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30-Volt Voltage Probe User Manual

Order Code: 30V-BTA

The 30-Volt Voltage Probe is used to measure electrical potentials in the range of –30 to +30 Volts. This sensor uses an internal voltage divider connected to the +/-10 volt input of the interface. Use this sensor in experiments that involve voltages larger than 10 Volts, such as when working with large solar panels.

The removable leads on the 30‑Volt Voltage Probe are heavy duty and have shrouded banana plugs to meet European safety standards.

Since this voltage probe covers such a wide voltage range, its resolution is coarser than our Differential Voltage Probe (DVP‑BTA), which we recommend for most experiments.

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.

Compatible Software

Choose a platform below to see its compatibility requirements.

LabQuest
InterfaceLabQuest App
LabQuest 3Full support
LabQuest 2 (discontinued)Full support
LabQuest (discontinued)Full support
Computers
Software
InterfaceGraphical Analysis App for Computers
Version 5.4
Logger Pro
Version 3.16
Logger Lite
Version 1.9.4
LabQuest MiniFull supportFull supportFull support
LabQuest 3Full supportFull supportIncompatible
LabQuest 2 (discontinued)Full supportFull supportFull support
LabQuest StreamFull support 1Full supportFull support 1
Go!LinkFull supportFull supportFull support
LabQuest (discontinued)Full supportFull supportFull support
LabPro (discontinued)IncompatibleFull supportFull support

Compatibility Notes

  1. Connect LabQuest Stream via USB. Wireless connection is not supported.
Chromebook
Software
InterfaceGraphical Analysis App for Chrome
Version 5.4
LabQuest MiniFull support
LabQuest 3Full support
LabQuest 2 (discontinued)Full support
LabQuest StreamFull support 1
Go!LinkFull support
LabQuest (discontinued)Full support

Compatibility Notes

  1. Connect LabQuest Stream via USB. Wireless connection is not supported.
iOS
Software
InterfaceGraphical Analysis App for iOS
Version 5.4
Graphical Analysis GW for iOS
Version 4.0.6
LabQuest StreamFull supportFull support
LabQuest 3Full support 1Full support 1
LabQuest 2 (discontinued)Full support 1Full support 1

Compatibility Notes

  1. iOS and Android devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
Android
Software
InterfaceGraphical Analysis App for Android
Version 5.4
Graphical Analysis GW for Android
Version 3.2
Google Science Journal
Version 1.2.259
LabQuest StreamFull supportFull supportIncompatible
LabQuest 3Full support 1Full support 1Incompatible
LabQuest 2 (discontinued)Full support 1Full support 1Incompatible

Compatibility Notes

  1. iOS and Android devices can only connect to LabQuest 2 or LabQuest 3 via Wireless Data Sharing.
Arduino
Software
InterfaceArduino
Vernier Arduino® Interface ShieldFull support
LabVIEW
Software
InterfaceNI LabVIEW
SensorDAQ (discontinued)Full support
Go!LinkFull support
LabQuest MiniFull support
LabQuest StreamFull support
LabQuest 3Full support
LabQuest 2 (discontinued)Full support
LabQuest (discontinued)Full support
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
CBL 2Full support 3Full support 3 4IncompatibleIncompatibleIncompatible
LabPro (discontinued)Full support 3Full support 3 4IncompatibleIncompatibleIncompatible
TI-Nspire Lab Cradle (discontinued)IncompatibleIncompatibleIncompatibleFull supportFull support

Compatibility Notes

  1. Use with TI-84 Plus calculators only.
  2. Requires an Easy to Go! adapter
  3. CBL 2 and LabPro interfaces cannot be used with TI-84 Plus CE calculators.
  4. 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 3, etc.).
  2. Start the appropriate data-collection software (Logger Pro®, LabQuest® App, or Vernier Graphical Analysis™) 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 collect data.

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

www.vernier.com/start/30v-bta

Safety

This sensor is designed for voltages up to 30 volts. It should never be used for higher voltages. Students need to use caution when performing experiments with electricity. They should use this sensor only under supervision. Students need to exercise extra caution when dealing with higher voltage and currents which can cause serious injury. Students should keep all equipment away from water and other liquids.

Videos

Calibrating the Sensor

You should not have to perform a new calibration when using the 30-Volt Voltage Probe in the classroom. The sensor will normally be automatically recognize and the proper calibration will be loaded. We have set the sensor to match our stored calibration before shipping it. To improve the accuracy, you have a couple of options. (1) Simply use the data-collection software to zero the sensor. (2) Use the software to perform a two point calibration. This method is especially useful if you want to accurately measure voltage over a narrow range.

Specifications

30-Volt Voltage Probe range

±30 V

Resolution

15 mV

Supply voltage

5 VDC

Supply current (typical)

0.2 mA

Input impedance

30 kΩ

Output voltage range

±10 V

Calibration

slope: 3.0 V/V

intercept: 0

 

Care and Maintenance

Do not wrap the cable tightly around the sensor for storage. Repeatedly doing so can irreparably damage the wires and is not covered under warranty.

How the Sensor Works

The 30-Volt Voltage Probe uses an internal voltage divider made up of a 10 kΩ resistor in series with a 20 kΩ resistor. The input voltage is applied across this voltage divider and the voltage drop over the 10 kΩ resistor is sent to the +/‑ 10 volt input of the interface. The resulting voltage is then multiplied by 3 for proper calibration.

There are zener diodes between the input and ground lines. These zener diodes will block voltages above 30 volts.

There is a resettable fuse on the ground line of the 30‑Volt Voltage Probe that will open if any significant current is drawn on that line. This could happen, for example if you were using it on a grounded interface, with a grounded power supply, and the ground lead was connected improperly to a voltage above ground potential.

Troubleshooting

For troubleshooting and FAQs, see www.vernier.com/til/2322

Warranty

Warranty information for this product can be found on the Support tab at www.vernier.com/30v-bta/#support

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

Contact Support

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

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