•A-L � will start to calculate time automatically after 1800rpm. Low setting
•A-S � will start to calculate time automatically after 1200rpm. Medium setting
•A-H � will start to calculate time automatically after 900rpm. High setting
•E-L � will start to calculate time according to how long the ignition has been on. Adds 55 seconds per hour.
•E-H � will start to calculate time according to how long the ignition has been on. Adds130 seconds per hour.