七八年三月,石化部机械制造组在大连组织召开了几种石油化工仪表试制产品鉴定会,这些产品的试制成功,一部分满足了化工生产特殊检测的需要,另一部分则可用于Ⅲ型电动单元组合仪表的调试和初校。在鉴定会期间,除对产品进行测试和鉴定外,还由试制产品的用户介绍了试用情况。吹气式铂铑-铂铑热电偶、高温耐磨热电偶、气动浮筒液面变送器,是由大连工学院化 March 1978, the Ministry of Petrochemical Machinery Manufacturing Group held in Dalian organized several petrochemical instrument trial product appraisal meeting, the successful trial of these products, part of the chemical production to meet the special testing needs, the other part can be used for Type Ⅲ electric Unit combination meter debugging and initial school. In the appraisal session, in addition to the product testing and identification, but also by the pilot product users introduced the trial situation. Inflatable platinum and rhodium - platinum and rhodium thermocouple, high temperature wear-resistant thermocouple, pneumatic float level transmitter, by the Dalian Institute of Technology