초록 ▼

The control systems and technique can regulate or control operations of a water treatment system in a primary control mode and, when appropriate, in a secondary or an alternate control mode. The primary control can represent a normal control mode during which the water treatment system is intended t

The control systems and technique can regulate or control operations of a water treatment system in a primary control mode and, when appropriate, in a secondary or an alternate control mode. The primary control can represent a normal control mode during which the water treatment system is intended to operate. The alternate control mode can represent a second control or mode of operation. The systems can be operated to control or facilitate regulation, monitoring, and performance of one or more operating parameters of one or more water systems between, or to and from, a first mode, a second or alternate mode, and, in some cases, a third or even a fourth control mode. The change in control mode can be triggered by identifying one or more predetermined, pre-selected, and/or programmed conditions.

대표청구항 ▼

What is claimed is: 1. A method of controlling addition of an oxidizing compound to a water treatment system comprising:specifying a first set point representing a first desired operating condition of the water treatment system;specifying a second set point and a tolerance representing a second desi

What is claimed is: 1. A method of controlling addition of an oxidizing compound to a water treatment system comprising:specifying a first set point representing a first desired operating condition of the water treatment system;specifying a second set point and a tolerance representing a second desired operating condition of the water treatment system;generating a first input signal corresponding to an oxidation reduction potential of the water treatment system;generating a second input signal corresponding to a concentration of the oxidizing compound in the water treatment system;generating a first output signal based on a difference between the first input signal and the first set point when a difference between the second input signal and the second set point is less than the tolerance; andgenerating a second output signal based on the first input signal and the second set point when the difference between the second input signal and the second set point is greater than the tolerance.