GT5105A Digital Earth Tester

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)

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