A height standard assembly is supplied with each compactor. This
standard, along with two pucks and two specimen papers, is used to
calibrate the specimen height.
To begin height calibration, press 2 at the Calibration menu
shown on page 4–5. The compactor displays:
Put Height Std,
Pucks and Papers
Into the Chamber
Press <ENTER>
Place a clean puck, with the large side down, in the center of the
carriage plate. Place two specimen papers and the height
standard assembly in the center of the puck. Place a second
clean puck on the top of the height standard assembly.
Close the chamber door and press ENTER. The compactor
displays:
Height Calibration
Enter Std Height
###.##
Press <ENTER>
The height of the height standard assembly is stamped on its side.
Enter the height to the nearest hundredth and press ENTER. The
compactor finds its home position and then raises the ram until the
upper puck reaches the upper puck plate.
The compactor then applies pressure and waits for the pressure to
stabilize. When the pressure has stabilized, the compactor takes a
series of measurements and then verifies the height calibration.
When the calibration is complete, the compactor displays the
Measured height and the Standard height, as shown below. The
displayed height should be within 0.10 mm of the value stamped
on the height standard assembly. If not, repeat the height calibration.
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