DUOYI DY4100 Digital Earth Ground Resistance Tester Multimeter with Data hold and low battery warning. DY4100 Digital
Earthing Tester Kit Ground resistance measurements from 0.01ohm to 2000ohm with 0.01ohm resolution. Digital Earth Ground Resistance Tester DUOYI DY4100 Earth Resistance Tester Ground Resistance Instrument Megohmmeter Test Earth Resistance Of Various Earth Systems.

DUOYI DY4100 Digital Earth Ground Resistance Tester Multimeter DY4100 Digital Earthing Tester Kit Ground resistance measurements from 0.01ohm to 2000ohm with 0.01ohm resolution

Digital Earth Ground Resistance Tester DUOYI DY4100 Earth Resistance Tester Ground Resistance Instrument Megohmmeter Test Earth Resistance Of Various Earth Systems

DUOYI DY4100 Resistance Tester is Real Digital Earth Tester Ground Resistance Instrument Megohmmeter 0-2000 Ohm Higher Accuracy

1.DY4100 Digital Ground Resistance Tester can test earth resistance of various earth systems including power systems,
electric equipments, lightning conductors as well as resistance value of low resistance conductor and AC voltage test.
2.This one has more complete functions, higher accuracy, more convenient and reliable for operation and more suitable for
outdoor use with dust and wet proof structure.



DUOYI DY4100 Digital Earth Ground Resistance Tester Functions:

Earth ground resistance measurements from 0.01 ohm to 2000 ohms with 0.01 ohm resolution
Data hold, low battery warning
Complete with test wires, auxiliary earth bars, heavy duty oxford fabric bag and six 1.5V AA batteries

DY4100 Digital Earthing Tester Kit Feature:

1. Measuring range of earth resistance: 0-2000Ω. 0/20/200/2000 ohm ±(2%+3)with 0.01 ohm
2. Measuring range of earth voltage: 0-30V(3%+5)
3.LED green light indicates normal operating mode.
4.31/2 digit LCD display for more direct and convenient reading.
5. Low Battery Warning:
on LCD indicates deficiency of 12V battery.
LED red lighting off indicates deficiency of 1.5V battery.
6. Fast Response:
measure earth resistance, about 5 seconds. Measure earth voltage, about 2 seconds.
7.Withstand voltage: AC 500V, 1 minute between circuit and outer casing.
8. Overload protection:
on earth voltage, can withstand 300V AC 1 minute .
on earth resistance, can withstand 200V AC 10 seconds .
9. Power supply,six 1.5V AA batteries ,one 12V battery 23A.(not include)
10.Data Hold:yes
11.Working LED Indicator:yes
12.Function Symbol Display:yes

Digital Earth Ground Resistance Tester DUOYI DY4100 Specification

Earth Ground Resistance:0/20/200/2000Ω ±(2%+3)
Resolution:0.01Ω
Earth Voltage:0~30V ±(3%+5)
Data Hold:yes
Working LED Indicator:yes
Function Symbol Display:yes
Low Battery Warning:yes
Product Size:150×100×70mm.
Weight: about 680g NOT including battery
Power:AA1.5Vx6(UM3) (not include battery)
Working environment:
Working temperature:0°C-40°C relative humidity < 80%
Storage temperature: - 10°C-50°C relative humidity < 85%
Ensured accurate temperature:23°C±5°C
relative humidity < 80%
 











DUOYI DY4100 Earth Resistance Tester Accessories：

1. auxiliary earth bar*2
2).testing wire
(red 1 5-meter testing wire*1 /
yellow 10-meter testing wire*1  /
green 5-meter testing wire*1)
3. simple testing wire
(red 1.6-meter testing wire*1  /
green 1.6-meter testing wire*1)
4. instruction manual*1
5. tool bag*1

Matched battery model:

1. 5V(R6AA) battery*6
12V(23A) battery*1
Battery is not included in the accessory











Earth resistance measurement

Accurate measurement (with the equipped test leads) to puncture the P and C grounding pins to the depth of the ground.
They are arranged in a straight line with the grounding equipment and are spaced 5 to 10 meters apart. (Note: Make sure
the grounding pins are inserted in the wet soil. If the soil of the grounding nail is dry, it is necessary to add water or
stone or the sand to be wet and test)

Grounding resistance test requirements:

a. AC working ground, the grounding resistance should not exceed 4Ω,

b, safe working ground, the grounding resistance should not be greater than 4Ω,

c. DC working grounding, grounding resistance should be determined according to the specific requirements of the computer system;

d, the grounding resistance of the lightning protection ground should not exceed 100Ω;

e. For jointed grounding of shielded systems, the grounding resistance should not be greater than 10 Ω.

Ground voltage measurement

Please turn the dial switch to the grounding voltage "EV" file and connect the test line according to the grounding
voltage test chart. The ground voltage will be automatically displayed. Please make sure that the ground voltage is ≤10V.

If the local voltage is >10V, the grounding resistance measurement value may cause an error. At this point, the relevant
electrica