Page 192
P702 Calculation
Select the required
calculation method
, both will give the same answer, but
the difference is the information required to complete the calculation. For
ratiometric it is normally sufficient to know the maximum flow at the
maximum head. Choose between:
1 = Absolute
2 = Ratiometric (Default)
P703 Minimum Head
This parameter is used to enter the
distance
, above empty, that represents
zero head
and
flow
. This feature is used in Primary Measuring Devices
where the zero reference is at a higher level than the channel bottom, at the
point of measure. Enter distance in
Measurement Units P104
.
P704 Maximum Head
Enter the
head
value that represents
maximum flow,
enter in
Measurement
Units
P104
.
Note any change to the value of this parameter will be reflected in P106
(Span) and vice versa.
P705 Maximum Flow
When
P702
=
2 Ratiometric
enter the
flow rate
value that occurs at
maximum head (P704)
, enter in
volume units
(
P706
) per
time units
(
P707
).
When
P702 = 1 Absolute
, and all relevant flow parameters have been
entered, the
maximum flow
that occurs
at maximum head P704
will be
calculated, after the unit is returned to RUN mode, and displayed in this
parameter in
volume units
(
P706
) per
time units
(
P707
).
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