.~.~ Controlling process in response to stream constituent or reactant concentration
DEFINITION
Classification: 210/614
Controlling process in response to stream constituent or reactant concentration:
(under subclass 601) Process in which a probe or sensor conveys to an actuating means a change in or the existence of a predetermined parameter, of a condition in the liquid being treated and the actuating means varies, ceases, or initiates at least one element of a treatment.
(1) Note. The sensing of the condition may be prior to or
sequent to the treatment and includes the condition of either influent or effluent.
(2) Note. The operation is "automatic" and requires action by the apparatus and does not include use of for example an overflow standpipe or a human attendant.
SEE OR SEARCH CLASS
364, Electrical Computers and Data Processing Systems, especially
528.01+, for computerized control of a chemical process.
