FMQ-10000交直流四端低阻箱产品介绍

中文版：
FMQ-10000交直流四端低阻箱是一款高精度、宽量程的电阻模拟设备，专为实验室检测、仪器校准及工业测量场景设计。产品采用四端开尔文连接方式，有效消除引线电阻和接触电阻对测量结果的影响，显著提升低阻值测量的准确性。可同时支持交直流两种工作模式，满足多样化测试需求。

本设备具备0.1μΩ至10kΩ的宽范围电阻输出能力，最小步进值达1μΩ，覆盖工业检测中常见的低阻测量需求。内置高稳定性锰铜合金电阻材料，配合智能温控补偿系统，确保全量程范围内温度系数优于±5ppm/℃，在复杂环境条件下仍能保持优异的长期稳定性。

产品采用模块化分层设计，配备人性化的旋转开关和直读式量程标识，支持快速参数设置。全隔离防护结构有效避免电磁干扰，配合过载保护电路，保障设备在误操作情况下的安全性。紧凑式金属机箱兼顾散热性能与便携需求，标准BNC接口兼容主流测试线缆。

适用于电力系统接地电阻测试、精密仪器零点校准、传感器特性验证等多个领域，可配合数字电桥、多功能校准源等设备构建完整的测试系统。通过优化接触件材料和连接结构，产品接触电势小于0.2μV，在微小信号测量中展现突出优势。

技术参数：

• 电阻范围：0.1μΩ~10kΩ
• 最大允许误差：±(0.02%+2mΩ)
• 最大负荷功率：1W
• 工作频率：DC~1kHz
• 温度系数：＜±5ppm/℃
• 工作环境：-10℃~50℃/RH＜80%

使用建议：
避免在强磁场或剧烈震动的环境中使用，建议定期进行触点清洁维护。通过专业设备进行周期性参数验证可确保长期测量精度。

English Version:
FMQ-10000 AC/DC Four-Terminal Low Resistance Box is a high-precision resistance simulation device with wide measurement range, designed for laboratory testing, instrument calibration and industrial measurement applications. Employing four-terminal Kelvin connection method, the product effectively eliminates the influence of lead resistance and contact resistance, significantly improving the accuracy of low-resistance measurement. It supports both AC and DC working modes to meet diversified testing requirements.

The equipment provides wide-range resistance output from 0.1μΩ to 10kΩ with minimum step increment of 1μΩ, covering common low-resistance measurement needs in industrial applications. Built with high-stability manganin alloy resistors and intelligent temperature compensation system, the temperature coefficient remains better than ±5ppm/℃ across full range, ensuring excellent long-term stability under complex environmental conditions.

Featuring modular layered design with user-friendly rotary switches and direct-reading range indicators, the product enables fast parameter configuration. Full-isolation protective structure effectively prevents electromagnetic interference, while overload protection circuits ensure operational safety during misuse. The compact metal chassis combines heat dissipation efficiency with portability, equipped with standard BNC interfaces compatible with mainstream test cables.

Applicable to power system grounding resistance testing, precision instrument zero-point calibration, sensor characteristic verification and other fields, it can be integrated with digital bridges and multi-function calibrators to build comprehensive test systems. Through optimized contact materials and connection structure, the contact potential is controlled below 0.2μV, demonstrating outstanding performance in micro-signal measurement scenarios.

Technical Parameters:

• Resistance Range: 0.1μΩ~10kΩ
• Maximum Permissible Error: ±(0.02%+2mΩ)
• Maximum Load Power: 1W
• Operating Frequency: DC~1kHz
• Temperature Coefficient: ＜±5ppm/℃
• Operating Environment: -10℃~50℃/RH＜80%

Usage Recommendations:
Avoid operation in strong magnetic fields or severe vibration environments. Regular contact cleaning maintenance is advised. Periodic parameter verification through professional equipment helps maintain long-term measurement accuracy.

（Total words: 中英文合计约650字）