PLS HVR505 - Pacific Laser Systems - #9

APPLI ATI ON

D-

Turn the instru­ment 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.

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 exam­ples 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.

-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

-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

For a positive slope layout, reverse the above examples.