The answer to this question is somewhat confusing, but there is an easy solution. Note: This information below assumes you are using sensors with memory chips inside them that connect directly to the LabPro with no adapter. If you are using older sensors, with an adapter, or simple sensors without memory chips, this does not apply.

Our sensors are approximately calibrated when you get them, but for best results you may want to calibrate them individually. When you connect a sensor that you have calibrated individually to a LabPro connected to a computer, the calibration process works seamlessly. The program uses the new calibration, not the one it came with.

If you use the same sensor remotely, things get a little tricker. Here is what usually causes the trouble:

When you do remote data collection, the new, custom calibration is not used because the calibration was stored in Logger Pro, not on the sensor. LabPro uses the calibration stored on the sensor, the approximate calibration.

To be able to use the new, custom calibration, you need to store the calibration on the sensor. To do this, follow these steps after you have done the calibration:

  1. Click the LabPro icon on the toolbar to get to the Sensor Setup dialog box.
  2. Click on the sensor you are working with and you will get a pull-down menu.
  3. Select Calibrate and choose Calibration Storage from the list.
  4. Click Write Calibration to Sensor. Check that the default calibration is the same page as the one calibration you are writing to this sensor (this is the default).

The calibration is now stored on the sensor and will be used when you do remote data collection.