Vernier GW-TEMP User manual

Vernier Go Wireless®Temp
Order Code GW-TEMP
The Vernier Go Wireless Temp is a rugged,
general-purpose, wireless temperature sensor
that you can use just like a thermometer. Its
durability, temperature range, and wireless
capability make it perfect for a variety of uses,
including:
Science fair projects
Monitoring environmental conditions
Monitoring the temperature in your
fish tank or greenhouse
Measuring the efficiency of a
Thermos™
Measuring the temperature of the air
coming from your air conditioner or
furnace
What is Included with Go Wireless Temp
Go Wireless Temp
USB Charging Cable
Quick-start guide
Graphical Analysis app (free download from the App Store or Google Play)
Charging Go Wireless Temp
Connect Go Wireless Temp to the included USB Charging Cable and any USB
device for two hours.
You can also charge up to eight Go Wireless Temp probes using our Go Wireless
Charging Station, sold separately (order code: GW-CRG). An LED on each Go
Wireless Temp indicates charging status.
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Supported Devices
Go Wireless Temp can be used with a supported Bluetooth®Smart Ready mobile
device* running one of our apps.
iPad®(3rd generation or newer), iPad mini™, and iPad Air®
iPhone®(4S or newer)
iPod®touch (5th generation or newer)
LabQuest 2 (for support requirements, see www.vernier.com/til/3134/)
For Android™devices, see www.vernier.com/ga-app
Data-Collection Apps
Go Wireless Temp can be used with one of the following apps:
Graphical Analysis for iOS devices (version 2.0 or newer)
Available as a free download on the App Store, use this app for advanced data
collection and analysis. For more information, see www.vernier.com/ga-app
Graphical Analysis for Android (version 2.0 or newer)
Available as a free download on the Google Play, use this app for advanced data
collection and analysis. For more information, see www.vernier.com/ga-app
LabQuest 2 app (version 2.3.1 or newer)
For more information, see www.vernier.com/labq2
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.
Specifications
Temperature range –40 to 125°C (handle: –10 to 45°C)
Maximum temperature that the sensor
can tolerate without damage 150°C
Minimum temperature that the sensor
can tolerate without damage: –55°C
Resolution 0.07°C
Accuracy ±0.5°C
Response time 20 s (to 90% of full reading in water)
Maximum wireless range 30 m unobstructed
Warning
Do not put in flame.
*For a full list of supported mobile devices, see www.vernier.com/ga-app

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How Go Wireless Temp Works
This probe uses a solid state temperature sensor, located at the tip of the probe, to
measure temperature. The sensor outputs a count with each increment of the count
representing 0.0625C. This information is passed to the host application over the
wireless connection.
Go Wireless Temp has one button and three LEDs.
Button
Press the button once to turn on Go Wireless Temp. A red LED indicator
flashes when the unit is on.
Press and hold the button for more than three seconds to put Go Wireless Temp
into sleep mode. The red LED indicator stops flashing when sleeping.
Press and hold the button for more than eight seconds to reset the system. This
should not be necessary in normal operation.
Blue LED
Indicates charging status when Go Wireless Temp is connected to the Charging
Cable or Charging Station.
On – charging in progress
Off – charging is complete
Red LED Flashing
Indicates Go Wireless Temp is awake and ready to connect.
Green LED Flashing
Indicates Go Wireless Temp is connected and taking data.
Red and Green LED Off
Indicates Go Wireless Temp is in the lowest power sleep mode.
Collecting Data
Press the power button on Go Wireless Temp to turn it on. The LED on Go Wireless
Temp will flash red.
Collecting Data with Graphical Analysis App
1. Open Graphical Analysis.
2. Tap Create Experiment and choose Wireless Sensors.
3. Select Go Wireless Temp from the list of available sensors. When paired with the
software, the LED on Go Wireless Temp will flash green.
4. Collect data as desired.
Collecting Data with LabQuest 2 App
1. Choose New from the File menu.
2. On the Meter screen, choose Go Wireless Setup from the Sensors menu.
3. Select Go Wireless Temp from the list of available sensors. When paired with the
software, the LED on Go Wireless Temp will flash green.
4. Collect data as desired.
Calibration Information
There is not an option to calibrate Go Wireless Temp. Each device is carefully
calibrated as part of the manufacturing process.
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Battery Information
Go Wireless Temp contains a small lithium-ion battery in the handle. 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:
GW-BAT-100).
Use only the Vernier Go Wireless Charging Cable or Go Wireless Charging Station
to charge the battery.
Storage and Maintenance of Go Wireless Temp
To store Go Wireless Temp 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 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 Go Wireless Temp in an area that is not exposed to temperature
extremes.
Water Resistance
Go Wireless Temp can be submerged in water for limited periods of time. It has
been tested to a depth of 1 m for up to 30 minutes. However, submerging the sensor
impacts the radio operation by absorbing much of the energy. This may make it
difficult or impossible to connect to the sensor while submerged, particularly if there
are electrically noisy signals nearby such as pumps or motors.
Chemical and Water Tolerance
The metal shaft is constructed from grade 316
stainless steel.‡This high-grade stainless steel
provides a high level of corrosion resistance for
use in the science classroom. Here are some
general guidelines for usage:
The probe handle is constructed of molded
plastic. While this material is chemical
resistant, we recommend that you avoid
submerging the probe beyond the stainless
steel portion in anything but water.
Always wash the probe thoroughly after use.
The probe shaft can be left continuously in
water at temperatures within the range of
–40C to 125C. Continuous usage in
saltwater will cause only minor discoloration
of the probe shaft, with no negative effect on
performance.
‡Grade 316 stainless steel has a composition of 0.08% carbon, 2.0% manganese, 0.75% silicon, 0.04%
phosphorus, 0.03% sulfur, 16-18% chromium, 10-14% nickel, 2-3% molybdenum, and 0.1% nitrogen.
Maximum acid exposure time
1 M HCl 20 min
2 M HCl 10 min
3 M HCl 5 min
1 M H2SO448 hours
2 M H2SO420 min
3 M H2SO410 min
1 M HNO348 hours
2 M HNO348 hours
3 M HNO348 hours
1 M CH3COOH 48 hours
2 M CH3COOH 48 hours
3 M CH3COOH 48 hours
1 M H3PO448 hours
2 M H3PO448 hours
3 M H3PO448 hours

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You can leave the probe shaft continuously in most organic compounds, such as
methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, n-hexane, lauric acid,
paradichlorobenzene, phenyl salicylate, and benzoic acid. The probe shaft should
not be left in n-pentane for more than 1 hour.
The probe shaft can be left in strong basic solutions, such as NaOH, for up to
48 hours, with only minor discoloration. We do not recommend usage in basic
solutions that are greater than 3 M in concentration.
The chart provides the maximum length of time we recommend for probe shaft
exposure to some common acids. Probes left in an acid longer than these times
may bubble and/or discolor, but will still be functional. We do not recommend
probes be left to soak in any acid longer than 48 hours.
Replacement Parts
Vernier Software & Technology
Part Order code
Go Wireless Charging Cable GW-CB
Go Wireless Temp (sensor only) GW-TEMP-NP
Go Wireless Battery GW-BAT-100
Related Products
Go Wireless Charging Station (order code: GW-CRG)
Multi-sensor charging capability for your Go Wireless Temp probes. The
Go Wireless Charging Station is the perfect solution for charging and storing your
Go Wireless Temp probes. For more information, see www.vernier.com/gw-crg
Go Wireless Temp Teacher Pack (order code: GW-TEMP-TP)
Includes eight Go Wireless Temp probes and one Go Wireless Charging Station. For
more information, see www.vernier.com/gw-temp
Disposal Instruction
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.
The symbol, shown here, indicates that this product must not be
disposed of in a standard waste container.
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. The battery
is covered by a one-year w
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Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These
limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Caution
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference and
(2) this device must accept any interference received, including interference that may cause undesired operation
RF Exposure Warning
The equipment complies with RF exposure limits set forth for an uncontrolled environment. The antenna(s) used for this transmitter must not
be co-located or operating in conjunction with any other antenna or transmitter.
You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to
operate the equipment.
IC Statement
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this
device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired
operation of the device.
Industry Canada - Class B This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set
out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of Industry Canada. Operation is subject to the
following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference
that may cause undesired operation of the device. To reduce potential radio interference to other users, the antenna type and its gain should
be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication.
RF exposure warning: The equipment complies with RF exposure limits set forth for an uncontrolled environment. The antenna(s) used for
this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est
autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage, et (2) l’appareil doit accepter tout interférence
radioélectrique, même si cela résulte à un brouillage susceptible d’en compromettre le fonctionnement.
Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe B prescrites dans
la norme sur le matériel interférant-brouilleur: “Appareils Numériques,” NMB-003 édictée par industrie Canada. L’utilisation est
soumise aux deux conditions suivantes: (1) cet appareil ne peut causer d’interférences, et (2) cet appareil doit accepter toutes interférences,
y comprises celles susceptibles de provoquer un disfonctionnement du dispositif. Afin de réduire les interférences radio potentielles pour les
autres utilisateurs, le type d’antenne et son gain doivent être choisie de telle façon que l’équivalent de puissance isotrope émis (e.i.r.p) n’est
pas plus grand que celui permis pour une communication établie. Avertissement d’exposition RF: L’équipement est conforme aux limites
d’exposition aux RF établies pour un environnement non supervisé. L’antenne (s) utilisée pour ce transmetteur ne doit pas être jumelés ou
fonctionner en conjonction avec toute autre antenne ou transmetteur.
Vernier Software & Technology
13979 S. W. Millikan Way Beaverton, OR 97005-2886
Toll Free [phone] [phone] FAX [phone]
[email protected] www.vernier.com
Rev. 3/31/2015
Go Wireless and Graphical Analysis are our trademarks in the United States. All other marks not owned by us that appear
herein are the property of their respective owners, who may or may not be affiliated with, connected to, or sponsored by
us.
Printed on recycled paper.