Vernier Go Direct GDX-CFA User manual

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Confirm the location of the lowest point by gently pushing the beam a
couple more times.
5. Adjust one or two legs so that when you tap the beam it rotates freely and
does not settle to the same location.
6. Repeat steps 4 and 5 until the beam spins without returning to a consistently
low spot.
WARNING: Always wear safety glasses when using the Go Direct Centripetal
Force Apparatus to prevent injury from the rotating beam.
Getting Started
Data collection with the Go Direct Centripetal Force Apparatus requires the use
of Go Direct Force and Acceleration. You can refer to the user manual for this
sensor at:
www.vernier.com/manuals/gdx-for
1. Verify that the unit is level.
2. Attach Go Direct Force and Acceleration to the apparatus, as illustrated in
the assembly instructions.
3. Turn on your sensor and connect it to Graphical Analysis 4 on your device.
4. Select the appropriate data-collection channels. For additional information,
refer to www.vernier.com/til/4258
Using the Product
Verify that the unit is level. Connect Go Direct Force and Acceleration to the
apparatus, as illustrated in the assembly instructions.
Troubleshooting
Check the unit to ensure the shaft is free spinning. Confirm that the beam is
securely attached to the shaft and that the thumb screw is secured so the block
does not slip.
Repair Information
If you have followed the troubleshooting steps and are still having trouble with
your Go Direct Centripetal Force Apparatus, contact Vernier Technical Support
at [e-mail] or call 888-837-6437. Support specialists will work
with you to determine if the unit needs to be sent in for repair. At that time, a
Return Merchandise Authorization (RMA) number will be issued and
instructions will be communicated on how to return the unit for repair.
Warranty
Vernier warrants this product to be free from defects in materials and
workmanship for a period of five years from the date of shipment to the
customer. This warranty does not cover damage to the product caused by abuse
or improper use. This warranty covers educational institutions only.
Go Direct®
Centripetal Force
Apparatus
(Order Code GDX-CFA)
Go Direct Centripetal Force Apparatus is
a rotational system mounted on a solid
base. It is designed to accommodate the Go Direct Force and Acceleration
sensor (order code GDX-FOR) for data collection.
Note: Vernier products are designed for educational use. Our products are not
designed nor are they recommended for any industrial, medical, or commercial
process such as life support, patient diagnosis, control of a manufacturing
process, or industrial testing of any kind.
What's Included
lApparatus base
lBearing and shaft with 3-step pulley
lBeam with end caps
lLoop attachment for the sensor
lLong thumb screw and 80/20 nut
lShort thumb screw to attach sensor bracket to sensor
lSensor bracket
lSliding carriage
lCounterbalance carriage
l100 gram masses (4)
l50 gram masses (2)
Note: Go Direct Force and Acceleration (order code GDX-FOR − not included)
should be used for data collection with this apparatus.
Assembly
Refer to assembly instructions included with the apparatus. These are also
available at www.vernier.com/gdx-cfa
Leveling the Apparatus
1. After assembly, secure the counterbalance carriage to the outer end of the
beam.
2. Place 250 grams of mass in the carriage. WARNING: Using more than
250grams of mass in a mass carriage may result in the top mass ejecting at a
high speed.
3. Use a flathead screwdriver to lower the base to the lowest position at each
corner. You can also turn the foot of the support leg by hand.
4. Push the beam lightly to observe where the beam settles. The beam will
rotate to settle the masses at the lowest point of the rotational plane.

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Toll Free [phone] • [phone] • Fax [phone]
[e-mail] • www.vernier.com
Rev. 5/3/19
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