Vernier GDX-RB User Manual

®

Go Direct
Respiration Belt

(Order Code GDX-RB)

Go Direct Respiration Belt uses a force
sensor and an adjustable nylon strap to measure respiration effort and rate. An
LED indicator provides feedback so belt tension can be optimized for best
results. Respiration rate is reported within the software, which makes
comparison studies betweens subjects or experiments easy to do. The sensor can
also be used measure steps and step rate. The following are some activities and
experiments that can be performed using the Go Direct Respiration Belt:

l Study how respiration rate changes after exercise or holding of breath.
l Study how respiration effort changes after exercise or holding of breath.
l Compare resting respiration parameters of athletes and non-athletes.
l Use the built-in pedometer to compare step rate while walking and running.

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.

3. Turn on your sensor by pressing the
power button once. The Bluetooth
LED will blink red.

4. Launch Graphical Analysis or turn
on LabQuest.

5. If using Graphical Analysis, click
or tap Sensor Data Collection. If
using LabQuest, 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
Bluetooth 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-rb

3. Launch Graphical Analysis or turn

®

on LabQuest. 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-rb

Note: This sensor does not work with
the original LabQuest. It works with
LabQuest 2 or LabQuest 3.

What's Included

l Go Direct Respiration Belt
l Micro USBCable

Compatible Software

See www.vernier.com/manuals/gdx-rb for a list of software compatible with the Go
Direct Respiration Belt.

Getting Started

Please see the following link for platform-specific connection information:

www.vernier.com/start/gdx- rb

Bluetooth Connection USB Connection

1. Install Vernier Graphical
Analysis™ on your computer,
Chromebook™, or mobile device. If
using LabQuest®, make sure
LabQuest App is up to date. See
www.vernier.com/ga4 for Graphical
Analysis availability or
www.vernier.com/downloads to
update LabQuest App.

2. Charge your sensor for at least
2hours before first use.

1. If using a computer or
Chromebook, install Vernier
Graphical Analysis. If using
LabQuest, make sure LabQuest
App is up to date. See
www.vernier.com/ga4 for Graphical
Analysis availability or
www.vernier.com/downloads to
update LabQuest App.

2. Connect the sensor to the USB
port.

Charging the Sensor

Connect the Go Direct Respiration Belt to the included USB Charging Cable
and any USB device for two hours.

You can also charge up to eight Go Direct Respiration Belts using our
GoDirect Charge Station, sold separately (order code: GDX-CRG). An LED on
each Go Direct Respiration Belt indicates charging status.

Charging

Orange LED next to the battery icon is solid
while the sensor is charging.

Fully charged

Green LED next to the battery icon is solid
when the sensor is fully charged.

Powering the Sensor

Turning on the sensor

Putting the sensor in
sleep mode

Press button once. Red LED indicator next to the
Bluetooth icon flashes when the unit is on.

Press and hold button for more than three seconds
to put into sleep mode. Red LED indicator next to
Bluetooth icon stops flashing when sleeping.

Connecting the Sensor

See the following link for up-to-date connection information:

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www.vernier.com/start/gdx- rb

Connecting via Bluetooth

Ready to connect Red LED next to the Bluetooth icon flashes

when sensor is awake and ready to connect.

Connected Green LED next to the Bluetooth icon flashes

when sensor is connected via Bluetooth.

Connecting via USB

Connected and charging Orange LED next to the battery icon is solid

when the sensor is connected to Graphical Ana­lysis via USB and the unit is charging. LED next
to Bluetooth icon is off.

Connected, fully charged Green LED next to the battery icon is solid

when the sensor is connected to Graphical Ana­lysis via USB and fully charged. LED next to
Bluetooth icon is off.

Charging via USB,
connected via Bluetooth

Orange LED next to the battery icon is solid
when the sensor is charging. Green LED next to
the Bluetooth icon flashes.

Identifying the Sensor

When two or more sensors are connected, the sensors can be identified by
tapping or clicking Identify in Sensor Information.

Using the Product

Place the Go Direct Respiration Belt around the chest or abdomen of the
subject. The sensor does not need to rest on the skin; it can be worn over
clothing. Secure the sensor to the subject using the strap and clips provided. For
best results, position the sensor box so it is located just below the sternum of
the subject. The tension indicator light is located in the bottom left corner of the
sensor label, just below the checkmark. If the light is not on, tighten the strap
until the light turns green. Loosen the strap if the light turns red. A red light
indicates too much tension.

Connect the sensor following the steps in the Getting Started section of the user
manual.

Channels

Go Direct Respiration Belt has four measurement channels:

l Force
l Respiration Rate
l Steps
l Step Rate

Force

Force is a default channel that is active when the sensor is connected. The force
channel measures respiration effort. This is the force exerted by the chest during
respiration. Inhalation will be observed as an increase in force. Exhalation will
be observed as a decrease in force.

Respiration Rate

Respiration Rate is the other default channel that is active when the sensor is
connected. This channel detects inhalations and calculates the number of breaths
per minute (BPM). The sample window for the calculation is 30 seconds. The
advance interval is 10 seconds. The value will update every 10 seconds.

Steps

The Steps channel reports the number of steps that are detected by the sensor.
You should zero this channel before collecting data.

Step Rate

The Step Rate channel steps per minute (SPM). The sample window for the
calculation is 10 seconds. The advance interval is 10 seconds. The value will
update every 10 seconds.

Videos

View videos related to this product at www.vernier.com/gdx-rb

Calibrating the Sensor

Force

The channel is factory calibrated. You should never have to perform a new
calibration for the Go Direct Respiration Belt. If you would like to calibrate the
sensor, use a one-point calibration. Place the sensor on a flat surface with the
label facing upward. Enter 0 N as the known force.

Respiration Rate

The channel is factory calibrated.

Steps

The channel is factory calibrated.

Step Rate

The channel is factory calibrated.

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Specifications

Range 0–50 N

Resolution 0.01 N

Response time 50 ms

Respiration rate Sample window: 30 s

Advance interval: 10 s

Step rate Sample window: 10 s

Advance interval: 10 s

Maximum chest

140 cm

circumference

Wireless specification Bluetooth 4.2

Maximum wireless range 30 m

Battery 300 mA Li-Poly

Battery life (single full

~24 hours

charge)

Battery life (long term) ~500 full charge cycles (several years depending

on usage)

Care and Maintenance

Battery Information

The Go Direct Respiration Belt contains a small lithium-ion battery. The system
is designed to consume very little power and not put heavy demands on the
battery. Although the battery is warranted for one year, the expected battery life
should be several years. Replacement batteries are available from Vernier (order
code: GDX-BAT-300).

Storage and Maintenance

To store the Go Direct Respiration Belt for extended periods of time, put the
device in sleep mode by holding the button down for at least three seconds. The
red LED will stop flashing to show that the unit is in sleep mode. Over several
months, the battery will discharge but will not be damaged. After such storage,
charge the device for a few hours, and the unit will be ready to go.

Exposing the battery to temperatures over 35°C (95°F) will reduce its lifespan. If
possible, store the device in an area that is not exposed to temperature extremes.

Water Resistance

The Go Direct Respiration Belt is not water resistant and should never be
immersed in water.

If water gets into the device, immediately power the unit down (press and hold
the power button for more than three seconds). Disconnect the sensor and

charging cable, and remove the battery. Allow the device to dry thoroughly
before attempting to use the device again. Do not attempt to dry using an
external heat source.

How the Sensor Works

The Go Direct Respiration Belt uses a force sensor connected to a nylon strap to
measure respiration effort (the force exerted by the chest during respiration). The
sensor has two straps. The long strap is adjustable and is attached to a plastic
loop on the sensor box. The short strap is attached to a second loop that is
connected to a force sensor inside the sensor box. The force sensor measures the
amount of force that is applied to the small strap. The straps are placed around
the chest of the subject and then connected to each other using the clip. The
chest cavity expands with each inhalation. This applies tension to the small
strap which is measured by the force sensor. During exhalation, the tension
decreases on the strap, so a decrease in force is observed.

Troubleshooting

For best results, position the sensor box so it located just below the sternum of
the subject. Make sure the tension indicator light is green before collecting data.

The ideal sampling rate for the sensor depends on the task the subject will be
performing. The default sampling rate should be used if the subject is at rest, or
will be sitting or standing. A sampling rate of 4 samples per second or slower
should be used if the subject is walking.

Only the Force and Respiration Rate channels are enabled by default. Use
software controls to enable the steps and step rate channels if desired.

For troubleshooting and FAQs, see www.vernier.com/til/4066

Repair Information

If you have watched followed the troubleshooting steps and are still having
trouble with your Go Direct Respiration Belt, 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.

Accessories/Replacements

Item Order Code

Micro USB Cable

USB-C to Micro USBCable

Go Direct 300 mAh Replacement Battery

CB-USB-MICRO
CB-USB-C-MICRO
GDX-BAT-300

Warranty

Warranty information for this product can be found on the Support tab at

www.vernier.com/gdx- rb

General warranty information can be found at www.vernier.com/warranty

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Disposal

When disposing of this electronic product, do not treat it as household waste. Its
disposal is subject to regulations that vary by country and region. This item
should be given to an applicable collection point for the recycling of electrical
and electronic equipment. By ensuring that this product is disposed of correctly,
you help prevent potential negative consequences on human health or on the
environment. The recycling of materials will help to conserve natural resources.
For more detailed information about recycling this product, contact your local
city office or your disposal service.

Battery recycling information is available at www.call2recycle.org

Do not puncture or expose the battery to excessive heat or flame.

The symbol, shown here, indicates that this product must not be disposed of

in a standard waste container.

Federal Communication Commission Interference Statement

This equipment has been tested and found to compl y with the limits for a Class B di gital devi ce, pursuant to Part 15 of the FCC rules.
These l imits are desi gned to provide reasonable protection against harmful i nterference in a residential ins tallati on. This equipment
generates, uses and can radiate radio frequency energy and, if not instal led and used in accordance with the i nstructions, may caus e
harmful i nterference to radio communic ations. However, there is no guarantee that i nterference will not occur in a particular install ation. If
this equipment does cause harmful interference to radio or televis ion reception, which can be determined by turning the equipment off and
on, the user is enc ouraged to try to c orrect the interference by one or more of the following measures:

Reorient or relocate the receivi ng antenna.

Increase the s eparation between the equipment and receiver.

Connect the equipment into an outlet on a ci rcuit different from that to whic h the receiver i s connected.

Consult the dealer or an ex perienced radio/TV technici an for help.

FCC Caution

This devic e complies with Part 15 of the FCC Rules. Operation is s ubject to the following two conditions:

(1) this devi ce may not cause harmful interference and

(2) this devi ce must acc ept any interference received, incl uding interference that may cause undesired operation

RF Expos ure Warning

The equipment compli es with RF exposure limi ts set forth for an uncontrolled environment. The antenna(s) us ed for this transmitter must
not be c o-located or operating in conjunction with any other antenna or transmitter. You are cautioned that changes or modi ficati ons not
expressly approved by the party responsible for c ompliance c ould void your authority to operate the equipment.

IC Statement

This devic e complies with Industry Canada l ic ense-exempt RSS s tandard(s). O peration i s subjec t to the fol lowing two c onditions :

(1) this devi ce may not cause interference, and

(2) this devi ce must acc ept any interference, includi ng interference that may c ause undesired operation of the device.

Industry Canada - Class B This di gital apparatus does not ex ceed the Class B li mits for radio nois e emiss ions from di gital apparatus

as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of Industry Canada. Operation i s subj ect
to the fol lowing two c onditions : (1)thi s devi ce may not cause interference, and

(2) this devi ce must acc ept any interference, includi ng interference that may c ause undesired operation of the device.

To reduce potential radio interference to other users, the antenna type and its gain should be so chos en that the equival ent isotropicall y
radiated power (e.i.r.p.) i s not more than that permitted for s ucces sful communic ation.

RF exposure warning: The equipment compli es with RF expos ure l imits s et forth for an unc ontrolled environment. The antenna(s) us ed

for this transmitter must not be co-located or operating in conjuncti on with any other antenna or transmitter.

Le présent appareil est conforme aux CNR d’ Industrie Canada applic ables aux appareils radio exempts de li cence. L’expl oitation est
autorisée aux deux conditions s uivantes :

(1) l’appareil ne doit pas produire de brouillage, et

(2) l’appareil doit ac cepter tout interférence radioélec trique, même si cela résulte à un brouillage suscepti ble d’en compromettre le
fonctionnement.

Cet appareil numérique respecte l es li mites de bruits radioélectriques applic ables aux appareils numériques de Classe B prescrites dans
la norme sur le matériel interférant-brouill eur: “Appareils Numériques,” NMB-003 édi ctée par i ndustrie Canada. L’util is ation est soumise
aux deux conditions s uiv antes:

(1) cet appareil ne peut caus er d’ interférences, et

(2) cet appareil doit accepter toutes interférences, y comprises c elles susc eptibles de provoquer un disfonc tionnement du dis positi f.

Afin de réduire les i nterférences radio potentielles pour les autres utilis ateurs, le type d’antenne et son gain doiv ent être choi sie de telle
façon que l ’équiv alent de puissanc e isotrope émi s (e.i.r.p) n’est pas pl us grand que celui permis pour une communication établi e.

Avertissement d ’exposition RF: L’équipement est conforme aux l imi tes d’exposi tion aux RF établi es pour un envi ronnement non

supervisé. L’antenne (s) uti lis ée pour ce transmetteur ne doit pas être j umelés ou fonctionner en c onjonction avec toute autre antenne ou
transmetteur.

Note: This product is a sensi tive measurement device. For best results, us e the c ables that were provided. Keep the dev ice away from

electromagnetic noise sources, s uch as microwaves, monitors, electric motors, and appliances.

Vernier Software & Technology

13979 SW Millikan Way • Beaverton, OR 97005-2886

Toll Free (888) 837- 6437 • [phone] • Fax [phone]

[e-mail] • www.vernier.com

Rev. 3/ 16/20 21

Go Di rect, G raphical Analysi s, LabQuest , and other marks sho wn are our t rademarks or registered t rademarks in
the Un ited States. Al l other marks no t owned by us that ap pear herein are the property of thei r respective
owners, who may or may not be affiliated w ith, connected to, or s ponsored by us.

The Bluetooth®word mark and l ogos are regis tered trademarks owned by t he Bluet oot h SIG, Inc. and any use of
such marks b y Verni er Software & T echnolog y is under license. Other trademarks and trade n ames are th ose o f
their respective own ers.

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