Results and Plot Configuration
Analysis of Data
AFRemote allows real-time to disk data, real-time plot to disk data, recorded data (via
"Upload Recorded Data"), or loaded data (via "Load PC File Data") to be analyzed by
statistics or static plotting. Statistics are accessed by selecting "Analysis" followed by the
measured parameter.
Plot Modification
"Plots" followed by "Draw Static Plot" plots the data currently within AFRemote. The static
plot is drawn using data at each sample interval (not averaged). The plot type and scales can
be modified by "Set Plot Type" and "Set Plot Scales".
Hardcopy of Plots
To print hardcopies of static plots on the PC's screen, a screen-dump utility such as
GRAPHICS (distributed with DOS) must be executed prior to entering AFRemote. The
GRAPHICS command consists of "GRAPHICS" (without quotes) followed by the printer
type. Refer to a DOS manual for more information. Once GRAPHICS has been executed,
hardcopies of the screen can be made by pressing the "Shift" and "Print Screen" keys at the
same time. Attempting to screen-dump during a real-time operation (ex. real-time plotting)
will interrupt the procedure and result in a system timeout.
If AFRemote is run from a MS-DOS prompt within Windows, use the Windows clipboard to
capture the plot.
Setup
The setup of the AFRecorder in remote mode is very similar to its setup in stand-alone mode.
One difference is that in remote mode, the modified setup parameters must be
downloaded to the AFRecorder for setup changes to take effect. Select the AFRemote
"Setup" menu to specify the setup parameters. Then select "Setup" followed by "Download
Setup Parameters" to download the setup parameters to the AFRecorder. Refer to the section
entitled Setup Menu on page 16 for more information.
AFR Measurement Offsets
AFR measurement offsets may be entered to bias the measured AFRs for each AFR sensor
by selecting "Setup" followed by "Offsets". The entered offset acts across the entire range of
measured AFRs. Separate offset values are maintained for each of the AFR units choices
(AFR, φ, λ or %O
2
). For example, if the measured AFR is 14.6 and the offset is -0.1, the
displayed AFR will be 14.5. The offset AFR is used for display, recording, and outputs.
The AFR offset must be downloaded to the AFRecorder for it to take effect.
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