When the process variable changes from its initial value to the normal value under normal process conditions and the signal status remains unchanged, an operating bypass should not be installed...
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How should this sentence be understood: \"When the process variable changes from its initial value to the normal value under normal process conditions, and the signal status remains unchanged, an operation bypass switch should not be installed.\" Thank you!
How should one understand operating the bypass switch?
It’s not clear; maybe there’s no need for switching or adjustment
To be precise: an operational bypass should be provided when the process parameters and interlock conditions are the same during driving mode.