【ZX74J十进电阻箱 产品介绍】
ZX74J十进电阻箱是一款专为电子电路调试、教学实验及工业测量设计的精密可调电阻设备。该产品通过机械式十进制旋钮结构，提供0.1Ω至10kΩ的宽范围电阻值调节能力，支持精确到0.1Ω的步进调节，满足多样化场景下的电阻模拟需求。模块化设计搭配紧凑的金属外壳，兼顾设备耐用性与操作便捷性，适用于实验室、科研院所及电子制造领域。
核心特点：
- 高稳定性设计：采用氧化膜电阻元件与镀金接触片组合，接触电阻低于0.01Ω，在-10℃至+50℃环境下保持±0.5%的阻值精度。特殊防尘结构有效降低环境粉尘对内部元件的影响。
- 人性化操作界面：八组独立十进制旋钮采用双色刻度标识，支持顺时针/逆时针双向调节。旋钮扭矩经过优化设计，确保调节手感顺滑且定位准确。
- 多场景兼容：配备4mm香蕉插座与接线柱双重接口，支持并联/串联扩展连接。最大允许功率2W（单组），瞬时过载耐受能力达5W/3秒。
- 维护便捷结构：可拆卸式面板设计便于内部清洁保养，所有调节单元采用模块化布局，支持快速故障诊断与部件更换。
应用领域：
• 教育实训：电子工程教学中的欧姆定律验证、分压电路搭建
• 设备校准：作为基准电阻源用于万用表、LCR测试仪校准
• 工业调试：PLC控制系统模拟负载测试、传感器信号模拟
• 科研实验：精密仪器研发阶段的电路特性分析
本产品通过严格的生产工艺控制与全流程老化测试，出厂前完成多级精度验证。主体结构采用铝合金框架与ABS阻燃面板组合，净重1.8kg，工作湿度范围30%~80%RH。配套防震防护箱体可选，为移动工作场景提供额外保护。
【ZX-74J Decade Resistance Box Product Introduction】
The ZX-74J Decade Resistance Box is a precision adjustable resistance device developed for electronic circuit debugging, educational experiments, and industrial measurement applications. Featuring a mechanical decade switching system, it delivers adjustable resistance from 0.1Ω to 10kΩ with 0.1Ω resolution, providing reliable resistance simulation for diverse operational scenarios. The compact metal housing with modular design ensures both durability and operational efficiency, making it ideal for laboratories, research institutions, and electronics manufacturing environments.
Key Features:
- Enhanced Stability: Combines metal oxide resistors with gold-plated contacts, maintaining contact resistance below 0.01Ω. Achieves ±0.5% resistance accuracy across -10℃ to +50℃ with optimized thermal compensation.
- Ergonomic Interface: Eight independent decade dials with bidirectional color-coded scales enable intuitive operation. Precision-engineered rotational torque ensures smooth adjustment and positive detent positioning.
- Multi-application Compatibility: Dual 4mm banana jacks and terminal posts support parallel/series configurations. Each decade section withstands 2W continuous power with 5W/3sec surge capacity.
- Service-Friendly Construction: Removable front panel facilitates internal maintenance, while modular component layout simplifies troubleshooting and part replacement.
Typical Applications:
• Education: Circuit theory demonstrations, voltage divider experiments
• Instrument Calibration: Reference resistance source for multimeters/LCR meters
• Industrial Testing: PLC control system simulation, sensor signal emulation
• Research Development: Circuit characterization during prototype development
Manufactured under rigorous quality control, each unit undergoes multi-stage precision verification and aging tests. The aluminum alloy frame with ABS flame-retardant panels weighs 1.8kg, operating within 30%-80% RH humidity range. Optional shockproof carrying case enhances protection for field applications.
（中英文合计约620字）
