主要特性
400 Hz 測量： 通過提高電源頻率至 400 Hz，變壓器和電機比 50 和 60 Hz 時的體積更小、質量更輕，更加有利于飛機、潛艇、宇宙飛船和其他設備和手持工具的應用。 437 II型號實現了此類航空和系統電能質量的測量。
功率逆變器效率： 同時測量電力電子系統的交流輸出功率和直流輸入功率（使用可選的直流電流鉗）。
電參數波形數據捕獲： 捕獲快速變化的 RMS 數據，顯示半周期和波形來描述電氣系統動態特性（發電機起動、UPS 切換等等）。
能量損失分析器： 通過對標準的有功和無功功率測量、不平衡和諧波功率進行量化，以確定電能損失造成的財務成本。
實時故障排除： 使用光標和縮放工具分析趨勢。
安全級別： 引入線額定使用 600 V CAT IV/1000 V CAT III。
測量所有三相和中性線： 內置 4 個柔性電流探頭，增強的細柔性設計以適合緊密的位置。
自動趨勢分析： 每次測量都會自動記錄，無需進行任何設置。
系統監測器： 根據 EN50160 電能質量標準，在一個屏幕上顯示 10 個電能質量參數。
記錄儀功能： 可配置任何測試條件，可按用戶定義的間隔記錄最多 600 個參數。
查看圖形和生成報告： 附帶分析軟件。
電池壽命： 鋰離子電池組每次充電可運行 7 小時。
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.
