DEIF TAV-311DG 是一款由丹麦 DEIF A/S 公司生产的独立电压变送器（Voltage Transducer），广泛应用于发电机组控制、船舶电力系统、工业自动化等场景中，用于将交流电压信号转换为标准的直流模拟输出信号，实现对电网或发电机输出电压的监测与远程传输。
核心功能与技术定位：设备类型：独立式电压变送器（Standalone Voltage Transducer）
主要用途：
实时采集发电机或电网的交流电压（如 0–500V AC）
转换为标准的 4–20mA 或 0–10V DC 输出信号，供PLC、DCS、监控系统读取
支持在复杂电磁环境下稳定运行，适用于高频启停、负载波动大的工业现场
关键技术参数（基于公开资料推断）：输入电压范围：
可配置为多种量程，常见为 0–132V AC 或 0–500V AC，适配单相或三相系统
输出信号：
标准两线制 4–20mA 或三线制 0–10V DC，负载能力强，抗干扰性优
精度等级：典型精度 ≤ ±0.5%，确保测量数据可靠
工作电源：通常为 24V DC 或 85–295V AC 宽压供电，适应不同控制柜环境
绝缘耐压：输入与输出之间具备高隔离电压（如 2kV AC），保障系统安全
安装方式：DIN导轨安装，便于集成于控制箱或配电柜内
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