MaintenanceThis section provides basic maintenance information including battery replacementinstruction.WarningDo not attempt to repair or service your Meter unless you are qualified to doso and have the relevant calibration, performance test, and service information.To avoid electrical shock or damage to the Meter, do not get water inside the case.A. General ServicePeriodically wipe the case with a damp cloth and mild detergent. Do not useabrasives or solvents.To clean the terminals with cotton bar with detergent, as dirt or moisture in theterminals can affect readings.Turn the Meter off when it is not in use.Take out the battery when it is not using for a long time.Do not use or store the Meter in a place of humidity, high temperature, explosive,inflammable and strong magnetic field.Model UT211: OPERATING MANUAL26