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Extrel Max300-LG Installation Manual

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Max300-LG : Description - Specifications - Installation Guide
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-LG Specifications ............................................................................................................................... 2
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-LG Mechanical Descriptions ............................................................................................................. 5
Mass Spectrometer Hardware .............................................................................................................................. 5
Remaining Components in the Enclosure ............................................................................................................ 9
Inlet Valves ........................................................................................................................................................... 9
Inlet Heaters ....................................................................................................................................................... 10
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............................................................................................................................................... 10
Environmental Requirements ............................................................................................................................. 10
Utility Requirements .......................................................................................................................................... 10
Control Computer Specifications ....................................................................................................................... 11
Installing the Software ....................................................................................................................................... 11
.................................................................................................................................................. 12
Optional External Communications ................................................................................................................... 12
Calibration Gases .............................................................................................................................................. 14
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Turbomolecular Vacuum Pump ......................................................................................................................... 19
Quadrupole Collar Shield Disassembly ............................................................................................................. 26
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  • Page 1: Table Of Contents

    Max300-LG : Description - Specifications - Installation Guide ™ MAX300 -LG D ............................ 2 ESCRIPTION ™ MAX300 -LG Specifications ..........................2 ™ MAX300 -LG Mechanical Descriptions ......................5 Mass Spectrometer Hardware ..........................5 Remaining Components in the Enclosure ......................9 Inlet Valves ................................

  • Page 2: Max300 ™ -Lg Description

    Extrel CMS. If no damage is evident, the customer should prepare the instrument for start up via utility and communication connections discussed in this manual.
  • Page 3 Max300-LG : Description - Specifications - Installation Guide Quadrupole Mass Analyzer • Type Quadrupole • Rod Size 3/4 inch (19mm) • Operating Frequency 1.0MHz • Power Level 200 watt • Mass Range 2-250 amu • Scan Speed 1 to 200 amu/sec •...
  • Page 4 Max300-LG : Description - Specifications - Installation Guide Minimum PC Requirements: 2 GHz or above CPU 2 GB or above RAM 50 GB free Hard Disk space RS232 Serial Port for Valve Actuator (Or a USB 2.0 port with a USB to Serial converter) A USB 2.0 or above port (Or an Ethernet port) for...

  • Page 5: Max300 ™ -Lg Mechanical Descriptions

    Max300-LG : Description - Specifications - Installation Guide • Heat Dissipation 670 Watts (Mass Spec Only) • Electrical Supply Power: 6.1 Amps at110 VAC (Mass Spec Only) 3.0 amps at 220 VAC ™ MAX300 -LG Mechanical Descriptions Instrument Housing ™...
  • Page 6 Max300-LG : Description - Specifications - Installation Guide flanges to connect to the chamber. The RF (electrical) connection for the quadrupole is a 3-3/8 inch flange on the top of the chamber. A port for the vacuum gauge is on the chamber side, in line with the turbo pump.
  • Page 7 Max300-LG : Description - Specifications - Installation Guide control computer software. The ionization type vacuum gauge requires no regular maintenance. It has a spare filament built in that is selectable with a switch labeled Filament Select. When both filaments have burned out the gauge must be replaced.
  • Page 8 Max300-LG : Description - Specifications - Installation Guide Figure 3: Ionizer ™ The ionizer assembly used in the MAX300 -LG has been designed for easy installation and servicing. Figure 4 below depicts the ionizer assembly mounted on the flange. Lens Ionizer’s...

  • Page 9: Remaining Components In The Enclosure

    Max300-LG : Description - Specifications - Installation Guide Detector Two different detector options are offered. The standard detector is the faraday plate. This component, located directly after the quadrupole, collects the signal of the ions. An optional electron multiplier detector assembly is available for increased dynamic range. It is recommended that the standard faraday detector be wiped off occasionally, especially for dirty applications.

  • Page 10: Inlet Heaters

    -LG can be configured to use 110 or 220 VAC 50/60 Hz. If the control computer is supplied by Extrel CMS, it will be capable of using 110 or 220 VAC. The power consumption of the instrument (not including the control computer) is 6.1 Amps at 110 VAC and 3.0 Amps at 220 VAC.

  • Page 11: Control Computer Specifications

    30 GB of free disk space may be considered the minimum for a functional system. Note: Extrel recommends that a control PC supplied by the user be dedicated to this purpose and not be used for other tasks. Installing the Software If a control computer has been purchased from Extrel, the software will be pre-installed and configured.

  • Page 12: Communications

    Ethernet port. Questor I/O The native Questor I/O communications protocol is built into the MAX300-LG software and hardware. This communications protocol gives direct access to the digital I/O and analog inputs on the baseboard module at J-41. The digital channels will accept TTL level signals.
  • Page 13 Max300-LG : Description - Specifications - Installation Guide systems within seconds. Physical access to this communication channel is via an external chassis that connects to the controlling PC. Varieties of Modbus communications ™ The MAX300 -LG can be equipped with a Modbus Master fieldbus I/O system capable of accepting a variety of modules that communicate with external devices.

  • Page 14: Calibration Gases

    Calibration gases must be suitable for the process stream. It is recommended that an Extrel CMS application chemist is consulted prior to start-up for help in selecting gas standards. Gas cylinders for housing calibration gases are typically 40-50 L or 1-2 ft , 9in diameter, 56in long, and filled to 2000 PSIG.

  • Page 15: Routine Maintenance

    Max300-LG : Description - Specifications - Installation Guide the type of valve option installed, but all installations must perform the same function of getting the calibration gases to the instrument without contamination. ™ A common configuration is for the MAX300 -LG to be equipped with a Valco rotary valve using 1/16”...
  • Page 16 Max300-LG : Description - Specifications - Installation Guide To perform maintenance on the pumps or components within the vacuum chamber, the system must first be cooled down and vented. With the control software, choose Control Parameters under the Configuration Tab.

  • Page 17: Changing The Roughing Pump Oil

    (~500 ml) Roughing pump oil ™ Extrel CMS recommends that the oil in the roughing pump for the MAX300 -LG be changed every six months or if the oil is darker than a light amber color. The rate of oil deterioration will vary depending on the application.
  • Page 18 Max300-LG : Description - Specifications - Installation Guide Fill Port Site Glass Drain Figure 9: Roughing Pump Using a 5mm hex key, remove the drain plug on the front of the pump to allow the oil to drain into the catch pan. Loosening the fill plug will speed oil drainage. Once the oil has drained out of the pump, re-install the drain plug and tighten it.

  • Page 19: Changing The Turbo Pump Oil Reservoir

    Max300-LG : Description - Specifications - Installation Guide Figure 10: Changing the Turbo Pump Oil Reservoir Turbomolecular Vacuum Pump Required Tools • (2) Flat Blade Screwdrivers. • (1) Turbo pump oil wick replacement • (1)Turbo pump service tool • (1) Small mirror (optional) The turbo pump oil should be changed at least every year, as recommended by Pfeiffer.
  • Page 20 Max300-LG : Description - Specifications - Installation Guide Mounted to vacuum chamber Turbo pump body Oil Wick O-ring that makes the seal Plastic plate Figure 11: Turbo Pump The lubricating oil for the pump is contained in an absorbent felt cup oil wick mounted in a plastic housing fitted into the bottom of the pump.

  • Page 21: Changing The Ionizer Assembly

    Max300-LG : Description - Specifications - Installation Guide While supporting the turbo pump to keep it from rotating too freely pull the spring pins towards the center of the chamber and lower the pump back into place. Reconnect the vacuum, sample and electrical lines to the chamber.
  • Page 22 Max300-LG : Description - Specifications - Installation Guide 10-Pin Connector Inlet Flange Figure 13: Ionizer flange with Inlet and 10-pin Connector The ionizer flange is held to the chamber with eight socket head screws (1/4 inch hex key). Remove the flange and set it on a clean work surface. Remove and discard the nonreuseable copper gasket.
  • Page 23 Max300-LG : Description - Specifications - Installation Guide Figure 14: Reinstalling Ionizer Flange Note: Never reuse a copper gasket. A scratch undetectable to the eye may be present and result in a vacuum chamber leak. Use an ohm meter to verify proper installation of the ionizer before tightening the ionizer flange bolts.

  • Page 24: Quadrupole Removal

    Max300-LG : Description - Specifications - Installation Guide Filament 2 Lens 2 Heater Thermocouple (-) Heater Lens 1 When all the electrical tests have passed, tighten the flange bolts in a cross pattern to keep the flanges parallel, prevent leaks, and keep the copper gasket from becoming warped.
  • Page 25 Max300-LG : Description - Specifications - Installation Guide connection flange assembly can then be detached from the vacuum chamber (1/4 inch hex key). Figure 16: Quad Assembly and Vacuum Chamber The quadrupole can be removed from either the ionizer end or detector end of the vacuum chamber.

  • Page 26: Quadrupole Collar Shield Disassembly

    Max300-LG : Description - Specifications - Installation Guide the quadrupole mount screw, the assembly can be pulled out of the chamber and placed in a clean area (a few Kimwipes placed on a level surface). Note: do not force the quadrupole through the chamber! If it gets stuck, gently slide the assembly side to side and up and down until it is easily removed.

  • Page 27: Quadrupole Cleaning

    Max300-LG : Description - Specifications - Installation Guide Quadrupole Cleaning Required Tools • (1) ¾ - 1” Dia. bottle brush with the wire “knot” removed from the end and the handle covered in plastic. • (~5) Cotton Swabs • Small amount of Pumice •...

  • Page 28: Quadrupole Reassembly And Vacuum Chamber Installation

    Max300-LG : Description - Specifications - Installation Guide poles, avoiding scrubbing in a longitudinal direction. It is very important to avoid scratching the quadrupoles. When the deposits have been removed, the quadrupole will require a general overall scrubbing using the pumice/alconox paste. Use a brush of 3/4 to 1 inch diameter inserted along the axis of the assembly.
  • Page 29 Max300-LG : Description - Specifications - Installation Guide Figure 20: Locating Pins of Quadrupole When this is completed, the quadrupole assembly can be inserted into the vacuum chamber. Be sure the ionizer end will face the ionizer and the detector end will face the the end nearest wires connecting opposite poles.

  • Page 30: Electron Multiplier Removal And Replacement

    Max300-LG : Description - Specifications - Installation Guide The RF connection flange assembly should then be installed onto the vacuum chamber with a new 3-3/8" copper gasket. The spring loaded contacts of the RF connection flange must make contact with the quadrupole rods, not the collar shield end plate or chamber.

  • Page 31: Electron Multiplier Removal And Replacement

    Max300-LG : Description - Specifications - Installation Guide After the system has been properly vented remove the cables on the detector flange (the multiplier HV cable, and the preamp cable). The preamp assembly is detached using the Phillips screwdriver to remove the two preamp securing screws.
  • Page 32 Max300-LG : Description - Specifications - Installation Guide The detector mounting flange can be detached from the vacuum chamber by removing the securing socket head screws using a 1/4" hex key. Discard the old copper gasket. Note: Care must be taken when removing this flange to not damage the detector assembly as the securing screws are removed.

  • Page 33: Changing The "Quickinlet

    Max300-LG : Description - Specifications - Installation Guide be used to hold the copper gasket in place. Initially tighten the bolts finger tight. Use an ohm meter to verify that each of the three detector electrical leads is isolated from each other, from ground and from the quadrupole.
  • Page 34 Max300-LG : Description - Specifications - Installation Guide Slide the nut over the long end of the replacement QuickInlet and install the metal gasket on the flange half of the fitting. Slide the short end of the inlet into the flange fitting and tighten the nut ¼...
  • Page 35 Max300-LG : Description - Specifications - Installation Guide • Each inlet to the rotary valve is equipped with a filter. If it becomes clogged, it should temporarily be removed. Do not operate continuously without a filter. Any particulates present in the sample will drastically shorten the valve’s life.

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