Section Parameters - Accusonic 8510+ series Reference Manual

Section Parameters

These parameters describe each conduit and the method of flow computation. Separate lists are required
for each section. For all unused sections, the parameters Path Enable and Volume Init Value must be
deselected to turn the section off. All other parameters for unused sections can be ignored; their values are
not used by the system. All lengths and elevations are limited to five figures (Note: only 2 decimal places
are displayed). Parameters with the letters C after their names are used only in Open Channel or
Compound mode.
PATH ENABLE
LEVEL ENABLE
PIPE AREA
MIN GOOD PATHS
LOW FLOW CUTOFF
negative" edge of the received signal.
Set to 2, "ENVELOPE" to force the flowmeter to use only detection of the
"envelope" of the received signal.
The path enable function can be found in the section parameters page 1
screen.
Any given path can be selected to work in up to 5 different sections.
Switch between sections by selecting the desired section number.
To select or deselect any given path for any given section, press the desired
path number.
A gray tint will show that a path is assigned to a given section, a blue tint will
show that a path is not assigned to a given section.
C
The level enable function can be found in the section parameters page 2
screen.
Any given level input can be selected to work in up to 5 different sections. To
switch between sections, select the desired section number.
To select or deselect any given level input for any given section, press the
desired level input number.
A gray tint will show that a level input is assigned to a given section, a blue tint
will show that a level input is not assigned to a given section.
For custom level configurations, the table below can be used to calculate the
decimal value for any configuration.
Note: A particular level input can be allocated to one or more sections.
"Pipe" mode only.
The cross-section area of the conduit in ft
This parameter is ignored in "Open Channel" or "Compound" mode.
"Pipe" mode only.
The minimum number of good paths which must be present to calculate flow.
The contribution to the Flow from any failed paths can be provided by the
Path Substitution routine, providing that the "Learn path Ratios" routine has
been correctly implemented. See Chapter 3, Pipe Mode for more information.
If the "Learn" routine cannot be implemented, because at the time of
commissioning there is insufficient flow, this parameter must be set equal to
the number of paths installed.
If set to number of paths installed, the flow will cease to be computed and the
section fail, if any path fails.
Defines the range of flows which the flowmeter will declare to be zero.
If set to 0.00, the flowmeter will be bi-directional, with no minimum flow.
If set to a + value, all negative flows and positive flows up to the set value will
be declared to be zero.
If set to a  value, all positive flows and negative flows down to the set value
will be declared to be zero.
User Defined Parameters
2 2
or m .
7-3