PIPPIN can be recalibrated from the keyboard while it is being charged. This may be useful to correct for wear or different operating surfaces. This should not normally be necessary but it may help in certain very specialised situations. If you think you need to change PIPPIN's calibration, contact Swallow Systems for our leaflet "changing PIPPIN's calibration" document number XPIN 010. Calibration changes can only be made when PIPPIN is on charge and the correct password has been entered.