產(chǎn)品概述  Product Overview   

HLY600A大電流微歐計(jì)（回路電阻測(cè)試儀）根據(jù)中華人民共和國(guó)新的電力執(zhí)行標(biāo)準(zhǔn)DL/T845.4-2004，采用高頻開關(guān)電源技術(shù)和數(shù)字電路技術(shù)相結(jié)合設(shè)計(jì)而成。它適用于開關(guān)控制設(shè)備回路電阻的測(cè)量。其測(cè)試電流采用國(guó)家標(biāo)準(zhǔn)推薦的直流100A和200A?？稍陔娏?00A的情況下直接測(cè)得回路電阻，也可以在電流200A、400A或600A的情況下直接測(cè)得回路電阻，最后的測(cè)試結(jié)果都用數(shù)字顯示出來。該儀器測(cè)量準(zhǔn)確、性能穩(wěn)定，符合電力、供電部門現(xiàn)場(chǎng)高壓開關(guān)維修和高壓開關(guān)廠回路電阻測(cè)試的要求。

The HLY600A high-current micro-ohmmeter (loop resistance tester) is designed based on the new power execution standard DL/T845.4-2004 of the People's Republic of China，utilizing a combination of high-frequency switching power supply technology and digital circuit technology。It is suitable for measuring the loop resistance of switch control equipment. Its test currents adopt the DC 100A and 200A recommended by national standards。 It can directly measure the loop resistance at a current of 100A，as well as at 200A, 400A, or 600A。The final test results are displayed digitally。This instrument provides accurate measurements and stable performance， meeting the requirements of on-site high-voltage switch maintenance by power and electricity supply departments，as well as loop resistance testing in high-voltage switch factories。

產(chǎn)品用途 Product Application   

該儀器適用于高壓開關(guān)接觸電阻（回路電阻）的高精度測(cè)量，同樣適用于其它需要大電流、微電阻測(cè)量的場(chǎng)合。

This instrument is suitable for high-precision measurement of contact resistance (loop resistance) in high-voltage switches，ａnd it is equally applicable to other scenarios requiring large current and micro-resistance measurements。

性能特點(diǎn)  Performance Characteristics 

1.大電流：采用電源技術(shù)，能長(zhǎng)時(shí)間連續(xù)輸出大電流，克服了脈沖式電源瞬間電流的弊端，可以有效的擊穿開關(guān)觸頭氧化膜，得到良好的測(cè)試結(jié)果。

2.抗干擾能力強(qiáng)：在嚴(yán)重干擾條件下，液晶屏位數(shù)據(jù)能穩(wěn)定在±1個(gè)字范圍內(nèi)，讀數(shù)穩(wěn)定，重復(fù)性好。

3.使用壽命長(zhǎng)：全部采用高精度電阻，有效的消除環(huán)境溫度對(duì)測(cè)量結(jié)果的影響，同時(shí)接插件的使用增強(qiáng)了抗振性能。

4.攜帶方便：體積小、重量輕。

1. High Current:：Utilizing the latest power technology, it can continuously output high current for extended periods， overcoming the drawbacks of pulsed power's instantaneous current，This effectively breaks down the oxidation film on switch contacts，resulting in excellent test results。

2. Strong Anti-interference Capability：Under severe interference conditions，the last digit of the LCD display remains stable within ±1 digit, ensuring stable readings and excellent repeatability。

3. Long Service Life: Employing high-precision resistors，it effectively eliminates the impact of ambient temperature on measurement results。Additionally， the use of military-grade connectors enhances its vibration resistance。

4. Convenient Portability： Its small size and light weight make it easy to carry。

技術(shù)指標(biāo)  Technical Specifications   

1.測(cè)量范圍：1～1999μΩ

2.分 辨 率：1μΩ

3.測(cè)試電流：DC 100A、200A、400A、600A 四檔固定輸出

4.測(cè)量精度：0.5%±1d

5.工作方式：連續(xù)

6.顯示方式：三位半LCD

7.工作電源：AC220V±10%  50Hz

8.工作環(huán)境：溫度- 10℃～40℃   濕度≤80 %RH

1. Measurement range：1-1999 μ Ω

2. Resolution: 1 μ Ω

3. Test current：Four fixed outputs of DC 100A, 200A, 400A, and 600A

4. Measurement accuracy：0.5% ± 1d

5. Working mode： continuous

6. Display mode：Three and a half digit LCD

7. Working power supply： AC220V ± 10% 50Hz

8. Working environment：Temperature -10 ℃~40 ℃ Humidity ≤ 80% RH