This instrument is controlled by intelligent microcontroller chip, with high accuracy and high reliability; it can be used to measure grounding resistance of various power facilities wiring, electrical equipment, lightning protection equipment and other grounding devices, and it can also measure ground voltage. (Note: This instrument is not suitable for harsh outdoor environmental conditions, such as raining, lightning, etc.)

Digital Earth Resistance Tester possesses the following features:

1.backlight and battery detection function.

2.data holding.

3.It can be used for precise three-wire measurement or simple

two-wire measurement.

4.When measuring ground resistance, if C or E end of test lead is

not in good contact, “—- Ω” warning appears on LCD.

5.”OL” stands for over range.

6.Double insulation or reinforced insulation safety structure.

1.1 Measurement range and measurement error

(under condition of 20℃±5℃and≤75%RH)

 

Basic Function
Range
Accuracy
Resolution
Ground
resistance
20Ω
±(2%+10)
0.01Ω
200Ω
±(2%+3)
0.1Ω
2000Ω
±(2%+3)
1Ω
2000Ω（two wires）
±(2%+5)
 1Ω
Ground voltage
 200V ±(2%+5) 0.1V

 

1.2 Application standard:
IEC 61010-1 CAT.Ⅲ 600V Pollution degree 2
CAT.Ⅰ 5000V Pollution degree 2
IEC 61326-1 (EMC standard)

IEC 60529 (IP40)

1.3 measurement method:

(1) Ground voltage measurement: average response
(2) Ground resistance measurement: test signal frequency:
about 820Hz, current: 20Ω about 3.2mA
1.4 Working environment: temperature: 5℃~ 40℃; relative
humidity:≤80 ~ RH (no fog) Altitude≤2000 meters
1.5 Storage conditions: temperature: -20 ~ 60 ℃; relative
humidity:≤70% RH (no fog)
1.6 Power supply: 9V power supply [1.5V (No. 5 alkaline
battery) * 6]

1.7 Overload protection:

Ground resistance: 200V AC (10 seconds)
Ground voltage: 400V AC (30 seconds)
1.8 Insulation resistance: The insulation resistance between
measurement circuit and case is not less than 20MΩ
1.9 Dimensions: 176mm * 77mm * 110mm
  • Digital Earth Resistance Tester*1
    5 meters of green test lead(with alligator clip)*1
    10 meters of yellow test lead (with alligator clip)*1
    20 meters of red test lead (with alligator clip)*1
    Auxiliary ground nail*2
    No.5 alkaline battery*6
    User’s manual*1
    Strap / Leather Case*1
    Cloth bag*1