OPERATION
This device has two settings for
Normally Open
(the
Blue
wire will provide power AFTER the
switch reaches the set RPM), and for
Normally Closed
(the
Blue
wire will provide power UNTIL the
switch reaches the set RPM).
This unit comes with a factory setting for a 8-cylinder engine and activation at 5000 RPM
Normally
Open
. The display will stay in Settings Mode until it receives a signal from the ignition system. To
program the unit after starting the engine, shut the engine off and turn on only the ignition.
When in Settings Mode, use push buttons on the device face to change the RPM switch setting in
increments of 100 RPM at a time, up to 9900 RPM. The left button increases, while the right button
decreases. Once you are at the desired setting, the LED display will stay on the RPM setting for a
few seconds, then switch to NO and NC settings. Use the left button to choose. Finally, wait a few
seconds and the device will move on to the final selection, number of cylinders. The device is
programmed for use with 4, 6, and 8-cylinder engines. Use the left button to make your selection.
When you are satisfied with your settings, start the engine and your device will begin to operate
automatically.
There are two indication lights inside the device. A green LED will light to indicate power to the
unit, and a blue LED will indicate when the switch is activated.
Summit SUM-830450-1 RPM Switch w/ Digital Readout page 2
(rev. 01/2017)
