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Description 

115051 

11 

3.1.2 

Diaphragm pump 

► Design:

The diaphragm pump consists of a pump body and a drive motor. 
The pump body consists of a drive shaft and four pump heads. Each pump head contains 

the diaphragm and the work valves. The two pump heads are arranged opposite each other. 

In a three-stage (T) diaphragm pump, the two pump heads are connected in parallel, two fur-

ther pumps in series. 
The pump heads are driven via an eccentric shaft with a connecting rod. 

► Function:

Motor, eccentric shaft and connecting rod set the diaphragms in stroke movement. This 

changes the size of the space between the diaphragms and pump head (pump chamber). 
Increasing the size of the pump chamber opens the inlet valve while the outlet valve is 

closed (intake process). Decreasing the size of the pump chamber ejects the gas through 

the outlet valve. 
The valves are actuated by the gas being pumped. A large proportion of fluid in the dia-

phragm pump minimizes the pumping efficiency. 

► Materials of the medium-affecting pump parts:

Component 

Materials 

Seal

EPDM

Screw fitting / Connecting elements

PP, PVDF

Valve

PEEK

Diaphragm

Ela PTFE layer

Vacuum hose

PTFE

Connection head / pump head

PTFE with carbon-fibre reinforcing

 *)

*) 

  electrically conductive (with manufacturer's certificate of electrical conductivity) 

 Material resistance to aggressive media see: Publisher Hoppenstedt Publishing (18. September 2007) 

► Gas ballast:

When condensable vapours are pumped, 

they may be compressed above the 

saturated vapour pressure and condense.

Opening the gas ballast valve (17) in the 

suction line of the last pump stage allows 

air to flow into the pump chamber. 

This prevents condensation and flushes 

the pump clear.

Operation leads to increasing the ultimate pres-

sure and the operating temperature.

        Fig. 2   Diaphragm pump MPC 601 T 

Summary of Contents for WELCH LVS 600 T

Page 1: ...inal manual Laboratory Vacuum Systems Ultimate pressure 2 mbar Models unregulated LVS 600 T manual regulated LVS 601 T LVS 602 T automatic regulated LVS 610 T LVS 611 T ecoflex LVS 610 T ef LVS 610 T...

Page 2: ...permission of Co Gardner Denver Thomas GmbH All rights under the copyright laws are expressly reserved by Co Gardner Denver Thomas GmbH We reserve the right to make changes and amendments Gardner Den...

Page 3: ...erview of the LVS variants 13 3 3 Areas of Application 13 3 4 Scope of Delivery 13 3 5 Examples of application 14 3 6 Accessories 16 4 Technical Data 18 4 1 View of device and dimensions 18 4 2 Intake...

Page 4: ...f the diaphragm pump 42 7 2 1 1 Disassembly 43 7 2 1 2 Assembly 43 7 2 1 3 Test 44 7 2 2 Maintenance of the vacuum controller 44 7 2 3 Maintenance of other components 44 7 3 Maintenance by the Manufac...

Page 5: ...form the work that has to be done The user must authorize the operating personnel to do the work that has to be done The personnel must have read and understood the complete Operating Manual before us...

Page 6: ...of machinery Electrical equipment of machines Part 1 General requirements DIN EN 61000 6 2 2011 06 DIN EN 61000 6 4 2011 09 Electromagnetic compatibility EMC Part 6 2 Generic standards Immunity for i...

Page 7: ...stem if it is accompanied by a fully completed damage report Pre cise information about the contamination also negative information if necessary and thor ough cleaning of the Laboratory Vacuum Systems...

Page 8: ...the pumping action and can lead to damage Prevent solid particles penetrating into the pump When handling glass vessels pay attention to Only use glass vessels with a plastic coating for splinter prot...

Page 9: ...rform this test with a number of loads connected to one LVS Consider the regulations of the guideline 1999 92 EC Explosive gases The diaphragm pumps of the series MPC are certified according to ATEX g...

Page 10: ...l exposed glass components 6 7 are coated with transparent plastic as protection against bursting The emission condenser is supplied with insulation The power switch 12 and the plug for the power cabl...

Page 11: ...ts the gas through the outlet valve The valves are actuated by the gas being pumped A large proportion of fluid in the dia phragm pump minimizes the pumping efficiency Materials of the medium affectin...

Page 12: ...external vacuum controller for installation in for example laboratory furniture Over the cable to the device the electrical connection is made 1 Built in Vacuum Controller extern 2 Laboratory Vacuum S...

Page 13: ...1 1 1 1 Diaphragm pump 1 1 1 1 1 1 1 Vacuum controller 521 1 cv 1 cv 1 ef 1 en Emission condenser 1 1 1 1 1 1 Separator 2 1 1 1 1 1 1 Pressure side connection for hose DN 8 1 1 1 1 1 1 1 Frequency cha...

Page 14: ...surised run back 7 Water valve WV Fig 3 Example of application LVS manually regulated 1 LVS with vacuum controller and control valve cv 2 Suction line 3 Outgoing air 4 Rotary vaporizer 5 Capable of ex...

Page 15: ...olant system un pressurised run back 7 Water valve WV Fig 6 Example of application LVS en economic CAUTION The economic Laboratory Vacuum System LVS en is suitable for slow proc esses and central labo...

Page 16: ...mm netvac Set BC1 62 Order no 700562 for mounting on wood furniture Set BC2 62 Order no 700562 01 for mounting on sheet metal wall with integrated FFKM Check valve Dosing valve and Hose nozzle Area of...

Page 17: ...e diameters 8 mm Hose nozzle with FKM O Ring DN 10 Order no 710955 Material PP Male thread Inlet fitting DN 16 KF Order no 710116 Material PP Male thread Vacuum hose 10 8x1 Order no 828332 Material PT...

Page 18: ...View of device and dimensions The main dimensions are identical for all types stated here Fig 7 View of device type LVS 601 T dimensions see chapter 4 3 4 2 Intake Pressure Pumping Speed Diagram Fig...

Page 19: ...ith motor protection switch switch and cable Motor power W 370 Operating mode S 1 Motor Type of protection DIN EN 60529 IP 54 Motor Class of insulation DIN EN 600034 1 F 160 C Type Examination Certifi...

Page 20: ...Voltage Frequency different data upon customer request V Hz 230 50 60 115 50 60 generally with motor protection switch switch and cable Motor power W 370 Input Frequency changer Apparent power W A 800...

Page 21: ...ion max 15 depends upon the control power W Fuse internal controller 5 A Power pack integrated Operating voltage 90 260 V AC Operating frequency 50 60 Hz Output voltage 24 V DC Output current 1 25 A O...

Page 22: ...ed Connect the Laboratory Vacuum System to the power supply LVS with controller extern see chapter 3 1 3 1 5 2 1 General instructions Observe the basic safety instructions when using the LVS The press...

Page 23: ...ort valve The pressure values may be increased when doing so The diaphragm pump s maximum tolerance of water va pour pressure can be improved or a cleaning run can be made after finishing work by open...

Page 24: ...an analog voltage is output which controls the speed according to the standard tolerance If the set pressure is not reached the speed is automatically adjusted to the pressure loss If the pressure is...

Page 25: ...ional the device goes into STOP status when Tank full is signalled 6 5 Calibrating the Pressure Sensor A two point calibration is made with a comparison measurement device Calibration at ambient press...

Page 26: ...manually with the currently selected setpoint in the solvent table see chapter 6 8 Stops the active mode Cancels the input in the pop up window Jumps back to the main menu from submenus Encoder Meanin...

Page 27: ...V 1 16 P 960 mbar MAIN MENU Manual Automatic Low pressure Configuration Self cleaning VCZ 521 V 1 16 P 960 mbar Configuration language display settings pressure unit calibrate back VCZ 521 V 1 16 P 96...

Page 28: ...Low pressure Configuration Self cleaning VCZ 521 V 1 16 P 960 mbar Configuration language display settings pressure unit calibrate back VCZ 521 V 1 16 P 960 mbar calibrate Cal Start pressure Cal Low...

Page 29: ...Low pressure Configuration Self cleaning VCZ 521 V 1 14 P 960 mbar MAIN MENU Manual Automatic Low pressure Configuration Self cleaning VCZ 521 V 1 16 P 960 mbar Selection self cleaning for flushing t...

Page 30: ...VC 521 V 1 16 P 960 mbar Parameter for mode Manual Parameter Value Unit start graphic start numeric Setpoint numeric setpoint table hysteresis auto stop time No of pressure ramps VENTILATE on STOP Aut...

Page 31: ...nterfaces 6 7 1 1 Electrical Interfaces Location of interfaces see Figure 6 The device is supplied with 24 V DC X1 Power supply input Spring contact clamp Wago type 236 2 pole Pin no Function Specific...

Page 32: ...type 236 3 pole Pin no Function Specification Comment 1 GND bl 2 SENSOR 1 or PCL input 1 I in approx 10 mA Uthreshold approx 13 V gn 3 Sensor supply Corresponds to the voltage at X1 protected by 200 m...

Page 33: ...put bl 2 Output Corresponds to the voltage infeed at X1 pnp max 0 5 A with freewheeling diode orange X7 RS232 to the PC Tub plug connector 10 pin via FB to Sub D plug 9 pin W rth 618009221823 Function...

Page 34: ...ried out Switch off the controller Call the flash program Select the processor MB96F348A R Y Select the quartz frequency 4 MHz Select the program file Most Current Version Highest Sequential Number VC...

Page 35: ...nd a switched on controller on COM1 to 20 A COM Port 1 255 can also be defined as a command line parameter VCZ521 EXE 2 select COM2 If a controller cannot be found the program goes into offline mode H...

Page 36: ...erating mode The Pmin button functions the same as without a controller The following menu items can be selected from the menu bar File Measure Settings Calibrate Factory settings 6 8 1 Menu item File...

Page 37: ...Menu item Settings CAUTION Settings not required for the selected operating mode are disabled and grayed out in the display Appropriate error messages are displayed if the data ranges are ex ceeded o...

Page 38: ...ues after power failure or shutdown manual setpoint setpoint Enter a setpoint pressure value between 0 and 1100 mbar manual hysteresis hysteresis Enter a hysteresis value between 0 and 1100 mbar press...

Page 39: ...alue has been established If the controller is integrated in a complete system or pump system LVS evacuation and venting take place automatically when the stated buttons are pressed The calculated cor...

Page 40: ...ed not settable present not present read not settable Reading the set values Confirmation of acceptance by signal tone send not settable Transmission of changed values to the controller Confirmation o...

Page 41: ...ethylene trans C2H2Cl2 751 Diisopropyl ether C6H14O 375 Dioxan C4H8O2 107 DMF C3H7NO 11 Ethanol C2H6O 175 Ethyl acetate C4H8O2 240 Heptane C7H16 120 Hexane C6H14 335 Isopropyl alcohol C3H8O 137 Isoamy...

Page 42: ...parts being possibly contaminated by hazardous substances Wear protective clothing if there is contamination 7 2 1 Maintenance of the diaphragm pump Check the pump daily for unusual running noises and...

Page 43: ...ING Renew defective parts if necessary Wear protective gloves Parts must be renewed at the intervals stated in this Operating Manual or as speci fied by the user internally Do not clean with compresse...

Page 44: ...the glass vessels are undamaged and if necessary replace Check rubber gasket of the safety valve at the emission condenser and if necessary re place it 7 3 Maintenance by the Manufacturer Repairs and...

Page 45: ...or exchange Diaphragm defective User or Service workshop Exchange of the diaphragm see chapter 7 2 Valve defective Exchange of the valve see chapter 7 2 Vacuum pump dirty General maintenance leaning...

Page 46: ...the description quantity serial number and order number CAUTION We are not liable for any damage caused by the installation of any parts not supplied by the manufacturer 9 1 Service kit Diaphragm Pump...

Page 47: ...Parts Overview 115051 47 9 2 Spare parts Laboratory Vacuum Systems unregulated manually regulated Spare parts view LVS 600 T unregulated Fig 12 Front and rear unit LVS unregulated without item no 1 a...

Page 48: ...Spare Parts Overview 48 115051 Spare parts view LVS 602 T manually regulated Fig 13 Front and rear unit LVS manually regulated without item no 1 and 2...

Page 49: ...lbow joint PVDF 10 2 829984 1 829984 3 Column 1 complete consisting of pos 4 12 1 115502 Column 3 complete consisting of pos 4 12 1 115502 02 4 Rear panel 1 115512 02 115512 02 5 Emission condenser co...

Page 50: ...Spare Parts Overview 50 115051 Spare parts view LVS 601 T manually regulated Fig 14 Front and rear unit LVS manually regulated without item no 1 and 2...

Page 51: ...115502 22 4 Rear panel 1 115512 02 115512 02 115512 02 5 Emission condenser complete KD 500 5 consisting of pos 5a 5k 1 700183 08 700183 08 700183 08 5a Intensive cooler with isolation 1 720480 72048...

Page 52: ...r panel 1 115512 02 5 Emission condenser complete KD 500 5 consisting of pos 5a 5k 1 700183 08 5a Intensive cooler with isolation 1 720480 5b Round bottomed flask 500 ml KS 35 1 828839 5c Ball and soc...

Page 53: ...pare Parts Overview 115051 53 9 3 Spare parts Laboratory Vacuum Systems automatically regulated Spare parts view LVS 610 T Fig 15 Front and rear unit LVS automatically regulated without item no 1 and...

Page 54: ...1 825277 1 4e NT switch power pack 24 V 1 827400 5 827400 5 4f Circuit board 521 1 827429 827429 5 Emission condenser complete KD 500 5 consisting of pos 5a 5k 1 700183 08 700183 08 5a Intensive coole...

Page 55: ...Spare Parts Overview 115051 55 Spare parts view LVS 611 T Fig 16 Front and rear unit LVS automatically regulated without item no 1 and 2...

Page 56: ...ound plug flange box 4 pole 2 825277 1 4e NT switch power pack 24 V 1 827400 5 4f Circuit board 521 1 827429 5 Emission condenser complete KD 500 5 consisting of pos 5a 5k 1 700183 08 5a Intensive coo...

Page 57: ...Spare Parts Overview 115051 57 9 4 Spare parts Laboratory Vacuum Systems ecoflex Spare parts view LVS 610 T ef Fig 17 Front and rear unit LVS 610 T ef without item no 1 and 2...

Page 58: ...sion condenser complete KD 500 5 consisting of pos 5a 5k 1 700183 08 700183 08 5a Intensive cooler with isolation 1 720480 720480 5b Round bottomed flask 500 ml KS 35 1 828839 828839 5c Ball and socke...

Page 59: ...d 2 The LVS 610 T ef extern order no 115254 04 is supplied with a controller which could for example be installed in the rear wall of a laboratory The installation and connection are described in chap...

Page 60: ...0 ml KS 35 1 828839 5c Ball and socket clamp KS 35 1 828845 5d Screw cap GL 14 2 828872 5e Hose nozzle GL 14 2 828872 1 5f Safety valve 1 100838 01 5g Vacuum hose PTFE 10 8x1 sold be the metre 0 15 m...

Page 61: ...Spare Parts Overview 115051 61 9 5 Spare parts Laboratory Vacuum Systems economic Spare parts view LVS 610 T en Fig 19 Front and rear unit LVS 610 T en without item no 1 and 2...

Page 62: ...pole 1 825277 1 4e NT switch power pack 24 V 1 827400 5 4f Circuit board 521 1 827429 4g Load relay 1 825741 5 Emission condenser complete KD 500 5 consisting of pos 5a 5k 1 700183 08 5a Intensive coo...

Page 63: ...Spare Parts Overview 115051 63 9 6 Spare parts Diaphragm pumps Spare parts view MPC 601 T for LVS Fig 20 Exploded view diaphragm pump...

Page 64: ...her 4 400707 400707 400707 400707 13 Pump head 4 400705 02 400705 02 400705 02 400705 02 14 Valve 8 400656 400656 400656 400656 15 O ring EPDM 25 x 2 8 829250 1 829250 1 829250 1 829250 1 16 PTFE inse...

Page 65: ...owing instructions absolutely must be observed when using these devices Because of the identical construction in principle of the devices of category 2 certified by IBExU notified body these studies r...

Page 66: ...lating to ambient and gas intake temperatures in the operating instructions are to be observed After maintenance or repair work has been carried out the device concerned must be subjected to an approp...

Page 67: ...gnition temperature on the basis of his knowledge 9 Conformity assessment The conformity assessment for devices of category 3 of device group II and EX II 3G IIC T3 X certification is conducted by the...

Page 68: ...rt 1 Basic method and requirements Appareils non lectriques destin s tre utilis s en atmosph res explosibles partie 1 prescriptions et m thodologie X DIN EN 13463 5 2011 10 Nicht elektrische Ger te f...

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