| The 8701 pH controller is microprocessor-based for pH measure-
ment and control in industrial processes. Its control features: versatile and flexible control configuration; the characterization of pH value matching the process-titra-tion curve. The field-selectable types of control output: pulse width-adjusting type for use of solenoid valve, current/voltage-adjusting type for use of electric actuator driving the feeder, etc. Special lime feeder can avoid the clogging frequently encountered under the conditions of using valve or pipe. |