Overview
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Overview
Usage
The Graco ProMix 2KS is an electronic two-component paint proportioner. It can blend most two-component solvent
and waterborne epoxy, polyurethane, and acid-catalyzed paints. It is not for use with “quick-setting” paints (those
with a potlife of less than 15 minutes).
•
Can proportion at ratios from 0.1:1 to 50:1 in 0.1
increments with the wall mount fluid station.
•
Has user selectable ratio assurance and can main-
tain up to +/-1% accuracy, depending on materials
and operating conditions.
•
Models are available to operate air spray or
air-assisted systems with a capacity of up to 3800
cc/min.
•
Color change options are available for low pressure
(300 psi [2.1 MPa, 21 bar]) air spray and high pres-
sure (3000 psi [21 MPa, 210 bar]) systems with up
to 30 color change valves and up to 4 catalyst
change valves.
NOTE:
Optional accessories are available for in
field installation to achieve 30 colors.
Component Identification and Definition
See Table 1, F
IG
. 2, and F
IG
. 3 for the system components.
Table 1: Component Descriptions
Component
Description
EasyKey (EK)
Used to set up, display, operate, and monitor the system. The EasyKey accepts 85-250
VAC, 50/60 Hz line power and converts that power to acceptable low voltage and optical
signals used by other system components.
Booth Control (BC)
Used by the operator for daily painting functions including: choosing recipes, initiating job
complete, reading/clearing alarms, and placing the system in Standby, Mix, or Purge
mode. It is typically mounted inside the booth or near the painter.
Fluid Station (ST)
Includes air control solenoids, flow switches, and mountings for the fluid flow meters and
the fluid manifold assembly. Its control board manages all proportioning functions.
Fluid Manifold (FM)
•
Pneumatically Operated Dose Valves
for component A and B
•
Purge Valves
for solvent and air purge
•
Sampling Valves
for calibrating the flow meters and performing ratio checks
•
Shutoff Valves
for component A and B to close their fluid passages to the mix mani-
fold, to allow for accurate calibration and ratio checks
•
Mix Manifold
, which includes the fluid integrator and static mixer.
Fluid Integrator
is the chamber where component A and B align at the
selected ratio and begin to mix.
Static Mixer
has 24 elements to uniformly blend the materials downstream
of the fluid integrator.
