Siemens SITRANS LUT400 Operating Instructions Manual page 58

Ultrasonic controllers
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Calculation factors:
Notes:
• 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
Calculation
Flow Exponent
(PMD = EXPONENTIAL DEVICES)
The exponent for the flow calculation formula. (See Method of Flow Calculation on
.)
page 268
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
Page 50
SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
on page 268).
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
Method of Flow
7ML1998MV01

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