Amperometric sensor system

A method of operating an amperometric sensor having a plurality of electrodes, each electrode having a surface exposable to water having at least one parameter to be measured by the plurality of electrodes, the method comprising:

• positioning a sensor housing through an opening into a source of the water having the at least one parameter to be measured to immerse an outer surface of the sensor housing in the water, the sensor housing enclosing a cavity, the sensor housing having at least one inlet opening that extends only from the outer surface of the sensor housing to the cavity to allow water to flow into the cavity from the water source, the sensor housing having at least one outlet opening that extends only from the cavity to the outer surface of the sensor housing to allow water to flow out of the cavity to the water source, the surfaces of the plurality of electrodes positioned within the cavity and exposed to water flowing into the cavity from the at least one inlet opening;
• operating a flow generator positioned within the cavity to draw water into the cavity via the at least one inlet opening and to force water out of the cavity via the at least one outlet opening to thereby cause the water having the at least one parameter to be measured to flow into, through, and out of the cavity and to cause the water to flow across the surfaces of the plurality of electrodes at a substantially constant velocity, the flow generator drawing water into the cavity in a first flow direction, the flow generator redirecting the water to flow in a second flow direction perpendicular to the first flow direction;
• and
• measuring the at least one parameter of the water while the water is flowing across the surfaces of the plurality of electrodes.