Jesco MAGDOS 20-100 Operation & Maintenance Instructions Manual

Contents

Jesco MAGDOS 20-100 Operation & Maintenance Instructions Manual Manual pdf 2 page image

March 2004P h o n e : ( 5 8 5 ) 4 2 6 - 0 9 9 0 w w w . j e s c o a m e r i c a . c o m F a x : ( 5 8 5 ) 4 2 6 - 4 0 2 5SD 6.2 Operation & MaintOperation & MaintOperation & MaintOperation & MaintOperation & Maintenance Insenance Insenance Insenance Insenance Instructionstructionstructionstructionstructions MAGDOS DEDX Exposure to direct sunlight must be avoided. If thepump is installed outside, provide an enclosure toprotect it against the weather. With metering pumpsystems, particular attention must be paid to thepiping system. Refer to the System Design Guidefor more detailed information. (If in need of aSystem Design Guide, contact Jesco AmericaCorporation).Both the system designer and the operatorBoth the system designer and the operatorBoth the system designer and the operatorBoth the system designer and the operatorBoth the system designer and the operatorare responsible for ensuring that the entireare responsible for ensuring that the entireare responsible for ensuring that the entireare responsible for ensuring that the entireare responsible for ensuring that the entireplant is constructed to preventplant is constructed to preventplant is constructed to preventplant is constructed to preventplant is constructed to preventunreasonable damage to plant equipmentunreasonable damage to plant equipmentunreasonable damage to plant equipmentunreasonable damage to plant equipmentunreasonable damage to plant equipmentor building resulting from leakage oror building resulting from leakage oror building resulting from leakage oror building resulting from leakage oror building resulting from leakage ortechnical failure.technical failure.technical failure.technical failure.technical failure.It is especially important that chemical plants bedesigned to ensure the safety of maintenancepeople and operators. We recommend installingrelief valves, splashguards, containment tanks,and leakage probes with alarm relays to aid thiseffort.MAGDOS DE/DX pumps with integrated levelcontrol function are equipped with a short-circuitjack plug which must be removed beforeconnecting a level control by means of a jack plug.A weather tight cable is available if using a levelcontrol to keep the NEMA 4x protection class.Wiring of the MAGDOS metering pump must becarried out by a specialist according to the localregulations. Normally the MAGDOS is connectedwith a grounded plug. Please see the MAGDOS DE/DX Specification Sheet for all electrical data.Mounting the metering pump directly on a watermeter may result in noise level amplification. Inthis case, we recommend that you mount thepump on separate wall brackets which, for thesame reason, should be fixed to outer wallsinstead of interior walls with adjacent occupiedrooms. It is also possible to mount the pumpdirectly on the supply tank.Do not lay signal cables of water meters or0(4)...20 mA controls parallel to high-voltagecurrent or power supply lines. Supply and signallines must be laid in separate channels. In thecase of junctions, a 90Þ angle is required. If thewater meter control cable is more than 6 feet long,it must be shielded. To avoid incorrect meteringafter the process is finished, provide an electricand hydraulic interlocking system.NOTE:NOTE:NOTE:NOTE:NOTE: The MAGDOS metering pumps are notThe MAGDOS metering pumps are notThe MAGDOS metering pumps are notThe MAGDOS metering pumps are notThe MAGDOS metering pumps are notsuited for use in explosive environments.suited for use in explosive environments.suited for use in explosive environments.suited for use in explosive environments.suited for use in explosive environments.3. Safety PrecautionsThe diaphragm metering pump is designed topump various liquids into pressurized systems. Bynature, the application of these pumps maypresent circumstances under which personalhazards can exist. All personnel who may haveoccasion to install, operate, or maintain thesepumps should be provided with the opportunity toread this instruction manual and be familiar withits contents. Awareness of potential hazards canprevent accidents and injury.Danger from Liquids HandledDanger from Liquids HandledDanger from Liquids HandledDanger from Liquids HandledDanger from Liquids HandledAll systems containing liquid and/or air underpressure present the potential for unexpecteddischarge of liquid in a violent manner. Inoperation and servicing of the pump, all parts ofthe pump and attached piping which contain liquidshould be treated cautiously, until it is known withcertainty that they have been depressurized anddrained.Danger from Electrical HazardDanger from Electrical HazardDanger from Electrical HazardDanger from Electrical HazardDanger from Electrical HazardSince these pumps include electric components,the hazard of electrical shock can exist.Installation and wiring of electrical componentsshould be in accordance with the applicablecodes.Operational HazardsOperational HazardsOperational HazardsOperational HazardsOperational HazardsTo avoid personal injury, please adhere to thefollowing guidelines:1. Do not operate the pump if electrical compo-nent enclosures are not in place.2. When venting cylinders or piping during startup,liquid will be discharged under pressure. Theuse of a pressure relief valve back to thesupply tank is highly recommended. Suitablecaution should be taken to avoid contact withthe liquid and to avoid spillage or spraying ofliquid.3. Clean up any leaked or spilled liquid immedi-ately.SafetySafetySafetySafetySafety1. Before operating pump and accessories orattempting to service, become familiar withthe contents of this instruction manual.2. Observe all precautions established by plantsafety procedures.