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PVA Portal Manual Revision I / Janua ry 2022 Page 55 of 106 11. Rep eat this proc edure at lea st three times then average the r esults. 12. Open the Main Program in a text editor such as Windows® Not ePad. 13. Sea rch f…

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PVA Portal Manual
Revision I / January 2022
8.4.8.5 Flow Monitor Calibration
The Flow Monitor on the workcell measures the amount of material that moves through
the material supply line before it splits to supply individual valves. It does not control the
process, but reports deviations from the set values. Both the necessary material volume
and the permitted deviation are determined by the operator. The flow monitor calibration
should be examined once a month or if changes are made to the fluid delivery system.
The following procedure is to calibrate a single flow monitor, if the specific gravity of the
dispensed material is known. This procedure would calibrate the A flow monitor, to
calibrate the B, C, and D monitors replace the variable DEZ, with DEW, DEE, and DEF as well
as FCA_CAL, with FCB_CAL, FCC_CAL, and FCD_CAL, respectively. Refer to Table 1 for
more information on the variables relating to each flow monitor.
1. Login to Portal.
2. Ensure the workcell is in Manual mode.
3. Select the Terminal tab on the right side of the Portal screen to open the terminal.
4. Type DEZ=0 (for first flow monitor only) in the top of the terminal screen and select
the “Enter” button on the keyboard. This resets the flow monitor encoder to zero.
5. Weigh an empty purge cup and record the weight or zero the scale with the empty
purge cup on it.
6. Purge a quantity of material into the purge cup.
7. Type DEZ=? into the terminal and select the “Enter” button on the keyboard. A
number will return (e.g., 50 counts per cc dispensed). The factory set value is 1000
count/cc. If zeros or incorrect data are returned, type MG_DEZ=?
8. Weigh the dispensed quantity of material in grams. If necessary, subtract the weight
of the cup from this value.
9. To find the material volume in cc, use the equation below:
Grams of material/specific gravity = cc
e.g.: 0.500 g/0.96 = 0.5208 cc
10. Use this value (in cc) to find the correct number of counts per cc dispensed.
Counts/cc = counts per cc
e.g.: 25 counts/0.5208 cc = 48.003 counts per cc
PVA Portal Manual
Revision I / January 2022
11. Repeat this procedure at least three times then average the results.
12. Open the Main Program in a text editor such as Windows® NotePad.
13. Search for the variable: FCA_CAL=. This will be in the section titled: REM !!!!
Machine-Specific Information!!!!
14. Type in the new value for FCA_CAL= (e.g.: FCA_CAL=48.003).
15. Download the modified main program and test changes.
Flow Monitor
Variables
A
DEZ
FCA_CAL
B
DEW
FCB_CAL
C
DEE
FCC_CAL
D
DEF
FCD_CAL
Table 1: Flow Monitor Variables
8.4.9 Needle Calibration
If the system is equipped with the Needle Calibration Sensor Block, refer to Figure 37.
Needle Calibration can be set to run in Auto Cycle. A list of tools will be listed along with
the option to enable or disable this function. The check frequency is the number of cycles
run per check. The allowable deviation can be set for the X, Y, and Z axis in mm.
Figure 51: Enable or Disable Tools for Needle Calibration
PVA Portal Manual
Revision I / January 2022
8.4.10 Program Select
Program Select is an Auto Cycle option to enable or disable the Barcode Scanner. When
enabled, the program will be selected based on the barcode read.
Note: Not all systems will have this option.
Figure 52: Enable or Disable the Barcode Scanner in Program Select