Spektrum SPMAR7200BX - Manual (Page 3)

3
menu F
Setting the RPM Prescaler:
You can add equally-spaced magnets to the fan, clutch or mainshaft to
increase the resolution of the sensor reading. The increased resolution is most
helpful with low RPM, gasoline engines. If you are only using one magnet,
Prescaler must be OFF. Otherwise, set the Prescaler to the total number of
magnets. Options range from 2–7 magnets.
menu G
Gear Ratio – First Digit:
You must set the appropriate gear ratio for your helicopter so the governor will
work properly at your desired headspeed. The menu G parameter enables you to
set the first digit X (where the gear ratio is X.YZ) in a range from 6 to 12.
menu H and I
Gear Ratio – Second and Third Digits:
Menus H and I enable you to set the last two digits .YZ (where the gear ratio
is X.YZ). Setting the last two digits for your gear ratio requires a combination
of the H and I menus.
EXAMPLE: Needed Gear Ratio is 7.95 for .YZ = .95
Set Menu H to RED
Set Menu I to RED FLASHING
Exiting the Menu:
When LED I is solid, quickly press the
setup button to exit the menu.
If the gear ratio for your helicopter is
not shown, select the closest ratio from
the chart.
Status-LED
oFF Prescaler Off
purple Flashing Prescaler divide by 2
purple Solid Prescaler divide by 3
red Flashing Prescaler divide by 4
red Solid Prescaler divide by 5
Blue Flashing Prescaler divide by 6
Blue Solid Prescaler divide by 7
Status-LED X.
oFF 6
purple Flashing 7
purple Solid 8
red Flashing 9
red Solid 10
Blue Flashing 11
Blue Solid 12
H
Status-LED .YZ
I
Status-LED
oFF .00 oFF
oFF .05 purple Flashing
oFF .10 purple Solid
oFF .15 red Flashing
purple Flashing .20 oFF
purple Flashing .25 purple Flashing
purple Flashing .30 purple Solid
purple Flashing .35 red Flashing
purple Solid .40 oFF
purple Solid .45 purple Flashing
purple Solid .50 purple Solid
purple Solid .55 red Flashing
red Flashing .60 oFF
red Flashing .65 purple Flashing
red Flashing .70 purple Solid
red Flashing .75 red Flashing
red Solid .80 oFF
red Solid .85 purple Flashing
red Solid .90 purple Solid
red Solid .95 red Flashing