Appropriate and intended useForeseeable misuse 9© Lutz-Jesco GmbH 2015Subject to technical changes.150225BA-10221-02-V03Stepper Motor-driven Diaphragm Dosing Pump MAGDOS LK Operating Instructionsn Through-suction at installation without back-pressure valvesn Damage due to undamped acceleration mass forcesn Exceeding the admissible pressure on the suction and discharge sidesn Using damaged parts3.6.3 Faulty electrical installationn Connecting the mains voltage without a protective earthn Unsecured mains or one that does not conform to standardsn Not possible to immediately or easily disconnect the power supplyn Wrong connecting cables for mains voltagen Dosing pump accessories connected to wrong socketsn Protective earth removed3.6.4 Faulty commissioningn Commissioning with damaged plantn Shut-off valves closed at commissioningn Closed suction or pressure line, e.g. due to blockagesn Personnel was not informed before commissioningn System was recommissioned after maintenance without all theprotective equipment and fixtures, etc. being reconnected.n Inadequate protective clothing or none at all3.6.5 Faulty operationn Protective equipment not functioning correctly or dismantledn Modification of the dosing pump without authorityn Ignoring operational disturbancesn Elimination of operational disturbances by personnel withoutadequate qualificationsn Deposits in the dosing head due to inadequate purging, particularlywith suspensionsn Bridging the external fusen Operation made more difficult due to inadequate lighting or machinesthat are difficult to accessn Operation not possible due to dirty or illegible display of the dosingpumpn Delivery of dosing media for which the system is not designedn Delivery of particulate or contaminated dosing median Inadequate protective clothing or none at all3.6.6 Faulty maintenancen Carrying out maintenance during ongoing operationn Carrying out work that is not described in the operating instructionsn No adequate or regular inspection of correct functioningn No replacement of damaged parts or cables with inadequateinsulationn No securing against reactivation during maintenance workn Using cleaning materials that can cause reactions with the dosingmedian Inadequate cleaning of the systemn Unsuitable purging mediumn Unsuitable cleaning materialsn Cleaning materials left in system sectionsn Using unsuitable cleaning equipmentn Using the wrong spares or lubricantsn Contaminating the dosing medium with lubricantn Installing spares without following the instructions in the operatingmanualn Blocking venting orificesn Pulling off sections of the plantn Contamination at installation without a dirt trapn Mixing up the valvesn Mixing up the sensor linesn Not reconnecting all the linesn Damaging or not installing all the sealsn Not renewing sealsn Not paying attention to safety data sheetsn Inadequate protective clothing or none at all3.6.7 Faulty decommissioningn Not completely removing the dosing mediumn Dismantling lines while the dosing pump is runningn Device not disconnected from the power supplyn Using the wrong dismantling toolsn Inadequate protective clothing or none at all3.6.8 Faulty disposaln Incorrect disposal of dosing media, operating resources and othermaterialsn No labelling of hazardous substances