自动气象站DT50数据采集器故障检修方法

针对近年来山东省CAWS600-B型自动气象站出现的DT50数据采集器故障及其修复情况,分类介绍了DT50四种常见故障的实验室检修方法。在实验室进行DT50检修时,首先采用专用通信线直接连接DT50和主控机的简化连接方式实现DT50的数据通信;要素数据异常故障可考虑更换通道选择芯片CD4052进行排除;通信故障一般可通过更换通信驱动模块SP312进行排除;采集器内置程序跑飞时,需要重新写入DT50内置程序;DT50内部时间显示错误时考虑更换下电路板电池;对DT50故障检修过程中的注意事项进行了说明。通过以上四种故障检修方法,能够成功修复除数据小幅超差以外的绝大多数DT50故障。

Troubleshooting of DT50 Data Collector

Aiming at the failure and maintenance of DT50 data collectors from CAWS600-B automatic weather stations in recent years in Shandong Province,four common faults of DT50 data collectors are classified and discussed.While repairing DT50 in a laboratory,DT50 communicates with a computer by the simplified approach,using a communication line to connect DT50 and the computer directly.The troubleshooting method of abnormal detection data failure is to replace the channel chip （CD4052）.Generally,the communication failure recovery method is to replace the communication driver chip （SP312）.The built-in program runaway failure can be solved by rewriting the built-in program.When the internal time of DT50 goes wrong,the battery in the following circuit board should be replaced by a new one.The matters needing attention in troubleshooting are also discussed.Through the four troubleshooting methods,the most failures of DT50 can be repaired successfully,except small-tolerance data failure.