Your LOGiT logger is factory calibrated to an accuracy given in the logger specifications. However, there may be times when you wish to adjust the calibration of your logger. NIST traceable calibration is available at the factory for an additional cost. The LOGiTpc software provides you with a single point offset calibration. This calibration can be used to increase the accuracy of your logger for a small data range. For instance, if your application calls for logging temperature between 20F and 32F, you may want to calibrate your logger at 26F.
Note: Calibrating the logger erases the data that is stored in logger memory.
To calibrate your LOGiT logger, select Calibrate… from the Logger menu. For extra security, calibration is password protected. You must enter the correct password in the Calibration Password window before you’re allowed to calibrate the unit. The Password Calibration window also allows you to change the password.
Once the password is entered correctly, a window asking you to select a channel pops up. Select the channel you would like to calibrate and click OK. Each channel must be calibrated separately.
The User Calibration window (shown below) will appear.
To perform the calibration:
1. Connect the reference sensor and the LOGiT sensor you are calibrating to the same source. For temperature and humidity, it is best to place the logger or the sensor in a stable chamber.
2. Bring the setup to the point at which you would like to perform the calibration.
3. Wait for your reference instrument and the reading in the "Logger Reading" box to stabilize.
4. Enter the reading from your reference instrument in the "Reference Instrument" box, and hit the Calibrate! button.