| 特点 |
825 |
826 |
827 |
| 背光 |
－ |
Backlight
|
Backlight |
| 中性线电流检测 |
－ |
Neutral current capabilities
|
100A Neutral Current Clamp included
|
| 自动检测钳形适配器 |
－ |
Auto-detect clamps |
Auto-detect clamps |
| 可选FIFO内存 |
－ |
Optional FIFO memory |
Optional FIFO memory |
| 单相或三相测量 |
Single or three-phase measurements
|
Single or three-phase measurements
|
Single or three-phase measurements |
| 真有效值 |
True RMS |
True RMS |
True RMS |
| 数据存储（1M内存） |
Data logging (1 MB memory)
|
Data logging (1 MB memory)
|
Data logging (1 MB memory)
|
| 最大/最小/平均值 |
Min/max/avg |
Min/max/avg |
Min/max/avg |
| 电能及谐波程序 |
Energy and Harmonics
|
Energy and Harmonics
|
Energy and Harmonics
|
| PC机分析软件 |
PowerVision Software
|
PowerVision Software
|
PowerVision Software
|
| 可选程序 n 扰动 n 检查仪表 n 快速检查 |
Optional programs Disturbances Check-Meter Fast-Check |
Optional programs Disturbances Check-Meter Fast-Check |
Optional programs Disturbances Check-Meter Fast-Check |
| 轻质便携设计 |
Lightweight portable design
|
Lightweight portable design
|
Lightweight portable design
|
| 便于使用的按键设计 |
Easy-to-use push button operation |
Easy-to-use push button operation |
Easy-to-use push button operation |
| 密码保护屏幕设置 |
Password protected on-screen setup
|
Password protected on-screen setup
|
Password protected on-screen setup
|
| 160 x 160点阵式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
|
| 用户数据采集 |
Customized data collection
|
Customized data collection
|
Customized data collection
|
| 实时时钟 |
Real-time clock
|
Real-time clock
|
Real-time clock
|
| 可编程设置，触发点及开始/停止时间 |
Programmable trigger-points and start/stop time |
Programmable trigger-points and start/stop time |
Programmable trigger-points and start/stop time |
| 测量项目 |
|
|
|
| 有功功率（kW） |
Kilowatts |
Kilowatts |
Kilowatts |
| 视在功率（VA） |
Voltamperes |
Voltamperes |
Voltamperes |
| 感性无功功率（kvarL） |
Inductive reactive power |
Inductive reactive power |
Inductive reactive power |
| 容性无功功率（kvarC） |
Capacitive reactive power |
Capacitive reactive power |
Capacitive reactive power |
| 功率因数（PF） |
Power factor
|
Power factor |
Power factor |
| 频率（Hz） |
Frequency |
Frequency |
Frequency |
| 千瓦时（kWh） |
Kilowatt hour |
Kilowatt hour |
Kilowatt hour |
| 每小时无功功率（kvarL，kvarC） |
Reactive power per hour |
Reactive power per hour |
Reactive power per hour |
| 总谐波畸变（％THD） |
Total harmonic distortion |
Total harmonic distortion |
Total harmonic distortion |
| 谐波因数分解至51次谐波 |
Harmonic factorization to 51st harmonic |
Harmonic factorization to 51st harmonic |
Harmonic factorization to 51st harmonic |
| 自动量程 |
Auto ranging
|
Auto ranging
|
Auto ranging
|