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Configuring the PrecisionFlo Module
Setting Up to Dispense Test Material
To set up for dispensing test material, perform the
following tasks:
1.
Supply material pressure to the PrecisionFlo
module. Adequate pressure should be available to
sustain the maximum flow rate plus 400 psi.
2.
Change the Kp and Kd values on the control
pendant. See the procedure for Using the Con-
trol Pendant to Modify Kp and Kd on page 33.
Use the values described in Table 3 as starting
points for entering values for both Kp and Kd.
Note, however, that settings that are appropriate
for your configuration may be different from those
in the table, depending on the characteristics of
your material and dispensing system.
Table 3 — Initial Settings for Fine Tuning Kp and
Kd Values
Viscosity Range
(in cps)
Typical
Application
Kp
Kd
40,000 – 80,000
Paint-shop sealer
100
1000
80,000 – 150,000
Hemflange struc-
tural adhesive
700
3000
150,000 +
Body-shop sealer
3.
Calibrate the material flow in pressure mode.
a.
On the control pendant:
HOME
SETUP
FLOW CALIBRATION
You see:
––FLOW CALIBRATION––
Enter Maximum Operating
Flow Rate
00cc/min
b.
Make sure the flow meter has been discon-
nected.
c.
At the prompt, key in 0, then press
[ENTER].
You see:
––WARNING!!!––
Material Will Be
Dispensed, Press
F2 To Continue.
d.
Place the dispensing device over a waste
container, then press
[F2]
.
You see:
––FLOW CALIBRATION––
Working, Please Wait
Outlet= 00 psi
When the PrecisionFlo module determines
there is no flow meter connected, you see:
––No Flowmeter!!!!––
Max Outlet
Operating Pressure=
1500 psi
23
(23) is the maximum operating pressure en-
tered the last time calibration was performed
without the flow meter.
e.
Determine the new operating pressure:
Typical Application
psi
Paint-Shop sealer
1000
Hemflange structural adhesive
2000
f.
Key in the new operating pressure and press
[ENTER]
.
For more information, see the Setting Flow
Calibration Procedure on page 35.
4.
If you are using an oscilloscope, go to the proce-
dure for Determining Kp and Kd Using an
Oscilloscope page . If you are not using an
oscilloscope, go to the next procedure, Determin-
ing Kp and Kd Visually.
