Series 1041 & 1041A Electronic Switchover
The Series 1041A Automatic Switchover system provides safe, reliable switching between two gas (pressure or vacuum) or two liquid (pressure or level) sources assuring an uninterrupted supply of chemical to the application. Automation of all functions (switchover, system initialization, configuration, lamp test, and safety functions) is done with an internal programmable logic controller for operational flexibility, enhanced reliability, and ease of use. If needed, local manual override is conveniently available for operator control to maintain continuous operation.
A unique graphic “mimic” panel simplifies system operation. Included on the graphic panel are four multi-colored status LEDs for each supply source. Red LED indicates valve open and dispensing, green LED indicates valve closed, amber LED indicates full source in stand-by, and white LED indicates empty source. Four front panel switches provide for selection of automatic switchover or manual override, manual valve override, initiation of program functions, and manual reset of the latching alarm circuit.
An automatic switchover system when used for pressure operation, consists of low pressure switches for each source, motorized ball valves, optional manifolds and bypass valves, and three expansion chambers for liquid sources. When used for vacuum operation, the system consists of motorized ball valves, high vacuum switches that signal when the source becomes depleted, and optional bypass valves.
Series 1041 & 1041A Electronic Switchover