I'm not a controls engineer, and my company doesn't have one on staff, so I need some help. I have a scenario where I have a pump suction tank. The tank has 4 float switches installed. One switch is LSL which turns the pump off on low level. The next switch is LSH which turns the pump on on high level. The third is LSH which turns on an indicator light on a pump panel. The last switch is a LSHH which turns on an indicator light on a pump panel and also sends a signal to an autodialer. We currently show the LSL and LSH that turns the pump on or off with an LSL bubble that has a dashed line going to one side of the motor with the word "OFF" and an LSH bubble that has a dashed line going to other side of the motor with the word "ON". My manager thinks that this is not the correct way to show this. Is he right? If so, what the correct way to show this on a P&ID?
Thanks very much for your help.
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