Xiaobai is asking for help – how should this diagram be understood?
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Please don’t look down on me; could an expert explain this to me?:
Look for the instructions related to the drawings, or the instructions for processes, instrumentation, and control systems.
Isn’t this written according to uniform standards? Beginners are afraid of being laughed at if they go there:L
This post was last edited by altpage on 2022-3-26 at 15:52. Figure 1 shows the level alarm interlock for selecting 2 out of 3 levels; the interlock is activated only when 2 out of the three level alarms trigger simultaneously. Figure 2 does not provide sufficient information; it is presumed that the interlock signal is sent to the motor to start K102B ； There is also an auxiliary control panel that can be used to start the system manually.
Sir, what do those letters mean? HS, IS, YL, ST, STR. . . . And is his painting style standardized?
The home page of the diagram should have a legend; all that information is included in the legend. Ask someone who specializes in instrumentation about it. L——Liquid level ； G——On-site display ； I——Remote display ； A — Alarm ； S——Interlocking ； H——High alarm ； HH——High alarm ； HS — Manual interlock ； IS — Indicating interlock ； STR — Interlock execution record.
Thank you very much:handshake
The instructions are indicated on the first page of the drawing; it’s normal to check them, and no one will laugh at you. It follows the symbols indicated on the diagram and also includes other process information. For reference.