Colorie meter ci not setting zero

If your calorimeter is not setting to zero or displaying results, first check that the instrument is properly connected, the measuring chamber is clean, and the required calibration procedure has been completed. Ensure the sample is correctly placed and all settings are entered as specified in the user manual. If the issue persists, restart the instrument and perform a zero adjustment or calibration. If it still fails, contact the manufacturer's technical support for inspection.