Normally Open (NO) refers to the state of an electrical switch contact which stays open until a preset threshold has been met and the switch closes, e.g. a NO pressure switch set at 10 bar will close once the pressure exceeds 10 bar.
- 40B96 Strain Gauge Readout with Process Alarm Relays
- 40B48 Strain Gauge Indicator with Relay Switch Alarms
- SRP94 Large LED Process Display Panel Mount Indicator
- 40T96 Digital Process Alarm Indicator
Measurement Signal Related Terms
More pages related to measurement signal technical terms.