Vacuum Gauge Pressure Switch
A switch that compares the vacuum pressure being sensed to that of atmospheric pressure.
Positive pressure switches sense monitored pressure above atmospheric pressure while
vacuum switches sense pressure below atmospheric.
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Temperature Switch A Neo-Dyn temperature
switch is identical to a pressure switch with the addition of a fluid-vapor charged
sensing probe. The fluid-vapor charge is exposed to the "basic sensor" and since
probe pressure varies with temperature, discrete temperature settings can be accomplished.
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