Siemens SITRANS LUT400, Руководство по эксплуатации

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A5E33329501 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS Page 195
mmm
mm
Pa
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2.15.3.8. User Defined Unit
Set the unit text to display for current flow when 2.15.3.7.Flowrate Units set
to user-defined. Limited to 16 ASCII characters.
2.15.3.9. Low Flow Cutoff
Eliminates totalizer activity for head levels at or below the cutoff value.
Enter the minimum head in
2.1.1.Units
where totalizer activity should cease.
2.15.4. PMD Dimensions
The dimensions of the Primary Measuring Device (PMD). (The dimensions of
the vessel, wet well, or reservoir are only important if you require volume.)
The following table is a reference to the parameters that must be set for each
PMD. Parameter definitions follow the table.
Notes: The text entered is simply for display purposes. No unit
conversion occurs.
Values
Range: 0.000 to 60.000
Default: 0.000
Supported PMD Dimensions required
Exponential Devices
2.15.3.2. Flow Exponent
2.15.4.1. K Factor
Rectangular Flume BS-3680
2.15.4.5. OCM Dimension 1 - approach width B
2.15.4.6. OCM Dimension 2
- throat width b
2.15.4.7. OCM Dimension 3 - hump height p
2.15.4.8. OCM Dimension 4
- throat length L
Round Nose Horizontal Crest Weir BS-3680
2.15.4.5. OCM Dimension 1
- crest width b
2.15.4.6. OCM Dimension 2 - crest height p
2.15.4.7. OCM Dimension 3
- crest length L