Automated cleaning system for internal cavities of pressure instruments

A system configured to clean an internal cavity of a Bourdon tube pressure gauge comprising a front faceplate, the system comprising:

• a housing;
• a mount that is configured to receive the Bourdon tube pressure gauge;
• a fluid system comprising a manifold, a plurality of input fluid containers, a plurality of output fluid containers, and a plurality of valves, wherein each of the input fluid containers and the output fluid containers is connected to the manifold via tubing and a respective one of the valves;
• a pressure pump configured to increase the pressure within the input fluid containers;
• a vacuum pump configured to reduce the pressure within the output fluid containers;
• a rotation unit comprising a rotating union having a rotating side and a stationary side, the rotating union configured to allow for fluid passage from the rotating side to the stationary side;
• an agitation unit comprising a motorized pulsation mechanism;
• an electronic controller configured to control operation of the valves, the pressure pump, the vacuum pump, the rotation unit, and the agitation unit;
• the system being configured such that, during operation of the system:
• a cleaning fluid from at least one of the input fluid containers flows into the internal cavity;
• the rotation unit rotates the Bourdon tube pressure gauge relative to the housing about an axis of rotation that passes through and is generally perpendicular to the front faceplate of the Bourdon tube pressure gauge;
• the agitation unit agitates the cleaning fluid in the internal cavity;
• and
• the cleaning fluid in the internal cavity flows into at least one of the output fluid containers.