Vernier Go Direct User Manual

®
Go Direct Hand
Dynamometer
(Order Code GDX-HD)
Go Direct Hand Dynamometer can be
used to measure grip and pinch strength and to perform muscle fatigue studies.
This sensor connects directly to student devices via Bluetooth
technology or USB. Students can correlate muscle strength and fatigue when
they pair Go Direct Hand Dynamometer and Go Direct EKG.
Go Direct Hand Dynamometer can be used in a variety of experiments:
Observe the effect of a conscious effort to overcome fatigue on hand grip
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strength.
Correlate grip strength with arm circumference or height.
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Correlate measurements of grip strength and electrical activity with muscle
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fatigue.
Evaluate grip strength and different limb positions.
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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
Go Direct Hand Dynamometer
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Micro USB Cable
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Compatible Software
See
www.vernier.com/manuals/gdx-hd
Direct Hand Dynamometer.
Getting Started
Please see the following link for platform-specific connection information:
www.vernier.com/start/gdx-hd
Bluetooth Connection
1. Install Graphical Analysis 4 on
your computer, Chromebook™, or
mobile device. If using LabQuest 2,
make sure LabQuest App is up to
date. See www.vernier.com/ga4 for
Graphical Analysis 4 availability or
www.vernier.com/downloads to
update LabQuest App.
2. Charge your sensor for at least
2 hours before first use.
®
wireless
for a list of software compatible with Go
USB Connection
1. If using a computer or
Chromebook, install Graphical
Analysis 4. If using LabQuest 2,
make sure LabQuest App is up to
date. See www.vernier.com/ga4 for
Graphical Analysis 4 availability or
www.vernier.com/downloads to
update LabQuest App.
2. Connect the sensor to the USB
port.
3. Turn on your sensor by pressing the
power button once. The LED will
blink red.
4. Launch Graphical Analysis 4 or
turn on LabQuest 2.
5. If using Graphical Analysis 4, click
or tap Sensor Data Collection. If
using LabQuest 2, choose Wireless
Device Setup > Go Direct from the
Sensors menu.
6. Select your Go Direct sensor from
the list of Discovered Wireless
Devices. Your sensor's ID is located
near the barcode on the sensor. The
LED will blink green when it is
successfully connected.
7. Click or tap Done. You are now
ready to collect data.
8. This is a multi-channel sensor. To
change the channel selections, see
www.vernier.com/start/gdx-hd
Charging the Sensor
Connect Go Direct Hand Dynamometer to the included USB Charging Cable
and any USB device for two hours.
You can also charge up to eight Go Direct Hand Dynamometer Sensors using
our Go Direct Charge Station, sold separately (order code: GDX-CRG). An LED
on each Go Direct Hand Dynamometer indicates charging status.
Charging
Fully charged
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3. Launch Graphical Analysis 4 or
turn on LabQuest 2. You are now
ready to collect data.
4. This is a multi-channel sensor. To
change the channel selections, see
www.vernier.com/start/gdx-hd
Orange LED next to the battery icon is solid
while the sensor is charging.
Green LED next to the battery icon is solid
when the sensor is fully charged.