Digital Ground Resistance Tester, 0-2000Ω/4000Ω

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$361.53

Digital earth ground tester is designed to measure the earth ground resistance, measuring range available with 0 to 2000 Ohm or 0 to 4000 Ohm. The meter can also perform earth voltage test, 0 ~ 200V or 0 ~ 400V. Large LCD display with backlight, easy to read. High stability and low cost.

Model *

SKU: ATO-GRT-UT521

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Delivery date: 6-12 days

Overview
Documents

Digital ground resistance tester is capable of making precise 3-wire and simple 2-wire earth resistance measurement. The earth testing meter is applied for the earth resistance measurement of grounding systems of various power systems, electrical equipment, lightning protection equipment, etc., and also support AC ground voltage test. Light weight, rugged and portable, high reliability and affordable price.

Specification

Model		ATO-GRT-UT521	ATO-GRT-UT522
Earth Ground Resistance (Ω)	0 ~ 20Ω	±(2%+10)	—
	0 ~ 200Ω	±(2%+3)	—
	0 ~ 2000Ω	±(2%+3)	—
	0 ~ 40Ω	—	±(2%+20)
	0 ~ 400Ω	—	±(2%+3)
	0 ~ 4000Ω	—	±(2%+3)
AC Earth Voltage (V)	0 ~ 200V	±(1%+4)	—
	0 ~ 400V	—	±(1%+6)
	Frequency	50Hz/60Hz
Features	Display	2000 counts	4000 counts
	Manual range	√	√
	Auto power off	√	√
	Low battery indication	√	√
	Data hold	√	√
	Data storage	20 sets	20 sets
	LCD backlight	√	√
	Full icon display	√	√
	Double insulation protection	√	√
	Poor contact display	Display "...Ω"	Display "...Ω"
	Over-range display	Display "OL"	Display "OL"
	Simple 2-wire testing	√	√
	Precise 3-wire testing	√	√
General	Power supply	1.5V battery (LR6) x 6
	Display	70.6mm x 34mm
	Operating temperature	0℃ ~ 40℃
	Operating relative humidity	≤80%RH (non-condensing)
	Operating altitude	≤2000m
	Storage temperature	-20℃ ~ 60℃
	Storage relative humidity	≤75%RH (non-condensing)
	Product weight	560g
	Product size	160mm x 100mm x 70.5mm
	Accessories *	Simple test leads with alligator clips, standard test leads with alligator clips, earth spike, batteries, carrying bag

Note: * Batteries are Not Included for air shippment.

Details

Tips: Why do we need test the grounding system?

Good grounding is not only the guarantee for personal safety, but also to prevent plant and equipment from the damage. A good grounding system will improve the reliability of the equipment and reduce the possibility of damage caused by lightning or fault current.

Over time, high humidity, high salinity, and high temperature will change the properties of the soil, possibly increasing the corrosive proximity of the grounding rod and its connections. Thus, although the grounding system has a very low grounding resistance when initially installed, the resistance of the grounding system increases if the grounding rod is corroded. The ground resistance tester is a necessary troubleshooting tool to help you ensure the normal operation of the system. When a troublesome intermittent electrical fault occurs, the fault may be related to poor grounding or poor power quality. This is why it is strongly recommended that all grounding systems and grounding connections be inspected annually as part of predictive maintenance plans. If the measured resistance increases by more than 20% during regular inspection, the technician shall investigate the cause of the problem and reduce the resistance by replacing the grounding system or adding grounding rods to the grounding system.