805、806、807功能對(duì)照
| 特點(diǎn) | 805 | 806 | 807 |
| 背光 | － | Backlight | Backlight |
| 中性線電流檢測(cè) | － | Neutral current capabilities | 100A Neutral Current Clamp included |
| 自動(dòng)檢測(cè)鉗形適配器 | － | Auto-detect clamps | Auto-detect clamps |
| 可選FIFO內(nèi)存 | － | Optional FIFO memory | Optional FIFO memory |
| 單相或三相測(cè)量 | Single or three-phase measurements | Single or three-phase measurements | Single or three-phase measurements |
| 真值 | True RMS | True RMS | True RMS |
| 數(shù)據(jù)存儲(chǔ)（1M內(nèi)存） | Data logging (1 memory) | Data logging (1 memory) | Data logging (1 memory) |
| /小/平均值 | Min/max/g | Min/max/g | Min/max/g |
| 電能及諧波程序 | Energy and Harmonics | Energy and Harmonics | Energy and Harmonics |
| PC機(jī)分析軟件 | PowerVision Software | PowerVision Software | PowerVision Software |
| 可選程序 - 擾動(dòng) - 檢查儀表 - 快速檢查 | Optional programsDisturbancesCheck-MeterFast-Check | Optional programsDisturbancesCheck-MeterFast-Check | Optional programsDisturbancesCheck-MeterFast-Check |
| 輕質(zhì)便攜設(shè)計(jì) | Lightweight portable design | Lightweight portable design | Lightweight portable design |
| 便于使用的按鍵設(shè)計(jì) | Easy-to-use push button operation | Easy-to-use push button operation | Easy-to-use push button operation |
| 保護(hù)屏幕設(shè)置 | Pword protected on-screen setup | Pword protected on-screen setup | Pword protected on-screen setup |
| 160 x 160點(diǎn)陣式LCD | 160 x 160 pixel LCD | 160 x 160 pixel LCD | 160 x 160 pixel LCD |
| RS-232 通信接口 | RS-232 interface | RS-232 interface | RS-232 interface |
| 用戶數(shù)據(jù)采集 | Customized data collection | Customized data collection | Customized data collection |
| 實(shí)時(shí)時(shí)鐘 | Real-time clock | Real-time clock | Real-time clock |
| 可編程設(shè)置，觸發(fā)點(diǎn)及開始/停止時(shí)間 | Programmable trigger-points and start/s time | Programmable trigger-points and start/s time | Programmable trigger-points and start/s time |
| 測(cè)量項(xiàng)目 | |||
| 有功功率（kW） | Kilowatts | Kilowatts | Kilowatts |
| 視在功率（VA） | Voltamperes | Voltamperes | Voltamperes |
| 感性無(wú)功功率（kvarL） | Inductive reactive power | Inductive reactive power | Inductive reactive power |
| 容性無(wú)功功率（kvarC） | Capacitive reactive power | Capacitive reactive power | Capacitive reactive power |
| 功率因數(shù)（PF） | Power factor | Power factor | Power factor |
| 頻率（Hz） | Frequency | Frequency | Frequency |
| 千瓦時(shí)（kWh） | Kilowatt hour | Kilowatt hour | Kilowatt hour |
| 每小時(shí)無(wú)功功率（kvarL，kvarC） | Reactive power per hour | Reactive power per hour | Reactive power per hour |
| 總諧波畸變（％THD） | Total harmonic distortion | Total harmonic distortion | Total harmonic distortion |
| 諧波因數(shù)分解至51次諧波 | Harmonic factorization to 51stharmonic | Harmonic factorization to 51stharmonic | Harmonic factorization to 51stharmonic |
| 自動(dòng)量程 | Auto ranging | Auto ranging | Auto ranging |
