Siemens SITRANS LUT400 Operating Instructions Manual page 73

Calculation Factors
Note
• The following five parameters will display in the wizard based on the PMD selected
above.
• These parameters are used in the flow calculation formula (see Method of Flow
Calculation (Page 302)).
Flow Exponent
(PMD = EXPONENTIAL DEVICES)
The exponent for the flow calculation formula. (See Method of Flow Calculation (Page 302))
Value
K Factor
(PMD = EXPONENTIAL DEVICES)
The constant used in the flow calculation formula for absolute calculation of an exponential
device only.
Value
V Notch Angle
(PMD = THIN PLATE V-NOTCH WEIR)
The V-Notch angle used in the flow calculation formula.
Value
Slope
(PMD = TRAPEZOIDAL FLUME or ROUND PIPE)
The Flow Slope used in the flow calculation formula.
Value
Roughness Coefficient
(PMD = ROUND PIPE)
The Flow Roughness Coefficient used in the flow calculation formula.
Value
SITRANS LUT400
Operating Instructions, 07/2019, A5E33329501-AC
Range: -999.000 to 9999.000
Default: 1.550
Range: -999.000 to 9999.000
Default: 1.000
Range: 25.000 to 95.000
Default: 25.000
Range: -999.000 to 9999.000
Default: 0.000
Range: -999.000 to 9999.000
Default: 0.000
Commissioning
6.3 Quick Start Wizards
71