Hardy HI 1756-nDF - Manual (Page 41)

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Chapter 4
Parameter 23 Stop refill weight
Weight at which a refill cycle will automatically stop
Value must be greater than 0.0 (default) and equal to or less than the stop refill weight
4000.0 (default)
Parameter 24 Capacity
When the gross weight is greater than the programmed capacity value the
ERROROVERCAPACITY status bit is set. This status bit is reset whenever the gross
weight is below programmed capacity value.
Parameter 25 Flow rate time base
The Time Base is the length of time in seconds between two weight readings that are
subtracted to determine the initial flow rate. By increasing the time base, you increase the
time between weight readings. This allows more material to be dispensed during the time
base period. Low flow rates require a longer time base than high flow rates. The
controller measures weight to about 1 part in 10,000. The formula below provides a
minimum.
TIME BASE > (SCALE CAPACITY/10000)/LOW SETPOINT (units per sec.)
SCALE CAPACITY/5000 = determines minimum weight increment
Parameter 26 Reserved.
Parameter 27 variation
Sets the peak to peak variance value below which samples are filtered.
Parameter 28 capture
Sets the peak to peak variance value used to select which filter is used to provide the
output value.
Parameter 29 start wait
Period of time, from the start of the fill cycle, during which the flow rate is not
calculated.
Parameter 30 Update Time
Period of time, after the target weight has been reached before the measured weight value
is taken.
Parameter 31 stable
Sets the maximum peak to peak percentage difference in flow rate, once the “stable wait’
period is reached. Values outside of this range reset the calculation.