Graco TI12553a, TI12552a Regulator Outlet Pressure, psi MPa, bar, Flow cc/min

5.Return to the Status Screen (see FIG. 85). The sta- tus bar at the bottom of the screen will indicate that Mix Calibration is in progress.

7

Mix Calibration

FIG. 85. Status Screen

6.Trigger the gun and make sure the gun trigger input is high.

7.On the Status Screen (see FIG. 85), the voltage will start at 0 and increase incrementally to 3.3 V. The flow rate will also begin to increase during calibra- tion, but this may not show for the first few voltage increases.

Integrated Flow Control

8.When calibration is complete, the Status Screen will change from Mix Calibration to Mix. The unit should have built a complete table for the flow rate range selected in step 2.

NOTE: If the voltage reached 3.3 V (flow control wide open) but the unit did not reach the top of the selected flow rate range, the delivery system is not providing enough volume. Do one of the following:

•If the volume is acceptable, change the flow rate range accordingly.

•If the volume is not acceptable, increase the deliv- ery pressure. Increasing the pressure may affect your low flow rate setting.

9.De-trigger the gun.

10.Set Manual Override to Standby.

11.To copy the data table to all recipes, see Global FC Data Copy, page 76. This loads a starting point for each recipe, and continuous learning will create a unique data table when the recipe is run.

NOTE: If you want to do a flow calibration for each rec- ipe, do not do a Global FC Data Copy.

Regulator Outlet Pressure, psi (MPa, bar)

30 (0.21, 2.1)

25 (0.17, 1.7)

20 (0.14, 1.4)

15 (0.10, 1.0)

10 (.07, 0.7)

5 (.035, 0.35)

0

0 50 100 150 200 250 300 350

Flow (cc/min)

FIG. 86. Typical Flow Calibration (0-300 cc/min range)

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