The documents which represents installation standards is called hook-up drawings.
With hook-up drawings, an engineer can understand how an instrument to be installed in the plant. With hook up drawing we can calculate the material requirement.
Two types of hook up drawings are there.
- Pneumatic hookup.
It is independent of process connection. Pneumatic hookup is basically Tubing/piping
- Process hookup.
Here instruments are directly connected to process line.
An example of hook up drawing is given below.