Graco ProMix II, Operating Manual

Page: 48 / 58

Purging
◆
Purging Sampling Valves and Tubes
48 310633C
Purging Sampling Valves and Tubes
Follow this procedure after meter calibration.
1.
Press Standby on the Operator Station.
2.
4.
Route the sampling tubes into a grounded waste
container.
5.
On a single color system, attach a solvent supply
line to Flow Meter A inlet (5A).
6.
On the EasyKey™ Display, press Setup key to
access setup screens.
8.
To avoid splashing, slowly open the sampling
valves (2A, 2B) and dispense solvent until the
valves and tubes are clean.
9.
Close sampling valves.
10.
Fully open both fluid shutoff valves (1A, 1B).
11.
Follow Pressure Relief Procedure, page 38.
12.
On a single color system, reconnect component
A fluid supply line to flow meter A.
WARNING
Follow Pressure Relief Procedure, page 38.
3.
Close both fluid shutoff valves (1A, 1B) and sam-
pling valves (2A, 2B).
1B
1A
2B
2A
C
5A
7.
Press key to select the Calibrate screen. Press
key and select Purge from the drop-down list.
Press
.
Dispense A, solvent purge valve (B side), and color
change solvent valves (if used) will open.
The solvent valve(s) close automatically after 2
minutes or when Abort is selected on the screen.
Select Abort on Calibration screen to avoid acci-
dentally restarting purge sequence.
Purge
Purge
Purge
Start