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Surface Temperature Sensor User Manual

Order Code: STS-BTA

The Surface Temperature Sensor is designed for use in situations in which low thermal mass or flexibility is required. Special features include an exposed thermistor that results in an extremely rapid response time.

Typical uses for the Surface Temperature Sensor include the following:

  • Skin temperature measurements
  • Human respiration studies
  • Specific heat experiments
  • Heat transfer experiments
  • Friction and energy studies

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

  • Vernier Surface Temperature Sensor

Compatible Software and Interfaces

Choose a platform below to see its compatibility requirements.

LabQuest 2

Full Support

The Surface Temperature Sensor is fully supported with LabQuest 2 (version 2.8.5), a standalone data logger with built-in graphing and analysis software.

Learn more about LabQuest 2 »

Computers
Software
InterfaceGraphical Analysis 4 for Computers
Version 4.10
Logger Pro
Version 3.16
Logger Lite
Version 1.9.4
LabQuest StreamFull support 1Full supportFull support 2
EasyLinkIncompatibleFull support 3Full support 3
Go!LinkFull supportFull supportFull support
LabQuest 2Full supportFull supportFull support
LabQuest MiniFull supportFull supportFull support

Compatibility Notes

  1. Connect LabQuest Stream via USB. Future software updates will support connection via Bluetooth® technology
  2. Connect LabQuest Stream via USB. Wireless connection is not supported.
  3. Requires an Easy to Go! adapter
Chromebook
Software
InterfaceGraphical Analysis 4 for Chrome
Version 4.10
EasyLinkFull support 1
Go!LinkFull support
LabQuest 2Full support
LabQuest MiniFull support
LabQuest StreamFull support 2

Compatibility Notes

  1. Requires an Easy to Go! adapter
  2. Connect LabQuest Stream via USB. Future software updates will support connection via Bluetooth® technology
iOS
Software
InterfaceGraphical Analysis 4 for iOS
Version 4.10
Graphical Analysis GW for iOS
Version 4.0.6
LabQuest 2Full support 1Full support 1
LabQuest StreamFull supportFull support

Compatibility Notes

  1. iOS and Android devices can only connect to LabQuest 2 via Wireless Data Sharing.
Android
Software
InterfaceGraphical Analysis 4 for Android
Version 4.10
Graphical Analysis GW for Android
Version 3.2
Google Science Journal
Version 1.2.259
LabQuest 2Full support 1Full support 1Incompatible
LabQuest StreamFull supportFull supportIncompatible

Compatibility Notes

  1. iOS and Android devices can only connect to LabQuest 2 via Wireless Data Sharing.
Arduino
Software
InterfaceArduino
Vernier Arduino® Interface ShieldFull support
LEGO MINDSTORMS
Software
InterfaceLEGO® MINDSTORMS® EV3
Version 1.1
LEGO® MINDSTORMS® NXT
Version 2.0
NXT Sensor AdapterFull supportFull support
LabVIEW
Software
InterfaceNI LabVIEW
Go!LinkFull support
SensorDAQFull support
Vernier myDAQ AdapterFull support 1
LabQuest MiniFull support
LabQuest StreamFull support
LabQuest 2Full support

Compatibility Notes

  1. You can only read the raw count/raw voltage output by this sensor. You must do the programming to convert to proper sensor units.
Original LabQuest
Software
InterfaceLabQuest App for Original LabQuest
Version 1.7.6
EasyLinkFull support 1
Go!LinkFull support

Compatibility Notes

  1. Requires an Easy to Go! adapter
Texas Instruments
Software
InterfaceEasyData
Version 2.4/4.0/5.2
DataMate
Version 1.15
TI-84 SmartViewDataQuest
Version 4.2
TI-Nspire Software
EasyLinkFull support 1IncompatibleFull support 2Full supportFull support 2
Go!LinkFull support 1 3IncompatibleFull supportFull support 3Full support
TI-Nspire Lab CradleIncompatibleIncompatibleIncompatibleFull supportFull support
CBL 2Full support 4Full support 4 5IncompatibleIncompatibleIncompatible

Compatibility Notes

  1. Use with TI-84 Plus calculators only.
  2. Requires an Easy to Go! adapter
  3. Requires a Go! to Easy adapter
  4. CBL 2 and LabPro interfaces cannot be used with TI-84 Plus CE calculators.
  5. DataMate cannot be used with color screen TI-84 Plus calculators; use EasyData with these calculators.

Getting Started

  1. Connect the sensor to the interface (LabQuest Mini, LabQuest 2, etc.).
  2. Start the appropriate data-collection software (Logger Pro, Logger Lite, LabQuest App) if not already running, and choose New from File menu.

The software will identify the sensor and load a default data-collection setup. You are now ready to continue your experiment.

If you are collecting data using a Chromebook™, mobile device such as iPad® or Android™ tablet, or a Vernier wireless sensor or interface, please see the following link for up-to-date connection information:

www.vernier.com/start/sts-bta

Using the Product

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

The Surface Temperature Sensor is for use in air and water only. For temperature measurements in harsher environments that require a more durable probe, we recommend our Stainless Steel Temperature Probe (order code TMP-BTA).

Videos

Calibration

It should not be necessary to perform a calibration when using this sensor. It is calibrated before it ships. However, you can calibrate the sensor using Logger Pro 3.3. or newer. Note: Calibration can only be done on computers running Logger Pro. For more information, see www.vernier.com/til/1310

Specifications

Temperature range

–25 to 125°C (–13 to 275°F)

Maximum temperature that the sensor can tolerate without damage

150°C

13-bit resolution

  • 0.04°C (–25 to 0°C)
  • 0.02°C (0 to 40°C)
  • 0.05°C (40 to 100°C)
  • 0.13°C (100 to 125°C)
  • 0.08°C (–25 to 0°C)

12-bit resolution

  • 0.08°C (–25 to 0°C)
  • 0.03°C (0 to 40°C)
  • 0.1°C (40 to 100°C)
  • 0.25°C (100 to 125°C)

10-bit resolution

  • 0.32°C (–25 to 0°C)
  • 0.12°C (0 to 40°C)
  • 0.4°C (40 to 100°C)
  • 1.0°C (100 to 125°C)

Temperature sensor

20 kΩ NTC Thermistor

Accuracy

±0.2°C at 0°C, ±0.5°C at 100°C

Response time
(time for 90% change in reading)

50 seconds (in still air)

  • 20 seconds (in moving air)

Probe dimensions: probe length (handle plus body)

  • 15.5 cm

How the Sensor Works

This probe uses the 20 kΩ NTC Thermistor, which is a variable resistor. When the temperature increases, the resistance decreases non-linearly. The best-fit approximation to this nonlinear characteristic is the Steinhart-Hart equation. At 25°C, the resistance is approximately 4.3% per °C. The interface measures the resistance value, R, at a particular temperature and converts the resistance using the Steinhart-Hart equation:

T = [K0 + K1(ln 1000R) + K2(ln 1000R)3]-1 – 273.15

where T is temperature (°C), R is the measured resistance in kΩ, Ko =1.02119 × 10-3, K1 = 2.22468 × 10-4, and K2 = 1.33342 × 10-7. Our programs perform this conversion and provide readings in °C (or other units, if you load a different calibration).

Troubleshooting

First check that the sensor is responding: Connect the sensor and start the data‑collection program. Hold the tip of the sensor in your hand to warm it and check that the temperature changes.

For additional troubleshooting and FAQs, see www.vernier.com/til/1391

Repair Information

If you have watched the related product video(s), followed the troubleshooting steps, and are still having trouble with your Surface Temperature Sensor, contact Vernier Technical Support at support@vernier.com 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.

Contact Support

Fill out our online support form or call us toll-free at 1-888-837-6437.

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