By default, the scale displays your patient's weight in kilograms (kg). To change the display to pounds (lbs.): Make sure the Enable key indicator is off. Press and hold the Zero control. After approximately 5 seconds, as you continue to hold the Zero control, press and hold the Weigh control. When you hear a beep, release both controls. The display will be in configuration mode, with the current unit setting (lbs. or kg) highlighted. Press and release the Scale Weigh control to move through the settings. When you reach the applicable setting, release the control and wait approximately 10 seconds, until you hear a beep. The display will store the new configuration and exit configuration mode.