The Calibration view shows one channel on the whole screen. The shown signal amplitude is defined via Amplitude for Calibration [v]. If the list of channels in Calibration mode is empty, stop calibration and press Instruments to define the channels you want to view. The offset of the signal can be changed while the calibration is running. IMAGO Record adds this offset to the raw signal to compensate an offset. The amplitude in Calibration window is Volts. For easier offset trimming, the amplitude is also shown in a digital display.