8Precautions for installationInstallation work shall be performed in accordance withthe technology standard of the electric installation.GroundingA grounding connection must be made before connectingthe power plug of this product to the main power supply. If agrounded outlet is used, check the ground resistance (100Ω or less).Power supplyBe sure to connect to ground prior to connection of thepower plug to the main power supply. For disconnectionfrom ground, be sure to disconnect the power plug from themain power supply first. Be sure to connect the power cordvia any of the following breaking devices:(1) Connect the power cord via a power supply control unit.(2) Install this monitor near an electric outlet, and connectthe power cord via the power plug.(3) Connect the power cord to the breaker with contact gapof 3.0 mm or more of a distribution board. The breakershould be designed to break the current flows to andfrom all the electrodes connected to the main powersupply except the ground protective conductor.Installation place• This monitor is designed to be used indoors. This moni-tor is not operable outdoors.• Keep the both side surfaces, top surface and rear sur-face of this monitor approximately 5 cm away from thewall.• Do not mount the monitor on places subject to constantvibrations. That may cause trouble or damage.• Do not install this system in any place where it will besubjected to direct sunlight for a long time or close toany air conditioning equipment. Failure to observe thismay cause deformation, discoloration, failure, or mal-function. Please keep this product away from waterdroplets or water splashes.• Avoid the following locations for installation.• Locations where it may get wet from rain or watersplash• Locations where a chemical agent is used such as aswimming pool• Locations subject to steam and greasy fumes suchas a kitchen and in the special environment of sol-vents and inflammable gas atmosphere• Locations where radiation, x-ray, intense radio wave,or strong magnetism is produced• Locations on the sea or by the sea, and locationswhere a corrosive gas is presentScrewing• The screws must be tightened with an appropriate tight-ening torque according to the material and strength ofthe installation area.• Do not use an impact driver. Failure to observe this maydamage the screw.• When a screw is tightened, make the screw at a rightangle to the surface. After tightening the screws, per-form visual check to ensure tightening is enough andthere is no backlash.If this system is not used any more, be sure to dismantlethis system.