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Documents are only to be used and distributed completely and unchanged, especially including the section ”Safety information”. This is page 1 of a document consisting of
49 pages. The instructions for use describe only the actual product. If the product is older or newer than the date of writing, it is strictly the users´ responsibility to check carefully
the validity of the document (if in doubt, order appropriate instructions for use). 99 90 34 / 12/09/2003

Technology for Vacuum Systems

Instructions for use

MZ 2C VARIO

MD 4C VARIO

PC 2002 VARIO
PC 2003 VARIO
PC 2004 VARIO

Chemistry pumping units with speed control

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Summary of Contents for MZ 2C VARIO select

Page 1: ...ribe only the actual product If the product is older or newer than the date of writing it is strictly the users responsibility to check carefully the validity of the document if in doubt order appropriate instructions for use 99 90 34 12 09 2003 Technology for Vacuum Systems Instructions for use MZ 2C VARIO MD 4C VARIO PC 2002 VARIO PC 2003 VARIO PC 2004 VARIO Chemistry pumping units with speed co...

Page 2: ...tly the users responsibility to check carefully the validity of the document if in doubt order appropriate instructions for use 99 90 34 12 09 2003 Attention Important notes Not permitted Misuse may cause damage Caution Hot surface Isolate equipment from mains Note Technische Beratung Gebiet Nord Telefon 09342 808 264 Gebiet Mitte Telefon 09342 808 263 Gebiet Süd Telefon 09342 808 225 Kundendienst...

Page 3: ...s strictly the users responsibility to check carefully the validity of the document if in doubt order appropriate instructions for use 99 90 34 12 09 2003 Contents Safety information Technical data Description Use and operation Notes on operation Working with the controller Accessories Troubleshooting Readjustment Interface parameters Replacing diaphragms and valves Cleaning and assembling compone...

Page 4: ...tch for the controller and the pump is at the rear side of the control ler After switching off the pump wait 60 sec minimum until next switching on Due to the high leakage current 3 5 mA a too low rated frequency converter safety switch may be activated especially if several pumps are operated parallelly Attention Make sure that a protective conductor connection is established be fore the equipmen...

Page 5: ... IP degree of protection Adopt suitable measures in case of differences e g using the equipment out doors installation in altitudes of more than 1000 m above mean sea level conduc tive pollution or dewiness Pay attention to symbol hot surfaces on the equipment according to IEC 1010 rec ommendation Adopt suitable measures to prevent any danger arising from the formation of hot surfaces or electric ...

Page 6: ...ce the risk of leaks ask for a diaphragm pump with additional safety diaphragm Obey especially notes on operation and use and maintenance Use only genuine spare parts and accessories Otherwise safety and performance of the equipment as well as the electromag netic compatibility of the equipment might be reduced Ensure that maintenance is done only by suitably trained and supervised technicians Ens...

Page 7: ...i m r e p x a M g n i r u d e r u t a r e p m e t n o i t a r e p o e g a r o t s C 0 4 o t 0 1 0 6 o t 0 1 e v i t a l e r d e t t i m r e p x a M g n i r u d e r u t s i o m c i r e h p s o m t a f o n o i t a r a p e s o n n o i t a r e p o t a s n e d n o c 5 8 o t 0 3 g n i d r o c c a t n e r r u c e g a k a e l x a M 8 7 1 0 5 N E o t V 0 2 1 0 0 1 V 0 3 2 A m 5 3 5 3 o t g n i d r o c c a ...

Page 8: ...ical data according to EN 61010 1 and EN 1012 2 recommendation The pump achieves its ultimate pumping speed and ultimate vacuum only at operating temperature after approx 15 min Typical current draw draw in mode Continuous pumping and frequency HI We reserve the right for technical modification without prior notice e p y T C 2 Z M O I R A V 2 0 0 2 C P O I R A V C 4 D M O I R A V 4 0 0 2 C P O I R...

Page 9: ... l l u f e r a c r e c u d s n a r t h t i w y t n i a t r e c n U e r u t a r e p m e t t n a t s n o c t a d n a d e t a r b i l a c t i g i d 1 r r o T 1 r a b m 1 t n e i c i f f e o c e r u t a r e p m e T K r r o T 5 0 0 K r a b m 7 0 0 r e c u d s n a r t e r u s s e r p n o i t c e t o r p f o e e r g e D 9 2 5 C E I o t g n i d r o c c a 4 5 P I e r u s s e r p e h t t a e r u s s e r p d...

Page 10: ...esponsibility to check carefully the validity of the document if in doubt order appropriate instructions for use 99 90 34 12 09 2003 MZ 2C VARIO MD 4C VARIO inlet gas ballast valve rating plate outlet trip line and power supply of the frequency converter pressure transducer VSK 5 controller CVC 2000II pump MZ 2C with frequency converter inlet gas ballast valve rating plate outlet trip line and pow...

Page 11: ...ns for use 99 90 34 12 09 2003 PC 2002 VARIO PC 2003 VARIO 2004 VARIO exhaust waste vapour condenser with cover overpressure safety relief device at the exhaust waste vapour condenser controller CVC 2000II pump MZ 2C VARIO with frequency converter inlet vacuum connection pressure transducer VSK 5 round bottom flask to collect condensate exhaust waste vapour condenser with cover overpressure safety...

Page 12: ... can be adapted to the specific application by choosing another mode than Pressure control factory set see section General view modes The status of the controller respectively of the connected accessories is displayed by corresponding symbols on the LCD After switching on the version of the software is displayed than the mode as well as the symbols cooling water valve and air admit tance valve if ...

Page 13: ...etting of frequency setting time for switch off only VACUU LAN switching toggling in setups start or stop of process control or confirmation of selected values or mode operating air admittance valve only if valve is connected and preselected MODE START STOP VENT CVC 2000II p Rear side CVC 2000II switch on off automatic mode only pressure control special function in combination with another key con...

Page 14: ...n 1000 m above mean sea level check compatibility with applicable safety requirements e g DIN VDE 0530 motor may overheat due to insufficient cooling When assembling ensure vacuum tightness After assembly check the com plete system for leaks During operation Do not start pump if pressure difference between inlet and outlet port exceeds max 1 bar Attempts to start pump at higher difference may caus...

Page 15: ...ozzle 6 mm outlet gas hose nozzle 10 mm Connect the cable of the gauge head to the female connector at the rear side of the vacuum controller Connect the gauge head to the vacuum system by using a small flange connection or a hose connection The device is adjusted together with the gauge head at the factory If the gauge head is replaced a readjustment is rec ommended Connect cable from the frequen...

Page 16: ...s ballast increases the sol vent recovery rates at the exhaust waste vapour condenser gas ballast Separation of condensate Both round bottom flasks are coated with a protective layer to prevent disintegration in case of breakage or implosion Collecting flask at the outlet Remove joint clip remove flask and drain condensate Separator at the inlet Isolate or shut down the pump admit air or inert gas...

Page 17: ...se 99 90 34 12 09 2003 Shutdown Short term Has the pump been exposed to condensate Allow the pump to continue to run at atmospheric pressure for a few minutes con tinuous pumping at a frequency of 60 Hz Has the pump been exposed to media which may damage the pump materials or forms deposits Check and clean pump heads if necessary Has the pressure transducer been exposed to media which may form dep...

Page 18: ...00II setting pressure unit mbar Torr hPa configuration of the cooling water valve if applicable setting mode ready to start mode pressure control factory set controller controls pump according to preset pressure value or in automatic mode cooling water valve optional air admittance valve optional mode VACUU LAN controller controls pump according to preset pressure and time values cooling water val...

Page 19: ... no abrupt switching of valves Vacuum supply according to the requirements for lock cham bers or pumping systems not compressing against atmos pheric pressure e g wide range turbomolecular pumps or cryo pumps Continuous pumping with preset pumping speed Simple suction suck liquids by siphon drying sucking off excess etc Suction with regulated pumping speed Pumping down until the ultimate vacuum of...

Page 20: ...ny diaphragm strokes as necessary Setting the mode Starting the program Press key MODE while switching on the controller The mode pressure control factory set is displayed on the LCD by flashing symbols To change the mode Press key or until the symbol of the desired mode is flashing Only in mode pressure control Set Auto and yes or no are displayed Switching between yes or no is possible by pressi...

Page 21: ... 12 09 2003 If the automatic mode has been preselected End is displayed Switching between automatic switching off activated or not activated is possible by pressing key or Confirm by pressing key START STOP Automatic switching off as soon as the controller detected that evaporation is completely finished The pump is switched off the cooling water is running on if a cooling water valve is preselect...

Page 22: ...y the validity of the document if in doubt order appropriate instructions for use 99 90 34 12 09 2003 General view mode pressure control connect and configurate cooling water valve manual settings process pressure and speed if applicable selection of the mode mode pressure control yes no connect and configurate air admit tance valve yes no automatic mode yes no yes no process control switching coo...

Page 23: ...venting e g in case of radiation of boiling or sudden foaming occurs Press key VENT shortly 2 sec Pumping is interrupted the process control is stopped Venting the system Press key VENT continuously 2 sec until symbol air admittance valve is flushing Pumping is interrupted the process control is stopped Ventilation until pressure does not change any more i e until atmospheric pressure is attained ...

Page 24: ...nally key MODE the set point is adjusted automatically in case of change of boiling point Setting of set point p e g boiling point Setting the set point by using the keys ps or pt factory set 100 mbar To activate set mode Press key shortly Set p appears Short tips toggle p in steps of 1 mbar Continuous pressing activates ramp Set point changes with increasing speed Adjusting the process pressure b...

Page 25: ...stricts the evaporation rate in case of low boiling solvents and a carry over of sub stances The utilisation of a condenser or a cold trap at the inlet can be optimized If selecting HI recommended for motor speed the maximum speed for automatic adaption of the motor speed is restricted to a value corresponding to the sys tem size 10 0 MODE MODE MODE If automatic switching off is preselected and th...

Page 26: ...c Press key MODE simultanious with arrow down When the key is pressed shortly the current pressure for automatic switching off is displayed for one second AE i e automatic switching off is preselected at the factory With a second tip within one second or continuous pressing Select pressure for automatic switching off by using keys or pressure selectable in a range from 1 to 1060 mbar or AE AE i e ...

Page 27: ...ART STOP If a cooling water valve is preselected Cooling water valve opens immediately the symbol is displayed Stopping process control Press key START STOP The pump is switched off Attention Adopt suitable measures if there is a possible pres sure increase after switching off the pump e g due to low boiling solvents If a cooling water valve is preselected The cooling water valve continuous to run...

Page 28: ...s only possible if pumping down is activated after pressing key START The actual pressure is stored as new set point e i the con troller keeps the pressure constant Press key MODE again to activate automatic mode Changing to mode pressure control Setting of speed Setting the value for the speed by using key Mode or To activate set mode Press key shortly The current speed is displayed for one secon...

Page 29: ...al view mode VACUU LAN setting process parameters lower pressure value condition for automatic shut down upper pressure value condition for restart time for automatic shut down setting the mode mode VACUU LAN start pump down The pump and the cooling water valve if applicable is switched off if the pressure is below the lower pressure value longer than the time for automatic shut down The pump star...

Page 30: ...is switched on If a cooling water valve is preselected Cooling water valve opens immediately the symbol is displayed If the pressure for switching off is achieved motor speed becomes reduced The pump and the cooling water valve if applicable is switched off if the pressure is below the lower pressure value longer than the time for automatic shut down The pump starts automatically if the pressure i...

Page 31: ...tomatic shut down are displayed for approx 1 s With a second tip within one second or continuous press ing Press key Mode or to set value for time for shut down 1 200 min The value for the shut down time is stored as the new set point when the key is released If the actual pressure is below the lower set point the time for automatic shut down is running Reset of the time for automatic shut down if...

Page 32: ...61 In case of condensate to avoid transmission of vibrations Venting Solenoid operated air admittance valve VB M2 24 V 66 68 17 Cooling water minimization Cooling water valve 24 V 67 60 13 compact design designed for a high number of operations at short intervals solenoid systems with splash protection conductance optimized for applications with rotary evapo rator and exhaust waste vapour condense...

Page 33: ...i d e m m i e v e i l e R e r u s s e r p e r u s s e r p r e f f u s y a m r e c u d s n a r t g n i t s r u b f o k s i R e g a m a d r o t a c i d n i n o i t k n u f l a M r e c u d s n a r t e r u s s e r p d n a e l g n a i r t g n i n r a w r r E Î t o n d a e h e g u a G d e t c e n n o c e h t o t d a e h e g u a g t c e n n o C e h t t a r o t c e n n o c e l a m e f r e l l o r t n o c ...

Page 34: ... e r f n i a g a Î y l t c e r r o c t o n g n i r g n i r t n e C e h t n i k a e l r o d e n o i t i s o p m u u c a v r o e n i l e p i p m e t s y s a h t i w p m u p k c e h C t a y l t c e r i d e g u a g m u u c a v k c e h c t r o p t e l n i p m u p s e n i l d n a s n o i t c e n n o c Î e n i l w o r r a n g n o L r e g r a l h t i w e n i l e s U t r o h s s a h t g n e l r e t e m a i...

Page 35: ...curate reading from the weather service the next airport take into account the difference in altitude between e g airport and laboratory p CAL Adjustment under vacuum Evacuate the controller to a pressure 0 5 mbar e g by ap plying a good rotary vane pump Press key p or p simultaneous with key MODE the con troller then switches to the adjustment mode The warning triangle and CAL are displayed for a...

Page 36: ...vapour from the bath Example Vacuum selection for a boiling temperature of 40 C e g ethanol The cooling temperature assumed to be 15 20 C Water bath temperature 40 C Wait until temperature is reached Determine the vacuum level for ethanol 170 mbar for a boiling point use published data of solvents Reduce pressure until a sufficient level of evaporation is attained or use the mode AUTO of the contr...

Page 37: ...mote operation PC is displayed the controller can be operated only via interface the keys at the controller have no function the warning triangle is displayed Setting of the interface Setting of the interface parameters directly at the controller is described below The factory set values are underlined 1200 2400 4800 or 9600 BAUD 7 data bits odd 7 data bits even 8 data bits none 8 data bits odd 8 ...

Page 38: ...ir admittance valve 1 air admittance valve 0 no cooling water valve 1 cooling water valve 0 VACUU LAN 1 continuous pumping 2 pressure control without automatic 3 pressure control with automatic malfunction IN_ERR XXXX 1 last command to interface incorrect 1 malfunction pressure transducer 1 overpressure 1 fault pump electronics status of IN_STAT XXXX process control 00 VACUU LAN inactive 01 pumpin...

Page 39: ...or 0000 for automatic switching off AE operation mode OUT_MODE X 1 continuous pumping 2 pressure control without automatic 3 pressure control with automatic driving air admittance OUT_VENT X 0 air admittance valve close not automatically valve 1 air admittance valve open process control stopped starting process control START stopping process control STOP X 1 termination of process control 2 termin...

Page 40: ...d for cracks or other damage Depending on individual cases it may be efficient to check and clean the pump heads on a regular basis In case of normal wear the lifetime of the diaphragms and valves is 10000 operating hours Prevent internal condensation transfer of liquids or dust The diaphragm and valves will be damaged if liquids are pumped in significant amount If the pump is exposed to corrosive...

Page 41: ...t Remove union nut at the exhaust waste vapour condenser and remove hose from the inlet of the condenser Use open ended wrench to remove four cap nuts on the feet of the pump support and lift off pump together with pump support from the base plate Do not disassemble the pump from the pump support Position the pump attached to the pump support in a way that the manifold is on the upper side Use ope...

Page 42: ...03 View of the disassembled pump head parts housing connecting rod diaphragm support disc diaphragm diaphragm clamping disc head cover O ring Use hex key to remove four socket head screws from pump head and remove upper housing housing cover with housing cover insert and head cover Never remove parts by using a spiky or sharp edged tool e g screw driver we recommend to use a rubber mallet or compr...

Page 43: ... disc Note Position diaphragm with white PTFE side to diaphragm clamping disc to pump chamber Assembling pump heads By turning eccentric bushing front of connecting rod bring connecting rod into a position in which diaphragm is in contact with housing and centred with respect to bore Remove head cover from housing cover insert and check valves Note position of valves and remove Replace valves if n...

Page 44: ... the pressure at the inlet port of the individual head Use a suitable vacuum gauge e g DVR 2 cat no 68 29 02 make sure that it is correctly calibrated and measure the pres sure at the inlet port A vacuum of less than 90 mbar should be indicated If the reading is higher recheck the pump chamber and make sure that the valves and the diaphragms are correctly seated diaphragms concentric with bore Use...

Page 45: ...e 99 90 34 12 09 2003 Tighten union nut first by hand and then tighten by one full turn using open ended wrench Reconnect hose to the inlet of the condenser and tighten union nut Use open ended wrench to reconnect hose to elbow fitting If the pump does not achieve the ultimate pressure In case the diaphragms and valves have been replaced a run in period of several hours is required before the pump...

Page 46: ...nd the highest technical authority of the Federal Republic of Germany for the field of meteorology and certain sectors of safety engineering for the measurable variable pressure in the pressure range from 10 3 mbar to 1000 mbar in accordance with the general criteria for the operation of testing laboratories defined in the EN 45000 series of standards Calibration in the VACUUBRAND calibration labo...

Page 47: ...reduce costs please enclose a detailed description of the problem and the product s operating conditions with every product returned for repair We submit quotations only on request and always at the customer s expense If an order is given the costs incurred are offset from the costs for repair or from the pur chase price if the customer prefers to buy a new product instead of repairing the defecti...

Page 48: ...ecautions e g danger classification a b c d 4 Declaration please mark as applicable 4 1 for non dangerous goods We assure for the returned product that neither toxic corrosive biologically active explosive radio active nor contamination dangerous in any way has occurred the product is free of dangerous substances the oil or residues of pumped media have been drained 4 2 for dangerous goods We assu...

Page 49: ...ur technical literature is only intended to inform our customer The validity of general empirical values and results obtained under test conditions for specific applications depend on a number of factors beyond our control It is therefore strictly the users responsibility to very carefully check the validity of application to their specific requirements No claims arising from the information provi...

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