page 1 of 41 Technology for Vacuum Systems Instructions for use VNC 2 E Vacuum Controller Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully the validity of this document with respect to his product. Manual-no.
page 2 of 41 Dear customer, Your VACUUBRAND vacuum controller shall support you at your work for a long time without any trouble and with full load output. Thanks to our large practical experience we attained much information how you could add to an efficient application and to personal safety. Please read these instructions for use prior to the initial start-up of your controller.
page 3 of 41 DE Achtung: Die vorliegende Betriebsanleitung ist nicht in allen EU-Sprachen verfügbar. Der Anwender darf die beschriebenen Geräte nur dann in Betrieb nehmen, wenn er die vorliegende Anleitung versteht oder eine fachlich korrekte Übersetzung der vollständigen Anleitung vorliegen hat. Die Betriebsanleitung muss vor Inbetriebnahme der Geräte vollständig gelesen und verstanden werden, und alle geforderten Maßnahmen müssen eingehalten werden.
page 4 of 41 FI Huomio: Tämä käyttöohje ei ole saatavilla kaikilla EU: n kielillä. Käyttäjä ei saa käyttää laitetta, jos hän ei ymmärrä tätä ohjekirjaa. Tässä tapauksessa on saatavilla oltava teknisesti oikein tehty ja täydellinen ohjekirjan käännös. Ennen laitteen käyttöä on ohjekirja luettava ja ymmärrettävä kokonaan sekä suoritettava kaikki tarvittavat valmistelut ja muut toimenpiteet.
page 5 of 41 NL Attentie: Deze gebruiksaanwijzing is niet in alle talen van de EU verkrijgbaar. De gebruiker moet niet met dit apparaat gaan werken als voor hem/haar de gebruiksaanwijzing niet voldoende duidelijk is. Bij gebruik van deze apparatuur is het noodzakelijk een technisch correcte vertaling van de complete gebruiksaanwijzing te hebben. Voor het in gebruik nemen van het apparaat moet de gebruiksaanwijzing volledig gelezen en duidelijk zijn en dienen alle benodigde maatregelen te zijn genomen.
page 6 of 41 Contents Safety information.......................................................................................................7 General information.............................................................................................................................7 Intended use........................................................................................................................................7 Connecting the controller...........................................
page 7 of 41 Safety information General information ☞ Read and comply with this manual before installing or operating the equipment. ☞ Do not use the equipment if it is damaged. NOTICE To operate the vacuum controller, valves and/or vacuum pumps are necessary. Otherwise the controller works as measuring device. Remove all packing material, remove the product from its packing-box, remove the protective covers and keep, inspect the equipment.
page 8 of 41 • • • NOTICE Check the power source and the equipment’s rating plate to be sure that the power source and the equipment match in voltage, phase, and frequency. In case of residues or aggressive or condensable media install a gas washing bottle if necessary. Use inert gas for venting if necessary. Avoid overpressure of more than 0.2 bar in case inert gas is connected. The VNC 2E is equipped with a short circuit proof wide range power supply with an integrated overload protection.
page 9 of 41 • Ensure that the materials of the controller’s wetted parts are compatible with the substances in the vacuum system, see section „Technical data“, pg. 12. Safety during operation ➨ Adopt suitable measures to prevent the release of dangerous, toxic, explosive, corrosive, noxious or polluting fluids, vapours and gases. + Prevent any part of the human body from coming into contact with vacuum.
page 10 of 41 NOTICE Ensure that maintenance is done only by suitably trained and supervised technicians. Ensure that the maintenance technician is familiar with the safety procedures which relate to the products processed in the vacuum system. Interior components of the controller can only be repaired at the factory.
page 11 of 41 ` Important information: Equipment marking (ATEX) VACUUBRAND equipment bearing mark (see rating plate) II 3G IIC T3 X Internal Atm. only Tech. File Ref.: VAC-EX01 and VACUUBRAND equipment bearing mark (see rating plate) X see manual For equipment labelled with „ X see manual“ the following classification according to Directive 94/9/EC (ATEX) is valid: II 3G IIC T3 X, Internal Atm. only, Tech. File Ref.: VAC-EX01.
page 12 of 41 Technical data Controller Pressure transducer Display Pressure units / scale (selectable) VNC 2 E capacitive, absolute pressure transducer made of aluminium oxide ceramics, independent of gas type alphanumeric LCD display, illuminated 2 x 8 characters mbar, Torr or hPa Measuring range (absolute) 1100 mbar - 1 mbar (825 Torr - 1 Torr) Maximum range of pressure control (absolute)* 1060 mbar – 1 mbar (795 Torr – 1 Torr) Maximum permissible pressure at pressure transducer (absolute) 1.
page 13 of 41 Controller VNC 2 E Degree of protection according to IEC 529 IP 20 (rear) IP 54 (front) Vacuum connection hose connection for PTFE tubing 8/10mm Weight 1.4 kg Dimensions (without cable) L x W x H 203 x 90 x 130 mm Installation depth behind rear of front panel 130 mm Mains connection IEC plug / socket at cable 1m Solenoid operated valve Operating cycles per minute max. 50 Power draw 6W Power supply 24 V= ±10% Current draw approx. 0.
page 14 of 41 Description NOTICE When switching on the controller, the current basic mode and the version number are displayed for 2s.
page 15 of 41 VNC 2 E connections fuse carrier vacuum connection to application (hose connection for PTFE tubing DN 10/8 mm) connection mains cable: permissible voltage and current: see rating plate of the NT pump or pumping unit in-line valve socket for connection of pump connection towards pump (hose connection for PTFE tubing DN 10/8 mm) serial interface RS 232 C Version for vertical assembly on/off switch socket for connection of in-line valve and additional VACUU•BUS components like e.g.
page 16 of 41 Cut-out for front assembly Note: The second label ”8 AT” fixed with adhesive tape is intended to be glued onto the front plate of the laboratory furniture. Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully the validity of this document with respect to his product. Manual-no.
page 17 of 41 Notes on operation For operation it is necessary to install valves and/or vacuum pumps. Without those components, the controller will work only as a vacuum measurement device. As such the controller will switch a possibly connected coolant valve. When switching on the controller VNC 2 for the very first time, a menu to select the language of the controller menu is displayed. Select the desired language (”Deutsch”, ”English”, ”Français”) using the keys t and s, and press ”Enter” to confirm.
page 18 of 41 Menu structure of controller pControl V. 1.00 Switch on after 2 sec 1013mbar Start ↵ ol” Esc co va cu um within 2 sec os sib le in ” Esc ntr within 2 sec ly p on Function menu Function Cont.
page 19 of 41 Notes on configuring the controller Time delay • At the end of the process the coolant continues to flow according to the preset time delay. If an in-line valve is connected, a connected pump also runs for the preset time delay with in-line valve closed for self cleaning.
RS 232 Handsh. not possible see section p. 26 ”Interface parameters” p. 25 ”Readjustment” see section Sound On RS 232 Parity Cal.Sens Cal.Atm RS 232 Remote Sound Off RS 232 Baud Cal.Sens Cal.Vac Select Sound Select RS 232 Select Cal.
page 21 of 41 Working with the controller Factory-set mode ”Vacuum control” (pControl) Control with in-line valve: • Control of a vacuum pump via an in-line valve. The pump continues to run according to the preset time delay. This can considerably reduce possible condensation inside the pump. The coolant valve is open during vacuum control and during time delay. • For synchronous switching of the pump and the in-line valve: Configure the time delay in the device menu: Delay: off.
page 22 of 41 Adapting parameters during the regulation: • • • Interruption: Press key ”Enter”, the control stops; after releasing the key, the control continues. During the interruption the preset pressure can be set to the actual pressure by pressing the key ▼. By pressing the key ▲, the hysteresis can be set to the actual pressure. Performing both tasks in a row results in hysteresis 0 = Auto, because the preset pressure as well as the hysteresis are set to the same pressure value.
page 23 of 41 Switching to ”continuous pumping” (Cont.pump) using the function menu (see section „Menu structure of controller“, pg. 18) ➨ Operation of a vacuum pump using an in-line valve or direct switching of a pump Settings in the program menu: ☞ Switch-off time (t Off): The duration of the process control (continuous pumping) can be preset. ☞ Limit pressure (Limit): Shut down of the pump, if the actual pressure has fallen below a preset pressure limit ”Limit”, e.g. for drying chamber applications.
page 24 of 41 Status messages displayed during operation of a program The messages are always displayed in the second line, the first line always displays the pressure value.
page 25 of 41 Readjustment The vacuum gauge was adjusted using factory standards, which are traceable through regular calibration in an accredited laboratory (DAkkS calibration laboratory) to the national standard. Depending on the process and/or accuracy requirements, check the adjustment from time to time and readjust if necessary. For readjustment, the device has to be adjusted both at atmospheric pressure as well as under vacuum.
page 26 of 41 Calibration in the factory Control of measuring equipment The VACUUBRAND DAkkS calibration laboratory is accredited by the Deutsche Akkreditierungsstelle GmbH (national accreditation body of the Federal Republic of Germany) for the measurable variable pressure in the pressure range from 7.
page 27 of 41 Read commands compatible to ”CVC 2000” Function Command Response Description actual vacuum IN_PV_1 XXXX mbar or XXXX Torr or XXXX hPa unit according to preselection actual pumping speed IN_PV_2 XX.
page 28 of 41 Read commands compatible to ”CVC 2000” status of IN_STAT XXXX process control 00: VACUU•LAN: inactive 01: pumping down, actual pressure > selected 02: pumping down, time is running pressure 03: system is switched off 10: continuous pumping: inactive 11: active 20: vacuum control: inactive 21: actual pressure > selected pressure (+ hysteresis) 22: actual pressure = selected pressure (+/- 1mbar) 23: actual pressure <
page 29 of 41 Write commands compatible to ”CVC 2000” Function Command Parameter Description operation mode OUT_MODE X 0: VACUULAN 1: continuous pumping 2: vacuum control 4: RC 5/6 management preset vacuum OUT_SP_1 XXXX unit according to preselection (0001 to 1060 mbar (hPa) or 0001 to 0795 Torr) preset vacuum with venting* OUT_SP_V XXXX unit according to preselection (0001 to 1060 mbar (hPa) or 0001 to 0795 Torr) preset speed OUT_SP_2 XX.X speed in Hz (99.
page 30 of 41 Read commands compatible to ”CVC 3000” Function Command Response Description actual vacuum IN_PV_1 XXXX.
page 31 of 41 Read commands compatible to ”CVC 3000” Function Command Response status of process control IN_STAT XXXXXX Description 0: control off 1: pump down 2: set vacuum reached 3: vacuum below set vacuum 0: VACUULAN 1: Continuous pumping 2: Vacuum control 4: RC 5/6 management 0: venting valve closed 1: venting valve open 0: coolant valve closed 1: coolant valve open 0: in-line valve closed 1: in-line valve open 0: pump off 1: pump on fault status IN_ERR XXXXXXXXX 0: last interface command co
page 32 of 41 Read commands compatible to ”CVC 3000” Function Command Response Description set vacuum IN_SP_1 XXXX mbar or XXXX Torr or XXXX hPa unit according to preselections speed IN_SP_2 XXX% maximum speed (100% = ”HI”) start-up pressure IN_SP_3 XXXX mbar or XXXX Torr or XXXX hPa start-up pressure for VACUULAN or two point control delay IN_SP_4 XX:XX hh:mm delay (00:00 = Off) switch off pressure IN_SP_5 XXXX mbar or XXXX Torr or XXXX hPa switch off pressure (”Maximum” for ”Vacuum
page 33 of 41 Write commands compatible to ”CVC 3000” Function Command Parameter operation mode OUT_MODE X set vacuum OUT_SP_1 XXXX unit according to preselection (0001 to 1060 mbar (hPa) or 0001 to 0795 Torr) set vacuum with venting* OUT_SP_V XXXX unit according to preselection (0001 to 1060 mbar (hPa) or 0001 to 0795 Torr) speed OUT_SP_2 XXX speed in %, (100% = ”HI”) start-up pressure OUT_SP_3 XXXX unit according to preselection (0001 to 1060 mbar (hPa) or 0001 to 0795 Torr) dela
page 34 of 41 Troubleshooting Fault Possible cause ❏ ➨ Mains cable not plugged in or ✔ device not switched on? ➨ Fuse defective? ✔ Check fuse in building and fuse at switch output of VNC 2, replace if necessary. ➨ Other causes (device defective)? ✔ Contact local distributor. Display disappears, inter- ➨ nal overload protection activated. Thermal overload at controller, ambient temperature too high? ✔ Ensure adequate ventilation. ➨ Short circuit at connected valves? ✔ Replace valves.
page 35 of 41 Fault Possible cause ❏ ➨ Error message ”ErrValve”, four beeps. ❏ Error message ”p Error”, five beeps. Remedy Coolant valve removed or defective? ✔ Connect or check coolant valve. In case install a new coolant valve or configure controller without coolant valve. Switch controller off/ on.
page 36 of 41 Cleaning the pressure transducer The controller itself is maintenance-free. Contamination of the pressure transducer or deposits will influence the accuracy of measurement. NOTICE Attention: Never use hard objects to clean the pressure transducer! ➨ Fill the chamber of the pressure transducer with a solvent (e. g. benzene) and allow sufficient cleaning time.
page 37 of 41 Accessories Coolant valve VKW-B 24 V= .....................................674220 - compact design, designed for a high number of operations at short intervals - solenoid systems with splash protection - conductance optimised for applications with rotary evaporator and exhaust waste vapour condenser - with integrated Y-connector to connect an in-line valve In-line valve VV-B 6, 24 V= ........................................674290 In-line valve VV-B 6C, 24 V= .................................
page 38 of 41 Notes on return to the factory Repair - return - DAkkS calibration NOTICE Safety and health of our staff, laws and regulations regarding the handling of dangerous goods, occupational health and safety regulations and regulations regarding safe disposal of waste require that for all pumps and other products, the “Health and safety clearance form“, must be sent to our office fully completed and signed before any equipment is shipped to the authorized service centre Fax or mail a completed cop
page 39 of 41 Health and safety clearance form Devices will not be accepted for any handling before we have received this declaration. Please read and comply with ”Notes on return to the factory”. Oil filled pumps: Drain oil prior to shipping absolutely! 1. Device (Model): ................................................................... 2. Serial no.: ......................................... 3. Reason for return / malfunction: ............................................................................
page 40 of 41 EG-Konformitätserklärung EC Declaration of Conformity Déclaration CE de conformité Hersteller / Manufacturer / Fabricant: VACUUBRAND GMBH + CO KG · Alfred-Zippe-Str. 4 · 97877 Wertheim · Germany Hiermit erklärt der Hersteller, dass das Gerät konform ist mit den Bestimmungen der Richtlinien 2006/95/EG und 2004/108/EG. Hereby the manufacturer declares that the device is in conformity with the directives 2006/95/EC and 2004/108/EC.
page 41 of 41 Disclaimer: Our 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 provided in this literature will, consequently, be entertained.
