TSI Instruments 3772 Operation And Service Manual
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TSI Instruments 3772 Operation And Service Manual

Condensation particle counter
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CONDENSATION
PARTICLE COUNTER
MODEL 3772/3771
OPERATION AND SERVICE MANUAL
P/N 1980529, REVISION F
APRIL 2015
Model 3772
Model 3771
(discontinued)

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Summary of Contents for TSI Instruments 3772

  • Page 1 CONDENSATION PARTICLE COUNTER MODEL 3772/3771 OPERATION AND SERVICE MANUAL P/N 1980529, REVISION F APRIL 2015 Model 3772 Model 3771 (discontinued)
  • Page 3 Product Overview Unpacking and Setting Up the CPC CONDENSATION Instrument PARTICLE COUNTER Description MODEL 3772/3771 Instrument Operation Technical OPERATION AND SERVICE MANUAL Description Particle Counting Computer Interface and Commands Maintenance and Service Appendixes...
  • Page 4 M a n u a l H i s t o r y The following is a history of the Model 3772/3771 Condensation Particle Counter Operation and Service Manual (Part Number 1980529). Revision Date February 2006 April 2006 April 2007...
  • Page 5 W a r r a n t y Part Number 1980529 / Revision F / April 2015 Copyright ©TSI Incorporated / 2006–2015 / 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 Customer Service department at 1-800-874-2811 (USA) or (651) 490-2811. Scanning Mobility Particle Sizer and SMPS are trademarks of TSI Incorporated. Trademarks Aerosol Instrument Manager is a registered trademark of TSI Incorporated. Microsoft and Windows are registered trademarks of Microsoft Corporation. Model 3772/3771 Condensation Particle Counter...
  • Page 7 L a s e r S a f e t y The Model 3772/3771 CPC is a Class I laser-based instrument. During normal operation, you will not be exposed to laser radiation. However, you must take certain precautions or you may expose yourself to hazardous radiation in the form of intense, focused visible light.
  • Page 8 Warning means that unsafe use of the instrument could result in serious injury to you or cause irrevocable damage to the instrument. Follow the procedures prescribed in this manual to use the instrument safely. viii Model 3772/3771 Condensation Particle Counter...
  • Page 9 Advisory labels and identification labels are attached to the outside of the CPC housing and to the optics on the inside of the instrument. Labels for the Model 3772/3771 CPC are described below: 1. Serial Number label – displayed on the back panel 2.
  • Page 10 9. TSI Address and Service Label – displayed on the back panel 10. Saturator Wick Removal caution label – displayed on the bottom of the enclosure Model 3772/3771 Condensation Particle Counter...

  • Page 11: Table Of Contents

    Apply Power to the CPC ..............2-4 Supply External Vacuum to the CPC ..........2-5 Positioning the CPC ................. 2-5 CHAPTER 3 Instrument Description ............3-1 Model 3772 Front Panel ..............3-1 LCD Display and Keypad ..............3-1 Aerosol Inlet ..................3-2 Status Light ..................3-2 Particle Light ..................
  • Page 12 Warm-up ..................... 4-1 Status Indicator ................... 4-2 Particle Indicator ................. 4-2 Communication ................... 4-2 Model 3772 LCD Display and Keypad ..........4-3 Model 3772 Keypad Navigation ............4-3 Concentration ..................4-4 Total Count Mode (3772 only) ............4-5 User Settings ..................4-5 Data Logging (3772 only) ..............
  • Page 13 Diffusional Thermal CNC ..............5-3 Design of the CPC ................5-5 Sensor ....................5-5 Critical Flow ..................5-7 Counting Efficiency and Response Time of the 3772/3771 CPC ..5-8 CHAPTER 6 Particle Counting ............... 6-1 Optical Detection ................. 6-1 Total Count Accuracy ................6-2 Live-Time Counting ................
  • Page 14 4-1 Model 3772 Display During Warm-Up ..........4-2 4-2 Model 3772 Display After Warm-Up is Completed ......4-2 4-3 Model 3772 Front Panel LCD Display and Keypad ......4-3 4-4 Total Count Mode Data Screen ............4-5 4-5 Initial Total Mode Data Screen ............4-5 4-6 User Settings Display ................
  • Page 15 2-2 Model 3771 CPC Packing List ............2-2 6-1 Coincidence Levels Based on 0.35 µsec Pulse Width ...... 6-3 7-1 Signal Connections for RS-232 Configurations ........ 7-7 8-1 3772/3771 CPC Maintenance and Replacement Kits ....... 8-2 8-2 Troubleshooting ................8-15 A-1 Model 3772/3771 CPC Specifications ..........A-2...
  • Page 16 (This page intentionally left blank) Model 3772/3771 Condensation Particle Counter...

  • Page 17: Organization

    A b o u t T h i s M a n u a l P u r p o s e This is an operation and service manual for the Model 3772/3771 Condensation Particle Counter (CPC). O r g a n i z a t i o n The following is a guide to the organization of this manual: ...

  • Page 18: Related Product Literature

    1930013) TSI Incorporated This manual contains operating instructions for the Model 376060 Particle Size Selector, an accessory for the Model 3772, 3771, and 3781 CPCs. The Model 376060 is a separating device that removes small particles from an aerosol while passing larger particles.

  • Page 19: Submitting Comments

    S u b m i t t i n g C o m m e n t s TSI values your comments and suggestions on this manual. Please use the comment sheet on the last page of this manual to send us your opinion on the manual’s usability, to suggest specific improvements, or to report any technical errors.
  • Page 20 (This page intentionally left blank) Model 3772/3771 Condensation Particle Counter...

  • Page 21: Product Description

    The Model 3772 CPC is also compatible with TSI Scanning Mobility Particle Sizer (SMPS spectrometers for particle size distribution measurements. The successor to the Model 3010, 3760A, and 3762 CPCs, the Model 3772 and 3771 CPCs offer many new features and improvements:  3 ...

  • Page 22: How It Works

    The Model 3772/3771 CPC detects particles as small as 10 nanometer in diameter and employs single-particle-count-mode operation to measure concentrations up to 10 particles per cubic centimeter.
  • Page 23 An internal microprocessor is used for instrument control and data processing. Model 3772 CPC has a two-line LCD display which presents real-time number concentration, totalizer function, and enables easy-to-use menus for control operation functions and presents instrument status information and user settings.
  • Page 24 (This page intentionally left blank) Model 3772/3771 Condensation Particle Counter...

  • Page 25: Packing List

    Use the information in this chapter to unpack the Model 3772/3771 Condensation Particle Counter (CPC) and set it up. P a c k i n g L i s t Tables 2-1 and 2-2 show the components shipped with the Model 3772 and 3771 CPCs. Table 2-1...

  • Page 26: Unpacking

    Chapter U n p a c k i n g The Model 3772/3771 CPC comes fully assembled with protective coverings on the inlet sample port, exit ports, and analog connectors. The CPC comes packaged with the accessory kit. Use the packing list (Table 2-1 or Table 2-2) to make certain that there are no missing components.

  • Page 27: Setting Up

    S e t t i n g U p This section contains instructions for setting up the Model 3772/3771 CPC. Follow the instructions in the order given. Remove Protective Caps Remove all protective caps from the inlet sample port and exit flow ports at the back of the instrument, also remove covers from the BNC connectors.

  • Page 28: Filling The Fill Bottle With Butanol

    The instrument begins a warm-up sequence which typically lasts ten minutes at room temperature. On the 3772, a ten-minute countdown is displayed on the front panel. Particle concentration will not be accurately measured during warm-up. After warm-up completes, the fluid begins to fill the internal butanol reservoir in the saturator.

  • Page 29: Supply External Vacuum To The Cpc

    Supply External Vacuum to the CPC An external vacuum port is located in the lower right-hand corner of the CPC back panel. An external vacuum must be connected to this port before the CPC can count particles. Vacuum source, either a central building vacuum or a stand-alone vacuum source (e.g., TSI Model 3032 Vacuum Pump), should provide at least 60 kPa (18 in.
  • Page 30 (This page intentionally left blank) Model 3772/3771 Condensation Particle Counter...

  • Page 31: Model 3772 Front Panel

    M o d e l 3 7 7 2 F r o n t P a n e l The main components of the 3772 front panel include the two-line LCD display, six-key push button keypad, flash memory card slot, aerosol inlet, two LED indicator lights (particle and status).

  • Page 32: Aerosol Inlet

    (>10 counts per second) the light appears continuously on. Flash Memory Card Slot The Model 3772 CPC provides storage of particle concentration data using a standard flash memory card. A flash memory card is included. Refer to Using the Flash Memory Card in Chapter 4 for more on how to use the Flash Memory Card.

  • Page 33: Model 3771 Front Panel

    M o d e l 3 7 7 2 / 3 7 7 1 B a c k P a n e l As shown in Figure 3-3, the back panel of the 3772/3771 CPC has power and data connections, analog input/output connections, external vacuum port, butanol fill and drain ports, and cooling fan.

  • Page 34: Rs-232 Serial Connections

    Back Panel of the Model 3772/3771 CPC RS-232 Serial Connections The Model 3772/3771 CPC provides two standard A-pin RS-232 serial ports that allow communication between a computer and the CPC. Serial commands are sent to and from the computer to monitor instrument status...

  • Page 35: Analog Inputs

    1 and Analog Input 2. The input voltage range for these ports is 0 to 10 volts. On the 3772 the analog voltages can be displayed on the LCD display and saved to the removable Flash Memory Card or a computer.

  • Page 36: Ethernet Communication Port

    Sample Digital Pulse from Pulse Output Port at the Back Panel of the CPC Ethernet Communication Port Instrument status including particle concentration of the Model 3772/3771 CPC can be monitored remotely from a local area network or over the internet using the Ethernet communication port. Ethernet communications “Computer Interfaces and...

  • Page 37: Drain Port

    CPC. It is secured to the chassis with four screws on the bottom and two on the top and it can be removed for access to the interior of the Model 3772/3771 CPC. Refer to Chapter 8 for details.

  • Page 38: Internal Instrument Components

    Internal Components of the Model 3772/3771 CPC Water Removal Pump The Model 3772/3771 CPC uses a micro-flow Water Removal Pump to remove condensate from the condenser. The Water Removal Pump draws condensed butanol and water from the condensate collection reservoir.

  • Page 39: Filters

    ON and the level sensor indicates a low butanol level in the liquid reservoir. When the butanol fill bottle is connected, butanol flows into the reservoir until the level sensor indicates a full state. On the 3772, the drain valve is activated through the front panel or through serial command. On the 3771, the drain valve is activated through serial command.

  • Page 40: Basic Instrument Functions

    This section describes basic instrument functions. Concentration Measurement Particle concentration is presented as particles per cubic centimeter (p/cc). For the 3772, the particle concentration is displayed on the front panel LCD in numeric form. For both CPCs, data is collected using the Aerosol ®...

  • Page 41: Total Count Mode (3772 Only)

    Chapter Internal Data Logging (3772 only) A removable Flash Memory Card can be inserted in the slot on the 3772 front panel to store data including particle concentration and analog input data. Data can then be transferred to a computer for further data processing.

  • Page 42: Flow Rate Control

    Inlet Pressure is accessible through firmware commands on both 3772 and 3771 CPCs and it is also viewable via the Status display screen for the 3772. Refer to Chapter 4 for more details.

  • Page 43: Operating Precautions

    Under extremes in ambient temperature, it may take considerably longer for the instrument to warm-up. On the 3772 front panel display, a countdown is also displayed during the warm-up time, as shown in Figure 4-1.

  • Page 44: Status Indicator

    Model 3772 Display During Warm-Up When warm-up is complete, the concentration is automatically displayed for the 3772 as shown in Figure 4-2. The concentration can also be displayed before the warm-up is complete by pressing the ESC key any time.

  • Page 45: Model 3772 Lcd Display And Keypad

    Model 3772 LCD Display and Keypad In addition to firmware communication, Model 3772 presents measurement data, instrument status, and user settings on a 2-line, 16-character, alphanumeric LCD display. You can navigate the menu options using the six-button keypad. The display and keypad are shown in Figure 4-3.

  • Page 46: Concentration

    C o n c e n t r a t i o n The CPC measures aerosol concentration in particles per cubic centimeter. The 3772 displays a Concentration screen as shown in Figure 4-3. This is the default display. Pressing ESC twice from any other screen returns the display to Concentration screen.

  • Page 47: Total Count Mode (3772 Only)

    Chapter 7 Appendix B for information on firmware commands. On the 3772, User Settings is also accessible from the front panel display. It is a primary function accessible from the default Concentration screen by pressing the up arrow once. The screen appears as in Figure 4-6.

  • Page 48: Data Logging (3772 Only)

    Water Removal The Water Removal option provides ON/OFF control for the water removal feature of the CPC. The default setting is “OFF.” On the 3772 it can be set from the Water Removal option in the submenu of User Settings. Pressing...

  • Page 49: Totalizer Time (3772 Only)

    Auto-Fill to OFF. Auto-Fill can be turned back on by using the Auto- Fill setting or by restarting the CPC. On the 3772, an Auto Fill option is available in the User Setting submenu. Pressing the left or right arrow will toggle Auto-Fill ON or OFF.

  • Page 50: Data Averaging (3772 Only)

    Appendix B for further information on firmware commands. On the 3772, the parameters are also available from the Status menu. To access the Status menu on 3772, start at the default Concentration screen and press the up arrow twice. The Status screen appears as shown in Figure 4-7.

  • Page 51: Saturator Temp (Temperature)

    screen as shown in Figure 4-7. If any of the status parameters deviates from the normal condition, the status light is off and there are two exclamation marks around the parameter: one before and one after, as shown in Figure 4-8. Figure 4-7 Status Display Figure 4-8...

  • Page 52: Orifice Pressure

    When there is not a flash memory card, REMOVED is indicated. See more details below. USB Status When the USB port on the back panel of the 3772/3771 CPC is connected, the status indicates CONNECTED. The status indicates DISCONNECTED when there is no connection to the USB port.

  • Page 53: Firmware Version

    Flash Memory Card Format The data card supplied with Model 3772 CPC is formatted as per FAT32 file system. This ensures data is logged and saved properly. Should you use another external data card, make sure that you reformat the card to the FAT32 file system before logging data.

  • Page 54: Reformatting The Flash Memory Card

    7. You can check the format type of the flash memory card at any time by ® ® right clicking on the drive letter in Microsoft Internet Explorer browser. Select Format and look under File System. Figure 4-9 Reformatting the Flash Memory Card 4-12 Model 3772/3771 Condensation Particle Counter...

  • Page 55: Aerosol Instrument Manager Software

    M o v i n g a n d S h i p p i n g t h e C P C Make sure the Model 3772/3771 CPC is turned off and remains upright while moving the instrument. There is no need to drain the CPC before moving it.
  • Page 56 (This page intentionally left blank) 4-14 Model 3772/3771 Condensation Particle Counter...

  • Page 57: Theory

    T e c h n i c a l D e s c r i p t i o n The Model 3772/3771 CPC is a continuous-flow condensation particle counter that detects particles as small as 10 nanometers (50% detection efficiency) in diameter.

  • Page 58: History

    (CNC). CNC technology uses three techniques to cool and supersaturate the condensing vapor: adiabatic expansion, two-flow mixing, and diffusional thermal cooling. The Model 3772/3771 CPC uses the latter. Adiabatic Expansion CNC The first CNC was developed over a century ago by John Aitken [1888].

  • Page 59: Two-Flow Mixing Cnc

    Model 3760, 3762, and 3010 was introduced in early 90s and was replaced by Model 3772/3771 in 2005. The 3772/3771 CPC works only in the single count mode at relatively high aerosol flow rates of 1.0 and 0.6 L/min respectively.
  • Page 60 10 nm. It uses isopropyl alcohol as the working fluid. Currently, five CPCs (Models 3772, 3775, 3776, 3785, and 3786) are also commonly used with submicron size-distribution measurement systems such as the Scanning Mobility Particle Sizer...

  • Page 61: Design Of The Cpc

    The surface temperature of the optics housing is maintained at a higher level than the saturator to avoid condensation on the lens surfaces. The Model 3772/3771 CPC operates in single particle count mode up to particles/cm . Rather than simply counting individual electrical pulses...

  • Page 62: Flow Schematic Of The Model 3772/3771 Cpc

    Figure 5-1 Flow Schematic of the Model 3772/3771 CPC Model 3775 Condensation Particle Counter...

  • Page 63: Critical Flow

    Values for pressures impacting CPC flow can be obtained using firmware commands for both 3772 and 3771 CPCs. They are also found on the Status menu on the front panel display for 3772. These pressures are identified as the Ambient pressure, the Orifice pressure, and the Nozzle pressure.

  • Page 64: Counting Efficiency And Response Time Of The 3772/3771 Cpc

    CPC can detect. This measurement provides no size differentiation and it is not corrected using the CPC counting efficiency curve. When the 3772 CPC is used as part of a Scanning Mobility Particle Sizer (TSI Model 3936 SMPS), the counting efficiency curve is used to correct particle count data to provide particle size distribution.

  • Page 65: Response Time Of 3772/3771 Cpc

    Figure 5-3 Response Time of 3772/3771 CPC Technical Description...
  • Page 66 (This page intentionally left blank) 5-10 Model 3775 Condensation Particle Counter...

  • Page 67: Chapter 6 Particle Counting

    This chapter discusses specific aspects of particle counting and particle count measurements performed using the Model 3772/3771 Condensation Particle Counter (CPC). The Model 3772 CPC has two modes for particle counting:  Concentration mode, where data is presented as particle concentration in p/cc, updated each second on the display (the maximum time resolution is tenth of a second).

  • Page 68: Total Count Accuracy

    The particle concentration is then calculated by number counted particles   accumulate live time aerosol flow rate This option can be turned off by firmware command “SCC,0”. Model 3772/3771 Condensation Particle Counter...

  • Page 69: Coincidence Correction For Pulse Output

    C a u t i o n At concentrations above 10,000, two exclamation marks appear at the sides of the concentration reading on the front panel of the 3772. If this occurs, the number of particles shown on the display could be lower than the actual concentration.

  • Page 70: Particle Size Selector

    P a r t i c l e S i z e S e l e c t o r The particle size selector (Model 376060 PSS) is an accessory (not included) to the Model 3772/3771 CPC to let you choose any of 11 cutoff sizes between 0.010 and 0.122 micrometer. The PSS uses a series of fine- mesh screens to remove small particles by diffusional capture.

  • Page 71: Computer Interface

    This chapter provides computer interface and communications information for the Model 3772/3771 Condensation Particle Counter (CPC). Information on the Flash Memory Card for the 3772 is also provided. C o m p u t e r I n t e r f a c e This section includes descriptions on USB, Ethernet connections, RS-232, and the Flash Memory Card (3772 only).

  • Page 72: Digi Device Discovery Screen

    If needed, the MAC address can be located on the back of the instrument or in this pop-up window. Fill in the appropriate information and click Save. ® Windows is a registered trademark of Microsoft Corporation. Model 3772/3771 Condensation Particle Counter...

  • Page 73: Configure Network Settings Screen

    Figure 7-2 Configure Network Settings Screen 5. Close the device discovery program and restart the CPC. It takes about a minute for the Ethernet to initialize. 6. If the CPC is in the same subnet as the computer, start the device discovery program Discovery.exe and click on Open web interface.

  • Page 74: Main Screen Html Page

    7. From the web interface of the device discovery program or the web browser, you can monitor the status of the CPC. Figure 7-4 Main Screen HTML Page Model 3772/3771 Condensation Particle Counter...

  • Page 75: Flash Memory Card Specification (3772 Only)

    A file is created on the Flash Memory Card when the Data Logging option is turned ON from the front panel of the 3772. Each file will contain one hour of data, unless the run is stopped early with the STOP option. See...

  • Page 76: Rs-232 Serial Communications

    RS-232-type devices. RS-232 is a popular communications standard supported by many mainframe computers and most personal computers. The Model 3772/3771 CPC has two A-pin, D-type subminiature connectors on the back panel labeled Serial 1 and Serial 2. Figure 7-5 shows the connector pins on the serial ports;...

  • Page 77: Commands

    Table 7-1 Signal Connections for RS-232 Configurations Pin Number RS-232 Signal Transmit Output Receive Input (Reserved) — — — — An external computer is connected to Serial 1 for basic instrument ® communications and when Aerosol Instrument Manager software is used. Serial 2 is used for attaching another instrument.
  • Page 78 ASCII text commands can be used. A ® terminal program such as “HyperTerminal” (supplied with Windows ) is appropriate. Connect to Serial 1 of the Model 3772/3771 CPC and perform the following steps: 1. Open the HyperTerminal program by selecting: Start|Programs|Accessories|Communications| HyperTerminal.
  • Page 79 Figure 7-6 Connection Description Screen 3. Enter the communications (COM) port. Figure 7-7 Connect To Dialog Box 4. Enter the port settings described below and click OK. Computer Interface and Commands...
  • Page 80 Figure 7-8 Port Settings Dialog Box 5. Under the settings tab, pick the ASCII Setup button and check the boxes shown below. Figure 7-9 ASCII Setup Dialog Box 7-10 Model 3772/3771 Condensation Particle Counter...
  • Page 81 6. Now select File|Save As and save the file to the desktop for easy access. 7. Close the program and start it again from the desktop. It should automatically open a connection to the instrument. 8. Type in firmware commands to communicate with the CPC. A list of firmware commands can be obtained using the HELP commands or from Appendix...
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  • Page 83: Chapter 8 Maintenance And Service

    Static preventative measures should be observed when handling any printed circuit board connectors. Regular maintenance of the Model 3772/3771 Condensation Particle Counter (CPC) will help ensure years of useful operation. The frequency of service depends on the frequency of use and the cleanliness of the air measured.

  • Page 84: Replacement Parts Kits

    TSI to keep your CPC operating for many years. Parts are available in kits listed below. Please contact your TSI representative for details and purchase of these items. Table 8-1 3772/3771 CPC Maintenance and Replacement Kits TSI Part No. Name Description...
  • Page 85 TSI Part No. Name Description Fill/Drain Bottle Kit, Fill and drain 1031548 CPC 3772 and bottles, bracket, 3771 vacuum drain cap, tubing and fittings. 1031492 Kit, Charcoal Filter, Five (5) large large, CPC charcoal filters used to remove butanol from...

  • Page 86: Draining Butanol From The Butanol Reservoir

    2. Place the drain bottle on the floor. 3. The Drain can be initiated by using the “SDRAIN” firmware command on 3771 or by using the User Settings menu on the 3772. Detailed instructions for initiating the manual Drain for the 3772 are provided in Chapter 4.

  • Page 87: Changing The Filters

    C a u t i o n Whenever the instrument is turned on, the Auto-Fill is activated. Do not run the instrument with the saturator base and wick removed to prevent spilling butanol from the butanol reservoir. C h a n g i n g t h e F i l t e r s The CPCs use three liquid filters.

  • Page 88: Micro Pump Filter

    4. Remove the tubing from the barbed fittings at the back and front of the filter. 5. Replace the filter with the 25 µm filter (P/N 1500192) found in the accessory kit. This filter has no preferred direction. MicroPump Filter Figure 8-3 Replacing the Micro Pump Filter Model 3772/3771 Condensation Particle Counter...

  • Page 89: Removing And Installing The Saturator Wick

    R e m o v i n g a n d I n s t a l l i n g t h e S a t u r a t o r W i c k C a u t i o n Removing the saturator wick will cause butanol (butyl-alcohol) vapors to diffuse into the work space.
  • Page 90 O-ring on the saturator base becomes lost or damaged. Figure 8-7 shows the two outer O-rings (P/N 2501172, 2501569) and Figure 8-8 shows the two inner O-rings (P/N 2500021). Model 3772/3771 Condensation Particle Counter...

  • Page 91: O-Rings On Saturator Base (P/N 2501172 And 2501569)

    Figure 8-7 O-Rings on Saturator Base (P/N 2501172 and 2501569) Figure 8-8 O-Rings on Saturator Base (P/N 2500021) 12. Slide the wick back onto the saturator base using the two dowel pins to key it. This will keep the holes aligned as the wick is replaced in the CPC.

  • Page 92: Verifying Flow Rate

    3772 or through serial command for both 3772 and 3771. If you suspect a clogged orifice or nozzle, contact TSI for instructions.

  • Page 93: Correcting Flooded Optics

    C o r r e c t i n g F l o o d e d O p t i c s Due to the nature of the reservoir in the CPC, the inlet tube must not be plugged for more than a couple seconds when the instrument is in operation.

  • Page 94: Viewing Analog Pulses

    50-ohm terminated. When viewing the signal on the scope, the signal height should be scaled down by a factor of 10. For a typical pulse of 3 volts, the scope will read only 300 mV. 8-12 Model 3772/3771 Condensation Particle Counter...

  • Page 95: Connecting Smc Plug To Detector Board

    Connecting SMC Plug to Detector Board 4. Apply power to the CPC. A typical analog pulse trace for 3772/3771 CPC is shown in Figure 8-10. The minimum pulse amplitude is about 1 volt (100 mV on the oscilloscope) and the pulse width is about 0.30 microseconds. The pulse amplitude may range as high as 3.5 volts (350 mV on the...

  • Page 96: Calibration Reminder

    These reminders come in two forms: a message appears on the screen (3772 only) and an error bit is set which is seen with the RIE firmware command. The...

  • Page 97: Error Messages And Troubleshooting

    Status parameters can provide information for troubleshooting the error. On the 3772/3771, the RIE firmware command will list instrument errors. On the 3772, in addition, refer to the Status Screen for status errors (see Figure 4-8). An exclamation mark will appear next to the parameter which is out of range.
  • Page 98 Flooded instrument Butanol liquid is present in the Although the 3772 and 3771 CPCs have been designed instrument optics causing a to resist flooding, it can occur if the instrument is shipped variety of problems including without properly drying or removing a wet wick. Flooding...

  • Page 99: 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 100: Returning The Cpc For Service

    CPC. The packaging material must be sufficient to completely protect the integrity of the CPC when dropped from a height of 30 inches (76 cm). 8-18 Model 3772/3771 Condensation Particle Counter...

  • Page 101: Appendix A Specifications

    A P P E N D I X A S p e c i f i c a t i o n s Table A-1 contains the specifications for the Model 3772/3771 Condensation Particle Counter (CPC). These specifications are subject to change without notice.
  • Page 102 BNC connector, 0 to 10 volts, user-selectable function output (linear concentration, also DMA voltage control for 3772, DMA voltage control function is not available for Model 3771 CPC) Analog ..........BNC connector, TTL level pulse, 50-ohm termination, nominally 350 nanoseconds wide Software ...........

  • Page 103: Read Commands

    A P P E N D I X B F i r m w a r e C o m m a n d s The firmware commands are be divided into the following categories:  READ Commands  SET Commands ...
  • Page 104 Www Mmm dd hh:mm:ss yyyy where Www is the weekday Mmm is the month in letters dd is the day of the month hh:mm:ss is the time yyyy is the year Example: Mon Jun 11 11:05:08 2006 Model 3772/3771 Condensation Particle Counter...
  • Page 105 Read the instrument errors Returns: 16-bit integer in hexadecimal format. The parameter is in error if the bit is set. Bit 0x0001 => Saturator Temp Bit 0x0002 => Condenser Temp Bit 0x0004 => Optics Temp Bit 0x0008 => Inlet Flow Rate Bit 0x0010 =>...
  • Page 106 The ADC reading is an integer from 0 to 4095 Example: FULL (2471) Read the model number Returns: 3771, 3772, 3775, 3776, 3790 or 100 Example: 3772 Legacy command to read the liquid level Returns: FULL or NOTFULL Legacy command to read the condenser temperature in...

  • Page 107: Set Commands

    RCOUNT2 Reads the 1 second uncorrected counts buffer Example: S E T C o m m a n d s Set analog output full scale voltage Params 1 => 0 - 1 Volt 2 => 0 - 2 Volt 3 => 0 - 5 Volt 4 =>...
  • Page 108 The analog output is 0 to 10V. Params: 0 => Off 1 => 1E1 2 => 1E2 3 => 1E3 4 => 1E4 5 => 1E5 (CPC100 only) Example: SAO,4 (A concentration reading of 1E4 will equal 10V) Model 3772/3771 Condensation Particle Counter...
  • Page 109 Turn on/off auto fill Params: 0 => Off 1 => On Example: SFILL,1 (turns on auto fill) SDRAIN Turn drain on/off for Models 3771, 3772, 3790, CPC100 Params: 0 => Off 1 => On Example: SDRAIN,1 (turns drain on) Firmware Commands...

  • Page 110: Misc (Miscellaneous) Commands

    => 10–6000 (1–600 seconds) down => 10–6000 (1–600 seconds) Example: ZT0,600,100 Note: This command does not need a comma separating the first parameter from the command Scan using up direction instead of down (except 3771) Model 3772/3771 Condensation Particle Counter...

  • Page 111: Help Commands

    Set the scan voltages (except 3771) Params: start => 10–10000 Volts end => 10–10000 Volts Example: ZV10,10000 Note: This command does not need a comma separating the first parameter from the command Data after the “:” will be transmitted to serial port 2 COM2 COM2:RFV (“RFV”...
  • Page 112 (This page intentionally left blank) B-10 Model 3772/3771 Condensation Particle Counter...
  • Page 113 ”Performance of the TSI Model 3010 Condensation Particle Counter,” paper presented at the American Association for Aerosol Research Conference, San Francisco, California, October 1992. (TSI paper A83) * Paper refers to TSI Model 3010 CPC, a predecessor of the Model 3772...
  • Page 114 Nolan, P.J. and L.W. Pollack [1946] “The Calibration of a Photoelectric Nucleus Counter” Proc. Royal Irish Acad., A9, pp. 9–31 Nolan, P.J. [1972] “The Photoelectric Nucleus Counter” Sci. Proc. Royal Dublin Soc., Series A, Vol. 4, pp. 161–180 Model 3772/3771 Condensation Particle Counter...

  • Page 115: Appendix C References

    Pollak, L.W. and A.L. Metnieks [1959] “New Calibration of Photoelectric Nucleus Counters” Geofis. Pura Appl., Vol. 43, pp. 285–301 Quant, F. R., R. Caldow, G.J. Sem, T.J. Addison [1992] “Performance of Condensation Particle Counters with Three Continuous- Flow Designs,” presented as a poster paper at the European Aerosol Conference, Oxford England, Sept.
  • Page 116 (This page intentionally left blank) Model 3772/3771 Condensation Particle Counter...

  • Page 117: Index

    Model 3762, 5-3 drain port, 3-3, 3-7, 8-7 drain port, 3-7 Model 3771, 5-3 drain valve, 3-9 draining, 8-4 Model 3772, 5-3 vapor, 3-6 Model 3775, 5-4 warning, viii Model 3776, 5-4 electrical shock caution label, ix butanol consumption, 4-6...
  • Page 118 Model 376061 Diffusion Screen, 6-4 Model 3760 Condensation Particle live-time counting, 6-2 Model 3760A Condensation Particle Counter, 5-3 Counter, 3-11 Model 3762 Condensation Particle Model 3760A Condensation Particle Counter, 5-3 main pc board, 3-9, 3-10 Counter, 1-1 Index-2 Model 3772/3771 Condensation Particle Counter...
  • Page 119 5-1, 5-2, 5-4 Counter orifice pressure, 4-10, 5-7 saturator, 2-4, 5-5 history, 5-2 O-rings on saturator base, 8-9 saturator base, 3-7 Model 3772 Condensation Particle overvoltage degree, A-1 saturator temperature, 4-9 Counter, 5-4 P–Q saturator wick history, 5-2...
  • Page 120 Model 3032, 2-5, 5-7 WCPC, 5-3, 5-4 USB, 1-1, 7-1 Model 3033, 5-7 WEEE directive label, x communication port, 3-3 vacuum source, 2-5 weight, A-2 USB status, 4-10 verifying flow rate, 8-10 working fluid, 2-4, A-1 Index-4 Model 3772/3771 Condensation Particle Counter...

  • Page 121: 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 Model 3772/3771 Condensation Particle Counter P/N 1980529 1. Was the manual easy to understand and use? Please identify any problem area(s) _________________________________________________________...
  • Page 123 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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