Graco HFR Setup page 55

4. Use the following formula to calculate the ∆ column
value.
((Flow Rate x Time) - Average Volume)
Flow Rate
Example 1:
((75cc/sec x 2sec) - 146cc)
75 cc/sec
Example 2:
((75cc/sec x 2sec) - 156cc)
75 cc/sec
5. Enter the calculated value in the ∆ column.
Example 1:
Example 2:
NOTE: Depending on the dispensed volume average,
the ∆ column may be either a positive or negative value.
3A2797ZAA
Volume/Weight Based Example:
A 75 cc/s shot is defined to dispense for 75 cc.
= 0.053 sec
= -0.08 sec
1. Dispense 5 shots into 5 separate containers.
2. Measure the dispensed amount and record the
3. Calculate the average of the 5 shots.
4. Use the following formula to calculate the ∆ column
Appendix B - ADM Setup Screens Overview
data.
Example 3
Dispensed Volume
Shot (cc)
1 72.2
72.4
2
3 72.6
72.8
4
5 72.5
Example 3 = 72.5cc
value.
(Requested Amount - Actual Amount)
Example 3:
(75cc - 72.5cc = 2.5cc)
55