Electronic Water Level Controls & Sensors

A microprocessor controlled frequency state change detection method uses a low amplitude signal generated on multiple sensor probes of differing lengths. Each probe has a frequency separate from all other probes in the array and independently changes state when touched by water. The state change of the frequency on each probe is monitored by a microprocessor which can perform multiple water level control functions.

A strength of state dependent frequency monitoring is long term stability of the sensing probes. The signal strength is not sufficient to cause fouling, degradation, or deterioration of the sensors due to electrolysis in contaminated water. Sensor cleaning requirements are minimal or eliminated. Use of multiple sensing rods of different length allows the user to intuitively set up control switches at various water heights.

The microprocessor in a state dependent frequency monitor can actuate valves and/or large pumps with very low power consumption. Multiple switch controls can be built in to small package while providing complex, application specific functionality using the microprocessor.  Low power consumption of the controls is consistent across large and small field applications. This universal technology is used in applications with wide ranging water quality.

We use an electronic sensor that contains multiple stainless steel probes that are inserted into the water based liquid being measured.  These sensor probes never foul, plate or degrade, no matter the water quality. The electronic sensor array is connected to our controller, which runs software to determine the water level and activate relays accordingly. The relays can be connected to any operation, but are primarily used for valves, pumps, and alarms. Each probe on the sensor array is responsible for a different function. For example, the WLC 6000 sensor array contains six individual probes that cut out the water heater, activate a “low alarm”, turn on a fill valve, turn off a fill valve, and activate a “high alarm”. There is also a complete line of pump down controls too.  Our various sensors contain different combinations of these functions, and many are custom designed to fit the needs of the customer’s requirements.