Part I page 1 of 102 Technology for Vacuum Systems Instructions for use Part I of II Part I: Safety information - Technical data Use and operation PC 500 LAN NT PC 600 LAN NT Chemistry pumping units
page 2 of 102 Dear customer, Your VACUUBRAND diaphragm pumps are designed to provide you with many years of trouble-free service with optimal performance. Our many years of practical experience allow us to provide a wealth of application and safety information. Please read these instructions for use before the initial operation of your pump.
page 3 of 102 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 102 DA Bemærk: Denne manual foreligger ikke på alle EU sprog. Brugeren må ikke betjene apparatet hvis manualen ikke er forstået. I det tilfælde skal en teknisk korrekt oversættelse af hele manual stilles til rådighed. Manual skal være gennemlæst og forstået før apparatet betjenes og alle nødvendige forholdsregler skal tages. »Sikkerhedsregler for vakuumudstyr« EE Tähelepanu! Käesolev kasutusjuhend ei ole kõigis EL keeltes saadaval.
page 5 of 102 HU Figyelem! Ez a kezelési utasítás nem áll rendelkezésre az EU összes nyelvén. Ha a felhasználó nem érti jelen használati utasítás szövegét, nem üzemeltetheti a készüléket. Ez esetben a teljes gépkönyv fordításáról gondoskodni kell. Üzembe helyezés előtt a kezelőnek végig kell olvasnia, meg kell értenie azt, továbbá az üzemeltetéshez szükséges összes mérést el kell végeznie.
page 6 of 102 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 7 of 102 SE Varning: Denna instruktion är inte tillgänglig på alla språk inom EU. Användaren får inte starta utrustningen om hon/han inte förstår denna instruktion. Om så är fallet måste en tekniskt korrekt instruktion göras tillgänglig. Instruktionen måste läsas och förstås helt före utrustningen tas i drift och nödvändiga åtgärder göres. ”Säkerhetsinformation för vakuumutrustning” SI Pozor: Ta navodila niso na voljo v vseh jezikih EU. Uporabnik ne sme upravljati z napravo, če ne razume teh navodil.
page 8 of 102 Contents Part I................................................................. 1 Safety information!............................................................ 10 Important information!........................................................................ 10 General information............................................................................ 12 Intended use......................................................................................
page 9 of 102 Read commands compatible to ”CVC 2000”..................................... 67 Write commands compatible to ”CVC 2000”..................................... 68 Read commands compatible to ”CVC 3000”..................................... 70 Write commands compatible to ”CVC 3000”..................................... 72 Accessories....................................................................... 74 How to determine the best distillation conditions �������� 75 Troubleshooting...............
page 10 of 102 Safety information! Important information! + Keep this manual complete and accessible to personnel at all times! + Read this manual carefully before installing or operating the equipment. Observe the instructions contained in this manual. + Do not modify the equipment without authorization. NOTICE This manual is an integral part of the equipment described therein. It describes the safe and proper use of the vacuum pump. The manual consists of two parts.
page 11 of 102 ➨ DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. + WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. NOTICE • CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE is used to address practices not related to personal injury. Caution! Hot surface! Disconnect equipment from AC power.
page 12 of 102 General information NOTICE Remove all packing material from the packing box. Remove the product from its packing-box and retain all packaging until the equipment is inspected and tested. Remove the protective caps from the inlet and outlet ports and retain for future use. Inspect the equipment promptly and carefully. If the equipment is damaged, notify the supplier and the carrier in writing within three days. Retain all packing material for inspection.
page 13 of 102 + Do not use the pump to generate pressure. + The pumps are designed for ambient temperatures during operation between +50°F and +104°F (+10°C and +40°C). Periodically check maximum temperatures if installing the pump in a cabinet or a housing. Make sure ventilation is adequate to maintain recommended operating temperature. Install an external automatic ventilation system if necessary. If pumping hot process gases, make sure that the maximum permitted gas inlet temperature is not exceeded.
page 14 of 102 ☞ Due to the high compression ratio, the pump may generate overpressure at the outlet. Check pressure compatibility with system components (e.g., exhaust pipeline or exhaust valve) at the outlet. ☞ Do not permit any uncontrolled pressurizing. Make sure that the exhaust pipeline cannot become blocked.
page 15 of 102 • Ensure that the coolant outlet pipe is always free and that it cannot get blocked. If installing an optional coolant valve, it must always be in the supply line of the exhaust waste vapor condenser. NOTICE Make sure ventilation is adequate to maintain recommended operating temperature. Keep a minimum distance of 2 in (5 cm) between the cooling fan and surrounding items (e.g., housing, walls, etc.), or else install an external automatic ventilation system.
page 16 of 102 • Adopt suitable measures in case of differences from recommended conditions, e.g., using the equipment outdoors, installation in higher altitudes, conductive pollution or external condensation on the pump. • Do not operate this product near flames. NOTICE To the best of our knowledge the equipment is in compliance with the requirements of the applicable EC-directives and harmonized standards (see ”Declaration of Conformity”) with regard to design, type and model.
page 17 of 102 - substances which react explosively when being exposed to elevated temperatures without air, - substances subject to auto-ignition, - substances which are inflammable without air - explosive substances. ➨ The pumps are not approved for operation below ground. Do not operate the pump below ground. • Do not pump substances which may form deposits inside the pump. The pumps are not suitable for pumping substances which may form deposits inside the pump.
page 18 of 102 of such substances from the pump outlet, install an appropriate collecting and disposal system and take protective action for pump and environment. ➨ You must take suitable precautions to prevent any formation of explosive mixtures in the pump chamber or at the outlet of the pump. In case, e.g., of a diaphragm failure, mechanically generated sparks, hot surfaces or static electricity may ignite these mixtures. Use inert gas for gas ballast or venting, if necessary.
page 19 of 102 elastomers). Use appropriate protective clothing and safety goggles. + Interruption of the pump (e.g., due to power failure), failure of connected components or of parts of the supply, or change in parameters must not be allowed to lead to dangerous conditions. In case of a diaphragm failure or in case of a leak in the manifold, pumped substances might be released into the environment or into the pump housing or motor.
page 20 of 102 system will not lead to any dangerous condition. Provide appropriate safety measures. Check prior to starting the process whether the option ”Autostart” (device menu) is enabled. • Pay attention to the safety symbol ”hot surfaces” on the equipment. Hot parts may cause burns if touched. Adopt suitable measures to prevent any danger arising from hot surfaces or electric sparks. Ensure that hot surfaces of the pump do not cause burns. Provide a suitable contact guard if necessary.
page 21 of 102 • Note: In case of supply voltage below 100V, the lock of the cutout might be impaired and the pump may restart on its own after sufficient cooling down. Take appropriate precautions, if an automatic restart of the pump may lead to a dangerous situation (e.g., switch off the pump and disconnect from the power source).
page 22 of 102 ☞ Take adequate precautions to protect people from the effects of dangerous substances if contamination has occurred. Use appropriate protective clothing, safety goggles and protective gloves. + Wear parts have to be replaced regularly. + Never operate a defective or damaged pump. + Check every motor capacitor regularly by measuring its capacity and estimating its time in operation. Replace old capacitors early enough to prevent a failure in operation.
page 23 of 102 ` 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 24 of 102 The pumps are marked with ”X” (according to EN 13463-1), i.e., restrictions of the operation conditions: • The equipment is designated for a low degree of mechanical stress and has to be installed in a way so that it cannot be damaged from outside. Pumping units have to be installed so that they are protected against shocks from the outside and against glass splinters in the event of breakage (implosion).
page 25 of 102 Technical data Type PC 500 LAN NT PC 600 LAN NT Maximum pumping speed* 50/60 Hz (ISO 21360) cfm (m3/h) 1.2 / 1.4 (2.0 / 2.3) 2.0 / 2.2 (3.4 / 3.8) Ultimate vacuum (absolute) without gas ballast Torr (mbar) 5.3 (7) 1.1 (1.5) Ultimate vacuum (absolute) with Torr gas ballast (mbar) 9.0 (12) 2.3 (3) Maximum permissible inlet pressure (absolute) psi (bar) 16 (1.1) Maximum permissible outlet pressure (absolute) psi (bar) 16 (1.
page 26 of 102 Type PC 500 LAN NT Degree of protection IEC 529 PC 600 LAN NT IP 40 Inlet connection for PTFE tube O.D. 3/8”, I.D. 5/16” (10 / 8 mm) Outlet hose nozzle for tubing I.D. 3/8” (hose nozzle DN 10 mm) Coolant connection (waste vapor condenser) Maximum permissible pressure of coolant at waste vapor condenser hose nozzle for tubing I.D.
page 27 of 102 Controller VNC 2 Measurement uncertainty (absolute) after careful adjustment and at constant temperature <± 0.75 Torr (1 mbar) ± 1 digit Temperature coefficient <± 0.05 Torr/K (0.
page 28 of 102 Wetted parts Components Wetted materials Pump Head cover; diaphragm clamping disc ETFE carbon fiber reinforced Diaphragm PTFE Valves FFKM O-rings FPM Valve head ECTFE carbon fiber reinforced Tubing PTFE Gas ballast tube PTFE carbon reinforced Pumping unit Inlet pumping unit PPS Outlet pumping unit PET Distribution head PPS glass fiber reinforced Tubing PTFE Screw-in fittings ETFE / ECTFE O-ring at the catchpot Fluoroelastomer Overpressure safety relief device at e
page 29 of 102 Gas inlet temperatures Operating condition Inlet pressure Continuous operation > 75 Torr (100 mbar) (high gas load) < 75 Torr (100 mbar) (low gas load) < 75 Torr (100 mbar) (low gas load) Continuous operation Short-time (< 5 minutes) Permitted range of gas temperatures at inlet ➨ 50 °F to 104 °F (+10°C to +40°C) ➨ 32 °F to 140 °F* (0°C to +60°C*) ➨ 14 °F to 176 °F* (-10°C to +80°C*) * if pumping potentially explosive atmospheres: 50 °F to 104 °F (+10°C to +40°C) Abbreviations ETFE: Et
page 30 of 102 PC 500 LAN NT 2 7 3 13 8 4 12 5 6 10 11 1 4 9 14 PC 600 LAN NT 2 7 4 8 13 12 5 3 6 10 11 4 1 9 14
page 31 of 102 Use and operation 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 (e.g., ”English”) by pressing the t or s keys and press ”Enter” to confirm. Then select the pressure unit (”mbar”, ”Torr” or ”hPa”) in the same way. It is possible to access the language selection menu at any time via the ”Device menu”.
page 32 of 102 + Make sure ventilation is adequate, especially if the pump is installed in an enclosure, or if the ambient temperature is elevated. Provide external ventilation, if necessary. • Reduce the transmission of vibration. Prevent mechanical load due to rigid pipelines. Insert elastic hoses or flexible elements as couplings between the pump and rigid pipes. Note: Flexible elements will compress or flatten when evacuated if not designed for use under vacuum.
page 33 of 102 To reduce pump noise emanating from the pump exhaust port, connect an exhaust hose or use a silencer (see “Accessories”, pg. 74). The VACUUBRAND VNC 2 controller can only be operated with components compatible with the VACUUBRAND VACUU•BUS system, (see “Accessories”, pg. 74). The VNC 2 vacuum controller controls VACUUBRAND diaphragm pumps NT and optional in-line, coolant, and venting valves. Connected components (e.g.
page 34 of 102 Connection of components at the controller At the side of the controller are the serial interface RS-232 C and VACUU•BUS jacks for connection of accessory components: in-line valve / coolant valve / external pressure transducer / external venting valve / etc. ☞ Plug the VACUU•BUS lines of accessory components into the VACUU•BUS jacks. Do not apply off-axis forces when assembling or removing plug connections! Observe correct orientation of the plugs.
page 35 of 102 condensation of humidity and is intended to absorb shocks. ➨ Attach the tubing of the coolant circuit to the respective hose nozzles (hose nozzles for tubing I.D. 1/4”-5/16” (6-8 mm), see image) at the waste vapor condenser. NOTICE Check all hose connections prior to starting operation of the cooling system. Secure coolant hoses at the hose nozzles (e.g., with hose clamps) to prevent their accidentally slipping off.
page 36 of 102 The pumping units feature two separate ON/OFF switches, one at the diaphragm pump and another one at the VNC 2 controller. To operate the pumping unit you must switch on both the pump and the controller! During operation ➨ Vent and dispose of potentially dangerous gases or vapors at the outlet of the pump appropriately. + Due to the high compression ratio, the pump might generate overpressure at the outlet. Check pressure compatibility with system components (e.g.
page 37 of 102 NOTICE Do not start the pump if the pressure difference between inlet and outlet ports exceeds max. 16.0 psi (1.1 bar). Attempts to start the pump at higher pressure difference may cause stalling and damage of the motor. If pumping condensable vapors (water vapor, solvents, etc.), let the pump run with gas ballast to help purge any condensation in the pump. Prevent internal condensation, transfer of liquids or dust.
page 38 of 102 ➨ Air and pumped media might react inside the pump or at the outlet of the pump and form hazardous or explosive mixtures, when you use air rather than inert gas for the gas ballast. This constitutes a risk of significant damage to equipment and/or facilities, a risk of personal injury or even loss of life. + Make sure that air/gas intake through the gas ballast valve can never lead to hazardous, explosive or otherwise dangerous mixtures. If in doubt, use inert gas.
page 39 of 102 Important notes concerning the operation of the exhaust waste vapor condenser ➨ Connect the exhaust to a suitable treatment system to prevent the discharge of dangerous gases and vapors to the surrounding atmosphere. ☞ Never block the gas outlet ((2) hose nozzle for tubing I.D. 3/8” (10 mm)). The exhaust hose must always be unobstructed and without back-pressure to enable an unhindered discharge of gases.
page 40 of 102 Permissible range of coolant temperature at the exhaust waste vapor condenser: 5 °F to 68 °F (-15°C to +20°C) Check hose connections prior to starting operation of the cooling system. Check coolant hoses regularly during operation. Removing the catchpots: Catchpot at outlet: Remove joint clip. Remove catchpot and drain condensate. Catchpot at inlet: Admit air or inert gas (via the pump inlet) to restore atmospheric pressure in the catchpot before attempting removal. Remove joint clip.
page 41 of 102 - Clean pressure transducer at the controller if necessary. Long-term: - Take measures as described above regarding shortterm shutdown. - Separate the pump from the application. - Close inlet and outlet ports (e.g., with transport caps). - Close the gas ballast valve. - Drain catchpots. - Store the pump under dry conditions.
page 42 of 102 Description of the VNC 2 controller After the connection of components, the controller can be operated in different basic modes, see “General view of factory-set basic modes”, pg. 45. After switching on the device, the preselected basic mode and the version number of the software are displayed for two seconds. Keys Display ON/OFF switch ”Esc” ”up” ”down” ”Enter” Esc: • Stop control. • Return to previous menu level. • Interrupt operation (reset to previous settings).
page 43 of 102 Display In menus: line 1: Caption line 2: Menu item After selection of menu item: line 1: Menu item (or submenu) line 2: Parameter to be set In program: line 1: Pressure line 2: Status message. In submenus (only setting of RS-232C): line 1: Menu item (RS 232) line 2: Submenu VNC 2 connections vacuum connection jacks for connection of VACUU•BUS components (e.g.
page 44 of 102 Notes on operating the controller Valves and/or vacuum pumps are necessary to operate the controller. Note: Texts written in Courier font mirror the display of the controller. vacuum connection ☞ Maximum permissible pressure: 21.8 psi (1.5 bar) absolute. ☞ Attention: At pressures above approximately 810 Torr (1080 mbar) the pressure reading becomes incorrect due to saturation of the pressure transducer. The display will flash.
page 45 of 102 General view of factory-set basic modes VNC 2 Keep Esc key pressed while switching on Factory-set basic mode (Config) Factory-set mode ”Vacuum control” (pControl) Controller controls - pump and / or in-line valve according to preset pressure in two-point control or continuous pumping - NT VARIO pump exactly according to preset pressure* - coolant valve Factory-set mode ”VACUU•LAN” (VACUULAN) Controller controls - pump according to preset pressure and time - NT VARIO pumps according to prese
page 46 of 102 Factory-set mode ”RC 5 / RC 6 management” (RC5/RC6)1) Controller controls - chemistry-HYBRID-pump (pressure check) - in-line valve - bypass valve - coolant valve ↵ Language / Unit ↵ VACUULAN V. 1.
page 47 of 102 Menu guide pControl V. 1.00 Esc ro l” Switch on Co ”p 1013mbar Start ↵ within 2 sec on ly po ss ibl e in Esc nt within 2 sec after 2 sec ↵ Function menu Esc Device menu Esc Program menu see page 50 • Readjustment • RS 232 parameters see section • Sound ”Working with the • Units of pressure controller” pg. 52 • Auto start ”Program menu” • Lighting of display • Language • Time delay (not for VACUULAN) • Control (only for RC 5/RC 6) Function Cont.
page 48 of 102 - Readjustment: Adjustment of the pressure transducer under vacuum and/or at atmospheric pressure, see also section “Readjustment of VNC 2”, pg. 58. - RS 232 parameters: Configuration of the interface, setting of parameters and commands, see section “Interface parameters”, pg. 65. - Sound: Switching the function ”acoustic warning signal” on/off. - Pressure unit: Selecting the pressure unit mbar, Torr or hPa. - Auto start: Process starts immediately after switching on the controller.
page 49 of 102 Automatic valve detection: When switching on the controller, the configuration of the connected components is checked automatically. If a valve (in-line valve or coolant valve) is connected it is detected automatically and controlled by the VNC 2 until the controller is switched off. The last mode of operation and the preselected values (e.g., pressure value or time for switching off) are stored.
page 50 of 102 Device menu ☞ ☞ ☞ ☞ ☞ Select a menu item with ▲ or ▼ keys. Confirm selection with ”Enter” key. Adjust parameters with ▲ or ▼ keys. Confirm with ”Enter” key or return to original setting pressing ”Esc”. The new device configuration is stored completely only when the device menu is terminated by pressing ”Esc”. You can cancel a new configuration before storing it by switching the controller off before quitting the device menu. 1013mbar Start ↵ VACUULAN V. 1.
page 51 of 102 Select Units ↵ Select Auto-St. Esc ↵ Esc Units mbar Auto-St. Off Units Torr Auto-St.
page 52 of 102 Working with the controller Notes on selecting the factory-set basic mode NOTICE The controller VNC 2 can be adapted optimally to the specific application by choosing the appropriate factory-set basic mode VACUU•LAN, continuous pumping, vacuum control or RC 5/RC 6 management. The components of a chemistry vacuum system (e.g., ”Valve”, ”VACUU•LAN”) have to be preset once only. The last mode of operation and the preselected values (e.g., pressure value or time for switching off) are stored.
page 53 of 102 not been reached (pressure increase control). ☞ Upper pressure value (p On, factory-set: 150 mbar): Condition for restart of the pump when the pressure is increasing. If the pressure exceeds this pressure, the pump starts again. ☞ Lower pressure value (p Set, factory-set: 25 mbar): Condition for switching off the pump. If the pressure drops below ”p Set”, a timemeter (see ”Switch-off time”) starts to run.
page 54 of 102 Program menu in modes VACUULAN and VCL 8cyl 1013mbar Start Esc VACUULAN p Set VACUULAN p On VACUULAN t Off ↵ ↵ ↵ p Set 25mbar ☞ ☞ ☞ ☞ p On 150mbar t Off 15 min Use ▲ or ▼ keys in the program menu to select an item. Confirm selection with ”Enter” key. Adjust parameters with ▲ or ▼ keys. Confirm with ”Enter” key or return to original setting pressing ”Esc”. Status messages displayed during operation of a program The messages are always displayed in the second line.
page 55 of 102 Notes on operating a VACUU•LAN® Local Area Vacuum Network. Assembling the components of a VACUU•LAN® network: A VACUU•LAN® Local Area Vacuum Network consists of three main components: vacuum pump or vacuum pumping unit, vacuum tubing and ports. The ports, i.e.
page 56 of 102 If the pressure in the network exceeds the preset pressure of an application operated in parallel, the non-return valve of that port closes in order to protect the lower-pressure application against backflow or contamination. When the non-return valve closes, it is no longer possible to evacuate or control the application until network vacuum is restored to a level below that needed by the application.
page 57 of 102 Status of non-return valve System pressure in local vacuum network (mbar) preset pressure (mbar) 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Application 1 250 Application 2 100 Application 3 35 non-return valve closed non-return valve open Notes: If the system pressure is increasing, the port with the lowest preset pressure is closed first. At decreasing system pressure the port with highest preset pressure is opened first.
page 58 of 102 Readjustment of VNC 2 NOTICE The vacuum gauge was adjusted using factory standards, which are traceable through regular calibration in an accredited laboratory (DAkkS calibration laboratory) to the German national pressure standard. Depending on the process and/or accuracy requirements, check the adjustment and readjust if necessary.
page 59 of 102 Adjustment under vacuum 0 mbar An adjustment under vacuum is only possible if the pressure is lower than 15 Torr (20 mbar) absolute. Evacuate the measurement connection of the VNC 2 to a pressure < 0.5 Torr (mbar) (e.g. by applying a good two-stage rotary vane pump). ➨ In ”Device menu”, select program ”Cal.Sens” at the controller. ☞ The reading is automatically adjusted to ”zero”. ➨ Press the ”Enter” key to confirm. Note: Adjustment under vacuum with an actual pressure higher than 0.
page 60 of 102 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 61 of 102 Cleaning the pressure transducer The controller itself is maintenance-free. Contamination of the pressure transducer or deposits will influence the accuracy of measurement. ➨ Attention: Never use a pointed or sharp-edged tool to clean the pressure transducer. ➨ Never touch the ceramic diaphragm of the pressure transducer with hard objects. ➨ Fill the measurement chamber with a solvent (e.g., benzene) and allow sufficient cleaning time.
Part II page 62 of 102 Technology for Vacuum Systems Instructions for use Part II of II Part II: Interface parameters - Accessories Maintenance PC 500 LAN NT PC 600 LAN NT Chemistry pumping units
page 63 of 102 Contents Part I................................................................. 1 Safety information!............................................................ 10 Important information!........................................................................ 10 General information............................................................................ 12 Intended use......................................................................................
page 64 of 102 Read commands compatible to ”CVC 2000”..................................... 67 Write commands compatible to ”CVC 2000”..................................... 68 Read commands compatible to ”CVC 3000”..................................... 70 Write commands compatible to ”CVC 3000”..................................... 72 Accessories....................................................................... 74 How to determine the best distillation conditions �������� 75 Troubleshooting..............
page 65 of 102 Interface parameters The VNC 2 controller is equipped with a serial interface (RS 232C, ninepin Sub-D-plug). ☞ Plug-in or remove the cable (cable RS 232C) from the interface only if the equipment is switched off. ☞ The interface is not electrically isolated from the measuring circuit. ☞ For optimal electromagnetic compatibility assemble an interface filter (cat. no.: 638235). The controller is fully operable via the serial interface.
page 66 of 102 Setting of the interface Set the interface parameters directly at the controller VNC 2. The factory set values are underlined. Edit the interface parameters in the device menu ”Select, RS 232” using the ▲ and ▼ keys and confirm with ”Enter”. ➨ Baud: 2400, 4800, 9600 or 19200 ➨ Parity: 7 data bits odd (Parity 7-O-1); 7 data bits even (Parity 7-E-1); 8 data bits none (Parity 8-N-1) ➨ Handshake (Handsh.): no Handshake (Handsh. None), XON/XOFF Handshake (Handsh.
page 67 of 102 Read commands compatible to ”CVC 2000” Command Operation Response Description IN_PV_1 current pressure XXXX mbar/ Torr/hPa unit according to preselections IN_PV_2 current frequency XX.
page 68 of 102 Command Operation Response XX40 XX41 IN_STAT status of process control XX42 XX43 Description RC 5 / RC 6 management: not active RC 5 / RC 6 management: pumping down RC 5 / RC 6 management: preset vacuum is achieved RC 5 / RC 6 management: system is switched off Write commands compatible to ”CVC 2000” Command Operation Parameter OUT_MODE basic mode 0 1 2 4 OUT_SP_1 set vacuum XXXX unit according to preselection; (0001 to 1060 mbar (hPa) or 0001 to 0795 Torr) OUT_SP_V set vac
page 69 of 102 Command Operation OUT_VENT driving venting valve STORE store settings permanently Parameter 0 1 Description close venting valve (not automatically) open venting valve (process control stopped, valve does not close again automatically) * Pressure setting with venting is only possible in ”Vacuum control” mode if a venting valve is connected to the VNC 2 and configured, and vacuum control is started. The venting valve opens automatically if the actual pressure is at least 7.
page 70 of 102 Read commands compatible to ”CVC 3000” Command Operation Response IN_PV_1 current pressure XXXX.
page 71 of 102 Command Operation IN_STAT status process control IN_ERR fault status Response Description 0XXXXX 1XXXXX X0XXXX X1XXXX XX0XXX XX1XXX XXX0XX XXX1XX XXXX0X XXXX1X XXXX2X XXXX4X XXXXX0 XXXXX1 XXXXX2 XXXXX3 0XXXXXXXX 1XXXXXXXX X0XXXXXXX X1XXXXXXX XX0XXXXXX XX1XXXXXX XXX0XXXXX XXX1XXXXX XXXX0XXXX XXXX1XXXX XXXXX0XXX XXXXX1XXX XXXXXX0XX XXXXXX1XX XXXXXXX0X XXXXXXX1X pump off pump on in-line valve closed in-line valve open coolant valve closed coolant valve open venting valve closed venting
page 72 of 102 Command Operation Response Description IN_SP_5 switch-off pressure XXXX mbar/Torr/hPa IN_SP_6 process runtime XX:XX h:m ”Maximum” for ”vacuum control”, ”Minimum” for ”continuous pumping”) hours:minutes (00:00 = off) Write commands compatible to ”CVC 3000” Command Operation Parameter OUT_MODE basic mode 0 1 2 4 OUT-SP_1 set vacuum XXXX OUT_SP_V set vacuum with venting* XXXX OUT_SP_2 speed XXX OUT_SP_3 start-up pressure XXXX unit according to preselection; (0001 to
page 73 of 102 * Pressure setting with venting is only possible in ”Vacuum control” mode if a venting valve is connected and configured, and vacuum control is started. The venting valve opens automatically if the actual pressure is at least 7.5 Torr (10 mbar) below the preset pressure. Automatic venting becomes inactive if vacuum control is stopped (by pressing ”Esc”), a pressure value is set using the command OUT_SP_1, or if the basic mode is changed. Activate the command OUT_SP_V again if necessary.
page 74 of 102 Accessories Vacuum distribution: VCL-B 11 VCL 02 VCL-B 10 The VACUU•LAN® modules allow process-oriented, flexible and cost effective connections according to your requirements. One vacuum pump can support several workstations. Contact VACUUBRAND for details.
page 75 of 102 Attention: Dust-laden gases, deposits and condensed solvent vapor can restrict air flow out the silencer. The resultant back pressure can lead to damage of pump bearings, diaphragms, and valves. Under those conditions, a silencer must not be used. For additional accessories such as vacuum valves, small-flange components, vacuum gauges or vacuum controllers refer to www.vacuubrand.com.
page 76 of 102 Determine the bath temperature ☞ If there is no limitation from the product side, a water bath temperature of 140-158°F (60-70°C) is usually recommended (efficient heating with minimum generation of water vapor from the bath). Example: ☞ The cooling temperature is assumed to be 59-68°F (15-20°C). ☞ Water bath temperature between 140-158°F (60-70°C). Wait until temperature is reached. ☞ Determine the vacuum level for a boiling point (use published data of solvents).
page 77 of 102 Troubleshooting Fault Possible cause Remedy ❑ No display. ➨ Electrical power cord not plugged in, electrical supply failure? ✔ Plug in power cord. Check fuse. ➨ Device fuse blown? ✔ Identify cause of failure. Replace device fuse at switch output of VNC 2 or at diaphragm pump. ➨ Device switched off? ✔ Switch on controller and/ or pump. ➨ Other than above men- ✔ Contact local distributor. tioned causes? ❑ Display disappears, ➨ Too much load (e.g.
page 78 of 102 Fault Possible cause ❑ Error message ➨ In-line valve removed ”ErrValve”, three or defective? blips*. Remedy ✔ Connect or check valve or replace with a new one or reconfigure without valve. Switch VNC 2 off/on. ❑ Error message ”ErrValve”, four blips*. ➨ Coolant valve removed ✔ Connect or check valve or or defective? replace with a new one or reconfigure without valve. Switch VNC 2 off/on. ❑ Error message ”p Error”, five blips*.
page 79 of 102 Fault Possible cause Remedy ❑ Controller does not respond when pressing keys (except ON/OFF). ”P” is displayed. ➨ Controller in remote mode? ✔ Control VNC 2 controller via interface or switch off remote mode. ❑ Controller does not respond when operating any keys. No change after switching off/on. ❑ Pump does not work. ❑ Pump does not start or stops immediately. ✔ Contact local distributor. ➨ Pump too hot? ✔ Allow pump to cool down, identify and eliminate cause of failure.
page 80 of 102 Fault Possible cause ❑ Pump does not ➨ Deposits have been achieve its ultimate formed inside the vacuum or usual pump? pumping speed. ❑ Pump too noisy. Remedy ✔ Clean and inspect the pump heads. ➨ Diaphragms or valves damaged? ✔ Replace diaphragms and/ or valves. ➨ Atmospheric or high pressure at the pump inlet? ✔ Connect hose or silencer to pump outlet. Be careful not to cause outlet overpressure, especially with condensable vapors.
page 81 of 102 Replacing diaphragms and valves ☞ Please read section ”Replacing diaphragms and valves” completely before starting maintenance. The pictures may show other versions of pumps. This does not change the method of replacing diaphragms and valves. ➨ Never operate the pump if covers or other parts of the pump are disassembled. ➨ Before starting maintenance, disconnect the electrical power cord. Wait five seconds after isolating the equipment from AC power to allow the capacitors to discharge.
page 82 of 102 NOTICE Ensure that maintenance is done only by suitably trained and supervised technicians. The valves and diaphragms as well as the motor capacitors are wear parts. If the rated ultimate vacuum is no longer achieved or in case of increased noise level, the pump interior, the diaphragms and the valves must be cleaned and the diaphragms and valves must be checked for cracks or other damage. All bearings are encapsulated and are filled with long-life lubricant.
page 83 of 102 Cleaning and inspecting the pump heads The replacement of the diaphragm and the replacement of the valves can be carried out separately. + To replace the valves, remove the head covers of one side of the pump along with the assembled valve heads and fittings. ☞ To maintain the diaphragms, the valve heads and the fittings need not be disassembled. The head covers can be removed along with the assembled valve heads and fittings.
page 84 of 102 Replacing the diaphragms and valves is described for a pumping unit with a diaphragm pump MZ 2C NT (PC 500 LAN NT). Replace the diaphragms and valves of pumping units PC 600 LAN NT (with diaphragm pump MD 4C NT) in the same way. ➨ For maintenance, lay the pumping unit on its side with the pump heads to be maintained at the top. Support the pumping unit appropriately. W U O ➨ Remove the 4 screws affixing the head cover cowling (W) with a Torx driver T20.
page 85 of 102 View of the disassembled pump head parts (fig.
page 86 of 102 Fittings and tubing of the different pump models: PC 500 LAN NT, inlet side PC 500 LAN NT, outlet side PC 600 LAN NT, inlet side
page 87 of 102 PC 600 LAN NT, outlet side Replacing the diaphragm J H O F G ➨ Disassemble head covers (J) to check the diaphragm (F). ➨ Unscrew four (pump with two heads) or eight (pump with four heads) Allen screws (H) with a 5mm wide Allen key. Remove both head covers (J) (pumps with two heads: only one head cover) together with valve heads (O) and connections.
page 88 of 102 ➨ Unscrew diaphragm support disc (E) with diaphragm (F) and diaphragm clamping disc (G). ➨ Check for washers (D) between the diaphragm support disc (E) and the connecting rod (B). Do not mix the washers from the different pump heads, since these are set at the factory to ensure proper pump performance. Make sure that the original number is reassembled at the individual pump head. ☞ Too few washers: The pump will not attain vacuum specification.
page 89 of 102 Replacing the valves ➨ Open the hinged cover of the connection fastener (Q) with a slotted screwdriver. Q Loosen connection fastener slightly. ➨ Turn the fillister head screw (L) with a Torx driver T20 at most one turn. ☞ Do not detach the fillister head screw from the square nut (K). O Loosen the clamping brackets (S) on the valve heads (O). ➨ Unscrew at each clamping bracket the two countersunk screws with a Torx driver T20. Remove the clamping brackets.
page 90 of 102 EX IN M N O R ➨ Insert O-rings (M) and valves (N). See figure for the correct position of the valves: ☞ Inlet side (IN): Marked ”IN” next to the valve seat. The valve tongue points at the kidney-shaped orifice in the valve seat. ☞ Outlet side (EX): Marked with ”EX” next to the valve seat. The valve is oriented the same direction as the valve at the inlet side. ➨ Position valve heads (O), with connection tube or connection fastener (Q), and disc springs (R) on the valve seats.
page 91 of 102 ➨ Bring the diaphragms (F) into a position, in which they are in contact with the housing (C) and centered with respect to the bore. ➨ Put on head cover (J) with valve heads (O) and connections attached. + Pay attention to the correct orientation of the head covers: Housing with head alignment pin: The head alignment pin (A) at the pump housing (C) has to fit into the recess at the head cover (J). Housing with mark (A): Align the recess at the head cover with the mark at the pump housing.
page 92 of 102 ➨ Put head cover cowling on. ➨ Slide the head cover cowling in the grooves of the caps (I) and under the connection fasteners (Q). ➨ Install the washers. Use a Torx d river T20 to attach the 4 screws holding the head cover cowling. ➨ Tighten the fillister head screws (L) of the connection fasteners (Q) with a Torx driver T20. ➨ Close the hinged covers. Replace diaphragms and valves of the opposite side of the pump in the same way.
page 93 of 102 ➨ Slip the PTFE tube onto the hose connection of the vacuum connection at the controller. Loosen the union nut at the vacuum connection of the controller. ➨ Secure with union nut. Tighten the union nut firmly finger-tight. If the pump does not achieve the ultimate vacuum: - Whenever the diaphragms and valves have been replaced, a break-in period of several hours is required before the pump achieves its ultimate vacuum.
page 94 of 102 Replacing the device fuse at the diaphragm pump ➨ Switch off the pump. ➨ Disconnect the electrical power cord before opening the terminal box. After disconnecting from power, wait five seconds to allow the capacitors to discharge. + The replacing of the fuse has to be carried out by a trained electrician. + After replacing the fuse, the pump must be checked for electric safety (see below)! Identify and eliminate the cause of failure before switching on the pump again.
page 95 of 102 Cleaning and replacing components Overpressure safety relief device............................. 638821 (at exhaust waste vapor condenser) ➨ Remove catchpot at outlet. ➨ Loosen the union nut at the inlet of the exhaust vapor condenser. ➨ Remove the 4 screws affixing the counter holder of the exhaust vapor condenser with a Torx driver T10. Remove the exhaust vapor condenser. In doing so pull the PTFE hose out of the inlet of the exhaust vapor condenser.
page 96 of 102 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”, pg. 100, must be sent to our office fully completed and signed before any equipment is shipped to the authorized service center.
page 97 of 102 We submit repair quotations only on request and always at the customer’s expense. If an order is placed, the costs incurred for problem diagnosis are offset from the costs for repair or from the purchase price, if the customer prefers to buy a new product instead of repairing the defective one. - If you do not wish a repair on the basis of our quotation, the equipment may be returned to you disassembled and at your expense.
page 98 of 102 Scrapping and waste disposal: Dispose of the equipment and any components removed from it safely in accordance with all local and national safety and environmental requirements. Particular care must be taken with components and waste oil which have been contaminated with dangerous substances from your processes. Do not incinerate fluoroelastomer seals and O-rings. - You may authorize us to dispose of the equipment at your expense.
page 99 of 102 Warranty VACUUBRAND shall be liable for insuring that this product, including any agreed installation, has been free of defects at the time of the transfer of risk.
page 100 of 102 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 101 of 102 EG-Konformitätserklärung für Maschinen EC Declaration of Conformity of the Machinery Déclaration CE de conformité des machines Hersteller / Manufacturer / Fabricant: VACUUBRAND GMBH + CO KG · Alfred-Zippe-Str. 4 · 97877 Wertheim · Germany Hiermit erklärt der Hersteller, dass die Maschine konform ist mit den Bestimmungen der Richtlinie 2006/42/EG. Hereby the manufacturer declares that the machinery is in conformity with the directive 2006/42/ EC.
page 102 of 102 Disclaimer: Our technical literature is only intended to inform our customer. The applicability of general empirical values and results obtained under lab conditions to your specific operations depends on a number of factors beyond our control. It is, therefore, strictly the users’ responsibility to very carefully check the application of these data to their specific requirements. No claims arising from the information provided in this literature will, consequently, be entertained.
