16
Checking Level Accuracy
Rugby 300 SG 1.1.0en
Adjusting Level Accuracy
To Enter Adjustment Mode
With the unit turned off, press and hold
both the Up and Down buttons, then
press the Power button to put the unit
in adjustment mode.
X-Axis Accuracy Adjustment
If entered correctly, the X-axis
adjustment screen will appear.
When entering the adjustment screen,
a small hour glass will appear. Wait
until the hour glass disappears before
checking and changing the adjustment
numbers.
Use the Up and Down arrows to
change the number and move the
beam to the half-way point between
the positions marked for the X-Axis.
Five counts in the display are equal to
approximately 1/16” at 100 feet (1.6
mm at 30 meters).
Press the Star button to accept this
position and accept the number in the
display for the X-Axis.
Press the Star button again to move to
the Y-Axis adjustment screen.
Y-Axis Accuracy Adjustment
If entered correctly, the Y-axis
adjustment screen will appear.
Wait until the hour glass disappears
before checking and changing the
adjustment numbers.
Use the Up and Down arrows to
change the number and move the
beam to the half-way point between
the positions marked for the Y-Axis.
Press the Star button to accept this
position and accept the number in the
display for the Y-Axis.
Press the Star button again to accept,
save, store the adjustment activity, and
to return to the main display screen.
)
After adjustment, always check
your work.
)
Always check accuracy prior to
critical applications. Repeated
activation of the grade mechanism
may result in accuracy variations up to
± 20 arc seconds.
)
Pressing the power button at
any time before completing the
procedure will revert the accuracy to
previously saved information.
