Function indicators . llluminates when activated functions are indicated 功能指示,当激活功能指示器时,会有低亮度照明。
3.
Internal lighting ensures the display is optimally lit for a clear readout even in unfavourable lighting conditions . the buttons on the front are used for adjustment of the programmable parameters 内部灯光保证了显示屏具有最佳的照明效果,使得用户在低亮度条件下仍能够清楚地读取数值。前板上的按钮用于对可编程参数进行调节。