ＤＢＷ－１１２０型变送器的故障与调校变送器在使用一段时间以后，会出现下列故障：无输出；输出》２０ｍＡ；输出有抖动；线性差；输出漂移等。针对上述情况，我们在工作中总结出以下经验。（１）无输出：检查回路熔丝ＲＤ是否容断：ＤＣ／ＡＣ变换器是否工作；电源互感... DBW-1120-type transmitter failure and adjustment of the transmitter in use for some time after the failure will occur the following: no output; output "20mA; output jitter; linearity; output drift and so on. In view of the above situation, we sum up the following experience in the work. (1) No output: Check if the loop fuse RD is off: DC / AC converter is working;