GB/T 27994-2011

Hydrological monitoring agencies, water resources management departments, and equipment manufacturers use this standard to regulate the design, production, and inspection of equipment for automatic hydrological data acquisition and transmission systems. It ensures reliable operation under harsh environmental conditions, improving the accuracy and stability of hydrological data collection and transmission. This standard is crucial for flood control, water resource management, and water environment protection.

水文监测机构、水利工程管理部门以及相关设备制造商使用该标准来规范水文自动测报系统设备的设计、生产和检验。该标准确保设备在恶劣环境下可靠运行，提高水文数据采集和传输的准确性和稳定性。它对于防洪减灾、水资源管理和水环境保护具有重要意义。

This standard specifies general technical conditions for equipment of automatic systems for hydrological data acquisition and transmission, covering equipment composition, technical requirements, test methods, and inspection rules. Equipment includes sensors, remote terminal units, relay equipment, and central station equipment. The standard requires equipment to operate under wide temperature and high humidity conditions, with low power consumption, high reliability, lightning and interference protection, and specifies key indicators such as bit error rate and clock accuracy. Test methods include environmental adaptability, power consumption, insulation resistance, and electromagnetic immunity tests. This standard provides a unified technical basis for the design, production, and inspection of hydrological monitoring equipment.

本标准规定了水文自动测报系统设备的通用技术条件，涵盖设备组成、技术要求、试验方法、检验规则等。设备包括传感器、遥测终端机、中继设备、中心站设备等。标准要求设备在宽温度、高湿度环境下工作，具备低功耗、高可靠性、防雷抗干扰能力，并规定了误码率、时钟精度等关键指标。试验方法包括环境适应性、功耗、绝缘电阻、抗电磁干扰等测试。该标准为水文监测设备的设计、生产和检验提供了统一的技术依据。