主要特性 400 Hz 测量： 通过提高电源频率至 400 Hz，变压器和电机比 50 和 60 Hz 时的体积更小、质量更轻，更加有利于飞机、潜艇、宇宙飞船和其他设备和手持工具的应用。 437 II型号实现了此类航空和系统电能质量的测量。 功率逆变器效率： 同时测量电力电子系统的交流输出功率和直流输入功率（使用可选的直流电流钳）。 电参数波形数据捕获： 捕获快速变化的 RMS 数据，显示半周期和波形来描述电气系统动态特性（发电机起动、UPS 切换等等）。 能量损失分析器： 通过对标准的有功和无功功率测量、不平衡和谐波功率进行量化，以确定电能损失造成的财务成本。 实时故障排除： 使用光标和缩放工具分析趋势。 安全级别： 引入线额定使用 600 V CAT IV/1000 V CAT III。 测量所有三相和中性线： 内置 4 个柔性电流探头，增强的细柔性设计以适合紧密的位置。 自动趋势分析： 每次测量都会自动记录，无需进行任何设置。 系统监测器： 根据 EN50160 电能质量标准，在一个屏幕上显示 10 个电能质量参数。 记录仪功能： 可配置任何测试条件，可按用户定义的间隔记录最多 600 个参数。 查看图形和生成报告： 附带分析软件。 电池寿命： 锂离子电池组每次充电可运行 7 小时。 The main features 400 Hz measurement: by increasing the power frequency to 400 Hz, transformers and motors are smaller and lighter than at 50 and 60 Hz, making them more useful for aircraft, submarines, spacecraft and other military equipment and hand-held tools. The model 437 II enables the measurement of power quality for such aviation and military systems. Power inverter efficiency: the ac output power and dc input power of a power electronic system are measured simultaneously (using an optional dc current clamp). Electrical parameter waveform data capture: capture rapidly changing RMS data, display half cycle and waveform to describe electrical system dynamic characteristics (generator starting, UPS switching, etc.). Energy loss analyzer: the financial cost of power loss is determined by quantifying standard active and reactive power measurements, unbalanced and harmonic power. Real-time troubleshooting: analyze trends using the cursor and zoom tools. Safety level: rated 600 V CAT IV/1000 V CAT III for lead-in line. Measure all three phases and neutral lines: four flexible current probes are built in, with an enhanced thin flexible design for tight positions. Automatic trend analysis: each measurement is automatically recorded without any setting. System monitor: according to EN50160 power quality standard, 10 power quality parameters are displayed on one screen. Recorder function: any test conditions can be configured, and up to 600 parameters can be recorded at user-defined intervals. View graphics and generate reports: comes with analysis software. Battery life: the lithium-ion battery pack can run for 7 hours on each charge.