GE PT878GC 用户手册

下载
页码 308
Programming Meter Settings
7-13
April  2004
Adjusting the Contrast (cont.)
To confirm the entries and return to Operate mode, press 
[F3]
 
(OK). 
To leave the window without confirming the entries and return 
to Operate mode, press 
[F2]
 (Cancel) or the 
[ESC]
 key.