Siemens multiranger 200 - Specifications; Power Specifications; Installation Conditions; Output Specifications

MultiRanger 200 and Flow Configuration AG040303 4 of 10
APPLICATION GUIDE
Section 2.0 Palmer-Bowlus Flume (P600 = 2)
Section 2.1 Palmer-Bowlus Flume Flow Calculation Equation
MultiRanger 200 calculates flow rate (Q) based on Ratiometric calculation method using the following equation;
Q = Q
max
x f(H/ H
max
)/f(H
max
/ D)
Value Table
Q Flow rate calculated and displayed by MultiRanger 200. The units will not be displayed and user
must know the measurement units used (liters/sec. or gallons/min. etc.).
Q
max
Maximum flow (at maximum head H
max
) as configured in P604. Its value is user provided, and is
shown as a standalone number with no units indicated. User must know measurement units used.
For example, if maximum flow is 1000 LPS then P604 = 1000 and P606 = seconds
H
max
Maximum Head H
max
as configured in P603. Its value is provided by the user. Generally the same
value as span configured in P007. The units are defined in P005.
H Head measured by the ultrasonic head, or any other level measuring device, mounted upstream
from the open channel measuring device. IMPORTANT: set in the same units selected in P005.
D Flume width as configured in P602 in the units defined in P005. This Information will be available
from the user or by referring to the flume manufacturer’s published discharge tables (e.g. for 30”
Palmer Bowlus Flume from Plasti-Fab set P602 to 30 and P005 to inches).
Section 2.2 Palmer-Bowlus Flume Configuration Table
Parameter # Description Configuration Priority
P600 Set to 2 (Palmer-Bowlus Flume). Must be configured.
P602 Enter the value D
,
the listed flume width. Must be configured.
P603 Enter the value of H
max.
Must be configured.
P604 Enter the value of Q
max.
Must be configured.
P605 Zero Head Off-set. The flume is installed inside the
pipe and its zero reference is above the zero
reference of the pipe, where transducer monitors
the head.
Must be configured.
P606 Time units Must be configured.
P607 Flow rate decimal Optional, configured to display the flow rate
(Q). Factory set to 2.
P620 Low flow cut-off Optional, to avoid totalizing at flows below
this set level.
P621 Auto zero head calibration Optional, configured if displayed head has
constant off-set.