Honeywell SMV 3000 Flow Compensation Wizard, Description Standard Equation, Primary Element

Models: SMV 3000

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6.11Flow Compensation Wizard

Description

Standard Equation

A Flow Compensation Wizard is provided with the SCT 3000 which is used to configure PV4, the flow variable of the SMV 3000 Multivariable Transmitter. The flow compensation wizard will guide you in configuring the PV4 output for either a standard flow equation or a dynamic compensation flow equation.

You can access the flow compensation wizard by pressing the

Wizard . . . button in the SCT /SMV 3000 configuration window.

Refer to the SCT 3000 on-line User Manual for detailed information for using the flow compensation wizard.

The SMV 3000 standard flow equation is a simplified version of the ASME MFC-3M flow equation. The SMV 3000 uses the standard equation to compensate for the density changes in gases, liquids and steam (saturated and superheated) and can be used with any primary flow element that behaves according to the following equation:

Flow = Kusr P

Dynamic

Compensation

Equation

See Appendix C for the SMV 3000 standard flow equations and examples of flow configuration using the flow compensation wizard.

The SMV 3000 dynamic compensation flow equation is the ASME flow equation as described in ASME MFC-3M,Measurement of Fluid Flow in Pipes Using Orifice, Nozzle and Venturi.” The dynamic compensation flow equation should be used to increase the flow measurement accuracy and flow turndown for the primary elements listed in Table 18.

Table 18 Primary Flow Elements

Primary Element

Orifice - Flange taps (ASME - ISO) D 2.3

- Flange taps (ASME - ISO) 2 D 2.3

-Corner taps (ASME - ISO)

-D and D/2 taps (ASME - ISO)

-2.5D and 8D taps (ASME - ISO)

Application

Gases, liquids and steam

Gases, liquids and steam

Gases, liquids and steam

Gases, liquids and steam

Liquids

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Honeywell SMV 3000 Flow Compensation Wizard, Description Standard Equation, Dynamic Compensation Equation, Primary Element