5. Setup for excavating
Aligne Laser
to Notch
Benchmark
With the dipper arm relatively plumb, measure up from the bucket.
The bucket can be fully extended or curled, as long as it's used in the
same position when grade readings are taken. Position the receiver's
on-grade notch at the top of this (L) measurement (per the following
attachment instructions).
6. Positioning the MR 240
Before placing the receiver on the exca-
vator arm, pull down on the release lever.
This creates a gap between the back
plate and machine, preventing the
strong magnets from attaching to the
machine until you have it in position.
Positioning tip: Place it slightly above
your mark, and work the lever up and
down slightly to walk the receiver down
into the on-grade position.
Use the release lever to remove the
receiver from the machine.
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Place the laser in a loca-
tion where receiver can
pick up the beam, and
turn it on.
To determine the setup
length:
measure the H.I. (height
of instrument).
Add that to Cut
Bucket
measurement to
Extended
determine depth (L).
Excavation
Depth
7. Specifications
Range
Accuracy
Fine
Coarse
Actual accuracy depends on beam diameter and distance to the laser.
Laser capture height
Reception angle
Power
Battery life
Automatic shut-off
Operating temperature
Type of attachment
Environmental
Size
650 ft. (200 m)
varies with laser used
1/4" (6 mm) typical
1" (30mm) typical
6" (15 cm)
230°
(3) AA alkaline batteries
Approx. 130 hours; depends
on use and temperature
After 1 hour of no activity
-18°F to 158°F (-28°C to 70°C)
Magnetic (rare earth magnets
built into back plate)
Waterproof; IP67
8.5" x 5" x 4" (22 x 10 x 12cm)
4.8 lbs. (2.2kg) without batteries
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