Siemens multiranger 200 - Safety Guidelines; General Safety Precautions

MultiRanger 200 and Flow Configuration AG040303 3 of 10
APPLICATION GUIDE
Section 1.1 Exponential Device Flow Calculation Equation
MultiRanger 200 calculates flow rate (Q) based on Ratiometric calculation method using the following exponential equation:
Q = Q
max
(H/H
max
)
X
Value Table
Q Flow rate calculated and displayed by MultiRanger 200. The units will not be displayed and user must
know the measurement units (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.
x Exponent as configured in P601. Its value is provided by the user. If the value is taken from the
MultiRanger 200 manual, it should be verified by the user or with the manufacturer documentation.
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.
Section 1.2 Exponential Device Flow Configuration Table
Set parameters P601, P603, P604, and P606 to calculated values.
Parameter # Description Configuration Status
P600 Set to 1 (exponential device) Must be configured.
P601 Enter the value of exponent x 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.
P605 Zero Head Off-set Optional, configure only when the actual zero is above channel
bottom.
P607 Flow rate decimal Optional, configured to display the flow rate (Q). Factory set to 2.
P620 Low flow cut-off Optional, set to avoid totalizing at flows below this set level.
P621 Auto zero head calibration Optional, configure only if head displayed has constant off-set.