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The Automatic Switchover system Series 1041B

Series 1041 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 aintain continuous operation.

A unique graphic “mimic” panel simplifies system operation. Included on the graphic panel are four multi-colored status lights for each supply source. Red light indicates valve open and dispensing, green light indicates valve closed, amber light indicates full source in stand-by, and white light 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.

• Automatic Switchover with Manual Override
• Programmable Logic Controller
• Graphic “Mimic” Panel
• Field Configurable
• Flashing Status/Warning LEDS 
• Safety Interlocks
• Latching Alarm Circuit
• Automatic Remote Shutdown
• Remote Indication of Source Depletion and Valve Status
• NEMA 4X Enclosure