Gravitational Torsion Balance
012–06802B
18
Note:
Be sure the ribbon is not twisted.
9.
Tighten the Phillips screw on the top of the balance to
secure the torsion ribbon head.
10.
Attach the bottom tab of the ribbon to the pendulum bob
using the Phillips screw.
11.
Replace the back plate.
12.
Level and align the pendulum according to the instructions
in the
Equipment Setup
section of this manual.
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1.
To prepare the Gravitational Torsion Balance for
transporting or storing:
a. Remove the front plate.
b. Raise the locking mechanism to securely anchor
the pendulum bob.
c. Check to be sure that the torsion ribbon is
hanging straight down the center of the tube. If it
is not, lower the locking mechanisms, be sure the
torsion wire is centered, and raise the locking
mechanisms again. Repeat as necessary until the
ribbon is centered in the tube.
d. Reinstall the packing foam into the chamber to
secure the pendulum bob.
e. Replace the plate.
2.
The Gravitational Torsion Balance may be stored flat in
its shipping container.
3.
Store in a cool, dry place, and protect the device from any
jarring or rough handling.
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The small and large masses are made of lead, which is toxic if
ingested. Use appropriate precautions for handling lead,
including hand washing after handling the masses.
Note:
To avoid breaking the
torsion ribbon, the locking
mechanism must be fully raised
on both sides during any
moving or transporting of the
Gravitational Torsion Balance.
Summary of Contents for AP-8215
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