Graco Fluid Automation 633 Operation page 31

Screen Identification
Warning and Alarms Screens
Refer to the Calibration section of the manual for details on calibrating the pressure transducers and the position sen-
sor of the pump.
If equipped with a material level sensor on the color reservoir, the warning will indicate that the material level is low. If
the warning has never been generated before the machine runs out of colorant, the low level sensor may need to be
recalibrated.
This event may be configured as an Alert or a Warning on the Alarm Setting Screen. A warning will allow the machine
to keep dispensing; an alert will stop and prevent dispensing until the tank is filled.
Recalibration: With the material empty, press the "Empty" switch on the low level sensor. Refer to the low level sen-
sor manual that was provided with the machine to ensure the correct switch is pressed.
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