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MEWOI-Digital Earth Resistance Tester GT5105A
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: 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. |
Specifications
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
IEC 60529 (IP40)
1.3 measurement method:
1.7 Overload protection : Ground resistance: 200V AC (10 seconds) ; Ground voltage: 400V AC (30 seconds)
