Siemens HydroRanger 200 Instruction Manual page 176

Related
The HydroRanger 200 is pre-programmed for common PMD flow calculations. If your
PMD is not listed, select the appropriate Universal Flow Calculation.
Associated parameters Max Head (P603), Max Flow (P604), and Min Head (P605) may be
scroll accessed. If Operation is not set for OCM (P001 = 6), this value is preset to 0. If
Operation is set for OCM, it is preset to 1.
P601 Flow Exponent [6 relay model]
The Exponent for the flow calculation formula.
Primary Index
Values
Altered By
Related
Use this parameter if the Primary Measuring Device (P600) is set to 1 (exponential). It
creates an exponential curve with end points set by Max Head (P603) and Zero Head
(P604) and with the curve based on the specified exponent.
If P601 = 1, the flow characteristic is a straight line
Max. Flow
(P604)
Zero Flow
Use the exponent specified by the PMD manufacturer, if available, or the sample value
given below.
Page 166
• P603 Maximum Head
• P604 Maximum Flow
• P605 Zero Head
• P610 Head Breakpoints
• P611 Breakpoint
Single Point Model
Global
Range: -999 to 9999
Preset: 1.55
• P600 Primary Measuring Device
• P603 Maximum Head
• P604 Maximum Flow
• P605 Zero Head
HydroRanger 200 – INSTRUCTION MANUAL
Dual
Transducer
A Word on Exponents
The exponential equation is
P601
Q = KH
Where:
Q = flow
K = internal constant
H = head
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