The key difference is that the black leads on the simple Voltage Probe (VP-BTA) are connected to ground of the interface when used. That means that if you use two of these voltage probes at the same time, the two black leads are connected to a common...
Tech Support Search
You can use the standard Voltage Probe (VP-BTA), to do Ohm's Law experiments. There are two things you need to watch out for, and for these reasons we recommend the Differential Voltage Probe (DVP-BTA), or Go Direct® Voltage Probe (GDX-VOLT), for...
The real question is: Is the black connector on the Power Amplifier (PAMP) connected electrically to the black lead of a VP-BTA ?
The answer is yes. This is true whether you are using the Power Amplifier and VP-BTA connected to a LabQuest (via t...
Both the Instrumentation Amplifier and the Differential Voltage Probe are true differential voltage measuring devices. Neither terminal is at ground potential, which is sometimes important in making connections to external circuits. However, this can...
Voltage Probe (VP-BTA)
Specifications and User Guide
Troubleshooting
Primary Test: Connect the red and black leads properly and securely, according to the experimental setup.
Secondary Test: If you suspect that the rea...
The input impedences of our voltage probes are all listed on in the LabPro Technical Reference Manual. For a normal VP-BTA voltage probe used with LabPro:
Input impedance: +/-10V input 1MΩ
Note that if one was to use a VP-DIN on a LabPro...
Experiments that are written for the Vernier Energy Sensor (VES-BTA) or the Go Direct® Energy Sensor (GDX-NRG) can be performed with standalone voltage and current probes, but you will need to set up the measurement circuit differently and create...
A small number of LabQuest 2 units shipped in the Fall of 2016 that have an improper internal calibration. These LabQuests read certain sensors poorly. The most common symptom is that the LabQuest 2 will read a number around 80°C at room temperature...
Multimeters operate differently than our sensors. Multimeters are designed to average the data and update their display only once a second or so. Our sensors, on the other hand, sample data much faster, updating several times a second. Because some p...
The output of the Vernier Power Amplifier (PAMP), is bipolar. The negative terminal is not quite at ground, because of the presence of a small current sense resistor. Current through this resistor is used to report the current delivered to the PAMP l...