PLS HVR 505, Operating Manual

Page: 9 / 80

Turn the instru-
ment on. The
leveling LED
is flashing and
the instrument
is self leveling.
If the
LED lights
continuously the rotary head
starts and the laser beam will be turned on. Attach the PLS
HVD 505 Detector at this reference point on a rod and move
this height to zero. Now the respective difference in levels to
the reference height can be measured on the ground. It is
useful to use a flexible rod to measure positive and negative
values simply.
Laying out Slope Using the PLS HVR 505
Fasten the PLS HVR 505 to a tripod and plumb up over the
benchmark or hub. Make certain that the PLS HVR 505 is
positioned on the tripod so that the X axis points toward where
you need slope. Auto-level the PLS HVR 505 by depressing
the top green button. Once the laser is level
and rotating at 600 rpm, attach the detector to the grade rod.
Take the grade rod with the detector attached to the end of the
needed distance (end of pipe, footing or form board). Find
level on the detector by a solid tone or by the solid line on the
LCD. Next, depress the top center button on the remote (RC
505) to engage the manual mode on the PLS HVR 505. Then
lower the detector by the correct distance
based on the needed slope. Some exam-
ples are listed below. Depressing the right
red button lowers the laser towards the
detector. Hold down the right-pointing
arrow key until the detector beeps that you
are within range. Now fine-tune the laser
adjustment by going up using the left-arrow
key or down using the right-arrow key until
the laser is locked on with a solid tone or
by the solid line on the LCD.
Examples
APPLICATIONS
7
Height
Transfer
(Leveling)
-1% Slope @100'
Lower the detector
on the grade rod
12" from level
-3% Slope @100'
Lower the detector
on the grade rod
36" from level
-1% Slope @50'
Lower the detector
on the grade rod 6"
from level
-3% Slope @50'
Lower the detector
on the grade rod
18" from level
-1% Slope @25'
Lower the detector
on the grade rod 3"
from level
-3% Slope @25'
Lower the detector
on the grade rod 9"
from level
For a positive slope layout, reverse the above examples.
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