63. PREPARING THE CONTROLLER FOR OPERATIONWhen unpacking the controller, please check whether the typeand version code on the data plate correspond to the order.3.1. SecurityThe REC-ZK60 controller fulfils requirements concerning thesecurity of electrical measuring automation instruments acc.to EN 61010-1 standard requirements concerning the resistance again-st electromagnetic noise acc. to EN 61000-6-2 standard and emissionof electromagnetic noise occurring in the industrial environmentacc. to EN 61000-6-4 standard.BASIC REQUIREMENTS, SAFETY INFORMATIONSymbols located in this service manual mean:WARNING!Warning of potential, hazardous situations.Especially important. One must acquaint with thisbefore connecting the instrument.The non-observance of notices marked by thesesymbols can occasion severe injuries of thepersonneland the damage of the instrument !CAUTION!Designates a general useful note. If you observe it,handling of the controller is made easier.One must take note of this, when the instrumentis working inconsistently to the expectations.Possible consequences if disregarded !In the security scope the REC-ZK60 controller meets the require-ments of the EN 61010 -1 standard.Remarks concerning the operator safety:1. General- The instrument is destined to be mounted on a 35 mm rail