Cleaning, Disinfection and Maintenance of Your ECG Machine : Note : Before the cleaning, the power of the equipment should be cut off, if AC power supply is connected, it should be cut off and the power cable and patient cable should be removed. Cleaning of the Main Unit and Patient Cable:  Soak the soft and clean lint free cloth in mild soapsuds or in the non-corrosive washing solution after dilution, wipe the surface of the electrocardiograph and patient cable and use the clean and dry soft cloth to clean. Cleaning of the Electrodes:  After the using of electrodes, erase the conductive ointment with the clean soft cloth; disconnect the suction bulb and metal cup of the chest electrode and the electrode plate and the clamp, wash them with clean warm water (lower than 35℃) and make sure that there is no residual conductive ointment; natural drying or clean with clean and dry soft cloth. Cleaning of the Print Head:  Dirty and soiled thermo sensitive print head will affect the definition of the record; therefore the user should clean the surface of the print head periodically (at least once a month) Open the recorder casing and remove the paper. Wipe the print head gently with a clean soft cloth damped in a little75% alcohol. For the stubborn stain, soak it with a little alcohol first andwipe it off with a clean soft cloth; after natural drying, load the record paper and shut the casing of the recorder. CAUTION :- Prevent the detergent from infiltrating into the electrocardiograph while cleaning; do not dip the equipment or its accessories into liquid in any case. It is prohibited to clean the equipment with rough material and avoid the scratching of the electrodes. Avoid any remaining detergent on the surface of the equipment and patient cable after .