Should the wiring on the pressure transmitter or level transmitter be NC or NO?
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For the wiring in the junction box of a pressure transmitter or level transmitter, when should it be connected to NC and when should it be connected to NO?
Select according to the DCS input requirements. By default, the alarm status contacts are closed; it is also possible to choose to have the alarm status contacts open.
NC NO refers to normally closed and normally open; this is definitely not a pressure transformer, but rather a pressure switch. Reference wiring is required.
NC and NO are normally open and normally closed switch output signals; they are pressure switches, not pressure transmitters