ارت سنج دیجیتال مدل GT5105A از کمپانی بنتک میباشد. ارت سنج دیجیتال بنتک مدل GT5105A جزء بهترین ارت سنج های موجود در بازار ایران میباشد. کاربرد ارت سنج دیجیتال بنتک مدل GT5105A اندازه گیری میزان مقاومت اتصال سیم کشی تاسیسات برق ساختمان ، تجهیزات حفاظت در برابر صاعقه و .. میباشد.
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
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