Chapter 5: Operation
The RPV can be controlled by one of three different controls. See Chapter 4: Installation for installation instructions.
•Knob box — Used with Autoloader hopper loaders. This control is supplied with Model
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•Hopper loader control — Used with 9953 and 9963 hopper loaders. The existing control box for these models has the circuitry to control model
5-1 Knob Box Operation
Knob box controls are used with Autoload Hopper Loaders and are supplied with the
Ratio Knob
The knob labeled RATIO controls the relative delivery proportion of Material A to Material B, typically virgin and regrind. This knob may be adjusted in a range from all Material A and no Material B to no Material A and all Material B.
These ratios are approximate. For a known proportion, use the weight test procedure in Section
Cycle Seconds Knob
The knob labeled CYCLE SECONDS controls the total length of each proportioning cycle. This knob may be adjusted from zero (0) to twenty (20) seconds to
For example, if the cycle time is 20 seconds and the Ratio knob is at 50/50, Material A will convey for 10 seconds and Material B will convey for 10 seconds. The cycle repeats automatically.
Power Switch and Indicator
The power toggle switch can be used to turn the Autoload Hopper Loader On and Off if the power switch on the Autoloader is ON. The POWER ON light is illuminated when power is applied. The knob box is supplied with twelve (12) feet of cable and can serve as a remote On/Off switch.
Note: The knob box and Autoloader hopper loader power switches must both be ON for the loader to operate.
Remote Proportioning Valve | Chapter 5: Operation | 21 of 30 |