Emerson Process Management ControlWave EFM 3808 - Manual (Page 225)

CI-ControlWave EFM Appendix F / F- 25
F.6.2.2 Frequency Input
The frequency input must be brought into one of the two high-speed counter (HSC) inputs
on the I/O board. Users select the two I/O points to which the typical turbine, PD, or
ultrasonic meter is connected. However; if using an Invensys Auto-Adjust Turbo-Meter,
both HSC inputs are used to select the Auto-Adjust Algorithm. To select the Auto-Adjust
Algorithm, the user will toggle the push button under Source fromr High Speed Counter to
Auto Adjust Module. In this case, the user selects which point will be used for the Main
Rotor and which point will be used for the Sense Rotor.
Further configuration of the Auto-Adjust Turbine Meter is performed via the Auto-Adjust
Configuration Page. (For a description of the items on the Auto-Adjust Configuration Page,
see the ACCOL3 Function Block Help Documentation).
If the user selects the Auto-Adjust Configuration button the Auto-Adjust Configuration for
Run # Web Page will appear (see Figure F-16B). This page provides Calibration Data,
Configuration Data and Calculated Factors.
Figure F-16A - Analog Input Configuration Web Page
(Accessed from Meter Run I/O Configuration Web Page)
F.6.2.3 Heating Value Input
The user has four options for the source of the heating value, Manual Entry,
Chromatograph, AGA5 or Analog Input.
Manual Entry is selected when the heating value will be directly entered. This value may
be entered via the Meter Run I/O Configuration Web Page, or may be written to a signal
externally.
Chromatograph is selected when the heating value is read directly from the chromatograph
via the MODBUS interface.