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Operation 

 

Vacuum Pump System SC 920G 

20 

Translation of original Operating Instructions, English, KNF 121308-121311 07/18 

 

DANGER 

 Uncontrolled operation may result in personal injury 

and damage to the vacuum pump system. 

 

When using several vacuum pump systems, there is 
the danger of confusing them, which can result in 
undesired interference into other processes: The 
transmission of commands from the wrong hand 
terminal for the vacuum pump system may trigger an 
uncontrolled response in the vacuum pump system 
that the terminal controls. 

 

  Every time a vacuum pump system is used with 

a hand terminal, it is essential to ensure a 
correct match between the two components. Use 
the paging function for this purpose (see 
Actuating the vaccum pump system, page 29). 

  Additionally it is possible to use color stickers to 

indicate which hand terminal belongs to which 
vacuum pump system (see chapter 

11. Ordering 

information

). 

 

 

WARNING 

 Uncontrolled operation may result in personal injury 

and damage to the vacuum pump system. 

 

If the wireless connection between the hand terminal 
and vacuum pump system is broken, the vacuum 
pump system will continue to operate with the cur-
rent settings. 

 

  Immediately determine and remove the cause of 

the interruption between the hand terminal and 
vacuum pump system (chapter 10, page 40). 

  If you are not able to reestablish wireless 

contact, replace the hand terminal back to the 
vacuum pump system (chapter 8.1.1, page 23)
The vacuum pump system can also be operated 
directly and the ventilation valve and coolant 
valve can be opened and closed directly 
(chapter 8.2, page 32). 

 

 

WARNING 

 Personal injury caused by poisoning or explosion 

and damage to the vacuum pump system. 

 

  Make sure that no reactive or explosive mixtures 

will be produced when ventilating the vacuum 
pump system through the air inlet. 

 

Summary of Contents for SC 920G

Page 1: ...ons english Operating Instructions Read and observe this Operating Instructions Vacuum pump system with wireless remote control SC 920G KNF Neuberger GmbH Alter Weg 3 D 79112 Freiburg Germany Phone 49...

Page 2: ...o PC Power supply for hand terminal Operating Instructions Abbreviated instructions CD with digital Operating Instructions and software for operating the vacuum pump system with a PC Allen key for tra...

Page 3: ...6 1 Installation 17 6 2 Connection 18 7 Operation 19 7 1 Start up 19 7 2 Taking system out of operation 22 8 Operating vacuum pump system 23 8 1 Hand terminal 23 8 1 1 General functions and displays 2...

Page 4: ...ailure to do so may result in damage or injury 1 2 Symbols and Markings Warning WARNING A danger warning is located here Possible consequences of a failure to observe the warning are specified here Th...

Page 5: ...he pump The high performance condenser must be installed on the outlet side of the pump if it is installed on the inlet side there is a danger of implosion Observe the correct usage of the gas and coo...

Page 6: ...ains plug from power source Ensure that the employees check that the hand terminal is the right one for this particular system before using a SC 920G vacuum pump system Vacuum pump systems are equippe...

Page 7: ...The vacuum pump system SC 920G conforms to the Directive 2011 65 EU RoHS2 The vacuum pump system SC 920G conforms to the safety regulations of the EC Directive 2014 30 EU concerning Electromagnetic Co...

Page 8: ...open gas ballast Delivery rate at atm pressure l min 0 21 controllable Max permissible pressure at inert gas connection bar g 0 1 Ambient and media temperature Permissible ambient temperature 10 C to...

Page 9: ...rature 15 C to 20 C Coolant connections on high peformance condenser For tube ID 8 mm Coolant wetted surface cm2 Min 460 Electrical data vacuum pump system Voltage V 100 240 10 Frequency Hz 50 60 Max...

Page 10: ...ding on number of entries and data transmission Charging time about 7 h Tab 3 Applies to standard included batteries When charging the hand terminals of the SC 920G vacuum pump system use only the ori...

Page 11: ...condenser 5 Gas ballast switch 6 Ventilation connection 7 Vacuum chamber connection gas inlet 8 Hexagonal gland 9 Pump 10 Base 11 Flask clamp for 12 12 Suction side condensation collection flask coat...

Page 12: ...f the pump suctioned from the vacuum chamber The collection flask is coated implosion protection and fastened to the vacuum pump system via a flask clip The high performance condenser at the pump outl...

Page 13: ...quickly as possible Option Automatic with time after the start of the process Automatic detection of the boiling pressure If the set limit pressure is reached without a vapor pressure the program goe...

Page 14: ...cess control active control of the distillation using the setpoint pressure In order to change to another operating mode the process is first stopped and then restarted in the new operating mode The g...

Page 15: ...from the holder see chapter 8 1 1 page 23 on the vacuum pump system This provides a convenient way to operate the vacuum pump system when it is in a cabinet or under a closed fume hood Whenever the h...

Page 16: ...upward stroke the diaphragm presses the medium out of the pump head via the outlet valve 1 The transfer chamber 3 is hermetically separated from the pump drive 7 by the diaphragm 5 5 Gas ballast WARN...

Page 17: ...he vacuum pump system Protect the vacuum pump system from dust Protect the vacuum pump system from vibrations and jolts Only connect components to the vacuum pump system which are designed for the pne...

Page 18: ...ntity of gas at the gas outlet and do not install any compo nents that hinder the gas flow Safely discharge gas exhaust so that no gas can escape into the ambient air Make sure that the high performan...

Page 19: ...er is not pressure proof Vacuum pump system is at room temperature Vacuum pump system and hand terminal belong together No reactive explosive or otherwise hazardous mixtures may be produced when venti...

Page 20: ...to indicate which hand terminal belongs to which vacuum pump system see chapter 11 Ordering information WARNING Uncontrolled operation may result in personal injury and damage to the vacuum pump syste...

Page 21: ...e condenser s gas outlet is not blocked In order for the high performance condenser to recover solvent from the delivered gas it must be cooled by means of a cold water supply or recirculating cooler...

Page 22: ...ing aggressive media flush the vacuum pump system prior to switch off to increase the service life of the diaphragms see chapter 9 2 1 page 33 Switch off vacuum pump system with mains switch see fig F...

Page 23: ...b a touchscreen The rotary push knob has the following functions Rotate Changes pump capacity or the selected pressure setting depending on selected operating mode Press Interrupts the active process...

Page 24: ...e hand terminal is switched on or off Every time you use a hand terminal check to ensure a correct match between the terminal and the vacuum pump system Use the paging system for this purpose see Actu...

Page 25: ...essure is applied as the setpoint pressure Fig 9 Menus and buttons on the touchscreen 8 1 2 Operation Menu language When the start page appears after switching the hand terminal on choose between the...

Page 26: ...ging operating mode see Fig 11 at the top Operating mode can be changed only when no process is active Switching to manual process control Break Press briefly on the rotary push knob Manual process co...

Page 27: ...ventilation valve remains open If the ventilation valve is permanently open OFF button shown in display it can be closed again with the OFF button Opening and closing coolant valve accessory Pressing...

Page 28: ...e is applied as the new setpoint pressure and the vacuum pump system regulates to this pressure The current setpoint pressure is shown in the display in place of the arrow If you press again on the se...

Page 29: ...t a selected line To change columns e g from t to p mbar Press the rotary push knob To change an entry Turn the rotary push knob After the last column the display automatically returns to line selecti...

Page 30: ...r the active process Fig 8 5 page 25 in the hand terminal display the LED next to the page button Fig 15 page 32 on the vacuum pump system will blink The other way around the hand terminal will answer...

Page 31: ...partly or total defect of the hand terminal Only handle the hand terminal at an ESD protected area EPA by a qualified person under the IEC 61340 5 1 directive 1 Loosen the four screws on the underside...

Page 32: ...close the ventilation valve Open and close the high performance condenser s coolant valve accessory Call the hand terminal paging the hand terminal will answer with a signal tone 1 Stop process button...

Page 33: ...or explosive mixtures can form Before switching off the vacuum pump system separate it from the vacuum chamber and flush it with air if necessary for safety rea sons with an inert gas under atmospher...

Page 34: ...h KNF 121308 121311 07 18 Pressure side 1 Grasp the collection flask Fig 2 15 page 11 and simulta neously remove attachment clamp 16 pull out collection flask 2 Dispose of contents in collection flask...

Page 35: ...and pump Depending on the substance transferred caustic burns or poisoning are possible Wear protective clothing if necessary e g protective gloves Flush vacuum pump system before replacing the diaphr...

Page 36: ...rod 21 do not fall into the pump housing If diaphragm spacers should adhere to the diaphragms take them off and put them on the thread of the corresponding connecting rod In order to ensure the pneuma...

Page 37: ...ion see fig 17 7 Dispose of the old diaphragms and valve plates sealings properly Mount pump head 1 Place head plate 9 on intermediate plates 10 13 and 14 in the position indicated by the drawing line...

Page 38: ...uum Pump System SC 920G 38 Translation of original Operating Instructions English KNF 121308 121311 07 18 Final steps 1 Reconnect vacuum pump system tubing 2 Reconnect vacuum pump system to the electr...

Page 39: ...substance transferred caustic burns or poisoning are possible Wear protective clothing if necessary e g protective gloves Flush vacuum pump system before replacing overpressure valve see chapter 9 2 1...

Page 40: ...fuse s of the vacuum pump system Push the locking clip on the fuse drawer down Fig 3 4 p 12 and pull the drawer out Replace the defective fuse s for fuse specifications see chapter 4 1 page 8 for fuse...

Page 41: ...ystem up in evacuation mode 100 capacity Observe the safety instructions in chapter 3 2 Using air Open gas line Fig 2 7 p 12 to the surrounding environment and start system up in evacuation mode 100 c...

Page 42: ...is sitting correctly replace if necessary For ordering number see chapter 11 page 45 Tab 7 Hand terminal Problem Cause Solution Hand terminal cannot be removed from vacuum pump system Transport fasten...

Page 43: ...is currently in operation Use the page function see Actuating the vaccum pump system p 29 to check whether the right hand termi nal is being used Acoustic alarm sounds on hand terminal Batteries low C...

Page 44: ...as been changed Set desired unit of pressure Leaks in system See Tab 8 Required vacuum not generated even though pump is running Recalibration of pressure sensor required Contact KNF Service Tab 9 Fau...

Page 45: ...ndenser 047807 Battery set for hand terminal see chapter 8 1 3 page 31 117427 Power supply for hand terminal 312797 USB cable 136174 Mains cable D 026363 Mains cable CH 027523 Mains cable GB 029866 Ma...

Page 46: ...nt valve 117121 Color sticker for indicating correct match between hand terminal and vacuum pump system 117433 Chemical resistant protective film for hand terminal display 117407 Wall fixture hand ter...

Page 47: ...tamination form For optimal processing of a return a copy of this declaration should be sent in advance via e mail regular mail or fax to KNF Customer Service refer to final page for address In order...

Page 48: ...Health and safety clearance and decontamination form Vacuum Pump System SC 920G KNF worldwide Find your local KNF partner on www knf com 13 Health and safety clearance and decontamination form...

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