PRESSURE AND TEMPERATURE PICKUP RELAY Russian patent published in 2008 - IPC G01L19/12 

FIELD: instrument making.

SUBSTANCE: invention relates to instrument making and can be used in pressure and temperature control systems as a switching device generating an electrical signal in response to the controlled parameter reaching of a preset value. The pressure and temperature relay pickup comprises a casing housing an angular lever, its one arm being acted upon, via a rod on one side, by a bellows sensitive system and on the other side, by a range spring. The angular lever other arm is arranged to act on the switcher. The return zone adjustment device is made up of U-shape bracket accommodating a screwed-in threaded sleeve with a rod. The rod top end is linked with the extension spring, while its lower part slot receives the angular lever end.

EFFECT: chances of adjusting actuation at lower value of controlled parameter.

1 dwg