【ZX21F旋转式电阻箱产品介绍】
ZX21F旋转式电阻箱是一款专为电子电路调试、教学实验及科研测量设计的精密电阻调节设备。其采用模块化组合设计，通过旋转开关实现多档位电阻值的灵活选择，满足用户对电路阻抗的精确控制需求。产品以可靠性和实用性为核心，适用于直流或低频交流电路环境，能够为电子设备校准、信号模拟、电路特性分析等场景提供稳定的电阻支持。
设备主体由高稳定性合金电阻丝与耐磨损接触结构组成，确保电阻值的长期稳定输出。每个独立档位均采用全密封防护设计，有效降低环境湿度与粉尘对内部元件的影响。旋转开关配备精密限位装置，操作手感清晰顺滑，有效避免因误触导致的档位偏移问题。电阻箱支持多级串联组合使用，用户可根据实际需求扩展调节范围，提升设备使用灵活性。
ZX21F在结构设计中特别注重接触可靠性与散热性能优化。大尺寸黄铜接线柱采用镀金工艺处理，显著降低接触电阻并提升电流承载能力，适用于最大工作电流2A的测试环境。内部电阻网络通过特殊排布设计，配合铝合金外壳的辅助散热功能，确保长时间连续工作的温升控制在安全范围内。透明观察窗设计方便用户快速确认当前档位状态，提升操作效率。
该产品广泛应用于高等院校电子实验室、工业设备研发中心、通信设备维护等领域。典型应用场景包括：电子元器件特性测试中的负载模拟、自动化设备控制电路的参数调试、电力系统继电保护装置的功能验证等。通过直观的旋钮调节与清晰的刻度标识，用户可快速完成0.1Ω至100kΩ范围的电阻设定，调节精度达到±0.5%±0.05Ω。
产品参数：
- 总调节范围：0~111,110.0Ω
- 最小步进值：0.1Ω
- 最大承载功率：0.5W/档位
- 工作温度：-10℃~+50℃
- 外形尺寸：220×180×120mm
- 净重：约2.3kg
【ZX21F Rotary Resistance Box Product Introduction】
The ZX21F Rotary Resistance Box is a precision resistance adjustment instrument designed for electronic circuit debugging, teaching experiments, and scientific research applications. Featuring modular construction with multi-position rotary switches, it enables flexible resistance selection across a wide range, providing accurate impedance control for DC or low-frequency AC circuits. This device excels in scenarios requiring stable resistance output, such as equipment calibration, signal simulation, and circuit characteristic analysis.
Constructed with high-stability alloy resistance wires and wear-resistant contacts, the device maintains long-term measurement stability. Each independent position incorporates sealed protection to minimize environmental interference. The precision-locked rotary switch delivers clear tactile feedback, effectively preventing accidental position shifts. The box supports cascading configurations, allowing users to extend the adjustment range according to specific application requirements.
Optimized contact reliability and thermal management define the ZX21F s design. Gold-plated brass terminals reduce contact resistance while enhancing current-carrying capacity, supporting up to 2A continuous current. The internally arranged resistance network, combined with the aluminum alloy housing s heat dissipation properties, ensures safe temperature levels during prolonged operation. A transparent viewing window enables instant verification of current settings, improving operational efficiency.
This product serves diverse applications in university electronics labs, industrial R&D centers, and communication equipment maintenance. Typical use cases include load simulation for component testing, parameter optimization in control systems, and functional verification of power protection devices. With intuitive rotary controls and clear scale markings, users can quickly set resistances from 0.1Ω to 100kΩ, achieving adjustment accuracy of ±0.5%±0.05Ω.
Technical Specifications:
- Total Range: 0~111,110.0Ω
- Minimum Step: 0.1Ω
- Maximum Power: 0.5W/position
- Operating Temperature: -10℃~+50℃
- Dimensions: 220×180×120mm
- Net Weight: 2.3kg
