用常规方法对智能变送器进行校准是不行的，因为这是由HART变送器结构原理所决定了。智能变送器在输入压力源和产生的4-20mA电流信号之间，除机械、电路外，还有微处理芯片对输入数据的运算工作。因此调校与常规方法有所区别。由于各部分既要单独调校又要联调，因此实际校准时可按以下步骤进行:
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