TSI Instruments 3082 Operation And Service Manual
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TSI Instruments 3082 Operation And Service Manual

Scanning mobility particle sizer (smps) spectrometer
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ELECTROSTATIC CLASSIFIER
MODEL 3082
SCANNING MOBILITY PARTICLE
SIZER
(SMPS
) SPECTROMETER
™
™
MODEL 3938
OPERATION AND SERVICE MANUAL
P/N 6006760, REVISION C
JANUARY 2016

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Summary of Contents for TSI Instruments 3082

  • Page 1 ELECTROSTATIC CLASSIFIER MODEL 3082 SCANNING MOBILITY PARTICLE SIZER (SMPS ) SPECTROMETER ™ ™ MODEL 3938 OPERATION AND SERVICE MANUAL P/N 6006760, REVISION C JANUARY 2016...
  • Page 3 Product Overview Unpacking and ELECTROSTATIC Setting Up the Electrostatic CLASSIFIER Classifier MODEL 3082 Moving and Shipping the Electrostatic Classifier SCANNING MOBILITY Instrument PARTICLE SIZER (SMPS ™ ™ Description SPECTROMETER MODEL 3938 Instrument Operation Maintenance, OPERATION AND SERVICE MANUAL Service, and...
  • Page 4 M a n u a l H i s t o r y The following is a history of the Electrostatic Classifier Model 3082 and Scanning Mobility Particle Sizer™ (SMPS™) Spectrometer Model 3938 Operation and Service Manual (P/N 6006760). Revision...
  • Page 5 W a r r a n t y Part Number 6006760 / Revision C / December 2016 Copyright ©TSI Incorporated / 2014-2016 / All rights reserved. Address TSI Incorporated / 500 Cardigan Road / Shoreview, MN 55126 / USA Fax No. 651-490-3824 E-mail Address particle@tsi.com...
  • Page 6 Microsoft and Windows are registered trademarks of Microsoft Corporation. Tygon is a registered trademark of Saint-Gobain Performance Plastics Corporation. Teflon and Viton are registered trademarks of DuPont. Gilibrator is a registered trademark of Sensidyne. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 7 S a f e t y This chapter provides instructions to promote safe handling and correct operation of the Electrostatic Classifier Model 3082 and Scanning Mobility Particle Sizer™ (SMPS™) Spectrometer Model 3938. All repair and maintenance should be performed by qualified, trained technicians;...
  • Page 8 Neutralizer (contains a Krypton-85 source). The following precautions must be taken when using the Model 3077/3077A Neutralizer:  Do not remove any parts from the 3082 Classifier unless this manual instructs you to do so.  Corrosive materials can degrade materials within the classifier. Do not...
  • Page 9 W A R N I N G The Model 3077/3077A Neutralizer contains radioactive material that is subject to the regulations of the U.S. Nuclear Regulatory Commission as well as local regulations. The Model 3088 Advanced Aerosol Neutralizer contains an x-ray source, which may be subject to local regulations.
  • Page 10 Do not apply power to the Model 3938 SMPS spectrometer unless the DMA high-voltage cable is connected to the 3082 Classifier and the base DMA is mounted to the 3082 Classifier.
  • Page 11 W A R N I N G n-insulated voltage within the instrument may have sufficient magnitude to cause electric shock. It is dangerous to make any contact with any part inside the instrument. W A R N I N G Indicates that the connector is connected to earth ground and cabinet ground.
  • Page 12 Note: You can also use the handle located above the fan guard on the back of the instrument.  Lift with your legs while keeping your back straight.  Keep the instrument close to your body as you lift. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 13: Table Of Contents

    C o n t e n t s Manual History .................... ii Warranty ..................... iii Software License (effective March 1999) ..........iv Safety ......................v Laser Safety ..................vi Radiation Safety ..................vi Chemical Safety ................... vii Electrical Safety ................... viii Description of Safety Symbols and Labels ..........
  • Page 14 Auto Recovery Feature ..............5-52 Shutting Off the Electrostatic Classifier ..........5-53 CHAPTER 6 Maintenance, Service, and Troubleshooting ....6-1 Recommended Cleaning Solutions ..........6-2 Cleaning the Impactor ..............6-2 Replacing Impactor O-Rings ............6-4 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 15 Cross Section of Model 3081A Long DMA ........1-7 Cross Section of Model 3085A Nano DMA ........1-8 Model 3082 Electrostatic Classifier with Nano DMA and CPC ..1-10 Flow Equalizer Assembly ............... 1-11 Electrostatic Classifier Front Panel ..........4-2 Electrostatic Classifier Back Panel ..........
  • Page 16 5-35 Electrostatic Classifier Display Screen for External Control ..5-51 Long DMA: Cleaning the Electrodes (shown with 3081 base plate) ..................6-13 1nm-DMA and Nano DMA: Cleaning Electrodes (shown with 3085 base plate) ..............6-15 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 17 Location of Flow Paths Contributing to Diffusion Losses ..... B-19 T a b l e s Electrostatic Classifier Packing List ..........2-1 3082 Accessory Kit ................2-2 1035990 SMPS Spectrometer Accessory Kit ........2-2 3081U Long DMA Upgrade Kit ............2-2 Model 3081A Long DMA Accessory Kit ...........
  • Page 18 Coefficients for Equation B-2 used for soft X-ray Neutralizer (Model 3088), from Knobel et al. (2013) ........B-11 Electrostatic Classifier Firmware Commands Description ..... C-3 Electrostatic Classifier Firmware Commands List (select) ..... C-3 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 19: Purpose

    The following information is a guide to the organization of this manual.  Chapter 1: Product Overview Contains an introduction to the Electrostatic Classifier Model 3082, a list of features, and a brief description of how the instrument works. ...

  • Page 20: Related Product Literature

    If the comment sheet has already been used, please mail your comments on another sheet of paper to: TSI Incorporated Particle Instruments 500 Cardigan Road Shoreview, MN 55126 Fax: (651) 490-3824 E-mail Address: particle@tsi.com xviii Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 21 P r o d u c t D e s c r i p t i o n The Electrostatic Classifier Model 3082 can be used with a Long, Nano, or 1nm-Differential Mobility Analyzer (DMA). The DMAs are particle size selectors allowing you to generate a monodisperse aerosol stream with particles of known size from a polydisperse aerosol input.

  • Page 22: Electrostatic Classifier Model 3082 With Long Dma

    Figure 1-1 when used with a TSI Model 3480 Electrostatic Classifier Electrospray Aerosol Generator. Model 3082 with Long DMA Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 23: Chapter 1 Product Overview

    H o w i t W o r k s The Model 3082 Electrostatic Classifier consists primarily of an impactor to remove large particles (outside the size range of interest), a charger to neutralize the charges on particles, a controller to control flows and high- voltage, and a Differential Mobility Analyzer (DMA) which separates particles based on their electrical mobility.

  • Page 24: Impactor

    The impactor is also used as a flowmeter, since the pressure drop across the impactor is proportional to the square of the flow rate. The Model 3082 can be operated with one of three impactors. The orifice size and flow rate determine the largest particle size that can be sampled within each SMPS spectrometer measuring size range.

  • Page 25: Sheath Flow

    Sheath Flow Sheath flow is required for use with DMAs. The sheath flow controller maintains a constant flow through the sheath flow loop. The loop consists of a pump (blower), two HEPA filters, a heat exchanger, flowmeter, a temperature sensor, a relative humidity (RH) sensor, and a pressure sensor.

  • Page 26: Differential Mobility Analyzer (Dma)

    Differential Mobility Analyzer (DMA) The Model 3082 Electrostatic Classifier can be used with a Model 3081A Long DMA, a Model 3085A Nano DMA, or a Model 3086 1nm-DMA. If you have a previous-model DMA (3081 or 3085), you can purchase an upgrade kit from TSI to make it compatible with the Model 3082.

  • Page 27: Cross Section Of Model 3081A Long Dma

    Long DMA The Model 3081A Long DMA provides a size range of 10 to 1000 nm. A cross-sectional view of the Long DMA is shown in Figure 1-3. The mobility analyzer consists of two cylindrical electrodes made of polished stainless ®...

  • Page 28: Cross Section Of Model 3085A Nano Dma

    Long DMA so that their performance is optimized for small particles. A cross-sectional view of the Nano DMA is shown in Figure 1-4. Figure 1-4 Cross Section of Model 3085A Nano DMA Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 29: Bypass Flow

    This is especially important when using the 1nm-DMA with particles <3 nm. Bypass flow is not provided by the 3082 Classifier, but can be pulled or exhausted from the 3085 or 3086 through the Bypass Flow port. The Bypass Flow port is shipped with an end-cap attached.

  • Page 30: Dma High Voltage Controller

    The CPC provides accurate particle measurements at high and low concentrations at data rates of up to 50 Hz. Figure 1-5 Model 3082 Electrostatic Classifier with Nano DMA and CPC 1-10 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 31: Flow Equalizer Assembly

    The flow equalizer assembly relies upon back pressure in the aerosol Figure 1-6 line of the 3082 to overcome the Flow Equalizer Assembly pressure drop of the HEPA filter. Therefore an impactor must be installed in the inlet of the classifier when using the flow equalizer assembly.
  • Page 32 (This page intentionally left blank) 1-12 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 33: Packing List

    U p t h e E l e c t r o s t a t i c C l a s s i f i e r Use the information in this chapter to unpack and set up the Model 3082 Electrostatic Classifier.

  • Page 34: 3082 Accessory Kit

    6006767 Shielded USB cable 962002 RS-232 cable (goes between Classifier and CPC) If the 3082 is purchased as part of a 3938 SMPS system, you will receive an additional SMPS accessory kit and AIM3938 Aerosol Instrument ® Manager software. Table 2-3 lists the components included in the SMPS Accessory Kit.

  • Page 35: Model 3081A Long Dma Accessory Kit

    If a 3081A is purchased, you will receive an additional 3081A Accessory Kit. Table 2-5 lists the components included in the Model 3081A Accessory Kit. Table 2-5 Model 3081A Long DMA Accessory Kit Part Number/ Qty. Model Number Description 1030389 Dacron screen assembly In order to convert a 3085 Nano DMA into a 3085A Nano DMA (recommended), you must purchase the 3085U upgrade kit.

  • Page 36: Unpacking

    Therefore, install the cabinet with at least a two-inch (50 mm) clearance between the back panel and any other surface. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 37: Setting Up The Instrument

    This section contains instructions for setting up the classifier. The classifier can be operated with either the Model 3077/3077A Neutralizer or the Model 3088 Advanced Aerosol Neutralizer. The Model 3082 is not shipped with either a DMA or Neutralizer installed.

  • Page 38: Installing Lead Shielding

    Installing Lead Shielding A lead radiation shielding (optional accessory) may be installed inside the Electrostatic Classifier Model 3082. This shielding is at least 10 mm thick and will reduce the radiation level to <1 µSv/hr at a distance of 10 cm from any touchable surface of the classifier.
  • Page 39 2. Tilt and lift off the cover leaving the five loosened screws in place. 3. Using a Phillips-head screwdriver, remove the two screws securing the flag assembly and save for reuse. 4. Lift out the flag assembly by placing your fingers in the depressions on either side and pulling up on the Polydisperse Flow outlet port.
  • Page 40 7. Lift out the flag assembly housing and rest it on the top of the instrument. Note: The housing is tethered and cannot be removed completely. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 41 11. Screw the housing in place using the screws you removed in step 5. 12. Reinstall the classifier cover. C a u t i o n Do not ship the Model 3082 Electrostatic Classifier with the lead shielding installed, or damage to the classifier may result. Unpacking and Setting Up...

  • Page 42: Installing The Model 3077/3077A Neutralizer

    2. Lift out the flag assembly by placing your fingers in the depressions on either side and pulling up on the Polydisperse Flow outlet port. 2-10 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 43 3. Fit the longer neutralizer tube into the hole at the bottom of the flag assembly. The head of the screws along the side of the neutralizer should face away from the Polydisperse Flow outlet tube. 4. Push the neutralizer and the flag assembly together.
  • Page 44 The yellow indicator flag indicates a neutralizer is installed. A classifier should never be shipped with a 3077/3077A neutralizer installed due to transport regulations of devices containing radioactive material. See Model 3077 manual for proper transport and shipping protocol. 2-12 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 45: Installing The Model 3088 Neutralizer

    Installing the Model 3088 Neutralizer W A R N I N G The Model 3088 Advanced Aerosol Neutralizer contains an x-ray source, which may be subject to local regulations. During normal operation, you will not be exposed to x-ray radiation. Do not detach the x-ray source from the neutralizer tube.
  • Page 46 5. Reinstall the two retaining screws you removed in step 1. 6. Insert the key into the interlock on the neutralizer. Detailed instructions for operating the Model 3088 Neutralizer can be found in the Operation and Service Manual, P/N 6006729. 2-14 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 47: Installing An Impactor

    The impactors are provided in the 3082 Accessory Kit (shipped with the instrument). The impactor nozzle size and aerosol flow rate determine the largest particle size that can be sampled within each SMPS spectrometer measuring size range.
  • Page 48 For scanning that requires high precision of concentration measurements, manually enter the aerosol inlet flow rate 2-16 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 49: Upgrading A Nano Dma

    Upgrading a Nano DMA If you have an existing DMA, an upgrade kit must be purchased for proper use with the Model 3082 Electrostatic Classifier. Tables 2-4 and 2-6 describe the upgrade kit packing lists for a Long DMA and a Nano DMA.
  • Page 50 8. Remove the base plate and discard. 9. Remove the new base plate from the upgrade kit. 2-18 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 51 Locate the serial number sticker on side of DMA, and record on a piece of paper. It will be used in the programming steps discussed below. Chapter 2, “Installing a DMA”). ii. Install DMA onto the 3082 (see iii. Turn on the 3082. Unpacking and Setting Up 2-19...

  • Page 52: Upgrading A Long Dma

    WSDMAOD 0.03810 WSDMATYPE 1 DOSAVEDMAEEPROM vi. Turn off to the 3082 for at least 10 seconds, then power back on. Once the main screen loads, verify that the correct DMA model number is indicated. 17. The 3085 Nano DMA is now fully compatible with the 3082 Electrostatic Classifier.
  • Page 53 3. Using a wrench, remove the Excess Flow (Sheath Flow –) fitting. 4. Remove any existing Teflon tape from the Excess Flow fitting. Apply new Teflon tape to the fitting. 5. Replace the Excess Flow fitting on the Long DMA in a vertical position.
  • Page 54 11. Set DMA upright. Loosen locking ring at top of DMA and rotate the head of the DMA clockwise 180 degrees for ease of tube routing with the 3082, as shown below: DIRECTION OF ROTATION 2-22 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 55 WSDMAOD 0.03922 WSDMATYPE 1 DOSAVEDMAEEPROM vi. Turn off to the 3082 for at least 10 seconds, then power back on. Once the main screen loads, verify that the correct DMA model number is indicated. 16. The 3081 Long DMA is now fully compatible with the 3082 Electrostatic Classifier.

  • Page 56: Installing A Dma

    Installing a DMA The Model 3082 can be operated with a Long DMA a Nano DMA or a 1nm- DMA. The DMAs mount onto the classifier with a quick-connect bracket containing a spring-loaded locking mechanism; the bracket provides support as well as electrical grounding. Mounting holes for optional side- support bracket (DMA-BRACKET) are provided for operating in environments with high vibration and to hold the DMA more securely.
  • Page 57 4. Push one end of the 25-inch length onto the Sheath Flow + fitting on the Long DMA. Push one end of the 12-inch length tubing onto the Sheath Flow - fitting on the bottom of the Long DMA. 5. Place the base of the Long DMA at an angle over the classifier mounting plate and snap the Long DMA into place.
  • Page 58 Polydisperse flow. Remove the ¼-inch black conductive tubing from the Accessories Kit. Using the provided tube cutter, or a clean razor blade, cut a 21-inch length of tubing. 2-26 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 59 9. Push one end of the tubing onto the Polydisperse Flow port on the classifier. 10. Push the other end of the tubing onto the Polydisperse Flow fitting on the Long DMA. Unpacking and Setting Up 2-27...
  • Page 60 If the Bypass Flow will not be used, leave the cap in place and continue with step 2. 2. Remove the 3/8-inch black conductive tubing from the 3082 Accessory Kit. Using the provided tube cutter, or a clean razor blade, cut two 6.5-inch lengths of tubing.
  • Page 61 5. Place the base of the DMA at an angle over the classifier mounting plate and snap the DMA into place. The curved side of the DMA base faces away from the classifier. 6. Push the tubing connected to the Sheath Flow – fitting on the manifold to the Sheath Flow –...

  • Page 62: Alternative Installation Of The 1Nm-Dma

    1nm-DMA, leaving a female outlet port. Save this ¼” tube for future use. 5. Remove the 3/8-inch black conductive tubing from the 3082 Accessory Kit. Using the provided tube cutter, or a clean razor blade, cut two 24 in.
  • Page 63 7. Fit the flow manifold onto the DMA. 8. Line up the (female) outlet port of the 1nm-DMA with the (male) inlet port off the Model 3777 Nano Enhancer and press the DMA onto the Nano Enhancer. 9. Push the tubing connected to the Sheath Flow – fitting on the manifold to the Sheath Flow –...

  • Page 64: Using Nano Dma Or 1Nm-Dma Bypass Flow

    Model 3086 1nm-DMA must be snapped into the classifier as in Step 2 above or it will not be automatically recognized by the Model 3082 classifier. Alternatively, the Model 3086 1nm-DMA can be manually selected through Setup > Properties > Hardware >...

  • Page 65: Connecting The Dma To The High Voltage Port

    Note: It is recommended that an impactor not be used with Bypass Flow since the additional flow may result in an inaccurate aerosol flow measurement and an incorrect impactor D . For more on acceptable impactor flow rates see Installing an Impactor Chapter 2.
  • Page 66 Nylon ferrules are provided with the flow equalizer assembly. Do NOT replace the nylon ferrules with metal ferrules as this may result in permanent swaging of the flow equalizer assembly. 2-34 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 67: Upgrading Detector Firmware

    Push the other end of the tubing onto the CPC inlet. 4. Locate the Serial port on the back of the 3082. Using the RS-232 cable provided in the Model 3082 Accessory Kit, connect the Serial port on the back panel of the classifier to a Serial port on the back of the detector.

  • Page 68: Installing Aerosol Instrument Manager Software

    If the classifier will be used with the TSI Aerosol Instrument Manager software, install the software on your PC. Aerosol Instrument Manager software, versions 10.0 and above are compatible with the 3082 and 3938. For installation requirements and install procedure, consult Chapter 2 of the Aerosol Instrument Manager Software User’s Manual (P/N 1930038)
  • Page 69 Ethernet Communication The classifier is compatible with either 10 or 100 MBps systems. The green LED indicates that the network is connected. The yellow LED indicates activity on the network cable. The instrument cannot be operated using power-over-Ethernet (POE). If using the Ethernet connection, the classifier can be set up in various configurations: ...

  • Page 70: Powering On The Classifier

    Once the instrument is initially switched on using the rocker switch, use the front power button to turn on and shut down the classifier. 2-38 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 71 E l e c t r o s t a t i c C l a s s i f i e r Use the information in this chapter to prepare the Model 3082 Electrostatic Classifier for moving, shipping, or storage.

  • Page 72: Preparing For Shipping

    3. If you are using a Model 3088 Neutralizer, follow these instructions to remove it: a. Use a Phillips-head screwdriver to unscrew the two truss-head screws holding the neutralizer in place. b. Lift out the neutralizer column. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 73 4. If you are using a Model 3077/3077A Neutralizer, follow these instructions to remove it: a. Use a Phillips-head screwdriver to unscrew the two truss-head screws holding the neutralizer in place. b. Slide the neutralizer and flag assembly out of the classifier. 5.
  • Page 74 Remove four (4) screws holding the neutralizer enclosure in place. Rest on top of the classifier. d. Locate the lead shielding and carefully lift out. e. Replace the flag assembly housing. Replace the instrument cover. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 75 6. Place the classifier in the original packing provided by TSI Inc. a. Place the classifier in the smaller of the two boxes, securing it within the lower foam inserts. b. Place the upper foam insert over the classifier. Close and tape the box.
  • Page 76 (This page intentionally left blank) Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 77 I n s t r u m e n t D e s c r i p t i o n Use the information in this chapter to become familiar with the location and function of controls, indicators, and connectors on the Model 3082 Electrostatic Classifier.

  • Page 78: Electrostatic Classifier Front Panel

    The main components of the Electrostatic Classifier front panel are shown in the figure below. The main components are the touch-screen display, the power button, and the aerosol inlet. Figure 4-1 Electrostatic Classifier Front Panel Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 79: Chapter 4 Instrument Description

    B a c k P a n e l The main components of the Electrostatic Classifier back panel are shown in the figure below. Components include power and data connections and the cooling fan. Figure 4-2 Electrostatic Classifier Back Panel Instrument Description...

  • Page 80: Side Panel

    The main components of the Electrostatic Classifier side panel are shown in the figure below. Components include the neutralizer, data acquisition port, high-voltage power socket, flow inlets, and DMA base plate. Figure 4-3 Electrostatic Classifier Side Panel Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 81: Internal Instrument Components

    I n t e r n a l I n s t r u m e n t C o m p o n e n t s Internal components are described in this section and identified in the photos below. Figure 4-4 Electrostatic Classifier Internal Components (viewed from side) Instrument Description...

  • Page 82: Main Components

    M a i n C o m p o n e n t s Aerosol Inlet/Impactor An inlet adapter is installed in the Model 3082 when shipped; the impactors are included in the 3082 Accessory Kit. For details about using the inlet...

  • Page 83: Inlet Manifold

    Flag Assembly The flag assembly routes flow from the top of a 3077/3077A neutralizer and out to the DMA. It is shipped standard with every Model 3082 and is installed without a neutralizer. When installed with a neutralizer, a yellow indicator flag is present indicating that a neutralizer is installed.

  • Page 84: Sheath Flow Loop

    PCB and is exposed to the sheath flow path. Display PCB Contains circuitry associated with the touch-screen display. High-Voltage Installed only in units with the dual-polarity option to facilitate switching between polarities. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 85: High-Voltage Power Supply

    High-Voltage Power Supply The high-voltage power supply provides a charge on the center rod of the DMA. For single-polarity units, a single (negative) high-voltage module is installed. For dual-polarity units, two high-voltage modules are installed (one positive and one negative). Dual polarity units also include a high- voltage relay PCB which facilitates switching between the two polarities.

  • Page 86: Electrostatic Classifier Back Panel Communication Ports

    C a u t i o n The external input/output terminals provide a low-voltage NON-isolated interface to external devices. Observe all polarity and rating of the signal levels to avoid damage to the instrument. 4-10 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 87 The following options are available on the Digital I/O: Out 1 The Not Ready signal. Indicates one of the following: status flag errors from the connected detectors, status flag errors for the Classifier, flows off or not at steady operating condition, temperature faults, undefined or non-valid hardware configuration, SMPS spectrometer scanning is in process, or the STOP input is asserted.

  • Page 88: Wetted Materials

    Wetted Materials The materials in the aerosol and sheath flow path inside the 3082 Electrostatic Classifier were chosen to tolerate a wide variety of aerosols. However, highly corrosive or volatile aerosols and gases may result in corrosion or damage of internal component or contamination of your sample aerosol.

  • Page 89: Operating Precautions

    C H A P T E R 5 I n s t r u m e n t O p e r a t i o n This chapter describes how to operate the Model 3082 Electrostatic Classifier using the touch-screen display. Touch the screen with your fingers or the supplied stylus to make selections.

  • Page 90: Operating The Electrostatic Classifier

    The mode you use depends upon your requirements and hardware. Classifier mode Used when you are operating the 3082 as a particle generation source. The 3082 controls the DMA sheath flow and voltage to output a monodisperse aerosol.

  • Page 91: Title Bar

    Same as SMPS mode, but with more options for External control mode data analysis. Aerosol Instrument Manager software on a personal computer controls the DMA and detector during an SMPS spectrometer scan, shows the scan data in a graphical format, and performs data collection and analysis.

  • Page 92: Electrostatic Classifier Status Icons

    Choosing the diffusion correction enables a mathematical correction for diffusion losses of particles in their flow path within the SMPS system. It Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 93: Electrostatic Classifier Error Screen

    is especially important to use diffusion loss correction when sizing aerosols <100 nm because diffusion becomes increasingly important in this size. Note: While it is possible to toggle corrections on and off when viewing a completed scan, the correction must be on before the sample is initiated in order for the exported data to use the correction.

  • Page 94: Electrostatic Classifier Error Messages

    The neutralizer charge correction file is missing from the Error firmware, or there was an error when opening it. Detector Firmware Not The CPC firmware is not supported by the 3082. CPC Supported firmware upgrade needs to be downloaded. Sheath Flow warning The Sheath Flow rate has not yet reached target setpoint.

  • Page 95: Operating In Classifier Mode

    O p e r a t i n g i n C l a s s i f i e r M o d e In Classifier mode, the instrument is controlled from the front-panel display screen. The Electrostatic Classifier main screen in Classifier mode is shown in Figure 5-2 below.

  • Page 96: Setting Sheath Flow

    The particle size must be between the Min and Max (Min:5.6 Max: 238.4 in the example above) displayed beneath the size field. The current setpoint is displayed near the upper right of the Particle Diameter field. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 97: Setting Dma Voltage

    To set the DMA voltage on the main display screen, follow these instructions: 1. Using your finger or a stylus, touch the Voltage (v) field. Figure 5-5 Setting DMA Voltage 2. Using the onscreen keypad, enter the voltage to change the setpoint. 3.

  • Page 98: Operating In Smps Mode

    Setting scan properties.  Viewing scan details.  Selecting multiple charge or diffusion corrections. These options are explained in detail on the following pages. Figure 5-6 Electrostatic Classifier Main Screen 5-10 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 99: Title Bar

    Title Bar The title bar contains the date, time, correction toggle icons, data logging toggle icon, error message icon (if errors are present) and neutralizer icon (if installed). It displays the title of each screen. When on the SMPS screen, the title bar displays the instrument status: ...

  • Page 100: X-Axis Settings

    X-axis settings only impact data and statistics on the SMPS screen. They do not affect inverted data and statistics exported from the classifier. Exported data will always use 64 channels/decade and Max view boundaries. 5-12 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 101 Histogram data within the View Boundaries is displayed in blue, and data outside of View Boundaries is displayed in gray. The statistics displayed on the SMPS screen use only data within the View Boundaries. Note that this differs from the statistics in exported data files, which relate to the entire size range regardless of View Boundaries.

  • Page 102: Y-Axis Settings

    ) by Density default. Return to main screen. Graph and statistics will be updated based on your selections. Cancel Return to main screen and cancel any changes to y-axis settings. 5-14 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 103 Notes:  Y-axis settings only impact data and statistics on the SMPS screen. They do not affect inverted data and statistics exported from the classifier. Exported data will always use Number weighting and units of dN/dlogDp concentration.  A size distribution displaying Raw Counts is not one of the y-axis options.

  • Page 104: Scan Statistics Pane

    The statistics in the Statistics pane may not be identical to the statistics in the exported data, since the exported data calculations use fixed weights (Number), units (dN/dlogDp), and resolution (64 ch/decade), and are based on the full scanned size range. 5-16 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 105: Viewing Settings

    Viewing Settings You can view all your selected settings including hardware, scan, flow, correction, gas, scheduling, date and time, communications, x-axis, and y-axis settings on one screen. To view the settings, touch the information button on the main screen use your finger or a stylus to scroll through the displayed settings. Instrument Operation 5-17...

  • Page 106: Using The Setup Screen

    Export or delete internally logged data. Logging Options Set up logging options such as whether raw data is saved, where data is saved (to USB flash drive or to internal SD card), and delimiter options. 5-18 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 107: Viewing And Setting Properties

    Viewing and Setting Properties Properties options allow you to view and edit the SMPS spectrometer hardware configuration, set up scan scheduling, and make changes to the sheath flow gas parameters. The Properties screen can be entered either from the Setup screen or from the SMPS screen by clicking on the Properties shortcut button Figure 5-8 Electrostatic Classifier Properties Tabs...
  • Page 108 Touch OK to save your selections. Scan Tab To set the scan options, follow these instructions: 1. Touch the Scan tab on the Properties screen. 5-20 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 109 Field Description Scan(s) Set the duration of the scan in seconds. Touch the field and enter the time from the on-screen keyboard. Is read-only and indicates the time in seconds required Retrace(s) for the system to reinitialize following a scan. Purge(s) Set the length of time in seconds to purge sample from the system before the next scan begins.
  • Page 110 Time is the clock start time in 24hr format (i.e., 13:30 is 1:30 PM). Note If Start Time is less than the current clock time, it will take effect the following day. 5-22 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 111 Option Description External Trigger Check the checkbox to enable. When enabled, the SMPS spectrometer will accept start and stop triggers through the digital I/O port on the back of the classifier. See the Communication Ports section in Chapter 4 for details on how to configure an external trigger.

  • Page 112: Electrostatic Classifier Properties Screen-Hardware Tab

    4. Touch the Neutralizer drop-down field and select an option from the list. This is useful if the neutralizer is being run external to the classifier. 5-24 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 113: Electrostatic Classifier Properties Screen-Tube Length

    Notes: If the system recognizes the installed neutralizer, you will not be able to override the setting. Exported data files will show Neutralizer Status “Off” in case of external use of 3087/3088. 5. The Detector field is a read-only field: the system displays the currently connected detector.

  • Page 114: Electrostatic Classifier Properties Screen - Gas Tab

    To enter in sheath flow temperature and pressure manually, touch the Manual Input checkbox. The allowable temperature range is 273.15 to 323.15 K (0 to 50°C), and the allowable pressure range is 70 to 120 kPa. 5-26 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 115: Viewing And Setting Device Options

    To change the information on the Gas Reference screen, touch the Reference Gas Properties button. By default the values shown represent gas parameters for air. If the sheath flow rate gas is something other than air (uncommon, must be externally controlled), enter the relevant parameters for that environment on this screen.
  • Page 116 To choose the Date Format (MM/DD/YYYY, DD/MM/YYYY, YYYY/DD/MM, or YYYY/MM/DD) press the arrows (▲▼) to toggle between the options. Touch OK to send the values to the system or Cancel to cancel the values. 5-28 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 117: Electrostatic Classifier Display Screen

    Display TSI performs touch-screen calibrations on all new Electrostatic Classifiers. Calibration is sensitive to viewing angle and a recalibration may be appropriate in some applications. To redo touch screen calibration on the Display screen, follow these instructions: Press the Touch Screen Alignment button. Figure 5-15 Electrostatic Classifier Display Screen Using the stylus, touch the center of the crosshairs icon positioned at...

  • Page 118: Electrostatic Classifier Information Screen

    Instrument Model number.  Instrument Serial number.  Instrument Manufacturer.  Last calibration date.  Firmware version number.  USB IP Address. Figure 5-16 Electrostatic Classifier Information Screen (continued on next page) 5-30 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 119: Electrostatic Classifier Diagnostics Screen

    Diagnostics The diagnostics screen shows a variety of measurements monitored on- board the classifier, many of which trigger warning or error conditions if limits are exceeded. Table 5-6 contains a brief description of each diagnostic. Values outside the acceptable range are displayed in either red or yellow on the instrument screen.

  • Page 120: Electrostatic Classifier Communications Screen

    1. In the IP Address, Subnet Mask or Default Gateway: field, to specify an address, use the arrows (▲▼) to select a value or touch the numbers in the field then select a value from the on-screen keypad. 5-32 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 121: Logging Data

    2. Touch OK to send the values to the system or Cancel to cancel the values. 3. A reboot is required to make any changes permanent. Field Description Use DHCP When checked, this protocol is used to automatically obtain the information necessary for operation from a DHCP server running on your local network.

  • Page 122: Electrostatic Classifier Logging Options Screen

    Note: If Log to Internal Memory box is unchecked but no flash drive is present when the start button is pressed, the classifier will automatically check the box and switch to log to internal memory. 5-34 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 123: Inverted Data Vs. Raw Data

    Inverted Data vs. Raw Data If Enable Logging is checked, size distribution data from each completed sample will be logged to a .txt file. The size distribution is logged as dN/dlogDp Concentration (#/cc) vs. size (nm). The file will be identical to the row format export option in the Aerosol Instrument Manager software, with the exception that the weighting and units in the inverted data file are fixed while the weighting and units in the Aerosol Instrument Manager...

  • Page 124: A Sample Raw Data Export File

    Raw Data Extension .txt .TIM Sample data dN/dlogDp vs. size CPC counts vs. time Resolution 64 channels/decade 50 Hz Records stored Per-sample Per-scan Contains SMPS scan parameters and hardware configuration 5-36 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 125: Exporting Data

    Feature Inverted Data Raw Data Suitable for import into Aerosol Instrument Manager Approximate file size 1kB per sample 2kB per second New file creation First completed sample First completed scan after Start button is after Start button is pressed, OR first pressed, OR first completed sample after completed sample...

  • Page 126: Approximate Data Transfer Times

    Data from 14 days Logging of continuous of continuous of continuous Option sampling sampling sampling Inverted data 1 second 5 seconds 2 minutes Inverted and 10 seconds 4 minutes 90 minutes raw data 5-38 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 127: Performing Calibrations

    C a u t i o n Approximately 16,000 files can be created in a single directory of the internal flash memory. Once this limit is reached, successive samples will not be saved. Performing Calibrations The Calibration screen allows either the manufacturer or the user to perform an instrument calibration, check the calibration, or return the calibration to factory defaults.

  • Page 128: Electrostatic Classifier User Calibration Screen-Sheath Flow Tab

    DMA if not already connected. 4. From the classifier Setup screen navigate to Calibration > User Calibration. Select the Sheath Flow tab. Figure 5-24 Electrostatic Classifier User Calibration Screen–Sheath Flow Tab 5-40 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 129: Electrostatic Classifier User Calibration Screen-Sheath Flow Setpoint Button

    5. To perform a calibration, set the Sheath flow to the first flow calibration point by pressing the corresponding Setpoint button. The Raw and Classifier data fields populate, the Reference cell for that row is activated, and an onscreen keypad appears. Note: Typically the calibration is performed from the smallest to the largest flow setpoint;...

  • Page 130: Electrostatic Classifier User Calibration Screen-Calibration Saved To Instrument

    Check button to verify an existing calibration. To check a calibration, follow these instructions: 1. For best results (more stable flow), install a DMA to add back pressure to the system. 5-42 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 131: Electrostatic Classifier User Calibration Screen-Sheath Flow Tab

    2. Disconnect the Sheath Flow + tubing from the DMA and connect it to a reference flowmeter with a flow accuracy of ± 2% or better over the ® range of 2 to 30 L/min, such as a Gilibrator meter. 3.

  • Page 132: Electrostatic Classifier User Calibration Screen-Reference Field

    Generally errors within ±2% indicate an acceptable calibration; however, a wider tolerance range may be acceptable for some applications. 8. If necessary, recalibrate the sheath flow to match your reference device. (continued on next page) 5-44 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 133: Electrostatic Classifier User Calibration Screen-Dp Tab

    Impactor Differential Pressure The differential pressure sensor has some sensitivity to temperature. The sensor should therefore be zeroed occasionally. It is also good practice to zero the pressure sensor before you perform an impactor calibration. To zero the differential pressure sensor, follow these instructions: Disconnect the DMA and the classifier from any flow sources to ensure zero flow through the classifier inlet.
  • Page 134 Gilibrator meter. 5. From the classifier Setup screen > Calibration > User Calibration > the Impactor Flow tab. The SN: (serial number) and Size: (impactor size) fields are automatically populated. 5-46 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 135: Electrostatic Classifier User Calibration Screen-Impactor Flow Tab

    6. To perform a calibration, set the impactor flow to the first flow calibration point by pressing the corresponding Setpoint button. The Actual and Classifier cells populate, the Reference cell for that row is activated, and an onscreen keypad appears. Note: Typically the calibration is performed from the smallest to the largest flow setpoint;...

  • Page 136: Electrostatic Classifier Calibration Out Of Range Warning

    If you wish to restore impactor factory calibrations on all impactors, you will need to repeat the Restore Factory Defaults procedure for all impactors separately. 5-48 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 137: Electrostatic Classifier Restore Factory Defaults

    To restore the factory default settings, follow these instructions: 1. Using your finger or a stylus, touch Factory Defaults. Figure 5-33 Electrostatic Classifier Restore Factory Defaults 2. Touch Sheath Flow and/or Impactor. Note: The Impactor field is unavailable if no impactor is installed. 3.

  • Page 138: Setting Up A Custom Dma

    WSCUSTOMDMAOD 3.922e-2 where the DMA outer diameter is 0.03922 m. WSCUSTOMDMATYPE Enter 1 for a cylindrical DMA or 2 for a radial DMA. Example: WSCUSTOMDMATYPE 1. DOREGSAVE Enter to save the data. 5-50 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 139: Operating In External Control Mode

    O p e r a t i n g i n E x t e r n a l C o n t r o l M o d e When operated as part of an SMPS system, Aerosol Instrument Manager software on a PC performs data collection and analysis and has control of the instrument.

  • Page 140: Auto Recovery Feature

    Notes field. Note: Sample records immediately following an auto-recovery will often contain errors due to the stabilization and warm-up times required by the system. 5-52 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 141: Shutting Off The Electrostatic Classifier

    S h u t t i n g O f f t h e E l e c t r o s t a t i c C l a s s i f i e r To shut off the Electrostatic Classifier, follow these instructions: 1.
  • Page 142 (This page intentionally left blank) 5-54 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 143: 3082R-Maint Model 3082 Electrostatic Classifier Maintenance Kit

    Service and Maintenance procedures described in this section should only be performed by a qualified, trained service technician. You can purchase a 3082R-MAINT Model 3082 Maintenance Kit to perform routine maintenance procedures on your classifier. Table 6-1 lists the components contained in the maintenance kit.

  • Page 144: Recommended Cleaning Solutions

    Replace CPC filter cartridges (See separate manuals) Recommended Cleaning Solutions The external surfaces of the 3082 may require cleaning time-to-time. Isopropanol or soapy water can be used to clean the classifier (display, chassis, impactor, DMA). Dampen a cloth with cleaning solution to apply.
  • Page 145 2. Separate the impactor body from the impaction plate by pulling the two pieces apart. 3. Clean the impaction plate with a soft cloth soaked in isopropanol. 4. In order to prevent particle bounce, apply a thin film of vacuum grease to the impaction plate.

  • Page 146: Replacing Impactor O-Rings

    4. Using a pin or a small, slotted screwdriver, remove the two 1-017 radial O-rings (2501605) from the outside of the impaction plate. Be careful not to puncture the O-ring during the removal process. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 147 5. Remove the thicker, 1-207 face-seal O-ring (6006680) from the bottom face of the impaction plate. 6. Remove replacement O-rings and vacuum grease from the 3082 Accessory Kit. Follow the instructions in the Greasing O-rings section below and smear a small amount of vacuum grease onto the replacement O-rings.

  • Page 148: Greasing O-Rings

    To grease the O-rings, follow these instructions: 1. Remove the O-rings from the impactor following the procedure noted above. 2. Place a small amount of standard vacuum grease on your finger. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 149: Changing The Flag Assembly O-Ring

    3. Grease each O-ring and replace. Changing the Flag Assembly O-ring If you find a leak in the flag assembly during a zero count test or leak check, change the flag assembly O-ring. To change the flag assembly 2501010 O-ring, follow these instructions: 1.

  • Page 150: Removing The Cover

    The bottom two and top three need not be completely removed—just loosened. Remove the other screws with a Phillips head driver and save them for reuse. Note: Leave the captive washers attached to the screws. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 151: Replacing The Inline Filters

    3. Tilt and lift off the cover leaving the five loosened screws in place. Replacing the Inline Filters There are two HEPA sheath flow filters in the classifier: one upstream and one downstream of the sheath flow blower. Although the sheath flow blower is powerful enough to overcome significant pressure drop due to loaded filters, the filters may need periodic replacement.
  • Page 152 W A R N I N G If dirty filters are inserted in the wrong orientation, particles may be pushed back into the instrument. 6-10 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 153: Replacing The Flowmeter

    Replacing the Flowmeter The flowmeter could be damaged if flow was run in the wrong direction for a significant period of time or if the instrument was dropped or otherwise mishandled. A “Sheath flow error” message on the display screen may indicate a damaged flowmeter.
  • Page 154 O-ring in place. 10. Using the 9/64-inch hex wrench, replace the three screws you removed in step 4. 11. Replace the instrument cover. 6-12 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 155: Cleaning The Dma Electrodes

    Cleaning the DMA Electrodes W A R N I N G High-voltage is accessible within this instrument. Unplug the power source before removing the cover to perform maintenance procedures. Unplug the high-voltage cable from the classifier to the DMA before disassembling the DMA or performing maintenance procedures.
  • Page 156 (with respect to the outer tube) or you may loosen the center rod. 12. Power on the classifier and test the DMA for leaks (see Performing ISO Zero Tests). 6-14 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 157: 1Nm-Dma And Nano Dma: Cleaning Electrodes (Shown With 3085 Base Plate)

    Cleaning the Nano DMA or 1nm-DMA Electrodes During cleaning procedures, refer to Figure 6-2 below. Figure 6-2 1nm-DMA and Nano DMA: Cleaning Electrodes (shown with 3085 base plate) Maintenance, Service, and Troubleshooting 6-15...
  • Page 158 Do not scratch the rod surface or the inner surface of the outer tube. Do not dent the Dacron screen or the cone edge near the top of the rod. If you damage the mobility analyzer assembly, contact TSI. 6-16 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 159: Reassembling Base With Grounding Wire

    12. Carefully reassemble the center rod and outer tube. W A R N I N G When reassembling the base, ensure that the ground wire is secured by the ground set screw. Use a 0.050-inch Allen wrench to tighten the set screw.

  • Page 160: Cleaning/Changing The Dma Dacron Screen

    If you experience arcing problems, replace or clean the screen. An extra Dacron screen was included with the DMA when shipped. Two additional Dacron screens are included in the optional 3082 Maintenance Kit 3082R-MAINT. Cleaning/Replacing the Long DMA Screen During cleaning procedures, refer to Figure 6-4 below.
  • Page 161 Clean the Dacron screen by following these instructions: 1. Remove the collector rod following the steps in Cleaning the Long Electrodes. 2. Hold the center collector rod at the top and bottom and unscrew the rod from the top portion. Separate the rod from the top. 3.

  • Page 162: Cleaning The Nano Dma Or 1Nm Dma Dacron Screen (Shown With The 3085 Base Plate)

    C a u t i o n Do not damage the sharp edge at the bottom of the sheath assembly. 4. Using the tool from step 2, remove the retaining screw from the sheath cone. 6-20 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 163: Performing Iso Zero Tests

    5. The upper insulator is pressed into the sheath cone to maintain good alignment of the center rod therefore the insulator must be pressed out from below by pushing on the Dacron screen. Orient the sheath cone so that the sharp edge is pointed upwards. Place the cone in a press and support it by the outer edges.
  • Page 164 6. Remove the high efficiency HEPA filter from the Accessory Kit. Using a length of clear tubing (not provided), connect the filter to the CPC inlet. 6-22 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 165 7. Run a scan with the HEPA filter installed. Do not end scan before it has finished—let it scan the across the entire high voltage range of the classifier. There should be zero (or very few) particles detected across the particle size distribution. To perform the SMPS spectrometer Zero test, follow these instructions: Install a DMA and leave the classifier inlet open to the air.

  • Page 166: Performing A Leak Check

    7. Monitor the pressure of the vacuum system using a manometer. The leakage rate is acceptable if the pressure inside the classifier system changes by less than 5% per hour. 6-24 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 167: Performing User Recalibrations And Checks

    Performing User Recalibrations and Checks Check or recalibrate the sheath flow as part of your routing maintenance to ensure ±2 percent accuracy of sheath flow rate. Full details of the sheath flow calibration are given in Chapter 5, Performing a User Calibration.
  • Page 168 Sheath Flow Error Sheath flow reading is not stabilizing within allowable range. Flowmeter is not functional or is The 3082 maintenance kit can be purchased from TSI inaccurate. which includes a flowmeter. Blower is not functioning Return instrument to TSI for service.
  • Page 169 Problem Cause Suggested Action Sheath Flow Warning Sheath flow has been changed Allow sheath flow to stabilize, do not take in the last 30 seconds, and is measurements during this time. stabilizing Sheath Pressure Error Absolute pressure sensor is The allowable operating pressure range of the measuring outside of allowable instrument is 70 to 125 kPa.
  • Page 170 Connecting the Classifier to the Computer for details. 3082 has not been power cycled Power 3082 off, then power back on again, then since the last time it was connect USB to the PC. connected to a PC. 3082 must be power cycled before connecting to a different PC.
  • Page 171 Rounding errors in inversion An inverted data mismatch between Aerosol Instrument logged data and Aerosol algorithm. Manager software and the 3082 can occur since the raw Instrument Manager data is being processed by two separate inversion software when looking at algorithms.
  • Page 172 Ethernet possibility for poor response time. See Chapter 2, between classifier and PC Connecting the Classifier to the Computer for details. 6-30 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 173: Technical Contacts

    52068 Aachen GERMANY Telephone: +49 241-52303-0 Fax: +49 241-52303-49 E-mail: tsigmbh@tsi.com Web: www.tsiinc.de TSI Instruments Ltd. Stirling Road Cressex Business Park High Wycombe, Bucks HP12 3ST UNITED KINGDOM Telephone: +44 (0) 149 4 459200 Fax: +44 (0) 149 4 459700 E-mail: tsiuk@tsi.com...

  • Page 174: Returning The Electrostatic Classifier For Service

    C a u t i o n Do not ship the Model 3082 Electrostatic Classifier with the lead shielding, the Neutralizer, or the DMA installed.  Lead shielding—Do not return the classifier with lead shielding installed, as this may cause damage to the classifier during shipment.
  • Page 175 (This page intentionally left blank) Maintenance, Service, and Troubleshooting 6-33...

  • Page 177: Smps Spectrometer Specifications

    S p e c i f i c a t i o n s The following tables contain the operating specifications for the Scanning Mobility Particle Sizer (SMPS) Spectrometer Model 3938 and the Electrostatic Classifier Model 3082. These specifications are subject to change without notice. Table A-1...

  • Page 178: Smps Specifications

    26 x 18 x 25 cm, 5.5 kg 3775/6 ..........25 x 32 x 37 cm, 9.9 kg 3777 25 x 32 x 37 cm, 9.9 kg 3787/8 ..........31 x 16 x 28 cm, 5.5 kg Model 3082 Electrostatic Classifier and SMPS Spectrometer Model 3938...

  • Page 179: Electrostatic Classifier Specifications

    Table A-3 Electrostatic Classifier Specifications Mode of operation Bipolar diffusion charge neutralization and differential mobility analysis (requires installation of DMA). Flow rates Sheath flow ........2 to 30 L/min ±2% of reading Aerosol flow ........When measured with inlet impactor: 0.2 to 0.8 L/min with 0.0457 cm nozzle 0.3 to 1.0 L/min with 0.0508 cm nozzle 0.6 to 2.1 L/min with 0.0710 cm nozzle...

  • Page 180: Appendix A Specifications

    Sheath flow ports ....-in OD Complete instrument 40.5 cm  28 cm  64.3 cm Dimensions (LWH) ..... (16 in  11 in  25.3 in) Weight ........ 20 kg (45 lb) Model 3082 Electrostatic Classifier and SMPS Spectrometer Model 3938...
  • Page 181 Weight ......... 17 kg (38 lb) Order Model 3082-HVPOS when ordering the Classifier Model 3082 to have your Classifier shipped with dual, switchable DMA-voltage (negative and positive). When ordered later, the classifier must be shipped to TSI for installation and calibration.
  • Page 182 Weight ......... 17 kg (38 lb) Order Model 3082-HVPOS when ordering the Classifier Model 3082 to have your Classifier shipped with dual, switchable DMA-voltage (negative and positive). When ordered later, the classifier must be shipped to TSI for installation and calibration.
  • Page 183 A P P E N D I X B T h e o r y o f O p e r a t i o n The principle behind operating the Model 3082 Electrostatic Classifier with any DMA is based on the monotonic relationship between electrical mobility and particle size of single-charge particles.
  • Page 184 Electronic control of flow, voltage, particle-size, and instrument functions. In September 2013 TSI began shipping a redesign of earlier Classifier models as the Model 3082. The instrument retains all the functionality of the 3080 with improvements such as:  Dual polarity DMA high voltage control with <50ms response time for faster scanning.

  • Page 185: Appendix B Theory Of Operation

    I m p a c t i o n T h e o r y a n d O p e r a t i o n The aerosol first enters an impactor mounted on the exterior of the classifier (see Figure B-1), which removes particles above a known particle size by inertial impaction.
  • Page 186 The Stokes number is a dimensionless parameter that characterizes impaction. Values and equations for the gas mean free path and the dynamic gas viscosity are described in the Particle Mobility Theory section. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 187: Electrostatic Classifier

    E l e c t r o s t a t i c C l a s s i f i e r The purpose of the classifier is to extract a known size fraction of submicrometer particles from the incoming polydisperse aerosol. In the classifier, the aerosol enters a charger (either the 3088 or 3077/3077A) which exposes the aerosol particles to high concentrations of ions of both positive and negative polarity.

  • Page 188: Flow Schematic For The Electrostatic Classifier With Long Dma

    Figure B-3 Flow Schematic for the Electrostatic Classifier with Long DMA Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 189: Flow Schematic For The Electrostatic Classifier With Nano Or 1Nm-Dma

    Figure B-4 Flow Schematic for the Electrostatic Classifier with Nano or 1nm-DMA Theory of Operation...

  • Page 190: Charging Theory

    This table was calculated based on Wiedensohler [1988] and Kim et al. [2005]. The fractions in Table B-1 correspond to the fractions used in the Aerosol Instrument Manager software and in the Classifier 3082 when a radioactive neutralizer (Model 3077 or 3077A) is installed.
  • Page 191 Table B-1 Midpoint Mobilities, Midpoint Particle Diameters, and Fraction of Total Particle Concentration that Carries –6 to +6 Elementary Charges as a Function of Mobility. Calculated with equations B-2 and B-3 and coefficients given in Table B-2. Theory of Operation...
  • Page 192 = 1.380658E-23 J/K (for air) = Temperature [K] = number of elementary charge units = ion mobility ratio = 0.875 (Wiedensohler) for Neutralizers 3077 and 3077A = 0.975 (Knobel et al.) for Neutralizer 3088 B-10 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 193: Particle Mobility Theory

    If a soft X-ray Neutralizer (Model 3088) is installed in the Classifier 3082, the same equations (B-2 and B-3) are used to calculate the charge fractions. The coefficients and the ion mobility ratio differ in this case (see above and Table B-3).
  • Page 194 The following set of reference values (from ISO 15900, taken from Kim et al., 2005) is used as default reference values for air in the Electrostatic Classifier Model 3082 and the Aerosol Instrument Manager Software Model 3938: Reference Temperature = 296.15 K...
  • Page 195 The range of particle diameters removed from the Electrostatic Classifier not only depends on particle electrical mobility. Knutson [1975] determined the relationship between the particle electrical mobility and the Classifier parameters. The relationship is given in equation B-5:   ...

  • Page 196: Collector Rod Voltage As A Function Of Particle Diameter For Normal Operating Conditions Of The Long Dma [Agarwal And Sem, 1978

    50 nm. For the more comprehensive formulas, refer to work by Stoltzenburg [1988]. Once the particles are classified according to electrical mobility, their concentration is measured by a CPC or Electrometer. B-14 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 197: Smps Spectrometer Measurement Theory

     Equation B-9 While running a scan, the Electrostatic Classifier Model 3082 records the number of counted particles C in time intervals Δt of 20 ms (or with a sampling frequency of 50 Hz). The time series of counted particles C for all time intervals i sampled in a scan –...
  • Page 198 Raw particle counts C in both the time intervals i and the size bins j can be analyzed by importing measurement data – including raw data – sampled with Model 3082 in SMPS mode into Aerosol Instrument Manager software. The raw particle counts C...

  • Page 199: Multiple Charge Correction

    M u l t i p l e C h a r g e C o r r e c t i o n The data inversion described in SMPS Measurement Theory above is based on the assumption that all particles leaving the DMA with the monodisperse flow are singly charged.

  • Page 200: Circular Tube Penetration Efficiency [Gormley And Kennedy (1949

    = Penetration through the bi-polar neutralizer and internal plumbing = Penetration through the tubing to the Differential Mobility Analyzer (DMA) and CPC = Penetration through the DMA = Penetration through the CPC B-18 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 201: Determination Of P

    Diffusion Loss Correction. Determination of P The penetration through the internal passages of the Model 3080 and Model 3082 Classifier (including the Model 3077/3077A neutralizer) was determined experimentally at a variety of flow rates. P is a function of the particle diffusion coefficient and flow rate.

  • Page 202: Determination Of P

    Aerosol inlet hose to nano DMA (P 0.20 m DMA outlet hose to CPC (P 0.25 m Long DMA 3081A (P 9.1 m Nano DMA 3085A (P 4.1 m 1nm-DMA 3086 (P 4.1 m B-20 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 203: Selected References

    Note: All of the experiments were performed using air at Standard Temperature & Pressure (STP) as the working gas. Since diffusion losses are a function of the particle diffusion coefficient D which is a function of the working gas properties, the use of different working gases and/or conditions will result in an error in the calculated diffusion loss.
  • Page 204 Institute of Standards and Technology, 96:147. Knobel, L., Weinhold, K., Gandhi, J., Wiedensohler, A., and Schmid, H.-J. (2013) „Application of a X-ray charger for SMPS measurements“, European Aerosol Conference 2013, Prague, Czech Republic B-22 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 205 Knutson E.O., and K.T. Whitby [1975] “Aerosol Classification by Electric Mobility: Apparatus Theory and Applications,” Journal of Aerosol Science, 6:443. Liu, B.Y.H., and D.Y.H. Pui [1974] “Equilibrium Bipolar Charge Distribution,” Journal of Colloid Interface Science, 49:305. Plomp A. et al. [1982] Proceedings of the 10th Annual Gesellschaft für Aerosolforschung Conference Bologna, Italy.
  • Page 206 “Technical Note: An Approximation of the Bipolar Charge Distribution for Particles in the Submicron Range,” Journal of Aerosol Science, 19:3/387-389. Wiedensohler, A., and H.J. Fissan [1988] “Aerosol Charging in High Purity Gases.” Journal of Aerosol Science, Vol. 19. B-24 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 207: Terminal Communications

    5. Type telnet <IP_ADDRESS> <PORT_NUMBER>. For example, telnet 169.254.94.153 3602. The communications port number is always 3602. 6. You are now connected to the 3082. Type a command such as rdsn (reads serial number) to verify connectivity). To communicate to the instrument using a terminal emulation program such as HyperTerminal, follow these instructions: 1.

  • Page 208: Firmware Commands

    Commands are case insensitive. The backspace character (0x08) deletes previous characters in buffer.  Values enclosed by “<>” indicate ASCII characters/values sent/received. For example, <,> indicates the comma was sent or received via the communications channel. Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 209: Appendix C Computer Interface

    Stops a SMPS spectrometer scan. DOREGSAVE Saves stored parameters. DOSHUTDOWN Shuts down the instrument. DOSAVEDMAEEPROM Saves DMA parameters to EEPROM on bottom of DMA, if 3082- compatible DMA is installed. Read Commands RDSN Read Data Serial Reads the Electrostatic Classifier serial number.
  • Page 210 Set to 0.01874 by default (value for 3081 DMA). Diameter RSCUSTOMDMAOD Read Custom RSCUSTOMDMAOD reads DMA outer diameter of custom DMA, in DMA Outer meters. Set to 0.03922 by default (value for 3081 DMA). Diameter Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 211 Table C-2 Electrostatic Classifier Firmware Commands List (select) Command Title Description RSCUSTOMDMATYPE Read Custom RSCUSTOMDMATYPE reads the custom DMA type to 1 (cylindrical) or DMA Type 2 (radial). Set to 1 by default. RSIMPMN Reads Impactor RSIMPMN returns the Impactor serial number. EEPROM Model Example: RSDMAMN returns 3081A or 3085A Number...
  • Page 212 0 = Detector last calibration < 365 days 1 = Detector last calibration > 365 days 0 = Negative HV only 16-17 1 = Negative and positive HV 18-20 Not used Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 213 Table C-2 Electrostatic Classifier Firmware Commands List (select) Command Title Description RMERRORS Read Classifier RMERRORS returns the classifier errors. Errors Example: RMERRORS returns a 32 bit integer. If the bit is set, there is an error. Bits 0 Impactor delta pressure > 5cm H O but no impactor present Impactor delta pressure <...
  • Page 214 Example: WSDETINFLOW returns values where 0 = low flow and 1 = high flow. WSTUBELENGTH Write Tube WSTUBELENGTH sets the tube length from 0.1 to 100 centimeters Length Between Example: WSTUBELENGTH 25 sets the length to 25 centimeters Classifier and detector Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 215 WSDMALENGTH Write DMA WSDMALENGTH sets DMA length, in meters. Used by inversion Length algorithm. Saves to EEPROM on bottom of 3082-compatible DMA. Should be followed by a DOSAVEDMAEEPROM. Example: WSDMALENGTH 0.44369 sets DMA length to 44.369 cm. WSDMAID Write DMA Inner WSDMAID sets DMA inner diameter, in meters.
  • Page 216 ERROR if syntax or command was invalid For Read or Mode commands, the instrument returns a response of: data or data,data,data if syntax and parameter were valid ERROR if syntax or command was invalid C-10 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...

  • Page 217: Index

    I n d e x butanol safety, vii 0 to 3 percent mismatch between D50(nm) field, 5-21 warning, vii particle diameter, 6-29 data bypass flow, 1-9, 2-30 logging, 5-34 data export, 5-37 data export error messages, 5-38 1nm-DMA, 1-1, 1-6, 1-8, 1-9, (see calibration, 5-39, A-3 data logging error, 6-29 also DMA)
  • Page 218 5-27 high-voltage error message, 5-5 gas tab screen, 5-26 warning, viii wrench icon, 5-5 history, B-1 high-voltage connection, 2-33 Ethernet communication, 2-37 how it works, 1-3 DMA, 2-33 Index-2 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 219 high-voltage power supply, 4-9 logging options, 5-34 mobility high-voltage warning, v long DMA, 1-1, 1-7 bandwidth, B-13 high-voltage warning label, ix accessory kit, 2-3 equation, B-11 histogram data, 5-13 cleaning Dacron screen, 6-18 table, B-9 history, B-1 cleaning electrodes, 6-13 mode of operation, A-3 hydrogen cleaning/replacing screen, 6-18...
  • Page 220 C-3 soft x-ray neutralizer, B-11 service label, ix reader’s comments sheet software setting date and time, 5-28 recommended cleaning solutions, 6-2 license, iv setting gas properties, 5-26 reference flowmeter, 5-43 Index-4 Electrostatic Classifier Model 3082 and SMPS Spectrometer Model 3938...
  • Page 221 2-1, 2-4 upgrading firmware, 6-25 upper flow manifold, 6-11 USB communication, 2-36 USB device not recognized by the 3082, 6-29 USB flash drive not recognized, 6-28 USB port, 4-9, 4-10 user calibration screen, 5-47 user recalibration, 6-25 vacuum grease, 6-6...

  • Page 223: Reader's Comments Sheet

    Please help us improve our manuals by completing and returning this questionnaire to the address listed in the “About This Manual” section. Feel free to attach a separate sheet of comments. Manual Title Electrostatic Classifier Model 3082 / Scanning Mobility Particle Sizer Spectrometer Model 3938 1. Was the manual easy to understand and use?
  • Page 225 TSI Incorporated – Visit our website www.tsi.com for more information. Tel: +1 800 874 2811 India Tel: +91 80 67877200 Tel: +44 149 4 459200 China Tel: +86 10 8219 7688 France Tel: +33 1 41 19 21 99 Singapore Tel: +65 6595 6388 Germany Tel: +49 241 523030...

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