Digital Earth Resistance Tester GT5105A


admin دسامبر 13, 2020 دقیقه مطالعه
Digital Earth Resistance Tester GT5105A

Digital Earth Resistance Tester GT5105A

This instrument is controlled by intelligent micro controller 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.)

این ابزار توسط تراشه هوشمند میکروکنترلر ، با دقت بالا و قابلیت اطمینان بالا کنترل می شود. از آن می توان برای اندازه گیری مقاومت زمین در انواع سیم کشی ، تجهیزات الکتریکی ، تجهیزات حفاظت از صاعقه و سایر دستگاه های اتصال به زمین ، و همچنین می توان ولتاژ زمین را اندازه گیری کرد. (توجه: این ابزار برای شرایط سخت محیطی از قبیل باران ، صاعقه و غیره مناسب نیست)

 

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)
2000Ω(two wires)
±(2%+5)
Ground voltage
200V ±(2%+5) 0.1V

Digital Earth Resistance Tester GT5105A

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

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