TACH-HOUR METER:
Engine is NOT Running: Accumulated Run Time (Hours)
Engine IS Running: Current RPM
Engine Recently Stopped: Max RPM
Reset MAX RPM: Hold Button for More than 3 Seconds
Reset MAX RPM: Engine Recently Started
 
SETUP MODE:
Press button to enter setup mode. >>
1: PPR Adjust (number of tach pulses per crankshaft revolution.)
After the first button press, the PPR setting display appears. Press the button to scroll through (default 1.0, 2.0, or 0.5.)
Release button and wait 4 seconds to continue. >>
2: Sensitivity Adjust (the sensitivity of sensor to tach pules.)
Press button to select setting (default Hi, or Lo.)
Release button and wait 4 seconds to continue. >>
3: Speed/filter option (smoothness of display update.)
Select (default Slow 1sec updates, or Fast 1/2sec updates.)
Release button and wait 4 seconds to finish setup mode.