Rice Lake 920i FlexWeigh Systems - 104 - Manual (Page 22)

18 System 104 Loss-in Weight Dispensing Controls
4.3 Dispensing Material from a Scale
Use the following steps to dispense material from a scale.
Press the Start button on the unit. The system verifies if:
• E-Stop is pulled out
• A valid target weight is entered
The system does the following during this process.
• Increments the consecutive number by one
• Tares the scale to zero (net mode)
The system begins dispensing either of three speeds while the 920i screen displays real time sequence progress.
The displayed net weight will continue showing more negative as weight is dispensed, until the target weight
presets are achieved.
Figure 4-11. Fast Dispense
The three dispensing speeds include:
• Single speed dispensing - The system turns on fast dispense until the target weight/preact weight is satisfied.
• Parallel speed dispensing - Turns on the fast dispense and slow dispense until the dribble weight is satisfied.
The system then turns off the fast dispense and leaves the slow dispense on until the target weight/preact
weight is satisfied.
• Dual speed dispensing - Turns on the fast dispense until the dribble weight is satisfied. The system turns on
the slow dispense until the target weight/preact weight is satisfied.
If during the dispensing cycle the system determines that the material supply on the scale has run empty, the system
will pause the automatic process and prompt for a resupply of material. The current dispensing process can resume
from where it left off by pressing
Start .
The system does the following when the target/preact is reached.
• Turns off the output based on the dispensing mode
• Updates the subtotal weight and number of dispenses
• Updates the total and number of dispenses
• Turns on the Dispense Complete output
The system delays for the Delay After Dispense time before it exits the sequence and ready for the next dispense.
250
Target Dribble Preact Dispensed
Consec. # Subtotal Total
100.0 Lb 75 0.0 500 Lb
2 120 Lb 3200 Lb
06/02/2011 10:35AM SCALE #1
SCALE
#1
Gross
Lb
Actual Gross
150 Lb
Fast Dispense