When an instrument is remotely located, what type of line may represent that status?

When an instrument is remotely located, the most appropriate representation is a situation where there is no line depicted. This convention indicates that there is a lack of direct physical connection, differentiating it from instruments that are directly connected or easily accessible. The absence of a line effectively communicates to operators or technicians that special consideration or procedures may be necessary due to the instrument's remote status.

In drawing and schematics, the use of lines typically signifies specific types of connections or interactions between devices, so omitting a line makes it clear that the instrument in question is not within close proximity. This can help prevent misunderstandings during maintenance or operations, ensuring that personnel are aware that the instrument may require different methods for data retrieval or servicing.