● Setup - Display - Rate
"RATE" determines how often the measurement information on the display is updated. Each
choice (SLOW, MEDIUM, and FAST) has a specific update interval associated with it as
shown in Table 1.
The table also shows the number of measurements which are recursively averaged to
generate the information displayed for a given update interval. The averaging is performed
on data sampled at 0.01 second intervals. For example, the displayed data at the "Fast"
display rate is the result of 34 measurements at 0.01 second intervals with the averaging
formula of (New Average) = 1/8*(New Value) + 7/8*(Old Average).
Rate Display Update Measurement
Interval Averaging
SLOW 1.20 sec. 32 measurements
MEDIUM 0.60 sec. 16 measurements
FAST 0.34 sec. 8 measurements
Table 1: Display Rate Options
Setup - Record Menu
The "RECORD" selection from the setup menu allows the setting of the recording duration
(in minutes and seconds), the sample interval (time between samples), and which (one or
both) of the AFR sensors to record. A maximum of 5,000 measurements may be taken
during a recording session (i.e. 2,500 for each sensor or 5,000 for one sensor). The minimum
sample interval is 0.01 seconds. For more information, see the Specifications and Limits
section on page 33.
Setup - Outputs Menu
The choice of "OUTPUTS" from the setup menu allows the programming of the analog and
simulated EGO (exhaust gas oxygen) sensor outputs (see Figure 11). "EXIT" returns the
AFRecorder to the setup menu.
SETUP - OUTPUTS
1 ANALOG 3 CAL D/A
2 SIM EGO 4 EXIT
Figure 11: Setup - Outputs Menu
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