User's Manual

Operation
36 3A2175A
2. Calibrate HFR
The HFR calibration procedure is a two step process.
The first step, Learn Mode, must be performed when-
ever the pump line is rebuilt or if any other maintenance
is performed that may affect the mechanical tolerances
in the pump line. If the machine does not appear to be
utilizing the full extent of the pump stroke, or if the
machine appears to be contacting the end of the
hydraulic cylinder, follow the Learn Mode procedure.
The Learn Mode procedure will teach the system the
mechanical limits of travel.
Learn Mode Procedure:
a. Navigate to the Calibration screen.
b. Place a waste container below the dispense
valve. The next steps will cause the machine to
dispense material.
c. Press the go right button and then the dis-
pense button . The pump will travel to the
right most extreme position.
d. After the pump stops moving, press the go left
button and then press the dispense
button . The pump will travel to the left most
extreme position.
e. After the pump stops moving, press the con-
tinue button to go on to the next step in the
calibration process or the page back button
to return to the main Calibration screen.
NOTE: During this process, the system learned the
mechanical limits of travel. If the pump did not reach
both the left and right extreme limits for any reason,
repeat the procedure.
If the system is to be used in a Time or Volume Dis-
pense Mode, system calibration is complete after the
Learn Mode procedure described above. However, if the
system is to be used in Weight Dispense mode and the
application requires that the dispense amount be accu-
rate and consistent then the weight calibration proce-
dure below must be followed.
Weight Calibration Procedure:
NOTE: Only perform Weight Calibration procedure if the
system will be run in Weight Dispense mode.
The Weight Calibration procedure must be run with the
system production-ready. Orifice sizes and hose lengths
must be finalized, material should be at temperature and
any conditioning zones that will be on during production
should be turned on. Any variation in system setup
between when this procedure is run and the production
environment will result in a decrease in system dispense
accuracy.
a. Navigate to the Weight Calibration screen .
b. Navigate to the Cal. Setpoint text box then enter
the desired set point (pressure or flow, based on
selected Control Mode).
c. Press .
d. Put a waste container under the dispense valve.
e. Press or the footswitch to start the system
characterization process. The pump will start to
operate at the entered setpoint until it learns the
proper control parameters, then repeat the pro-
cess at 60% of that value. When it is complete,
the icon will change back to .
f. Press again to deactivate.
g. Select the Cal. Point 1 of 2 text box under the
scale graphic.
h. With a waste container under the dispense
valve, press or the footswitch to dispense a
Cal. 1 shot. Discard the dispensed material.