AEM 30-4900 Wideband Failsafe Gauge - Manual (Page 7)

Page 8
Logger
Button Description
Log Percentage Displays current amount of data recorded
Download Log
Downloads all the collected AFR data that is stored in the logger; will prompt to save log to disk;
log files saved as .daq for direct viewing in AEMdata program
Clear Log Clears all stored AFR data from the logger
RPM
Parameter Description
RPM Displays the current engine speed dictated by the Pulses Per Revolution option.
Option Description
Pulses Per
Revolution
Using the RPM parameter, select the number of pulses per revolution to properly calibrate the
engine speed input.
Alarm Configuration
Option Description
Alarm Delay
Period of time that measured AFR can be outside the upper and lower AFR limit lines before an
alarm condition is triggered; 100-1000 milliseconds
Alarm Reset
Period of time AFR must be within the acceptable range before the alarm will automatically
reset and turn OFF; 1-10 seconds
Disable Auto Reset Select to require power cycle to reset alarm; overrides the automatic alarm reset period.
GND Output
Select to turn the ground output ON or turn the ground output OFF when an alarm is triggered;
1.5 amps max
Alarm Status
Parameter Description
Status Indicator Color indicates status; green is system ready, red is alarm triggered
Source
Indicates the source of the alarm condition; possible alarm conditions are high AFR, low AFR,
auxiliary input, and alarm test
Alarm Press Pressure when alarm was triggered; Units determined by Pressure Scale selection
Alarm AFR AFR when alarm was triggered; Units determined by AFR Scale selection
Option Description
Alarm Test Simulates the alarm to test output configuration; test duration set by Alarm Delay value