Pfeiffer Vacuum GSD 350 OMNISTAR Operating Instructions Manual
Gas analysis system
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Summary of Contents for Pfeiffer Vacuum GSD 350 OMNISTAR
- Page 1 OPERATING INSTRUCTIONS Translation of the Original GSD 350 OMNISTAR ∣ THERMOSTAR Gas analysis system...
- Page 2 Dear Customer, Thank you for choosing a Pfeiffer Vacuum product. Your new gas analysis system is designed to support you in your individual application with full performance and without malfunctions. The name Pfeiffer Vacuum stands for high-quality vacuum technology, a comprehensive and complete range of top-quality products and first-class service.
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Page 3: Table Of Contents
Limits of use of the product Proper use Foreseeable misuse Personnel qualification 2.7.1 Ensuring personnel qualification 2.7.2 Personnel qualification for maintenance and repair 2.7.3 Advanced training with Pfeiffer Vacuum Product description Functional description 3.1.1 OmniStar 3.1.2 ThermoStar 3.1.3 Corrosive gas version Controls and indicators 3.2.1 Version with display... - Page 4 Table of contents Connecting the sealing gas line 5.4.1 Trimming the sealing gas hose 5.4.2 Connecting the sealing gas line Connecting the capillary 5.5.1 Connecting the OmniStar stainless steel capillary 5.5.2 Connecting the ThermoStar quartz capillary Adapting the position of the capillary hose Establishing a network connection 5.7.1 IP addresses 5.7.2 Sub-networks...
- Page 5 Table of contents 10.2.3Removing/attaching the housing cover 10.2.4Cleaning housing parts 10.2.5Cleaning the protection screens on the fans 10.3 Maintaining the high vacuum system 10.3.1Replace operating fluid reservoir on turbopump 10.3.2Replacing the venting valve 10.4 Maintaining the fore-vacuum system 10.4.1Replacing the diaphragm pump 10.4.2Replace diaphragm pump diaphragm 10.5 Maintaining the gas analysis unit 10.5.1Maintaining the QMA 250 M analyzer...
- Page 6 Table of contents Shipping Recycling and disposal 13.1 General disposal information 13.2 Dispose of a gas analysis system Service solutions by Pfeiffer Vacuum Spare parts Special tool Accessories 17.1 Accessory information 17.2 Ordering accessories Technical data and dimensions 18.1 General 18.2 Technical data...
- Page 7 List of tables List of tables Tbl. 1: Applicable documents Tbl. 2: Variants Tbl. 3: Features of variants Tbl. 4: Abbreviations used Tbl. 5: Permissible ambient conditions Tbl. 6: Symbols and colors of the status and components icons Tbl. 7: Status LEDs and their meanings Tbl.
- Page 8 List of figures List of figures Fig. 1: Position of the stickers on the product Fig. 2: Vacuum diagram of the OmniStar Fig. 3: Vacuum diagram of ThermoStar Fig. 4: Additionally sealing gas supply in corrosive gas version Fig. 5: Display with operator keys Fig.
- Page 9 List of figures Fig. 57: Part of internal gas guide Fig. 58: Removing the gas inlet flange Fig. 59: Length of stainless steel capillary with clamping collar fitting Fig. 60: Notch and snap off the stainless steel capillary Fig. 61: Clamp collar fitting for stainless steel capillary Fig.
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Page 10: About This Manual
1.1.1 Applicable documents Designation Document "GSD 350 OmniStar/ThermoStar" operating instructions DA 0106 Operation via web interface and PV MassSpec "Quadrupole mass spectrometer" operating instructions BG 6001 QMG 250 PrismaPro "Quadrupole mass spectrometer"... -
Page 11: Variants
Features of variants You can find the part number on the rating plate of the product. Pfeiffer Vacuum reserves the right to make technical changes without prior notification. The figures in this document are not to scale. Dimensions are in mm unless stated otherwise. -
Page 12: Conventions
About this manual The work described in this document is only permitted to be performed by persons with the appropriate technical qualifications (expert personnel) or who have received the relevant training from Pfeiffer Vac- uum. 1.3 Conventions 1.3.1 Instructions in the text Usage instructions in the document follow a general structure that is complete in itself. -
Page 13: Abbreviations
Standard for plug-and-socket connections in vacuum technology Ir-Y Yttrium oxide (Y ) coated iridium (Ir) Nitrile butadiene rubber Mean sea level Polyamide Polyethylene Proportional-integral derivative Pfeiffer Vacuum Polyvinyl chloride (PVC) PFTBA Colorless liquid for mass calibration (perfluortributylamine) Power over Ethernet 13/110... -
Page 14: Trademark Proof
1.4 Trademark proof ● Windows ® and Internet Explorer ® are trademarks of Microsoft Corporation. ● OmniStar ® , ThermoStar ® and PrismaPro ® are trademarks of Pfeiffer Vacuum GmbH. ● Swagelok ® is a registered trade name of Swagelok Company. 14/110... -
Page 15: Safety
Safety instructions according to product’s life stages All safety instructions in this document are based on the results of a risk assessment. Pfeiffer Vacuum has taken into account all the relevant life stages of the product. Risks during transport WARNING Danger of serious injury due to falling objects Due to falling objects there is a risk of injuries to limbs through to broken bones. - Page 16 ► Only operate the device in a dry environment. ► Operate the device away from fluids and humidity sources. ► Do not switch on the device if fluid has penetrated into it, instead contact Pfeiffer Vacuum Serv- ice. ► Always disconnect the current supply before cleaning the device.
- Page 17 Safety WARNING Danger of poisoning due to toxic process media escaping from the exhaust pipe During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape freely into the air. There is a risk of injury and fatality due to poisoning in processes with toxic process media.
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Page 18: Safety Precautions
Safety WARNING Health hazard through poisoning from toxic contaminated components or devices Toxic process media result in contamination of devices or parts of them. During maintenance work, there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub- stances causes environmental damage. -
Page 19: Limits Of Use Of The Product
► Comply with the application limits. ► Observe the technical data. ► Contact Pfeiffer Vacuum for advice on corrosive or flammable gases. 2.6 Foreseeable misuse Improper use of the product invalidates all warranty and liability claims. Any use that is counter to the purpose of the product, whether intentional or unintentional, is regarded as misuse, in particular: ●... -
Page 20: Personnel Qualification
─ Customer with Pfeiffer Vacuum service training ─ Pfeiffer Vacuum service technician 2.7.3 Advanced training with Pfeiffer Vacuum For optimal and trouble-free use of this product, Pfeiffer Vacuum offers a comprehensive range of courses and technical trainings. For more information, please contact Pfeiffer Vacuum technical training. -
Page 21: Product Description
Product description 3 Product description 3.1 Functional description The GSD 350 can analyze multiple gas components simultaneously. The gas to be analyzed passes through a pressure reduction stage to the PrismaPro, which operates in a vacuum. The PrismaPro ion- izes a portion of the gas and separates and detects the different gas components based on their differ- ent mass/charge ratio. -
Page 22: Thermostar
Product description 3.1.2 ThermoStar Fig. 3: Vacuum diagram of ThermoStar 1 Analyzer QMA 250 M Turbopump 2 Ion source Diaphragm Pump 3 Vacuum chamber heating Exhaust gas connection 4 Gas inlet heating Venting valve 5 Quartz capillary with heating Electronic unit QME 250 6 Shut-off valve EVI 005 M on calibration unit Total pressure gauge 7 Calibration unit (optional) -
Page 23: Version Without Display
Product description Warning messages or fault messages In the event of a warning message or fault message, a warning triangle is displayed at the top right on the screen, and the "Messages" key is activated. The warning triangle appears on all menu screens. A description of the error is displayed when the warning triangle is pressed. -
Page 24: Layout Of The Unit
Product description Function Description Filament The LED is lit when there is a flow at the filament. Purge The LED is lit if the sealing gas is connected; it flashes if sealing gas monitor- ing is overridden (for service work only). Tbl. -
Page 25: Connection Panel
Product description Fig. 7: Ventilation openings on the sides of the unit 1 Inlet with fan Outlet with fan 3.3.2 Connection panel The connection panel contains all of the unit's interfaces and connections. D-35614 Asslar Mod. GSD 350 PT Q80 ... Input Made in Germany 2020/02 Fig. -
Page 26: Fig. 9: Gas Inlet Systems
Product description Fig. 9: Gas inlet systems 1 Gas inlet ThermoStar Connection flange 2 Vacuum chamber Gas inlet OmniStar 3 Turbopump Gas inlet valve 4 Interstage pumping of the turbopump Pump valve Gas inlet system (OmniStar) When the gas inlet is open, 1 to 2 sccm of the gas to be analyzed streams through the stainless steel capillary to the valve unit. -
Page 27: Calibration Unit
PFTBA has the disadvantage that it can be traced in the unit's background signal for a very long time after shutting off the calibration valve. If this interferes with the intended gas anal- ysis, Pfeiffer Vacuum recommends baking out the vacuum chamber after calibration with PFTBA. -
Page 28: Sealing Gas System
Product description 3.3.7 Sealing gas system Concentrations of the admitted gases To calculate the toxicity of the sealing gas, it can be assumed that the sealing gas dilutes the concentrations of the inlet gases by a factor > 100. Fig. 12: Sealing gas system 1 Digital pressure switch with pressure gauge Venting valve... -
Page 29: Heating And Insulation
Product description Fig. 13: Gas analysis unit components 1 Total pressure gauge Turbopump 2 electronic unit QME 250 Interstage pumping of the turbopump 3 Heating cartridge in the vacuum chamber Ion source for analyzer QMA 250 M 4 Sealing gas valve of corrosive gas version Vacuum chamber 5 Venting valve 3.3.9 Heating and insulation... -
Page 30: Fig. 14: Vacuum Chamber Heating And Insulation
Product description Vacuum chamber heating (baking out) Fig. 14: Vacuum chamber heating and insulation 1 Insulation (angle) 3 + 4 Vacuum chamber heating cartridges 2 Insulation of the vacuum chamber Baking out reduces the condensed gases which adhere to the surface of the vacuum chamber. This leads to a lower total pressure in the vacuum chamber, and to a lower background signal during meas- urements. -
Page 31: 10Electronic Components
Product description Characteristics of the gas inlet heating ● The gas inlet has a heating pad and silicone foam housing insulation. ● The gas inlet heating is always switched on and off parallel to the capillary heating. ● The GSD 350 automatically adapts the temperature of the heating pad. You cannot adjust the heating pad temperature. -
Page 32: Identifying The Product
3. Always have all rating plate specifications to hand. 3.5 Scope of delivery The scope of delivery includes the following parts: ● GSD 350 OmniStar/ThermoStar ● installation hardware and small parts ─ Allen key, WAF 2, WAF 2.5 and WAF 3 ─... - Page 33 Product description 4. Check that the shipment is complete. 5. Ensure that no parts are damaged. 33/110...
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Page 34: Transport And Storage
Transport and storage 4 Transport and storage WARNING Danger of injury due to lifting heavy loads The product is heavy; it weighs up to 26 kg depending on the version. If one person lifts the product incorrectly without help, this will lead to injuries. ►... - Page 35 Transport and storage ► Maintain the permissible storage temperature. ► Avoid extreme fluctuations of the ambient temperature. ► Avoid high air humidity. ► Seal connections with the original protective caps. ► Protect the product with the original transport protection (where available). 35/110...
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Page 36: Installation
Installation 5 Installation 5.1 Ensuring venting of the unit NOTICE Damage caused by overheating The ambient temperature must not exceed the permissible operating temperature of the device. ► Make sure there is unobstructed circulation of air when installing the device. ► Periodically check and clean the installed air filter, if necessary. Procedure 1. -
Page 37: Connecting Exhaust Gas Hose
Installation Procedure 1. You must take the utmost care when cutting the exhaust gas hose. – The exhaust gas hose should not be deformed or have any scratches or gouges. 2. Cut the exhaust gas hose cleanly without any burring: ●... -
Page 38: Connecting The Sealing Gas Line
Installation Procedure 1. You must take the utmost care when cutting the sealing gas hose. – The sealing gas hose should not be deformed or have any scratches or gouges. 2. Cut the sealing gas hose cleanly without any burring: ●... -
Page 39: Connecting The Omnistar Stainless Steel Capillary
1. Remove the adhesive tape from the stainless steel capillary. 2. Attach the stainless steel capillary at the measurement point. 3. Use the stainless capillary tube adapter cable from the Pfeiffer Vacuum accessories range. 4. Fix the capillary tube in place. -
Page 40: Adapting The Position Of The Capillary Hose
To optimize the orientation of the capillary tube for specific applications, the capillary tube can be placed in 3 different positions. Pfeiffer Vacuum always delivers the GSD 350 with the capillary hose on the right-hand side. Dummy caps are installed as seals on the two positions that are not used. -
Page 41: Ip Addresses
NOTICE IP address conflicts when connecting several units Pfeiffer Vacuum supplies each GSD 350 with the same default IP address. If you want to connect several GSD 350 units, their IP addresses are initially not unique. Simultaneous connection of multi- ple GSD 350 units with identical standard IP address leads to IP address conflicts in the network. -
Page 42: Sub-Networks
Installation 5.7.2 Sub-networks Standard subnet mask for GSD 350 ● Subnet mask: 255.255.255.0 A sub-network is a logical visual sub-division of an IP network. Dividing an IP network into several sub- networks is known as sub-netting. Sub-netting sets the region of the IP address that is used as a net- work prefix for all IP addresses within a sub-network. -
Page 43: Connecting The Functional Earth
Installation 11. Enter the IP address, subnet prefix length and the settings for the IP address. – Do not change the Gateway. – GSD 350 with default IP address: Use 192.168.1.xxx as the IP address:, and 255.255.255.0 as the subnet prefix length. –... -
Page 44: Establishing Mains Connection
Installation 5.9 Establishing mains connection DANGER Danger to life from electric shock Inadequate or incorrect grounding of the unit leads to contact-sensitive voltage on the housing. When making contact, increased leakage currents will cause a life-threatening electric shock. ► Before the installation, check that the connection leads are voltage-free. ►... -
Page 45: Interfaces And Connections
External disruptive influences due to electromagnetic emissions cause malfunctions in the unit and lead to property damage. Pfeiffer Vacuum urgently recommends wiring the analog inputs (+) and (-) with twisted pair cables. ► A screened cable should be used due to the electromagnetic compatibility (EMC). -
Page 46: Aux Io" Connection
External disruptive influences due to electromagnetic emissions cause malfunctions in the unit and lead to property damage. Pfeiffer Vacuum urgently recommends wiring the analog inputs (+) and (-) with twisted pair cables. ► A screened cable should be used due to the electromagnetic compatibility (EMC). -
Page 47: Ethernet" (Lan) Connection
Interfaces and connections Digital inputs The digital inputs are highly active. The PV MassSpec software allows you to set the actions activated by digital inputs to low active. A pull-up resistor configures these inputs internally to +24 V. The inputs can be set to low via a contact or a transistor to ground. -
Page 48: Fig. 31: "Ethernet" (Lan) Connection
Interfaces and connections RJ-45 green yellow Fig. 31: "Ethernet" (LAN) connection 1 Transmission data (TD+) Reception data (RD-) 2 Transmission data (TD-) 4, 5, 7, 8 Not used 3 Reception data (RD+) Status Meaning Green (link) lights up Hardware connection exists dark No hardware connection Yellow (activity) -
Page 49: Commissioning
Commissioning 7 Commissioning NOTICE Severe vibration will damage the turbopump Severe vibration and vibrations during operation and after switching off will damage the turbopump. ► Avoid knocks and vibration during operation, for example, as caused by driving over cables and door sills. ►... -
Page 50: Fig. 33: "Control" Screen
Commissioning Fig. 33: "Control" screen Pumping down the vacuum system 1. Switch to the “Control” screen. 2. Press the "Pump down" button (see chapter “Pumping down the vacuum system”, page 61). The unit is ready for measuring. 50/110... -
Page 51: Operation Via The Display
Operation via the display 8 Operation via the display Operating instructions for the web interface and PV MassSpec Information on operating the GSD 350 via the web interface and PV MassSpec is available in the separate operating instructions as document number DA 0106. The GSD 350 can be operated via the display or alternatively via the web interface. -
Page 52: Menu Structure With Functions
Operation via the display 8.1.1 Menu structure with functions Menu Subprograms, functions and information 1. Level 2. Level Info Vacuum pumps Diaphragm Pump (see page 53) Turbopump Sensors Mass spectrometer Total pressure gauge Sealing gas sensor Valves Inlet valve (V1) Inlet valve (V2) Calibration valve Heating units Capillary heating... -
Page 53: Info" Menu
Improper changes in the Service menu impair unit functions and cause damage to the unit and its components. The Service menu is reserved for use by Pfeiffer Vacuum Service and is only accessible after logging ► Contact Pfeiffer Vacuum Service. -
Page 54: Creating And Editing Measurement Recipes
Operation via the display ● "GSD" submenu ─ Making the system settings on the unit (units, date and time) ● "Factory settings" submenu ─ Resetting the parameters to the factory settings ● "Service" submenu ─ Service functions Fig. 35: Example of parameter setting 1 Switch symbol (on) Editable numeric value Using a switch to change over parameters... -
Page 55: Fig. 37: Measurement Recipe For "Spectrum Scan" Measuring Mode
Operation via the display The following measurement recipes are preset: ● Measurement recipe for a scan (default SCAN AIR) ● Measurement recipe for measuring various masses over time (default Selected Masses Air) Fig. 37: Measurement recipe for "Spectrum Scan" measuring mode Editing the measurement recipe for "Spectrum Scan"... -
Page 56: Adjusting The Heating Units
Operation via the display Fig. 38: Measurement recipe for " Selected Masses" measuring mode Editing the measurement recipe for " Selected Masses" measuring mode 1. Press the "New recipe" button. 2. Enter a name for the measurement recipe. 3. Select "Selected Masses" measuring mode. 4. -
Page 57: Adjusting The Sensors
Operation via the display Fig. 39: Tempering mode of the vacuum chamber In normal cases, the GSD 350 does not heat the vacuum chamber during a measurement. For certain analytical measurements, you can activate the "Tempering mode" function in the "Vacuum chamber" submenu. -
Page 58: Setting The Language
Operation via the display 8.3.4 Setting the language Fig. 40: "Language" submenu The following languages are available in the "Language" submenu: ● English (standard) ● German 8.3.5 Setting autostart functions Fig. 41: "Autostart" submenu In the "Autostart" submenu, you can define which functions of the GSD 350 start automatically after switching on. -
Page 59: Setting The Network Parameters
Operation via the display 8.3.6 Setting the network parameters Fig. 42: "Network" submenu You can set the network parameters for the GSD 350 in the "Network" submenu. The GSD 350 must be restarted in order to activate the new network parameter. Network parameters ●... -
Page 60: Resetting The Unit To The Factory Settings
Improper changes in the Service menu impair unit functions and cause damage to the unit and its components. The Service menu is reserved for use by Pfeiffer Vacuum Service and is only accessible after logging ► Contact Pfeiffer Vacuum Service. -
Page 61: Pumping Down The Vacuum System
Operation via the display ● Open/shut off gas inlet (OmniStar) ● Switch emission (filament) on/off ● Switch electron multiplier on/off Explanations of the vacuum diagram are available here: (see chapter “Functional description”, page 21) Fig. 45: "Control" menu 1 Pressure in the vacuum chamber (total pressure Status of PrismaPro filament and elec- gauge) tron multiplier... -
Page 62: Switching The Heating Units On And Off
Operation via the display ● Once the emission is switched off, an internal timer starts. The timer allows the filament to cool down before venting the vacuum chamber. The timer time is 15 minutes; this is the duration after switching off the emission. If the emission was still switched on when starting "Venting", the timer starts at 15 minutes. -
Page 63: Switching Emission On And Off
Operation via the display Baking out the vacuum chamber 1. Switch to the “Control” menu. 2. Press the "Bake out on" button. Bake out sequence ● The GSD 350 transitions from "Bake out off" state to " Bake out on" state. ─... -
Page 64: Opening And Closing The Calibration Valve
Operation via the display Sequence for switching on ● The GSD 350 switches the electron multiplier on. Switch off the electron multiplier 1. Switch to the “Control” menu. 2. Press the "EM off" button. Switch off sequence ● The GSD 350 switches the electron multiplier off. 8.5.8 Opening and closing the calibration valve The calibration valve only exists on variants of the GSD 350 with a calibration unit. -
Page 65: Decommissioning
Decommissioning 9 Decommissioning NOTICE Severe vibration will damage the turbopump Severe vibration and vibrations during operation and after switching off will damage the turbopump. ► Avoid knocks and vibration during operation, for example, as caused by driving over cables and door sills. ►... -
Page 66: Maintenance
You can carry out maintenance work at maintenance level 1 yourself. We recommend Pfeiffer Vacuum Service for carrying out maintenance work at maintenance level 2 and maintenance level 3 (overhaul). If the required intervals listed below are exceeded, or if mainte- nance work is carried out improperly, no warranty or liability claims are accepted on the part of Pfeiffer Vacuum. - Page 67 Maintenance Group of components, mod- Interval Mainte- Spare part/spare part Description nance lev- and action Cleaning the protection Monthly (see page 71) screens on the fan High vacuum side system Replace copper gasket on DN Always when the 490DFL040-S-S5 40 CF flange connection CF flange connec- tion is opened Replace operating fluid reser-...
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Page 68: Maintaining The Basic Unit
Maintenance Group of components, mod- Interval Mainte- Spare part/spare part Description nance lev- and action Replace quartz capillaries If plugged B1975082EC (see page 87) PT 167 015 -T Electronic components Replace display in case of a defect PT 167 025 (see page 89) Calibration unit (option) Refill calibration medium... -
Page 69: 2Removing/Attaching The Side Covers
Maintenance Prerequisites ● GSD 350 switched off ● Power cable disconnected Required tool ● Allen key, WAF 2 Removing the gas inlet cover 1. Loosen the interior hexagon socket screws on the gas inlet cover from the chassis. 2. Carefully remove the gas inlet cover to the front. –... -
Page 70: 3Removing/Attaching The Housing Cover
► Only operate the device in a dry environment. ► Operate the device away from fluids and humidity sources. ► Do not switch on the device if fluid has penetrated into it, instead contact Pfeiffer Vacuum Serv- ice. ► Always disconnect the current supply before cleaning the device. -
Page 71: 5Cleaning The Protection Screens On The Fans
► Operate the device away from fluids and humidity sources. ► Take special precautions if there is a risk of dripping water. ► Do not switch on the device if fluid has penetrated into it, instead contact the Pfeiffer Vacuum Service Center. -
Page 72: Maintaining The High Vacuum System
3. Replace the operating fluid reservoir and the Poroplast rods in line with the turbopump operating instructions. 4. Close the turbopump housing cover using the wrench for the housing cover. 5. Carefully erect the GSD 350 again. 10.3.2 Replacing the venting valve Pfeiffer Vacuum Service handles the replacement. ► Contact Pfeiffer Vacuum Service. 72/110... -
Page 73: Maintaining The Fore-Vacuum System
Maintenance 10.4 Maintaining the fore-vacuum system 10.4.1 Replacing the diaphragm pump Prerequisites ● GSD 350 switched off ● Power cable disconnected ● Turbopump at standstill ● Side covers removed ● Housing cover removed Required tools ● Open-end wrench, WAF 7 ● Allen key, WAF 3 ●... -
Page 74: 2Replace Diaphragm Pump Diaphragm
Maintenance Removing the diaphragm pump 1. Set the RS485 address of the new diaphragm pump to a value of "10" with the aid of a current DCU 110/180/310 and the appropriate connection cable. 2. Press the release ring on the exhaust gas connection of the diaphragm pump firmly down on both sides in order to open the holding claws uniformly and avoid scratches on the exhaust gas hose. -
Page 75: Maintaining The Gas Analysis Unit
Maintenance 10.5 Maintaining the gas analysis unit 10.5.1 Maintaining the QMA 250 M analyzer NOTICE Impairment from contamination and damage Touching the devices or components with bare hands increases the desorption rate and leads to in- correct measurements. Dirt (e.g. dust, fingerprints, etc.) and damage impair the function. ►... -
Page 76: Tbl. 13: Determined Sensitivity Of The Prismapro
If you notice a loss of measuring sensitivity, the cause may be decreasing gain of the built-in electron multiplier (EM) or contamination of the ion source. In such a case, Pfeiffer Vacuum recommends deter- mining the sensitivity of the PrismaPro with the electron multiplier switched off, i.e. only with the Fara- day detector. -
Page 77: 2Maintaining The Total Pressure Gauge
Maintenance 8. Position the electronics unit on the analyzer. – The groove in the analyzer must engage in the lug on the electronics unit. 9. Tighten the black clamp collar on the electronics unit. 10. Connect all connection cables on the front panel of the QME 250 electronic unit. 10.5.2 Maintaining the total pressure gauge The GSD 350's MPT 200 AR total pressure gauge is a combined measurement tube consisting of a Pi- rani sensor and a cold cathode sensor. -
Page 78: Maintaining The Gas Inlet System Of The Omnistar
► Carry out all work in a well lit area. First shorten or replace the stainless steel capillary Pfeiffer Vacuum recommends first shortening or replacing the stainless steel capillary, and only then replacing the orifice if the work on the stainless steel capillary does not achieve the desired results. -
Page 79: 2Replacing The Orifice
Maintenance Prerequisites ● GSD 350 switched off ● Power cable disconnected ● Turbopump at standstill ● Gas inlet cover removed Required tools ● Allen key, WAF 2.5 ● Open-end wrench, WAF 5/16" ● Open-end wrench, WAF 9/16" Fig. 56: Disassemble the valve block 1 Valve block Fixing screw 2 Temperature sensor... -
Page 80: 3Replacing The Interior Gas Guide And Orifice
Maintenance Procedure 1. Unscrew and remove the gas guide from the valve block. 2. Turn the gas inlet so that the orifice drops out. 3. Drill the orifice manually using the special tool and pull the orifice out from the valve block if the orifice remains stuck. -
Page 81: Maintaining The Gas Inlet System Of The Thermostar
► Carry out all work in a well lit area. First shorten or replace the quartz capillary Pfeiffer Vacuum recommends first shortening or replacing the quartz capillary, and only then replacing the orifice if the work on the quartz capillary does not achieve the desired results. -
Page 82: 1Removing The Gas Inlet Flange
Maintenance 10.7.1 Removing the gas inlet flange NOTICE Destruction of the turbopump due to incomplete internal gas guide If the ceramic sleeve, the pressure spring or one of the two O-rings of the inner gas guide are miss- ing, putting the GSD 350 into operation will destroy the turbopump. ►... -
Page 83: 2Replacing The Orifice
Maintenance 10.7.2 Replacing the orifice Prerequisites ● GSD 350 switched off ● Power cable disconnected ● Turbopump at standstill ● Gas inlet removed Required tool ● Special tool for the orifice of the gas inlet system Spare part required ● Orifice, 50 μm (part number BK212576) Procedure 1. -
Page 84: Servicing The Capillary
10.8 Servicing the capillary Shortening or replacing the capillary Pfeiffer Vacuum recommends first shortening or replacing the capillary, and only replacing the orifice if the work on the capillary does not achieve the desired results. If the expected total pressure is not achieved in the GSD 350, and instead the total pressure remains at <... -
Page 85: 2Replacing The Stainless Steel Capillary
Maintenance Fig. 60: Notch and snap off the stainless steel capillary Trimming the stainless capillary with the pipe or capillary cutters 1. Pull the stainless capillary far enough out of the capillary hose. 2. Cut off the stainless capillary with the pipe or capillary cutters. Trimming the stainless steel capillary with a file 1. -
Page 86: 3Trimming The Quartz Capillary
Maintenance Fig. 61: Clamp collar fitting for stainless steel capillary 1 Adapter Rear clamp collar 2 Nut Stainless steel capillary 3 Front clamp collar Procedure 1. Trim the length of the stainless steel capillary (see chapter “Shorten stainless steel capilla- ries”, page 84). -
Page 87: 4Replacing The Quartz Capillary
Maintenance ● Turbopump at standstill ● Quartz capillary disconnected from measurement point ● Length of quartz capillary still sufficient after shortening Required tools ● Capillary cutting tool Fig. 62: Notching and snapping off the quartz capillary Trimming the quartz capillary 1. -
Page 88: Maintaining The Heating Units
► Display warning signs. ► Make sure that the product has cooled down before performing work. ► Wear protective gloves (in accordance with EN 420). 10.9.1 Replacing the capillary hose Pfeiffer Vacuum Service handles the replacement. ► Contact Pfeiffer Vacuum Service. -
Page 89: 3Servicing The Vacuum Chamber Heating
If the temperature of the vacuum chamber does not reach the set temperature when baking out, even after a substantial waiting period, or if the GSD 350 indicates a defect in the vacuum chamber heating, the heating and/or the corresponding temperature sensor must be replaced. Pfeiffer Vacuum Service handles the replacement. ► Contact Pfeiffer Vacuum Service. -
Page 90: Replacing The Mainboard
Maintenance 10.10.3 Replacing the mainboard Pfeiffer Vacuum Service handles the replacement. ► Contact Pfeiffer Vacuum Service. 10.10.4 Replacing the power supply pack Pfeiffer Vacuum Service handles the replacement. ► Contact Pfeiffer Vacuum Service. 10.10.5 Replacing the QME 250 electronic unit Pfeiffer Vacuum Service handles the replacement. -
Page 91: Replacing The Calibration Valve
4. Mount the glass storage vessel on the shut-off valve. – Pay attention to the washer and the orifice. 5. Tighten the fitting over the glass storage vessel by hand. 10.11.2 Replacing the calibration valve Pfeiffer Vacuum Service handles the replacement. ► Contact Pfeiffer Vacuum Service. -
Page 92: Replacing The Manual Pressure Regulator
10. Connect the sealing gas supply to the sealing gas valve. 10.12.2 Replacing the manual pressure regulator Pressure regulator preset Do not change the presetting. Pfeiffer Vacuum has factory preset the pressure regulator. Pfeiffer Vacuum Service handles the replacement. ► Contact Pfeiffer Vacuum Service. -
Page 93: Troubleshooting
Troubleshooting 11 Troubleshooting Notes on malfunction handling in the Help menus Further information on troubleshooting and malfunction messages when operating the unit via the web interface or when using the PV MassSpec software can be found in the corre- sponding Help menus. Problem Possible cause Remedy... - Page 94 Troubleshooting Problem Possible cause Remedy Diaphragm pump switches off. Overtemperature 1. Check the fans. 2. Service the diaphragm pump. Cable connection Check the plug-and-socket loose connections on the diaphragm pump and the mainboard. Diaphragm pump Service the diaphragm pump or defective replace the diaphragm pump.
- Page 95 Troubleshooting Problem Possible cause Remedy Pressure in vacuum chamber is too high Inlet pressure too Reduce the pressure. on the high inlet side of the capillary to (> 3 × 10 hPa) (for ThermoStar and/or Om- < 1200 hPa. niStar with open gas inlet valve). Leakage Check the capillary seal in the gas inlet area.
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Page 96: Tbl. 14: Troubleshooting
Troubleshooting Problem Possible cause Remedy High noise level PrismaPro settings See PrismaPro operating in- incorrect structions. After the "Vent" control commands, the vac- Delay time for vent- Wait for the delay time of uum pumps continue running and the sys- ing not yet complet- <... -
Page 97: Shipping
► Comply with the instructions for safe distribution. Decontamination subject to charge Pfeiffer Vacuum decontaminates products not clearly declared "Free of contamination" at your expense. Instructions for safe shipping ► Do not ship microbiological, explosive or radioactively contaminated products. -
Page 98: Recycling And Disposal
– Fluoroelastomers (FKM) – Potentially contaminated components that come into contact with media 13.2 Dispose of a gas analysis system Pfeiffer Vacuum gas analysis systems contain materials that you must recycle. 1. Dismantle the housing parts. 2. Dismantle all individual components. -
Page 99: Service Solutions By Pfeiffer Vacuum
We are always focused on perfecting our core competence – servicing of vacuum components. Once you have purchased a product from Pfeiffer Vacuum, our service is far from over. This is often exactly where service begins. Obviously, in proven Pfeiffer Vacuum quality. - Page 100 Service solutions by Pfeiffer Vacuum 5. Prepare the product for transport in accordance with the provisions in the contamination declaration. a) Neutralize the product with nitrogen or dry air. b) Seal all openings with blind flanges, so that they are airtight.
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Page 101: Spare Parts
Spare parts 15 Spare parts Ordering spare parts ► Have the part number to hand, along with other details from the rating plate as required. ► Install original spare parts only. Designation Order number Description/scope of delivery Gas inlet (OmniStar) PT 167 016 -T Flange insert with valves, orifice 50 µm, 2 o-rings and gas guide, without stainless steel capillary... -
Page 102: Special Tool
Special tool 16 Special tool Designation Order number Wrench for housing cover PV M40 813 (see chapter “Replace operating fluid reservoir on tur- bopump”, page 72) Tbl. 16: Special tool Fig. 67: Wrench PV M40 813 for housing cover of turbopump 102/110... -
Page 103: Accessories
Accessories 17 Accessories View the range of accessories for ThermoStar and OmniStar on our website. 17.1 Accessory information Capillary hose adapter The capillary hose adapter is used to reliably connect the capillary hose. Fig. 68: Capillary hose adapter 17.2 Ordering accessories Description Order number Capillary hose adapter PT 167 070 -T Tbl. -
Page 104: Technical Data And Dimensions
Technical data and dimensions 18 Technical data and dimensions 18.1 General mbar Torr | mm Hg mbar 1 · 10 0.75 1000 1000 1 · 10 0.01 0.01 1 · 10 1 · 10 7.5 · 10 0.75 1 · 10 0.01 1000 Torr | mm Hg 1.33... - Page 105 Technical data and dimensions Configuration (mass range) 1 to 100 u 1 to 200 u 1 to 300 u Diameter OmniStar: OD = 1/16", ID = 0.15 mm ThermoStar: OD 0.23 mm, ID = 0.15 mm Operating temperature of capillary 200 °C (350 °C also available) Exhaust gas Permissible pressure...
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Page 106: Dimensions
Technical data and dimensions Configuration (mass range) 1 to 100 u 1 to 200 u 1 to 300 u Operational readiness After 10 minutes Time between switching off and restart > 10 seconds Switch-off time 15 minutes User control Analog inputs 5×... -
Page 107: Certification
The product GSD 350 OmniStar/ThermoStar - conforms to the UL standards UL 61010-1:2012 R4.16 Safety requirements for electrical equipment for measurement, control and laboratory use Part 1: General requirements UL 61010-2-010:2014 Safety requirements for electrical equipment for measurement, control and laboratory use... -
Page 108: Declaration Of Conformity
Declaration of conformity Declaration for product(s) of the type: Gas analysis system GSD 350 OmniStar GSD 350 ThermoStar We hereby declare that the listed product satisfies all relevant provisions of the following European Directives. Electromagnetic compatibility 2014/30/EU Restriction of the use of certain hazardous substances 2011/65/EU... - Page 109 109/110...
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