3. BASIC REQUIREMENTS, OPERATIONALSAFETYIn the safety service scope, the N30O meter meets the requirements ofthe EN 61010-1 standard.Mentioned below applied symbols mean:- especially important, one must acquaint with this informationbefore connecting the meter. The non-observance of noticesmarked by this symbol can occasion injures of the personneland a damage of the instrument.- one must take note of this when the instrument is workinginconsistently to the expectations. Possible consequencesif disregarded.Observations concerning the operational safety· All operations concerning transport, installation, and commissioningas well as maintenance, must be carried out by qualified, skilledpersonnel, and national regulations for the prevention of accidentsmust be observed.· Before switching the meter on, one must check the correctnessof connections.· The meter is designed to be installed and exploited inelectromagnetic industrial environment conditions.· When connecting the supply, one must remember that a switch or acircuit-breaker should be installed in the building. This switch shouldbe located near the device, easy accessible by the operator, andsuitably marked as an element switching the meter off.· Non-authorized removal of the housing, inappropriate use, incorrectinstallation or operation, creates the risk of injury to personnel ormeter damage.For more detailed information, please study the User’s Manual.