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Analysis Sequence

3Flex Service Manual

3-6

Aug 2013

11. Helium is evacuated from the samples and the Dewar is lowered if specified in the sample file.

12. Samples are evacuated for the amount of time specified in the sample file.

13. The Po tube is dosed and allowed to equilibrate.

14. If the pressure does not change measurably, the Psat measurement is taken. If the pressure does

change measurably, another dose may be required.

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Summary of Contents for 3Flex

Page 1: ...Service Manual 3Flex Analyzer August 2013...

Page 2: ...Viton is a registered trademark of DuPont Dow Elastomers L L C Windows is a registered trademark of Microsoft Corporation Micromeritics Instrument Corporation 2013 All rights reserved...

Page 3: ...d Po Ports 2 9 Sample and Po Transducers 2 10 Heater Fan Assembly 2 11 Vacuum Gauge 2 11 Vacuum Subsystem 2 13 Roughing Backing Pump 2 14 2 14 Gas Inlet Subsystem 2 15 Pneumatic Valves and Manifold 2...

Page 4: ...ND SOFTWARE Preinstallation Instructions and Checklist 4 1 Installation 4 1 Operator Training 4 1 Maintenance 4 1 Calibration 4 2 Mechanical and Electrical Drawings 4 2 Mechanical 4 2 Electrical 4 3 S...

Page 5: ...he manual The service manual is organized as follows Chapter 1 GENERAL INFORMATION Provides information about the contents of the service manual Chapter 2 FUNCTIONAL DESCRIPTION Provides a functional...

Page 6: ...anual 3Flex Service Manual 1 2 Aug 2013 Using This Manual This manual is most efficiently used from the Micromeritics web site However it can be down loaded to a portable media device such as a CD or...

Page 7: ...basic configuration can be upgraded for vapor and chemisorption analyses and each port can be individually upgraded for high quality micropore analyses with 10 torr and 0 1 torr transducers on each m...

Page 8: ...rtion of the instrument The gas inlet manifold is the only part of the manifold that has rubber seals The vapor source connects to the P0 port The sample ports dosing manifold and Po tube each have a...

Page 9: ...selection dialogs and navigation are more consistent with that of Windows 7 Data from the 2020 2420 and 3020 sample files can be imported to allow overlay plots and other comparisons to be generated D...

Page 10: ...rior analysis module and its subassemblies The top panel is molded from plastic and internally coated with a special conductive coating to prevent radio frequency interference Po tube Measures the sat...

Page 11: ...s Sample Tubes Constructed of borosilicate glass to withstand the temperatures reached inside the Dewar or during degassing Power indicator Illuminated when instrument is on Access panels Provides acc...

Page 12: ...pressed air the vacuum pump and the power cord Side Panels The side panels of the 3Flex contain the Ethernet connector RS232 connector and the On Off switch as well as access panels to circuit boards...

Page 13: ...r 3 ports A 10 Torr manifold transducer See also Sample and Po Transducers on page 2 10 B 0 1 Torr transducers C 10 Torr transducers D 1000 Torr manifold transducer E Po port button head transducer F...

Page 14: ...the cabinet see Vacuum Gauge on page 2 11 Pneumatically actuated hard seal valves and VCR connections are used to provide enhanced vacuum integrity There are four RTDs located in the analysis subsyste...

Page 15: ...ehind for easier access to all three ports The ports also are extended further below the upper cabinet base plate for easier operator access and better thermal isolation Each sample port has a 20 m fr...

Page 16: ...1 transducers 3 port Micropore units All Sample Ports have 1000 10 and 0 1 Torr transducers 1000 Torr button head transducers Sample Ports 1000 Torr button head transducer Po Port 0 1 Torr transducer...

Page 17: ...t in front of the dual transducer PCBs It controls and maintains the temperature to 45 C 0 05 C Vacuum Gauge The Pirani Cold Cathode dual vacuum gauge is connected to the embedded controller via RS 23...

Page 18: ...osed when dosing gas in the manifold to maintain cleanliness of the gauge Open Valve 7 only when the system is under vacuum Right click on the vacuum gauge reading to view vacuum gauge details you mus...

Page 19: ...below the upper cabinet base plate It is connected to the vacuum gauge and gas inlet manifold with 1 2 in tubing A fan provides cooling air across the turbo and vents out the back panel Right click o...

Page 20: ...Vacuum Subsystem 3Flex Service Manual 2 14 Aug 2013 Roughing Backing Pump The roughing backing pump is located outside the instrument cabinet making it easier to service...

Page 21: ...t filters frits to prevent particles from entering the valve system The servo valve is stainless steel and similar to the one used in the 2480 Direct control of the servo valve voltage is provided via...

Page 22: ...agm valves with Kel F seats and require 90 100 psi of house air to operate The pneumatic valve actuator assembly is located in the lower portion of the cabinet When the pneumatic valve actuator s rece...

Page 23: ...ree sensors detect upper bound travel home position and over travel in the downward position the upper bound position sensor location is adjustable for different travel length applications The elevato...

Page 24: ...All ports have three transducers Valves and their current states Pressure reading from the transducers Temperature readings Sample and Po ports Location and status of the elevator During operation st...

Page 25: ...customer calls you with a problem have them 1 Obtain a screen capture of the All Readings dialog 2 Select Unit 1 Diagnostics Save Files for Problem Diagnosis to display this dialog 3 Use the Add butt...

Page 26: ...g and sample manifolds All transducer and temperature readings from the upper portion of the instrument go through this board and are changed from Analog to Digital The analysis transducer interface b...

Page 27: ...lication software is loaded into this PCB This board is in the third slot from left to right Valve LED Driver P N 350 17702 011 Generates control signals for valve drivers This board also stores all P...

Page 28: ...ice Manual 2 22 Aug 2013 Power Distribution PCB P N 350 17708 011 Provides power for all system components It is located on the Power tray below the turbo pump accessed from the rear panel of the anal...

Page 29: ...ntle and temperatures This PCB is located to the left of the Power Tray and is accessed through the rear panel of the analyzer Upper Backplane PCB P n 350 17707 011 The Upper Backplane PCB serves as a...

Page 30: ......

Page 31: ...ysis The instrument schematic shown below will be used to show the state of the system components during the various phases of an analysis The state of a valve is indicated by the icon color Green ope...

Page 32: ...roceeds the thickness of the adsorbed film increases Any micropores in the surface are filled first then the free surface becomes completely covered and finally the larger pores are filled by capillar...

Page 33: ...ce a plug in any port that is not being used for analysis 3 Prepare samples to be analyzed This may include weighing the sample and degassing the sample 4 Load sample tubes in their respective ports a...

Page 34: ...3Flex Service Manual 3 4 Aug 2013 7 The system begins to evacuate the manifold at a rate and time specified in the sample file 8 All valves close then the N2 valve opens and the Po tube is filled to t...

Page 35: ...re helium evacuation begins 10 A series of manifold dosings and port equilibrations begin to take place on each port to prepare for analysis under cryogenic conditions Helium warm free space is measur...

Page 36: ...owered if specified in the sample file 12 Samples are evacuated for the amount of time specified in the sample file 13 The Po tube is dosed and allowed to equilibrate 14 If the pressure does not chang...

Page 37: ...by selecting Instrument Schematic from the View drop down list 16 After evacuation the instrument starts dosing to the set point specified in the sample file and continues until the specified number o...

Page 38: ......

Page 39: ...installed by a qualified Micromeritics service representative Installation Instructions and Checklist P N 350 42870 02 Operator Training The Operator Training Checklist is used in conjunction with the...

Page 40: ...uct Calibration Procedure P N 350 34000 76 Mechanical and Electrical Drawings These drawings show assemblies in detail Some parts listed in these prints may be available only as an assembly or in a ki...

Page 41: ...analyzer unless requested on the order Access to an electronic copy is available on the Help menu 3Flex Operator s Manual P N 350 42800 01 Print Number Description 003 17642 011 CPU PCB 350 17701 011...

Page 42: ...Software 3Flex Service Manual 4 4 Aug 2013 Software Click the link below to access a demo version of the 3Flex software 3Flex software...

Page 43: ...lve 0 030 SST 004 22601 06 Valve Diaphragm sealed 1 4 in Male 004 25040 05 Gasket 1 4 VCR SS Retainer assembly 004 25040 06 Gasket 1 2 VCR SS Retainer assembly 004 27070 00 Frit 20 m 1 4 VCR 260 25873...

Page 44: ...50 34007 00 Pneumatic Manifold assembly 004 25163 00 Valve Solenoid 4 port 004 62002 05 Valve Solenoid 24 VDC 2 way without base 350 63817 02 Heater assembly 120 VAC 350 63817 03 Heater Relay assembly...

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