exceeds the alarm setting value, "beep--beep--beep--" alarm prompt
Battery voltage	When the battery voltage drop is insufficient, the battery voltage low symbol is displayed to remind the need for charging.
Automatic shut-down	Automatic shutdown after 15 minutes
Power consumption	Backlight: 25mA Max (separate backlight power consumption)
	Standby: 25mA Max (the backlight turns off after turning on)
	Measurement: 150mA Max (backlight off)
Weight	Instrument: 2.645kg (including battery)
	Total weight: 5.95kg (including packaging)
Tool box	Toolbox design, can bear 200kg
Working temperature and humidity	-10 ºC ~ 40 ºC; below 80% Rh
Storage temperature and humidity	-20 ºC ~ 60 ºC; below 70% Rh
Overload protection	Measuring ground resistance: AC-280V / 3 seconds between C-E and P-E ports
Insulation resistance	20MΩ or more (500V between circuit and case)
Withstand	AC 3700V / Rms (between instrument panel and cabinet)
Electromagnetic characteristics	IEC61326(EMC)
Suitable for safety regulations	IEC61010-1 (CAT III 300 V, CAT IV 150V, pollution degree 2); IEC61010-031; IEC61557-1 (ground resistance); JJG366-2004 (Ground resistance meter)

Product pictures

Device display

About GDZX
     Wuhan GDZX Power Equipment Co.,Ltd.is a manufacturer of power test equipment, integrating design, production and sales, providing complete solutions for high-voltage testing and electrical testing services for various power users.The main products include:AC series resonance test device, high voltage test equipment, transformer test equipment, secondary protection / switch test equipment, cable fault tester, arrester test equipment, power metering equipment, standard source series and so on. There are many kinds of products and complete models.

Shipping and packaging