Fast, accurate control for semi-automatic drum filling systems.
Two speed net weight filling control for top fill or substance fill drum fillers
The FWC-788 Controller offers full electronic control for the standard Fuller filling units. The controller utilizes a Cardinal 788 instrument enclosed in a NEMA-4, painted enclosure with a pneumatic interface for operating the lance assemblies. The 788 offers multiple product filling for either foaming or non-foaming products with many features and safety interlocks included.
SPECIFICATIONS Display: | Large (4.6" W x 3.4" H / 117 mm W x 86 mm H - 320 x 240 resolution) back-lit LCD graphical display | Keyboard: | 43 key alphanumeric keyboard
101 PC keyboard interface | Internal Resolution: | 400,000 divisions | Display Resolution: | 10,000 divisions (commercial)
100,000 divisions maximum (non-commercial) | Character Height: | Selectable character sizes from .25" to 1.2" (6 mm to 30 mm) | Divisions Value: | 1 to 9 x 10, 1, 0.1, 0.01, 0.001, 0.0001 | Sample Rate: | 1 to 60 samples per second, selectable | Auto Zero Range: | 0, 0.5, or 1 through 9 divisions | Excitation: | 10.75 VDC | Sensitivity: | .5 µV/d (1.5 µV/d OIML R76) |
STANDARD FEATURES
 | • NEMA-4 mild steel, watertight enclosure 36" H x 30" W x 12" D (91 cm x 76 cm x 30 cm) | • Full size industrial operators for ease of operation | • Automatic tare | • Two speed net weight filling | • Empty drum tolerance checking | • Filled drum tolerance checking | • Error alarms for incorrect weight, crash error, and mid limit not found | • Drum weight printing | • Multiple products memories |
SEQUENCE OF OPERATION
(Subsurface System)
 | • Operator selects automatic position on controller | • Operator places an empty drum onto scale | • Operator presses start button | • Empty drum tolerance is checked | • Scale tares to zero | • Lance lowers into drum
(if lance hits the top of the drum and the crash weight is exceeded, the lance raises and ERROR is shown on the display - to try again, the operator presses RESET and then START) | • The foot valve opens when the lance reaches the bottom of the drum | • Fill starts at slow fill | • Fill switches to fast fill when the "fast fill weight" is reached | • The lance starts to raise when the "track weight" is exceeded | • Fill switches to slow fill at the "dribble point" | • At set point, the foot valve closes | • Fill tolerance is checked, and if under weight, additional product is added | • Lance raises to the top position | • Drum weight is printed (if enabled) | • Drum is removed |
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