Pump monitoring device

A pump monitoring device configured to be connected to a case drain of a pump, the device comprising:

• a manifold including an inlet configured for fluid connection to the case drain, an outlet and a fluid path extending between the inlet and the outlet;
• at least one connector provided at the inlet or outlet of the manifold;
• a housing supported by the manifold, each of the housing and the manifold defining a flow sensor chamber in fluid communication with the fluid path;
• a rotatable paddle wheel operatively disposed in the flow sensor chambers defined by the housing and the manifold and including a plurality of paddles in fluid communication with the fluid path and configured to generate a signal indicative of a flow rate of a fluid flowing in the fluid path from the inlet to the outlet;
• a temperature sensor operatively connected to the manifold and configured to generate a signal indicative of a temperature of the fluid flowing in the flow path from the inlet to the outlet;
• a pressure sensor operatively connected to the manifold and configured to generate a signal indicative of a pressure of the fluid flowing in the flow path from the inlet to the outlet;
• and
• at least one fault indicator mounted on the housing and operatively coupled to at least one of the flow rate sensor, the temperature sensor, and the pressure sensor, the fault indicator being configured to provide a human perceptible indication that at least one of a sensed flow rate, a sensed temperature, or a sensed pressure of the fluid flowing in the fluid path exceeds a predetermined threshold value.

A pump monitoring device configured to be connected to a case drain of a pump, the device comprising:

• a manifold including an inlet configured for fluid connection to the case drain, an outlet and a fluid path extending between the inlet and the outlet;
• at least one connector provided at the inlet or outlet of the manifold;
• a flow rate sensor including a temperature sensor, a heater, and a sensor barrel, the sensor barrel being disposed in the fluid path, the heater and the temperature sensor being in thermal communication with the sensor barrel, the heater being configured to heat the sensor barrel and the temperature sensor being configured to generate at least one signal indicative of a temperature of the sensor barrel and also being configured to generate a signal indicative of a temperature of the fluid flowing in the fluid path when the sensor barrel is not being heated by the heater;
• and
• at least one fault indicator operatively coupled to at least one of the flow rate sensor and the temperature sensor, the fault indicator being configured to provide a human perceptible indication that at least one of a sensed flow rate or a sensed temperature of the fluid flowing in the fluid path exceeds a predetermined threshold value.