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针对ST3 0 0 0智能变送器应用中出现的问题 ,提出了供电电压与回路电阻要匹配的问题。采用外接电源供电方式 ,保证变送器表头电压 ,以解决变送器指示不准的问题。
In view of the problems that appeared in the application of the ST3000 intelligent transmitter, the problem of matching the supply voltage and the loop resistance was proposed. Use of external power supply, to ensure that the transmitter header voltage to address the transmitter is not allowed to issue the issue.