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Universal, Linear (P050 = 9)
This volume calculation creates a piece-wise linear approximation of the
level/volume curve. This option provides best results if the curve has sharp angles
joining relatively linear sections.
Enter a Level Breakpoint at each point where the level/volume curve bends
sharply (2 minimum).
For combination curves (mostly linear but include 1 or more arcs), ensure
numerous breakpoints are entered along the arc, for best volume calculation
accuracy.
Universal, Curved (P050 = 10)
This volume calculation creates a cubic spline approximation of the level/volume
curve. This option provides best results if the curve is non-linear, and there are no
sharp angles.
Select at least enough breakpoints from the curve to satisfy the following:
•
2 breakpoints very near the minimum level
•
1 breakpoint at the tangent points of each arc
•
1 breakpoint at each arc apex
•
2 breakpoints very near the maximum level
For combination curves, ensure at least 2 breakpoints are entered immediately
before and after any sharp angle (as well as 1 breakpoint exactly at the angle) on
the curve.
Communication Support
The DPS300 provides digital communication to a peripheral device, such as a
computer or PLC, in one of three modes via the communication port, terminals 26
through 32. The mode of communication is established by the configuration of the
connection made at the DPS300, either RS-232, RS-485 or bipolar current loop.
The DPS300 utilizes simplex convention communication protocol. Data messages
are continuously transmitted at regular intervals (no poll is required) at 4800 baud.
All data is transmitted in structured messages of ASCII characters consisting of 8
data bits, no parity, and 1 stop bit.
InterRanger DPS300
clarifier
98
linear calculation
7ML19981BC01
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