| 摘要 |
A retractable assembly, including an assembly housing and a tubular holder for a sensor guided in the assembly housing via a stroke movement linearly between a first position and a second position, wherein the sensor ascertains a physical and/or chemical process variable in a process, wherein an on-site electronics is provided, which ascertains as an actual value, or values, information concerning at least one other state variable of the retractable assembly, the process and/or the sensor, and wherein associated with the on-site electronics is a memory unit, in which the ascertained actual value, or values, is/are stored and/or predetermined desired values are stored.
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