Handbook - Eurotherm Ltda

T820 HANDBOOK2.1.2Installation safety requirementsCautionIn order to comply with the requirements of BS EN61010, the voltage applied across terminals may not exceed thoseterminals’ isolation voltage. For terminals specified as having no isolation, the maximum permissible voltage is30V ac or 50 V dc.PERSONNELInstallation must ONLY be carried out by qualified personnel.POWER ISOLATIONThe installation must include a power isolating switch or circuit breaker. This device should be in close proximity(1 meter) to the controller, within easy reach of the operator and marked as the disconnecting device for theinstrument.CONDUCTIVE POLLUTIONElectrically conductive pollution (e.g. carbon dust, water condensation) must be excluded from the cabinet in whichthe controller is mounted. To secure a suitable atmosphere in conditions of conductive pollution, fit an air filter to theair intake of the cabinet. Where condensation is likely, include a thermostatically controlled heater in the cabinet.VENTILATIONEnsure that the enclosure or cabinet housing the unit provides adequate ventilation/heating to maintain the operatingtemperature of the instrument.PRECAUTIONS AGAINST ELECTROSTATIC DISCHARGECautionCircuit boards inside the unit contain components which can be damaged by static electrical discharge. Before anycircuit board is removed or handled, all electrostatic precautions must be observed, by ensuring that the handler, theinstrument and the circuit board are all at the same potential.2.1.3Keeping the product safeTo maintain the unit in a safe condition, observe the following instructions.MISUSE OF EQUIPMENTIf the equipment is used in a manner not specified in this handbook or by the distributor, the protection provided by theequipment may be impaired.SERVICE AND REPAIRSExcept for those parts detailed in the Service section, this unit has no user-serviceable parts. Contact the nearestmanufacturer’s agent for repair.Chapter 2Page 2 - 2HA029131Issue 3 Feb 08