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The Type 146C vacuum gauge controller has the ability to power from one to four（4）Baratrons of different configurations via its plug-in function cards一or it can operate any combination of up to four （4） Baratrons, mass flow controllers, high-vacuum gauges, indirect vacuum gauges, and pressure control valves all from one instrument. Its large LCD display provides a high-resolution digital display of the pressure or vacuum, and it can accommodate Baratron capacitance manometers with a total current draw of up to 2.0 amps at 115VDC input power. Two （2） electro-mechanical relays are standard in the base product and can be assigned to any active channel in the controller. Additional cards can be ordered that can add up to six （6） more such relays for complex system management. It also has an RS232C digital interface as standard, and can be operated on nearly source of AC power worldwide.