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8.5 Smart Target Lock (Grade Matching and Monitoring)

Smart Target Lock Using the Smart Target Lock feature, you can match an existing grade. The Rugby
step-by-step using moves to the new grade position, displays the grade found and begins self-levelling to
the Rod Eye 180 maintain the grade over time. Maximum range is 100 m (300’).

Pressing and holding the Laser Man Button for 5 seconds rather than 1.5 seconds
starts the Rod Eye 180 in lock mode. The Rod Eye 180 must remain in place to monitor
any movements of the rotating beam. Thus, an accurate grade setup is maintained.

3

5s α
X

α
SMT

24
XSL

007836_001 1

Step Description

1. Ensure that the grade value is set to zero.
Set up the Rugby 870/880 at the base of a slope with the X-axis pointing in
the direction of the slope.

2. At the base of the slope, adjust the height of the Rod Eye 180 receiver on the
rod until the on-grade (centreline) position is indicated on the receiver by:
• the centre bar
• the green flashing LED
• a solid audio tone
• the digital display

3. Move to the top of the slope and press the Laser Man Button for 5 seconds to
start the smart target and lock process. The receiver shows SMT, then XSL
during the X-axis slope catching and lock process.

The Rugby 870/880 searches for the receiver until the on-grade position is
found. Once the on-grade position is found, the receiver flashes all three LEDs
simultaneously one time. The display shows LOC while the receiver is in lock
mode.

4. After this signal, the receiver must remain in place to monitor any movements
of the rotating beam. The grade for the sloped axis is displayed on the LCD
display of the Rugby.

 To use Smart Target Lock for the Y-axis, press the Y Button together with the
Laser Man Button for 5 seconds until the receiver shows YSC, then YSL during
the Y-axis slope catching and lock process.

To turn off lock mode on the receiver, hold the Power Button for 1.5 seconds.

 Using this procedure, you can monitor either one or both axes.
 To lock and monitor the rotating beam of an existing grade, mount the receiver

in the plane of the laser before starting the Smart Target Lock procedure.

Rugby 870/880, Applications 46