Turning Calibration On and Off

Calibration is the process by which a known input-voltage is applied to a channel. That voltage is read from the channel. If the voltage is not the same as the known input-voltage, software is used to apply a correction-equation to the voltage value in order for the resulting value to equal to the known voltage. Software generates calibration coefficients (a slope and an intercept) and saves the values on a per-channel basis. These calibration coefficients are used in the correction-equation. Calibration is used to compensate for voltage variances due to temperature, noise, and other electrical disturbances. Features When Calibration is On, calibration is performed upon starting data collection. When Calibration is Off, calibration is NOT performed while starting data. However, DynaDAQ will still perform the correction-equation, but will use the calibration coefficients which were saved after the last calibration. If calibration had never been performed, DynaDAQ will use default calibration coefficients .

When Calibration is On and data collection is starting, you should see the "Calibrating" message in the message window (circled below in red):

The next message in the message window will be "Verifying Calibration"