BENETECH GT5105A Digital Earth Resistance Tester

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.)

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.

SPECIFICATION:
Brand Name: BENETECH
Model Number: GT5105A
Operating Temperature: 5-40°C
Dimensions: 176mm*77mm*110mm
Ground voltage measurement: average response
Ground resistance measurement: tester single frequency: about 820HZ, current;20Ω about 3.2mA
Working temperature: 5°C~40°C
Working relative humidity: <80%RH (no fog) Altitude<2000 meters
Storage temperature: -20°C~60°C
Relative humidity: <70%RH (no fog)
Overload protection Ground resistance: 200V AC(10 seconds)
Overload protection Ground voltage: 400V AC(30 seconds)

1.1 Measurement range and measurement error
(under condition of 20℃±5℃and≤75%RH)
Basic Function/Range/AccuracyResolution
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

Package Included:
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

3pcs/CTN