Description:
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:
- Digital Earth Resistance Tester possesses the following features:
- backlight and battery detection function.
- data holding.
- It can be used for precise three-wire measurement or simple
- two-wire measurement.
- When measuring ground resistance, if C or E end of test lead is
- not in good contact, "---- Ω" warning appears on LCD.
- "OL" stands for over range.
- Double insulation or reinforced insulation safety structure
Specifications:
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BRAND: BENETECH
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MODEL: GT5105A Ground Resistance Tester
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1.1 Measurement range and measurement error
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(under condition of 20℃±5℃and≤75%RH)
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Basic Function Range Accuracy Resolution
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Ground 20Ω ±(2%+10) 0.01Ω
-
resistance 200Ω ±(2%+3) 0.1Ω
-
2000Ω ±(2%+3) 1Ω
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2000Ω（two wires) ±(2%+5) 1Ω
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Ground voltage 200V ±(2%+5) 0.1V
-
1.2 Application standard:
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IEC 61010-1 CAT.Ⅲ 600V Pollution degree 2
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CAT.Ⅰ 5000V Pollution degree 2
-
IEC 61326-1 (EMC standard)
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IEC 60529 (IP40)
-
1.3 measurement method:
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(1) Ground voltage measurement: average response
-
(2) Ground resistance measurement: test signal frequency:
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about 820Hz, current: 20Ω about 3.2mA
-
1.4 Working environment: temperature: 5℃~ 40℃; relative
-
humidity: ≤80 ~ RH (no fog) Altitude≤2000 meters
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1.5 Storage conditions: temperature: -20 ~ 60 ℃; relative
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humidity: ≤70% RH (no fog)
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1.6 Power supply: 9V power supply [1.5V (No. 5 alkaline
-
battery) * 6]
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1.7 Overload protection:
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Ground resistance: 200V AC (10 seconds)
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Ground voltage: 400V AC (30 seconds)
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1.8 Insulation resistance: The insulation resistance between
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measurement circuit and case is not less than 20MΩ
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1.9 Dimensions: 176mm * 77mm * 110mm
What's in the box:
- GT5105A Ground Resistance Tester x 1
