Leak detection for air operated double diaphragm pump

A leak detector comprising:

• a reservoir having a chamber with a tangential inlet and an outlet;
• and
• an optical sensor positioned at a bottom of the reservoir, a detecting portion of the optical sensor extending into the chamber, and
• wherein the reservoir and tangential inlet are configured having a geometry that creates a vortex flow in the reservoir and the reservoir forms a collection chamber for contaminants indicative of a leak to settle onto the optical sensor, and
• wherein the tangential inlet is configured to couple to an exhaust of a pump and create the vortex flow in the reservoir that causes pumping media having a higher density than that of wet air to be driven by the centrifugal forces to move relative to fluid motion toward a side wall of the reservoir and settle on a top of the optical sensor.

A method of pump leak detection, the method comprising:

• configuring a leak detector to have a reservoir having a chamber with an inlet and an outlet, wherein the inlet is configured to couple to an exhaust of a pump and the reservoir is configured to create a vortex flow therein;
• and
• configuring the reservoir to have an optical sensor positioned at a bottom of the reservoir, wherein a detecting portion of the optical sensor extends into the chamber,
• wherein the vortex flow causes one or more liquids to settle at the bottom of the reservoir on the optical sensor and the one or more liquids are indicative of a leak, and
• wherein the optical sensor is configured to detect the one or more liquids.