Edwards E2M28, E2M30, Users Instruction Manual

1 A373-10-880 Issue JInstruction ManualE2M28 and e2m30 Rotary Vacuum PumpsDescriptionItem NumberE2M28, 100/200 V, 50 Hz or 100-105/200-210 V, 60 Hz, single-phaseA373-15-904E2M28, 115/230 V, 60 Hz, single-phaseA373-15-981E2M28, 200-240 V, 50 Hz, or 230-240 V, 60 Hz, single-phaseA373-15-903E2M28, 200-220/380-415 V, 50 Hz, or 200-230/460 V, 60 Hz, three-phaseA373-10-940E2M28, 200-240 V, 50 Hz, or 230-240 V, 60 Hz, single-phase (Amphenol)A373-16-903E2M28, 110/200-240 V, 50 Hz, or 115-120/200-230 V, 60 Hz, single-phaseA373-17-984E2M28-FF, 220/240 V, 50 Hz, or 230/240 V, 60 Hz, single-phaseA373-25-903E2M28-FF, 200-220/380-415 V, 50 Hz, or 200-230/460 V, 60 Hz, three-phaseA373-21-940E2M30, 100/200 V, 50 Hz or 100-105/200-210 V, 60 Hz, single-phaseA374-15-904E2M30, 115/230 V, 60 Hz, single-phaseA374-15-981E2M30, 200-240 V, 50 Hz, or 230-240 V, 60 Hz, single-phaseA374-15-903E2M30, 200-220/380-415 V, 50 Hz, or 200-230/460 V, 60 Hz, three-phaseA374-10-940 Jun 03 Issue JE2M28 and e2m30 Rotary Vacuum and directive and storage and the the pump with installation: single-phase single-phase version single-phase V 50 Hz or 115-120/200-230 V 60 Hz single-phase installation.

2 Three-phase the electrical supply to the the direction of the pump the pump inlet test the directive achieve ultimate pump condensable decontaminate the 8102-03 Jun 03 Issue JE2M28 and e2m30 Rotary Vacuum the oil the and clean the the gas-ballast the motor fan-cover and and overhaul the new the motor pump has failed to pump fails to achieve specified performance (failure to reach ultimate vacuum) pump is pump surface temperature is above 100 vacuum is not maintained after the pump is switched pumping speed is is an external oil leak286 STORAGE AND AND Dust Desiccant Chemical Mist Operated Pipeline Drain Inlet Outlet Ballast Banjo/Elbow Ballast Valve32 RETURN OF BOC Edwards EQUIPMENTCONTENTS (CONTINUED)SectionPageJun 03 Issue JE2M28 and e2m30 Rotary Vacuum PumpsPAGE iiiiiiILLUSTRATIONSF igurePage1 The E2M28/ e2m30 pump (single-phase motor shown)32 Dimensions (mm)73 Electrical supply connection, single-phase motors:220-240 V 50 Hz and 230-240 V 60 Hz124 Electrical supply connection, single-phase motors:100 V 50 Hz, 100-105 V 60 Hz and 115 V 60 Hz125 Electrical supply connection, single-phase motors:200 V 50 Hz, 200-210 V 60 Hz and 230 V 60 Hz136 Electrical supply connection, single-phase motors with Amphenol connector:220-240 V 50 Hz and 230-240 V 60 Hz137 Motor voltage selection: single-phase motors,110/200-240 V 50 Hz and 115-120/200-240 V 60 Hz148 Electrical supply connection, three-phase motors: 200-220 V 50 Hz and 200-230 V 60 Hz179 Electrical.

3 Supply connection, three-phase motors: 380-415 V 50 Hz and 460 V 60 Hz1710 Remove/replace the inlet filter2511 Remove/replace the gas-ballast filter2612 Accessories31 Jun 03 Issue JE2M28 and e2m30 Rotary Vacuum PumpsPAGE ivivTABLEST ablePage1 Operating and storage conditions42 Performance data43 Mechanical data54 Electrical data: three-phase motors55 Electrical data: single-phase motors56 Lubrication data67 Checklist of items98 Motor connection details109 Maintenance plan2410 Spares Item Numbers3011 Accessory Item Numbers30 Associated publicationsPublication titlePublication NumberVacuum pump and vacuum system safetyP300-20-100 Jun 03 Issue JE2M28 and e2m30 Rotary Vacuum and definitionsThis Manual provides installation, operation andmaintenance instructions for the following BOCE dwards E2M28 and e2m30 rotary vacuum must use the pump as specified in this Manual .

4 Read this Manual before you install and operate yourpump. Important safety information is highlighted asWARNING and CAUTION instructions ; you mustobey these instructions . The use of WARNINGSand CAUTIONS is defined units used throughout this Manual conform tothe SI international system of units of following warning labels are on the pump:WARNINGW arnings are given where failure to observe the Instruction could result in injury or death to are given where failure to observe the Instruction could result in damage to the equipment, associated equipment and directive implications This equipment is designed to meet therequirements of Group II Category 3 equipmentin accordance with Directive 94/9/EC of theEuropean Parliament and the Council of 23rdMarch 1994 on the approximation of the laws ofthe Member States concerning equipment andprotective systems intended for use in potentiallyexplosive atmospheres.

5 (The ATEX Directive)The ATEX Category 3 applies in respect ofpotential ignition sources internal to theequipment. An ATEX Category has not beenassigned in respect of potential ignition sourceson the outside of the equipment as the equipmenthas not been designed for use where there is anexternal potentially explosive is no potential source of ignition within thepump during normal operation but there may bepotential sources of ignition under conditions ofpredictable and rare malfunction as defined in theDirective. Accordingly, although the pump isdesigned to pump flammable materials andmixtures, operating procedures should ensurethat under all normal and reasonably predictableconditions, these materials and mixtures are notwithin explosive limits. Category 3 is consideredappropriate for the avoidance of ignition in thecase of a rare malfunction which allows flammablematerials or mixtures to pass through the pumpwhile within their explosive limits.

6 (Continued on page 2)Warning - refer to - risk of electric - hot - do not blockthe pump JJun 03 PAGE2E2M28 and e2m30 Rotary Vacuum PumpsINTRODUCTION2 When flammable or pyrophoric materials arepresent within the equipment you must: Not allow air to enter the equipment. Ensure that the system is leak tight. Use an inert gas purge (for example, anitrogen purge) to dilute any flammable gasesor vapours entering the pump inlet, and/oruse an inert gas purge to reduce theconcentration of flammable gases or vapoursin the pump and in the exhaust pipeline to lessthan one quarter of the gases' published lowerexplosive limits (LEL). For further information, please contact BOCE dwards: refer to the Addresses page at the endof this Manual for details of your nearest BOCE dwards BOC Edwards E2M28 and e2m30 pumps areshown in Figure 1.

7 Refer to Figure 1 for itemnumbers in brackets in the following E2M28 and e2m30 pumps are two-stage, directdrive, sliding vane pumps. The pump is oil-sealed anddesigned for reliable, long-term operation in bothlaboratory and industrial environments. The pump isa free-standing unit. The drive is provided through aflexible coupling by a single-phase or three-phase(four pole) motors are totally enclosed and are cooled bythe motor-cooling fan which directs air along themotor single-phase motors have a thermal overloaddevice. When the motor is too hot, the thermaloverload device switches off the pump. The thermaloverload device has an automatic reset; when themotor cools down, the device resets and the motorwill restart. The single phase motors have an oil pressure system lubricates the pump shaftbearing surfaces and rotor sealing faces.

8 The pumphas an oil distribution valve which preventsdischarge of oil to the pump interior (suckback)after the pump stops. The pumping chambers areair-tight, so this arrangement prevents air suckbackunless the gas-ballast valve is open. For protection inthis case, refer to Section can inspect the level and condition of oil in theoil box reservoir through the oil sight-glass (12). Anoil filler-plug (1) is fitted to the top of the oil pump has an oil drain-plug (11) to allow gravityoil pump has an inlet-port (6), outlet nozzle (2) andgas-ballast control (3). The pump is mounted on analuminium alloy baseplate (10) on rubber of suitable vibration isolators and otherrecommended accessories are given in Section pump high vapour loads, gas-ballast is deliveredinto the pump to prevent condensation of thevapour carried by the pumped (or another gas) can be introduced into the lowvacuum stage through the gas-ballast control.

9 Thegas-ballast control is a multi-turn valve which youcan adjust, as required, between closed and 03 Issue JE2M28 and e2m30 Rotary Vacuum PumpsPAGE33 INTRODUCTIONF igure 1 - The E2M28/ e2m30 pump (single-phase motor shown)1. Oil filler2. Outlet nozzle3. Gas-ballast control4. Gas-ballast inlet5. Centring-ring and O ring (supplied)6. Inlet-port (adaptor flange)7. Cable-gland/Amphenol connector position8. Motor terminal box9. On/Off switch10. Baseplate11. Oil drain-plug (gravity drain)12. Oil sight-glass13. Pump identification labelNote:The motor shown on this figure is not representative of the motor used on the E2M28 (Amphenol)pump with Item Number A373-17-984. On this pump, items 7 and 9 are transposed, with Item 7being an IEC60320 16-20 Amp JJun 03 PAGE4E2M28 and e2m30 Rotary Vacuum PumpsTECHNICAL DATA42 TECHNICAL and storage.

10 Where total pressures are shown in the following technical data tables, measurementswere taken using an untrapped total pressure capacitance diaphragm gauge on a header,as specified by Pneurop operating temperature rangeAmbient storage temperature rangeMaximum ambient operating humidity13 to 40 oC-30 to 70 oC90% RHNormal surface temperature of the pump-body at ultimate vacuum (ambient temperature of 20 oC)Noise level at 1 metre45 to 65 oC57 dB(A) (at 50 Hz)Table 1 - Operating and storage conditionsE2M28E2M30 Maximum displacement50 Hz electrical supply60 Hz electrical m3 m3 h-119 cfm23 cfmMaximum speed - Pneurop50 Hz electrical supply60 Hz electrical m3 m3 cfmMotor rotational speed50 Hz electrical supply60 Hz electrical supply1440 r min-11720 r min-11440 r min-11720 r min-1 Ultimate vacuumWithout gas-ballast (partial pressure)Without gas-ballast (total pressure)With full gas-ballast (partial pressure)1 x 10-4 mbar1 x 10-2 Pa1 x 10-3 mbar1 x 10-1 Pa2 x 10-1 mbar2 x 101 Pa7 x 10-5 torr7 x 10-4 x 10-1 torrMaximum water vapour inlet pressure30 mbar3 x 103 torrMaximum water vapour pumping kg kg h-1 Maximum permitted outlet pressure (at full pump throughput)