Siemens multiranger 200 - Wiring Guide; Terminal Board Connections; Transducer Wiring

MultiRanger 200 and Flow Configuration AG040303 7 of 10
APPLICATION GUIDE
Parameter # Description Configuration Priority
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
Section 5.0 Universal Curved Flow Calculation (P600 = 5)
The MultiRanger calculates the flow rate using the same method as the linear flow calculations. It differs by applying a curved
fitting between the discrete points.
Section 5.1 Universal Curved Flow Calculation Equation
The MultiRanger 200 calculates flow rate (Q) based on Ratiometric calculation method using the following equation:
Q = Q
max
x f(H)/f(H
max
)
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.
f(H) Calculated by MultiRanger 200 using polynomial function
Section 5.2 Universal Curved Flow Calculation Configuration Table
Parameter # Description Configuration Priority
P600 Set to 5 (universal curved flow calculation) Must be configured.
P603 Enter the value of H
max.
Must be configured.
P604 Enter the value of Q
max.
Must be configured.
P606 Time units Must be configured.
P610
(Secondary
Indices 1 – 32
max)
Enter sequentially from lowest head value in break point 1
(generally 0) and gradually increasing up to maximum 32
head break points. The units are as set in P005.
Must be configured.
P611
(Secondary
Indices 1 – 32
max)
Sequentially enter corresponding flow values for above
head break points starting form lowest flow value in
break point 1 (generally 0) and gradually increasing up to
maximum 32 flow break points. The time units are as set
in P606.
Must be configured.
P605 Zero Head Off-set Configured only when the actual zero
is above channel zero