FMQJ45線路故障測試儀
產(chǎn)品概述
FMQJ45線路故障測試儀是一款基于電橋測量原理設(shè)計的便攜式檢測設(shè)備，主要用于通訊電纜、架空線路等場景的故障診斷。該儀器能夠精準(zhǔn)識別接地、混線、錯接、斷線等常見線路問題，同時支持一般電阻的測量需求。其內(nèi)置工作電源和靈敏指示儀表，適合現(xiàn)場快速維修與檢測，操作簡便且適應(yīng)性強(qiáng)。56
核心功能
FMQJ45采用可變比例臂和固定比例臂兩種回線測試模式，可覆蓋1Ω~1.011MΩ的阻值測量范圍，基本量程為10~104Ω，準(zhǔn)確度達(dá)0.1%。此外，儀器還具備電容量測試功能，適用于斷線和錯接線故障的定位。其指零儀電流常數(shù)為1μA/mm（內(nèi)阻200Ω），配合4.5V干電池供電（3節(jié)1號電池串聯(lián)），確保在無外接電源環(huán)境下穩(wěn)定工作。17
設(shè)計特點
儀器采用緊湊型設(shè)計，尺寸為230×210×145mm，重量僅2.6kg，便于攜帶和野外作業(yè)。機(jī)身結(jié)構(gòu)堅固，集成度高，內(nèi)置檢流計和電池倉，無需額外配件即可完成多數(shù)測試任務(wù)。用戶可通過直觀的旋鈕和接口快速完成線路連接與參數(shù)調(diào)節(jié)，大幅提升檢測效率。28
應(yīng)用場景
FMQJ45廣泛應(yīng)用于電信、電力、鐵路等行業(yè)的線路維護(hù)，尤其適合長距離電纜和復(fù)雜架空線路的故障排查。其輕量化設(shè)計和抗干擾能力使其在惡劣環(huán)境中仍能保持可靠性能，是工程技術(shù)人員進(jìn)行現(xiàn)場診斷的理想工具。39
Product Overview
The FMQJ45 Line Fault Tester is a portable diagnostic device based on bridge measurement principles, designed for troubleshooting communication cables and overhead lines. It accurately identifies common faults such as grounding, short circuits, misconnections, and breaks, while also supporting general resistance measurement. With built-in power supply and sensitive indicators, it enables efficient on-site repairs and inspections.
Key Features
The FMQJ45 offers both variable and fixed ratio arm testing modes, covering a resistance range of 1Ω~1.011MΩ (base range: 10~104Ω) with 0.1% accuracy. It includes capacitance testing for open and miswired faults, and features a null detector with 1μA/mm sensitivity (200Ω internal resistance). Powered by three 1.5V AA batteries (4.5V total), it ensures reliable operation in field conditions.
Design Highlights
Compact and lightweight (230×210×145mm, 2.6kg), the tester integrates a galvanometer and battery compartment for standalone operation. Its rugged design and intuitive controls simplify connection and parameter adjustment, optimizing workflow for technicians.
Applications
Ideal for telecom, power, and rail industries, the FMQJ45 excels in long-distance cable and complex overhead line maintenance. Its portability and anti-interference capabilities make it a dependable choice for harsh environments.
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FMQJ45線路故障測試儀
的詳細(xì)介紹
本品為攜帶式雙臂電橋，不用附件就可以準(zhǔn)確測定電機(jī)變壓器直流電阻、開關(guān)接觸電阻等，還可借助四端夾具（本廠有售）測定金屬試樣的材質(zhì)電阻率。型號前有FM為市電型，無FM為電池型。
| 型號 |
測量范圍 |
小步進(jìn) |
準(zhǔn)確度 |
尺度cm3 |
| QJ44 |
10-4～11Ω
|
5mΩ
|
0.2 |
31*26*16 |
| FMQJ44A |
| QJ44A |
10-4～11Ω
|
5mΩ
|
0.1 |
重量kg |
| FMQJ44a |
3 |
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