Hitachi CM721F User Manual - Page 5

CAUTION for 200 - 240V operation only This equipment relies on the protective devices in the building installation for short-circuit and overcurrent protection. Refer to the following table for the suitable number and location of the protective devices which should be provided in the building installation. Informative examples of protective devices in single - phase equipment or sub - assemblies Protection Minimum number of Location against fuses or circuit - breaker poles Case A: Equipment to be Earth faults 1 Phase conductor connected to POWER SYSTEMS Overcurrent 1 Either of the two with earthed neutral reliably conductors identified, except for Case C below. Case B: Equipment to be Earth faults 2 Both conductors connected to any supply, including Overcurrent 1 Either of the two IT POWER SYSTEMS and supplies conductors with reversible plugs, except for Case C below. Case C: Equipment to be Earth faults 2 Each phase conductor connected to 3-wire power systems Overcurrent 2 Each phase conductor with earthed neutral reliably identified. Verify that the protective devices in the building installation meets the conditions in the table prior to installing the equipment. BE CAREFUL OF POWER CORD CONNECTION ! Before inserting the plug of the power cord into a receptacle of the correct voltage, check that the connection portion of the power cord is clean (with no dust). Then, insert the plug of power cord to a receptacle firmly, otherwise it may cause electrical shock or fire. REMOVE THE POWER CORD FOR COMPLETE SEPARATION ! For complete separation from the power source, remove the power cord from the monitor or from the wall outlet. AVOID FREQUENT POWER ON-OFF SWITCHING ! DO NOT repeat OFF and ON in a short period. It may cause blurred colors or distortion of the displayed pattern. BE CAREFUL OF STATIC ELECTRICITY ON CRT SURFACE ! To prevent electrical shock by the static electricity on the CRT surface, disconnect the power cord at least 30 SECONDS AFTER turning off the power. ABOUT CLEANING This monitor has a non-glare and anti-electrostatic treatment on the surface of the screen. Use water or alcoholic solvent with soft cloth like gauze to clean the surface of the screen. NEVER use abrasive, glass cleaner containing highly concentrated ammonia and strong base chemicals since they damage the surface treatment. Clean the cabinet and controls with a lightly moistened soft cloth. DO NOT use aerosol sprays, solvents or abrasive cleaners. 4