Ransburg RCS 2 Ratio Control System - Manual (Page 42)

Maximum Flow
The allowable range of values for this parameter
is any integer from 0 cc/min to 10,000 cc/min.
When using an analog input to control the target
flow rate, this is the flow rate that the controller will
try to maintain if the maximum voltage (10 VDC)
or current (20 mA) is applied to the analog input.
Minimum Flow
The allowable range of values for this parameter
is any integer from 0 cc/min to 10,000 cc/min.
When using an analog input to control the target
flow rate, this is the flow rate that the controller
will try to maintain if the minimum voltage (0 VDC)
or current (4 mA) is applied to the analog input.
Bar Graph Limit
The allowable range of values for this parameter
is any integer from 0 cc/min to 10,000 cc/min.
This is the flow rate indicated by top of the flow rate
bar-graphs on the Main Screen and determines
the maximum value displayed on the plot-graphs.
Pot-Life Timer
The allowable range of values for this parameter
is any integer from 0 min. to 1000 min. This is
the amount of time that mixed plural component
material is allowed to remain in the fluid stream
after being mixed before a flush-request output
and error is issued by the controller.
Feather Pressure
The allowable range of values for this parameter
is any integer value from 0 psi to 255 psi.
This value is the pressure that will be maintained
at the outlet of the pump (or pumps) when a gun
is configured as a manual mode gun and the op-
er-ator is feathering the spray gun. (See Appendix
H for more details on Feather Modes.)
Fill Volume
This is the amount of material that the user wish-
es to flow through the pump(s) when the gun is
placed in the volume fill mode.
The following 8 parameters have a master
channel component and a slave channel com-
ponent. (Note the master and slave columns on
the screen.) Both values must be programmed
for plural component materials.
Pressure Pot Capacity
The allowable range of values for this parameter
is any value from 0.000 liters to 255.000 liters.
This value is simply the volume of material that
the pressure pot will be filled with each time it is
refilled. There is a pot reset button on the Job
Totals screen (F9) that must be actuated every
time a pot is filled.
Delta Pressure
The allowable range of values for this parameter
is any integer value from 0 psi to 20 psi.
This is the target differential pressure that the
controller tries to maintain across the pump.
Keeping the differential pressure across the
pump to a minimum is essential, especially with
low-viscosity materials. If the outbound pressure
of the pump is significantly higher than the inbound
pressure and the pump has any significant wear,
it is possible for the gear teeth to “slip by” a small
volume of material and less material will be de-
livered per revolution of the pump. If the inbound
pressure is significantly higher than the outbound
pressure, then material can “blow by” the pump
and more material than desired will be delivered.
The pump should essentially act as a metering
device as opposed to a pumping device.
Minimum Inlet Fluid Pressure
The allowable range of values for this parameter
is any integer value from 0 psi to 200 psi.
This is the target pressure that the controller tries
to maintain on the inlet of the pump as long as
the minimum inlet control pressure setting is not
greater than this setting.
RCS-2 User Manual - Operation
39 LN-9407-00.2
Ransburg