P-35 enter ".75", tank dimension A
P-36 enter "5", tank dimension L
P-37 enter ".406", convert display, x.406 (automatically shows the
levels in %). As 100% full = 40.6 cubic metres,
a conversion factor of .406 must be entered.
actual volume = conversion factor
percentage
P-68 enter "10", fill damping 10 m/min
40.6 cu. m = 116 min total fill time
0.35 cu. m / min
3 m = 0.025 m / min average fill rate
116 min
However, because of the tank’s shape, the top
and bottom levels will fill faster than the middle
section. Therefore the actual P-68 value should
be greater than the average value. Typically, the
factory set damping of "10" can be used.
P-69 enter "10", empty damping-same as fill damping rate
P-74 enter "1", fail-safe high
P-75 enter ".5", fail-safe timer, 30 sec.
to re-enter run mode
Custom Design Tanks
Where the tank design does not match one of the eight common tank shapes, P-34
may be programmed for level versus volume characterization.
Characterization is achieved by entering the level ( H parameters ) and corresponding
volume ( F parameters ) for the elevations where there is a change in the tank profile.
Where curves are involved, the more breakpoints that are defined, the more
accurate will be the volume of measurement. A maximum of eleven breakpoints can
be defined.
Level data is entered in the linear units selected ( P-1 ) and volume data is entered
in the tank desired volumetric units. Both of these are referenced to the bottom of
the tank.
RUN
CAL
PL-443 6 – 16
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