VortiBlend One-Touch Dose Control
The
Chem-Flow PDC 1 microprocessor control center manages all unit
functionality automatically. This fully customizable controller displays
system status and annotates alarm conditions such as loss of polymer or
water flow.
One glance at the eight digit, alphanumeric LED
operating system display shows real-time concentration and feed rate. It
can be operated remotely with a 4-20mA or a simple dry contact signal.
The desired polymer concentration strength is selected via three
touch pads and the system will deliver it precisely. The polymer rate
calibration feature and the adjustable automatic flushing cycle assures
hassle free operation and reliability over a broad range of products and
applications.
The VortiBlend unit is controlled through an
on-off-remote circuit via the PDC-1 controller. In the remote switch
position, the unit can accept a system enabled signal.
The
VortiBlend unit is manually controlled in the on position.
The
PDC-1 paces the polymer metering pump based operator programmed data or
based on a 4-20mA input signal.
Local operation allows the
operator to input a concentration set-point in the PDC-1 controller
while remote operation allows the operator to adjust the concentration
set-point via a 4-20mA input signal.
The PDC-1 will compute a
ratio based on concentration set-point and dilution flow provided from
the dilution water flow sensor and generates a signal to pace the
polymer metering pump based on these parameters.
The PDC-1
controller can easily be configured to change to the pump output
capacity as dilution water supply changes.
The PDC-1
incorporates a low flow dilution set-point that will disable the polymer
metering pump upon low flow and provides a local fault condition
indicator.
A remote fault condition output contact provides a
low flow condition or a concentration alarm.
