DRAFT 7/12/05 - MHz Electronics, Inc

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SH-110 Dry Scroll Vacuum PumpDRAFT 7/12/05InstallationSafetyDo not remove or modify any safety or insulating equipmentfrom the pump. To do so may create a serious safetyhazard and may void the warranty.WARNINGCAUTION❑ This pump is capable of pumping airand inert gases only. It is not designedto pump explosive, flammable, corrosiveor particulate forming gases. Theycan cause bodily injury, explosion, orfire.❑ Install in an area that is not exposedto rain, steam, or excessive humidity.They can cause electric shock, shortcircuits, and severe bodily injury.❑ Before reconfiguring the pumpvoltage, or inspecting or servicing thepump, be sure the electrical supply isdisconnected.❑ The gas ballast must be sealed wheneverpumping any gas not intended tobe vented to the atmosphere.Although the pump can pump traceparticulates normally found in theatmosphere, it is not designed toprocess solids, chemicals, powders,solvents, condensates, or other particulates.They can damage the equipment,degrade its performance, or shorten itsuseful life.CAUTIONElectrical ConnectionsThe pump can be configured for low voltage, 100 VAC to115 VAC, or for high voltage, 200 VAC to 230 VAC.The pump as delivered from the factory is configured forlow voltage. To change the pump voltage follow this procedure:WARNINGDo not block the fan ducts. Blockingthese ducts can cause pump overheating.A pump surface temperature inexcess of 65 °C (150 °F) is potentiallydamaging. If such conditions areobserved, turn the pump off and allow itto cool. Disassemble, inspect for damage,and repair, if necessary.Risk of electric shock. Disconnect thepump from electrical power mainsbefore attempting to change the voltageconfiguration.1. Verify your electrical supply voltage.2. Use a small flat blade screwdriver to release the fuseholder from the power entry module.3. Carefully pop out the white plastic assembly andreinsert with the desired operating voltage showingoutward.4. Reinsert the fuse holder into the power entry module.Startup1. Check that the inlet screen is installed before beginningoperation.WARNINGDo not insert a finger or any foreignobject in the path of the fan; seriouspersonal injury may result or the pumpmay be damaged.2. Operate the pump at an ambient temperature of 5 °Cto 40 °C (41 °F to 104 °F), otherwise damage to thepump or shortened operating life may result.18
SH-110 Dry Scroll Vacuum PumpPower CordSeveral power cord options are available from yourVacuum Technologies dealer. Descriptions of the availablepower cords and their ordering numbers are given inTable 2.NOTETable 2For high voltage operation, the pumpmust be connected to the power supplyusing a high voltage IEC-320 typepower cord of at least 10 A capacity.SH-110 Power Cord SelectionCountry Power Cord Specification OrderEurope 10 A / 220-230 VAC, 2.5 m 656494220Denmark 10 A / 220-230 VAC, 2.5 m 656494225Switzerland 10 A / 230 VAC, 2.5 m 656494235UK/Ireland 13 A / 230 VAC, 2.5 m 656494250India 10 A / 220-250 VAC, 2.5 m 656494245Israel 10 A / 230 VAC, 2.5 m 656494230Japan 12 A / 100 VAC, 2.3 m 656494240NorthAmerica15 A / 125 VAC, 2.0 m 65645820310 A / 230 VAC, 2.5 m 656494255Grounding InstructionsThis product should be grounded. In the event of an electricalshort circuit, grounding reduces the risk of electricshock by providing an escape wire for the electric current.This pump is equipped with a power cord that has agrounding wire with an appropriate grounding plug. Theplug must be inserted into an outlet that is properlyinstalled and grounded in accordance with all local codesand ordinances.DANGERWARNINGImproper installation of the groundingplug can result in a risk of electricalshock.For United States and Canadian installations:❑ When this product is configured foruse on a nominal 120 V circuit, it mustbe used with a grounding plug thatlooks like the plug illustrated inFigure 4.❑ If repair or replacement of thecord or plug is necessary, connectthe grounding wire to the groundingterminal only.❑ The grounding wire is insulated andits outer surface is green. It may or maynot have yellow stripes.❑ When this product is configured foruse on a nominal 220 V circuit, it mustbe used with a factory supplied cordand plug that permits connection to theproper electric circuit. See “ElectricalConnections” on page 18 for properrating and type of cord set.Check with a qualified electrician orserviceman if the grounding instructionsare not completely understood, or ifyou are in doubt as to whether theproduct is properly grounded.Do not modify the plug provided; if itdoes not fit the outlet, have the properoutlet installed by a qualified electrician.Connect the product only to an outletthat has the same configuration as theplug.DRAFT 7/12/05Do not use an adapter with thisproduct.19
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Page 32: Request for ReturnHealth and Safety

DRAFT 7/12/05 - MHz Electronics, Inc

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