The second scheme, in Fig 4-16, uses a counter to advance the digit count. 第二种方案(如图4-16所示)是使用一个计数器进行数字计数。
The level meter includes digit display circuit, count detection and control circuit and two ways control export, its response time is less than 1 second. 此料位计采用数显电路、计数检测控制电路及双路控制输出,反应时间小于1s。