Nitrous Express Octane Series Progressive User Manual
Page 5
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Push the control button to enter the Configure Screen.
Select Configure and push the control button to enter the configuration menu
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Starting from the Exit & Save menu shown above, toggle the control button down until RPM Input, is
highlighted.
Push the control button in and you will this screen. Scroll down one space.
This is the Multiplier for your RPM signal. Push the control button in and the screen toggles to grey so
you can adjust the multiplier up or down. Since this gauge can work with many different electronic
ignitions this may need to be adjusted up or down for your application. If connecting to a true tach
signal you would divide by the number of cylinders by 2. For an 8 cyl your Mult: would be 4. The
number to the far RIGHT is what your gauge thinks your real RPM is. If you are
at 2000RPM and this read out does not match, you will need to make
adjustments to the Mul: section. EXAMPLE: If you are at 2000RPM and the
gauge shows 4000 you need to double the multiplier. Once you make that correction the number
should match your tach. Keep in mind that most analog tachs are a little off, so if you are at 2000 and
the gauge shows 2050 you’re fine! Push the control button in and the multiplier is saved.
SCROLL Down:
This is your HI side range for the tach. The closer you keep this number to your
red line number the better or finer your RPM scaling will be. 1000 above red line
works nicely. Push the control button in and it turns to grey allowing you to make
adjustments. Push the control button up or down to increase or decrease the
value. When you get to the desired RPM, push the control button in to save it.
This number is for the resolution of your tach scaling only, nothing more.
SCROLL Down:
This is the HI change color. The displayed RPM will change from yellow to red above this point.
Push the control button and it will turn grey and you can make your adjustments. Push the control
button again to save it.