RCV Plus™
GAS MIXING SYSTEM
The RCV Plus™ Gas Mixing System is a combination of flow meters specifically designed to monitor and control the ratio of two gases. It consists of an RCV Plus™ (UPC-Marathon Ratio Control Valve) and a FLO-TRONIC Plus™ (UPC-Marathon Flow Meter). The RCV Plus™ utilizes a microprocessor that continuously compares a preset ratio to the real time ratio of the two gas flows as measured by the FLO-TRONIC Plus™ and the ratio control valve itself. Using a stepper motor, the RCV Plus™ continuously adjusts the flow metering needle-valve to precisely maintain the preset gas ratio. The real-time ratio is continuously displayed on the LCD screen of the RCV Plus™. Included in the RCV Plus™ is an optional input for the addition of a trim gas, which is frequently used for process control. Trim gas addition is additive to the ratio. When trim gas is used, the continuously displayed real-time ratio then includes the trim gas addition.
The preset ratio is set remotely or locally at the keypad
For the precision ratio, the valve is controlled with PID parameters
The ratio control valve is available on all Waukee flow meter sizes
The valve utilizes a precision needle and orifice designed to SAE standards
Optional trim gas (4-20mA) input to improve process control
The RCV Plus™ is short-circuit protected and requires an external 24 VDC, 2 Amp supply
Contacts provided for positive shut-off solenoid
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