Adjust RPM reading as follows:
1.
Fast-Tach
must be on and in “RPM mode
Advanced Operation
RPM Set-up:
Determine the amount of pulses (sparks) per engine revolution. Most
common is 1 spark per revolution - (360° default setting).
If you are unsure which setting your engine needs, start the engine and
read the RPM with
Fast-Tach
. If you know the idle speed is normally
1200 rpm and the
Fast-Tach
reads 600 rpm then your engine has a spark
every second revolution. You need to change RPM mode to 720°
1. Fast-Tach
must be on and in RPM mode (0000 on the display
)
2.
Push and hold
the ON/MODE button, the display first shows
“MAX”
continue holding
ON/MODE
button till the word
“RESET”
appears then let go.
3. The display will show
“0000”
after another second and the MAX RPM is now reset to 0000.
TIP:
Remote Pulse Pickup
Loop a piece of wire around ignition lead wire and lay
Fast-Tach
on top of the wire.
Fast-Tach
should
now read normally
Resetting the “Maximum RPM”.
45
° = 8 sparks per revolution
60
° = 6 sparks per revolution
90
° = 4 sparks per revolution
120
° = 3 sparks per revolution
180
° = 2 sparks per revolution
360
° = 1 spark per revolution
720
°
= 1 spark per 2 revolution
2. Press and release ON/Mode button until “FUNC” appears, (do not release button) continue holding button until
“RESET” appears then release button and the display will show only “FUNC”. Press and release ON/Mode
button to toggle between modes (720° 360° 180° 120° 90° 60° 45°) until desired mode is displayed, release
button wait 5 sec. the RPM mode is changed and the unit will display “0000” and is ready to read engine RPM.
To Decrease RPM Reading
s
