MAGUIRE Weigh Scale Blender 4088, Installation Operation & Maintenance

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In the component 4 column, 1600 and 32000 indicate a flow rate of 50 grams per second. DATA line 3
dispense weight of 0.0 for component 4 and the component 4 is set to 00.0 percent confirming that
component 4 is not dispensing material.
The following information will help you determine what devices are in place on a blender.
Material Dispense Device: Approx. Grams per Second:
½” Auger Feeders, Micro Pulse Valves
0.5 - 02
1” Auger Feeders
06 - 10
Vertical Valves 20 - 40
WSB 100 - Slide Gates 250 - 450
WSB 220, 420 -
3” Round Slide Gates
500 - 900
WSB 240, 260, 440, 460, 940, 960, 1840, 1860 -
2” x 3” Slide Gates
500 - 900
WSB 240, 260, 440, 460, 940, 960, 1840, 1860 -
3” x 6” Slide Gates
3000 - 5000
Regrinds are always lower then naturals. Bulk density will also cause wide variations in flow rates.
ERROR CORRECTIONS: RATE NUMBERS: (DATA line 2)
The RATE numbers are used by the software, each cycle, to calculate material dispense times. They are adjusted
every cycle until flow rates stabilize. When a significant error is detected, the software adjusts the RATE numbers.
The GRAM number is adjusted first. The TIME number (milliseconds) is changed only if the GRAM number goes
below 16,000 or above 32,000 (approximately). In this event both GRAM and TIME numbers are doubled or halved to
bring the GRAM number back to between 16,000 and 32,000.
This serves to keep all numbers as large as possible allowing for the most accurate math, but not so large as to
overflow the registers.
Only the GRAM number changes from cycle to cycle, except under the conditions noted above.
Check the GRAM number for a series of consecutive cycles. If it remains unchanged, then the dispenses are
accurate enough to not trigger error corrections.
The PRC parameter limits adjustments to 10 percent. Do not expect any single GRAM number change larger than 10
percent.
A gradual decrease in the GRAM number indicates a slowing rate, a hopper that is becoming empty for example. A
jump in rate (increased GRAM number) occurs when the hopper is refilled.
If errors are occurring, but the GRAM number is NOT adjusting, check the NC parameter and the MI parameter.
These parameters control whether or not error corrections occur. Both are set and adjusted automatically by the
software. MI is set after each start up, after 10 cycles have run without retries. MI will be set to indicate 50 percent of
normal dispense rate expressed as grams per second.
NC adjusts slowly over extended periods of running. NC indicates, in grams, the upper limit of the error in 60 percent
of the dispenses. A high number usually indicates poor flowing material. Vibration or drifting load cells are other
possibilities.