Endress+Hauser RIA452 Betriebsanleitung Seite 90

Commissioning
Function (menu item)
Calc. flow
Dim. input
Dec. flow
Dim. flow
Dec. point
Alpha
Beta
Gamma
C
Flumes weir
90
Parameter setting
No
Curve
Formula
mm
inch
XXXXX
XXXX.X
XXX.XX
XX.XXX
X.XXXX
m3/s, l/s, hl/s, igal/s, usgal/s,
barrels/s, inch3/s, ft3/s, Usmgal/
s, Ml/s, m3/smin, l/min, hl/min,
igal/min, usgal/min, barrels/min,
inch3/min, ft3/min, Usmgal/
min, Ml/min, m3/h, l/h, hl/h,
igal/h, usgal/h, barrels/h, inch3/
h, ft3/h, Usmgal/h, Ml/h
XXXXX
XXXX.X
XXX.XX
XX.XXX
X.XXXX
-99.999999
-99.999999
-99.999999
-100
Kha Venturi
ISO Venturi
BST Venturi
Parshall
Palmer-Bow
Rect. WTO
Rect WThr
NFXRectWTO
NFXRectWThr
Trap.W TO
V-weir
BST V-weir
NFX V-weir
Description
For selecting a method of calculating the total flow based on the channel type or
by means of a formula using the analog input signal (e.g. level signal)
• No = no integration
• Curve = flow calculated with channel type.
If "Curve" is selected, the menu only displays possible channel types for config-
uration (e.g. Venturi channels, Parshall channels, weirs etc.)
• Formula = flow calculated using a formula
If "Formula" is selected, the menu only displays possible configuration param-
eters for entering the formula (Alpha, Beta, Gamma, C).
Here, the flow is calculated using the following formula:
Dimension of the channel size
Decimal point for display
Dimension of linearized value
• l = liter
• hl = hectoliter
3
• m = cubic meter
• Ml = megaliter
• USgal = US gallon
• USKgal = US kilogallon
• USMgal = US megagallon
• USbl = US barrel
• igal = imperial gallon
• ibl = imperial barrel
• inch = inch
• ft = feet
Decimal point for formula
(only if formula-based flow calculation is selected)
Flow rate exponent (see Calc.flow)
Flow rate exponent (see Calc.flow)
Weighting factor
Scaling constant C (see Calc.flow)
Kha-Venturi = Khafagi-Venturi channels
ISO Venturi = ISO-Venturi channels
BST Venturi = Venturi channels as per British Standard
Parshall = Parshall channels
Palmer-Bow = Parshall-Bowlus channels
Rect. WTO = Rectangular weir (w)
Rect WThr = Rectangular weir with constriction (w)
NFXRectWTO = Rectangular weir as per NFX (w)
NFXRectWThr = Rectangular weir as per NFX with constriction (w)
Trap.WTO = Trapezoidal weir (w)
V-weir = Triangular ("V") weir (w)
BST V-weir = Triangular weir as per British Standard
NFX V-weir = Triangular weir as per NFX
Configure (w) width additionally
1 hl = 100 l
3
1 m = 1,000 l
1 Ml = 1,000,000 l
1 USgal = 3.79 l
1 USKgal = 3,785.41 l
1 USMgal = 3,785,411.78 l
1 USbl = 119.24 l
1 igal = 4.55 l
1 ibl = 163.66 l
1 inch = 25.4 mm
1 ft = 304.8 mm
Endress+Hauser
RIA452