The spring constant of the Vernier Dynamic Carts with plunger is somewhere between 3.5 and 4.2 N/cm. The spring constant on the plunger of a Sensor Cart seems to be about 2.6 to 2.8 N/cm. Ironically, everything you need to measure the spring cons...

If a Current Probe (DCP-BTA) was subjected to more than 0.6A, it will burn out a resistor inside the sensor. This can happen when students don't get the value they want, so they just keep increasing the current on a power supply. Typically a blown...

Yes. We have a project from Dave's garage that lets you connect one Vernier sensor to Pachube. We call it VS2PB. Details on the application are below. It is available on request by sending a message to pachube@vernier.com. Part I. Introduction...

Logger Pro version 3.8.4 and newer has several improvements to prevent BlueTooth-related errors. If you have an older version, the first thing to try would be upgrading to the new version of Logger Pro. The updater is a free download from our web sit...

This is a problem with the calibration of the LabQuest Mini's DAQ. It will need to come in for repair. Please contact our technical support team at info@vernier.com to arrange a repair. Symptoms will be phantom sensors or two identical sensors tha...

Logger Pro makes default calibrations available for all common units for supported sensors. Most Vernier sensors are auto-ID sensors. Auto-ID sensors can be either Smart sensors or Resistor-ID sensors. Smart sensors contain a memory chip that stores...

There are four possible explanations: It was manufactured before 2008, which is when it became auto-id. If you are trying to use a Drop Counter with a LabPro, the Drop Counter will not auto-id. This is because the firmware in the LabPro pre-dates th...

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130 x 50 x 1.5 mm external dimension. There is one 50 mm bar, and also a series of 13 alternating clear and black bars, with an interval of 10 mm. The cart picket fence fits Vernier dynamics carts only. ...

Logger Pro To change the number of points in the derivative calculation, open the File menu and choose Settings For FILENAME. Then adjust the number of points for derivative calculations and select OK. LabQuest To change the number of points in th...