Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco
Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco
Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco
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Appendix C <strong>Scanner</strong> ® <strong>2000</strong> microEFM<br />
<strong>Flow</strong> Calculation Parameter Registers (1-16)<br />
The <strong>Flow</strong> Calculation Parameter Registers definition is dependent upon the flow rate calculation method<br />
that is implemented. The following table describes the function of each of these registers for each of the<br />
supported calculation methods.<br />
Reg.<br />
Cone –Spool<br />
Num AGA-3 ISO-5167<br />
Cone -Wafer AGA-7<br />
1 Pipe Size (Corrected) Pipe Size (Corrected) Pipe Size (Corrected) Pipe Size (Corrected)<br />
2 Plate Size (Corrected) Plate Size (Corrected) Plate Size (Corrected) Temperature Ratio<br />
3 Beta (Corrected) Beta (Corrected) Beta (Corrected) Pressure Ratio<br />
4<br />
C-34<br />
Plate Size<br />
(configured)<br />
Plate Size<br />
(configured)<br />
Plate Size<br />
(configured)<br />
Supercompressibilty<br />
5 Stability Index Stability Index Stability Index <br />
6 Y Y Y <br />
7 Cd Cd Cd <br />
8 Ev Ev Ev <br />
9<br />
10<br />
11<br />
<strong>Flow</strong> Extension<br />
(sqrt["H20*lbm/cf3])<br />
<strong>Flow</strong>ing Density<br />
(kg/m3)<br />
Quality (Vapor Liquid<br />
Fraction)<br />
<strong>Flow</strong> Extension<br />
(sqrt[pa*kg/m3])<br />
<strong>Flow</strong>ing Density<br />
(kg/m3)<br />
Quality (Vapor Liquid<br />
Fraction)<br />
<strong>Flow</strong> Extension<br />
(sqrt[pa*kg/m3])<br />
<strong>Flow</strong>ing Density<br />
(kg/m3)<br />
Quality (Vapor Liquid<br />
Fraction)<br />
<br />
<strong>Flow</strong>ing Density<br />
(kg/m3)<br />
<br />
12 Liquid Heating Value Liquid Heating Value Liquid Heating Value <br />
13<br />
14<br />
15<br />
Liquid <strong>Flow</strong>ing<br />
Density<br />
Estimated Liquid<br />
<strong>Mass</strong> <strong>Flow</strong> Rate<br />
Apparent <strong>Mass</strong> <strong>Flow</strong><br />
Rate<br />
Liquid <strong>Flow</strong>ing<br />
Density<br />
Estimated Liquid<br />
<strong>Mass</strong> <strong>Flow</strong> Rate<br />
Apparent <strong>Mass</strong> <strong>Flow</strong><br />
Rate<br />
Liquid <strong>Flow</strong>ing<br />
Density<br />
Estimated Liquid<br />
<strong>Mass</strong> <strong>Flow</strong> Rate<br />
Apparent <strong>Mass</strong> <strong>Flow</strong><br />
Rate<br />
<br />
<br />
Apparent <strong>Mass</strong> <strong>Flow</strong><br />
Rate<br />
16 Lockhart-Martinelli Lockhart-Martinelli Lockhart-Martinelli <br />
Base Units/Configured Units<br />
The holding registers allow users to read data in terms of configured units of measurement and base units. The<br />
configured units follow the settings based on the Unit setting register and the unit scale and offset registers.<br />
The base units will always have the same unit of measurement independent of the unit, scale and offset<br />
settings. Also note that the log data is always in terms of base units. It is recommended to configure the units<br />
of measurement using the software.<br />
Polling Registers<br />
The <strong>Scanner</strong> <strong>2000</strong> stores volumes, averaged values, and flow times since the last polling sequence in a set of<br />
polling registers. Additionally, the instrument stores the number of polls requested in the polling index.<br />
The polling sequence is started by writing a value of 20,000 to the Control Register. This transfers the polling<br />
totals, averages, and run times to the previous polling registers, increments the polling index and resets the<br />
polling totals, averages and run-time registers. Note that the polling registers are displayed in base units and<br />
configured units.
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