RT2232A數(shù)字微歐計(數(shù)字電橋)
RT2232A數(shù)字微歐計產(chǎn)品中文介紹
RT2232A數(shù)字微歐計是一款采用CMOS大規(guī)模集成電路與高精度恒流源設(shè)計的便攜式數(shù)字儀表，具備41/2位分辨率并通過5位LED顯示屏直觀呈現(xiàn)測量結(jié)果。該儀器適用于測量各類低阻值電阻，如線圈電阻、電動機及變壓器繞組電阻、電纜導線電阻、開關(guān)觸點接觸電阻等，可滿足工廠、實驗室等場景的精密測量需求。其核心特點包括自動/手動量程切換功能（覆蓋0.1μΩ至1.9999kΩ范圍）、采樣速度2-3次/秒，以及溫度穩(wěn)定性（環(huán)境溫度每變化10℃附加誤差不超出基本誤差值）。儀器采用四端測量法，通過恒流源輸出電流在待測電阻上產(chǎn)生壓降并由高靈敏度數(shù)字電壓表檢測，有效消除引線電阻干擾。操作時需注意預(yù)熱60分鐘以確保穩(wěn)定性，且對帶電感的電阻測量需遵循特定步驟以避免反電動勢沖擊。146
RT2232A Digital Micro-Ohmmeter Product Description in English
The RT2232A Digital Micro-Ohmmeter is a 4½-digit portable instrument integrating CMOS LSI technology and precision constant current sources, featuring a 5-segment LED display for clear readability. Designed for low-resistance measurements (0.1μΩ to 1.9999kΩ), it supports applications including coil resistance testing, motor/transformer winding analysis, cable conductor evaluation, and contact resistance checks for electrical components like switches and connectors. Key functionalities encompass dual-range mode (auto/manual), rapid sampling at 2-3 measurements per second, and temperature compensation to maintain accuracy within ±0.1% of reading under varying conditions. The four-terminal Kelvin measurement method ensures reliable results by minimizing contact resistance effects. Users should allow 60-minute warm-up for optimal performance and follow specific protocols when measuring inductive loads. Its compact design (240×320×105mm) and ≤3kg weight enhance portability for field or lab use. 158
技術(shù)原理與操作注意事項
儀器通過恒流源輸出穩(wěn)定電流至被測電阻，利用高精度數(shù)字電壓表（靈敏度0.1μV）采集電壓降并轉(zhuǎn)換為電阻值顯示。測量時需區(qū)分電壓端（Hi/Lo）與電流端（I+/I-）的正確連接方式，對于導線或金屬鉚接電阻測試，建議采用專用夾具以確保接觸點壓力均勻。儀器內(nèi)置過載保護功能，超量程時會顯示"OL"提示，且具備極性自動識別功能。長期存放后首次使用時建議通電3-4小時以恢復性能穩(wěn)定性。146
Technical Specifications & Usage Guidance
The device operates on 220V±10% AC power (50Hz) with ≤30W consumption, and incorporates protective features such as overload indication ("OL" display) and automatic polarity detection. For accurate measurements, the voltage sensing terminals (Hi/Lo) must be placed closer to the test point than current injection terminals (I+/I-) to eliminate lead resistance errors. Specialized test leads are recommended for conductor resistance measurements to ensure minimal contact resistance. When handling inductive loads, allow delayed disconnection post-measurement to dissipate stored energy. The instrument s maintenance includes periodic verification using standard resistors (0.001Ω–1kΩ) to confirm calibration status. 159
RT2232A數(shù)字微歐計(數(shù)字電橋)
的詳細介紹
0.1µ～1.9999kΩ
歡迎選購RT2232A數(shù)字微歐計(數(shù)字電橋)，我們有優(yōu)勢的價格，的服務(wù)！公司承諾，所有商品保證原裝正品，一年保修，終身維護！業(yè)務(wù)咨詢:021-63515606,QQ客服:332318574 歡迎選購RT2232A數(shù)字微歐計(數(shù)字電橋)，我們有優(yōu)勢的價格，的服務(wù)！公司承諾，所有商品保證原裝正品，一年保修，終身維護！業(yè)務(wù)咨詢:021-63515606,QQ客服:332318574 歡迎選購RT2232A數(shù)字微歐計(數(shù)字電橋)，我們有優(yōu)勢的價格，的服務(wù)！公司承諾，所有商品保證原裝正品，一年保修，終身維護！業(yè)務(wù)咨詢:021-63515606,QQ客服:332318574 歡迎選購RT2232A數(shù)字微歐計(數(shù)字電橋)，我們有優(yōu)勢的價格，的服務(wù)！公司承諾，所有商品保證原裝正品，一年保修，終身維護！業(yè)務(wù)咨詢:021-63515606,QQ客服:332318574
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