They forgot to close the window at night, and it was cold in the morning. They started working right away without waiting for the room to warm up. He wrote an error message about the temperature difference and asked for calibration. They did the magnetic calibration, but they didn't do the contact calibration. The device doesn't allow contact calibration. I heated the room to 30 degrees, and the detector heated up to 42 degrees, but it still doesn't allow calibration. Please help me decipher the error message. Thank you
