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TSI Instruments 3022A Instruction Manual

TSI Instruments 3022A Instruction Manual

Condensation particle counter
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P a r t i c l e I n s t r u m e n t s
Model 3022A
Condensation Particle
Counter
Instruction Manual
P/N 1933763, Revision I
August 2002

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  • Page 1 P a r t i c l e I n s t r u m e n t s Model 3022A Condensation Particle Counter Instruction Manual P/N 1933763, Revision I August 2002...
  • Page 3 Introduction Unpacking and Model 3022A Setting Up Condensation Particle Counter Operation and Display Instruction Manual Configuring the CPC Technical Description Particle Counting Calibrating the CPC Computer Interface and Commands Maintenance and Service Applications Appendixes...
  • Page 4 M a n u a l H i s t o r y The following is a manual history of the Model 3022A Condensation Particle Counter Instruction Manual (Part Number 1933763). Revision Date Revision Date Preliminary October 1992 November 1996...
  • Page 5 Part Number 1933763 / Revision I / August 2002 Copyright ©TSI Incorporated / November 1992–2002 / All rights reserved. Address TSI Incorporated / 500 Cardigan Road / St. Paul, MN 55126 / USA Fax No. 651-490-3824 E-mail Address particle@tsi.com Limitation of Warranty Seller warrants the goods sold hereunder, under normal use and service as and Liability described in the operator's manual, shall be free from defects in workmanship and...
  • Page 6 Model 3022A Condensation Particle Counter...
  • Page 7 L a s e r S a f e t y The Model 3022A Condensation Particle Counter 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 invisible light.
  • Page 8 W A R N I N G 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. Model 3022A Condensation Particle Counter...
  • Page 9 Caution or Warning Symbols The following symbols may accompany cautions and warnings to indicate the nature and consequences of hazards: Warns you that uninsulated voltage within the instrument may have sufficient magnitude to cause electric shock. Therefore, it is dangerous to make any contact with any part inside the instrument. Warns you that the instrument contains a laser and that important information about its safe operation and maintenance is included.
  • Page 10 MADE IN U.S.A. 55126 ® DANGER INVISIBLE LASER RADIATION WHEN OPEN. AVOID DIRECT EXPOSURE TO BEAM. Figure 1 Advisory Labels: (a) identification label (on the back panel); (b) warning label (on the optics housing) viii Model 3022A Condensation Particle Counter...

  • Page 11: Table Of Contents

    C o n t e n t s Manual History................ii Safety ................... v Laser Safety ................v Chemical Safety ............... v Description of Safety Labels ............ vi Caution ................vi Warning ................vi Caution or Warning Symbols..........vii Labels ..................viii About This Manual ..............xv Purpose...................xv Organization ................xv...
  • Page 12 Moving the Counter............3-11 Drying the Counter ............3-11 First Method..............3-12 Second Method.............. 3-12 4 Configuring the CPC ............4-1 Enabling the Configuration Mode ..........4-1 Running the Configuration Function ........4-3 Flow Calibration..............4-6 Condenser Flow Calibration ..........4-7 Model 3022A Condensation Particle Counter...
  • Page 13 5 Technical Description ............5-1 Theory...................5-1 Historical Notes..............5-2 Adiabatic Expansion CNC ..........5-3 Two-Flow Mixing CNC ............5-3 Diffusional Thermal CNC............5-3 Design of the CPC ..............5-4 Sensor................5-5 Microprocessor..............5-7 Flow System................5-7 High Flow................5-8 Low Flow ................5-8 Filters and Restrictors ............5-9 Flowmeter ................5-9 Pump ................5-10 6 Particle Counting..............6-1 Optical Detection ..............6-1 Single-Particle, Realtime Counting ........6-1...
  • Page 14 F i g u r e s Advisory Labels: (a) identification label (on the back panel); (b) warning label (on the optics housing) .......viii 1-1 TSI Model 3022A Condensation Particle Counter....1-1 2-1 Power Entry, Fuse, and Voltage Module......2-3 2-2 Orientation of the Voltage Selector Card ......2-3 2-3 North American–Fusing Arrangement .........2-5...
  • Page 15 9-3 Checking for Leaks With a Vacuum ........9-5 9-4 Checking for Leaks With Compressed Air ......9-6 9-5 Model 3022A CPC Screw Locations........9-8 9-6 EPROM Location on the Model 3022A CPC Display Board ................9-8 10-1 CPC, Diffusion, Battery and Switching Valve System for Measuring the Size Distribution of Aerosols Below 0.2 Micrometer in Diameter ...........
  • Page 16 9-1 Troubleshooting CPC Problems......... 9-10 B-1 Specifications of the Model 3022A CPC ......B-1 Model 3022A Condensation Particle Counter...

  • Page 17: About This Manual

    The ten chapters of this manual describe the CPC and explain how to set up, operate, and maintain it. # Chapter 1: Introduction This chapter serves as an introduction to the Model 3022A Condensation Particle Counter. # Chapter 2: Unpacking and Setting Up This chapter describes the step-by-step procedure for getting the CPC ready to operate.
  • Page 18 In addition, a general list of references pertaining to condensation nucleus or particle counters is included. # Appendix B: Specifications This appendix lists the specifications of the Model 3022A Condensation Particle Counter. # Appendix C: Technical Papers This appendix includes two technical papers.

  • Page 19: Related Product Literature

    (part number 1930013) TSI Incorporated This manual contains operating instructions for the Model 376060 Particle Size Selector, an accessory for the Model 3022A CPC. The Model 376060 is a separating device that removes small particles from an aerosol while passing larger particles.
  • Page 20 Model 3022A Condensation Particle Counter...

  • Page 21: Chapter S

    Figure 1-1 TSI Model 3022A Condensation Particle Counter The Model 3022A offers a laser-diode light source, an internal microprocessor control, the capability of full computer interfacing, a long-life pump, volumetric flow control, and a front panel display of both the concentration and instrument status.

  • Page 22: Features

    # New standard RS-232 connector for IBM-style compatibility. A p p l i c a t i o n s The Model 3022A CPC is a general-purpose instrument that can be used in a wide variety of applications. Typical applications include:...

  • Page 23: Unpacking And Setting Up

    This chapter gives unpacking and setup information for the Model 3022A Condensation Particle Counter (CPC). P a c k i n g L i s t Table 2-1 shows the packing list for the Model 3022A CPC. Table 2-1 Model 3022A CPC Packing List Qty.

  • Page 24: Initial Setup

    BNC connectors. Checking the Line Voltage Configuration The Model 3022A requires 100/120 volts AC at 1.2 amps or 230/240 volts AC at 0.6 amp with 50 to 60 hertz at any of the voltages. Use the information in this section to verify the line voltage configuration and fusing arrangement matches your local line voltages.

  • Page 25: Power Entry, Fuse, And Voltage Module

    Figure 2-1 Power Entry, Fuse, and Voltage Module 3. Grasp the indicator pin and pull the voltage-selector card straight out of the housing (Figure 2-1). 4. Orient the selector card so that the desired voltage is readable at the bottom. 5.

  • Page 26: Changing The Fuse

    7. Replace the cover, making sure that the indicator pin shows the desired voltage. Changing the Fuse 1. Disconnect the power from the Model 3022A and remove the line cord. 2. Lift off the power-entry module on the back panel of the Model 3022A using a small-blade screwdriver or similar tool (Figure 2-1).

  • Page 27: North American-Fusing Arrangement

    Jumper Bar Fuse Block Cover Fuse Figure 2-3 North American–Fusing Arrangement Fuses Fuse Block Jumper Bar Cover Figure 2-4 European–Fusing Arrangement 3. Loosen the screw on the fuse block two turns. 4. Remove the fuse block (Figure 2-5) by sliding it up and away from the screw.

  • Page 28: Mounting The Bottle Bracket

    Liquid Supply connector on the back panel. Both mated fittings are leak-tight when disconnected. Figure 2-6 Mounting the Bottle Bracket: (a) Bottle Bracket; (b) Screw, 8-32 × Phillips Pan- head Lockwasher, #8 Internal Tooth; (c) CPC Back Panel Model 3022A Condensation Particle Counter...

  • Page 29: Filling The Bottle With Fluid

    Filling the Bottle with Fluid Pour the fluid into the fill bottle to at least one-third full. Because of the shut-off fittings, the liquid will not flow into the CPC until the connections are made and the instrument is warmed up. The standard CPC uses butanol as a working fluid.

  • Page 30: Removing The Front Inlet Tube; (A) Pull Inlet Tube Out

    Figures 2-8a through 2-8d. Tighten the fittings finger-tight, then ¼-turn with a wrench. For Figures 2-8c and 2-8d: To use the side inlet, install the bottom cover, insert the 2.8-in. insert tube, and then tighten the Swagelok nut. Model 3022A Condensation Particle Counter...
  • Page 31 4. Replace the top and bottom of the cabinet and secure with 12 screws. Figure 2-8a Back Inlet Option for Positioning the Inlet Tube Unpacking and Setting Up...
  • Page 32 Figure 2-8b Front Inlet Option for Positioning the Inlet Tube 2-10 Model 3022A Condensation Particle Counter...
  • Page 33 Figure 2-8c Side Inlet Option for Positioning the Inlet Tube Unpacking and Setting Up 2-11...

  • Page 34: Applying Power To The Cpc

    The front panel now displays the phrase “TSI” and begins a warmup sequence. After warm-up, the fluid begins to fill the internal reservoir in the saturator. The CPC is nearly ready to start making measurements. 2-12 Model 3022A Condensation Particle Counter...

  • Page 35: Operation And Display

    C H A P T E R 3 O p e r a t i o n a n d D i s p l a y This section describes the basic functions of the Model 3022A Condensation Particle Counter (CPC) controls, indicators, and connectors on the front and back panels as well as giving operating specifications and precautions.

  • Page 36: Warmup Mode

    To display the flow value, use the Status button (described below under “Secondary Functions”). Both the flow and a measure of the pump voltage can be monitored with the analog output on the back panel (see Chapter 4). Model 3022A Condensation Particle Counter...

  • Page 37: Display

    Display The button labeled Display allows you to display two types of information: concentration (CONC) and total count (COUNT). Pushing the button toggles between the two types. The concentration value is averaged over a specific period of time according to the magnitude of the concentration. The data is displayed in units of particles/cm .

  • Page 38: Range

    Shift. Status Status displays a set of sensor operating parameters that you can use to check the functioning of the CPC (see Chapter 10). Press the Status button repeatedly to step through the following parameters: Model 3022A Condensation Particle Counter...

  • Page 39: Drain/Fill

    Flow The volumetric flow is measured in units of cm /s. A hat (^) in front of the number indicates that the CPC is in the high-flow mode; an underline (_) in front of the number indicates the low-flow mode (see Chapter 5). The optics temperature should be 1°...

  • Page 40: Flow Hi/Lo

    This keeps the pump running at a high speed to stabilize and smooth the flow through the sensor. Indicator Lights The front panel of the CPC uses these indicator lights—Particle, Flow, Auto, Optics, Condenser, Saturator, Laser, Liquid Level, described below. Model 3022A Condensation Particle Counter...

  • Page 41: Particle

    Particle The amber light next to Particle flashes briefly each time a particle is detected. Flow A green light comes on across from Flow when the flowrate is 5 ±0.5 cm /s. A yellow light comes on above Flow when the flowrate is too high;...

  • Page 42: Back Panel Functions

    Analog Output is a BNC connector that normally transmits a 14-bit signal of 0 to 10 volts (11 volts in Host mode). Use the configuration function to select the voltage you want to output (see Chapter 4). Model 3022A Condensation Particle Counter...

  • Page 43: Mux Output

    Mux Output Mux Output is a BNC connector compatible with TSI’s remote and multiplexer processors. The signal transmitted through the output—one for each detected particle—is a 13-volt, 6.4- microsecond square pulse. The output is valid only for concentrations less than 350 particles per cm [10 million/ft Pulse Output Pulse Output is a BNC connector that transmits a 12-volt square...

  • Page 44: Liquid Drain

    CPC is close to normal conditions. If you are sampling from a closed system, add a pressure-equalizing line from the pump exhaust to the system downstream of the 3-10 Model 3022A Condensation Particle Counter...

  • Page 45: Low Flow Mode

    sample port. Be careful that your sample port does not sample air from the pump exhaust. If you cannot vent the pump exhaust back into the system, you must add a flow restrictor (excess pressure at the inlet) or add an additional vacuum pump (insufficient pressure at the inlet) to the pump exhaust port.

  • Page 46: First Method

    Either ship the instrument without the wick, dry the wick and reinstall it, or else install a new wick. Replace the wick with the cut-away facing downward to clear the liquid level sensor. g. Reassemble the end-plate and inlet tubes. 3-12 Model 3022A Condensation Particle Counter...

  • Page 47: Saturator: (A) Front Of Counter; (B) End Plate With Four Screws

    Figure 3-3 Saturator: (a) Front of Counter; (b) End Plate With Four Screws Operation and Display 3-13...

  • Page 48: Saturator: (A) Front Of Counter; (B) Wick; (C) Fill Sensor

    Figure 3-4 Saturator: (a) Front of Counter; (b) Wick; (c) Fill Sensor; (d) End-Plate (Removed); (e) Inlet Flow; (f) Fluid Line 3-14 Model 3022A Condensation Particle Counter...

  • Page 49: Configuring The Cpc

    C H A P T E R 4 C o n f i g u r i n g t h e C P C This chapter describes how to enter the Configuration mode and select the various microprocessor outputs and controls. It also explains how to calibrate the D/A and A/D converters and the flow meter.

  • Page 50: Setting The Configuration Switch To Enable The Configuration Mode

    Function” in this chapter). Be sure the CPC is fully warmed-up before resetting any calibration points. 5. After configuring the CPC, it is a good idea to set the switch back to the disable position to prevent tampering. 6. Replace the top cover. Model 3022A Condensation Particle Counter...

  • Page 51: Running The Configuration Function

    Running the Configuration Function The configuration process is programmed in the CPC and altered by pressing function buttons in response to questions posed on the display. 1. To enter the configuration mode, press Shift, then press Pump. “Set Up Mode” appears momentarily on the front panel display. A series of questions follows.
  • Page 52 0-11 volt signal that can be set by a [HOST] computer via the RS-232 port. This mode is useful when controlling an instrument such as the Electrostatic Classifier with the 3022A CPC as part of a DMPS or SMPS system. continued...
  • Page 53 Question Answer Explanation The [DET]ector voltage is a measure of the light scattered from particles as detected by the photodetector. The DET should be 0 ± 0.050 volts when no particles are passing through the sensor (either the air is clean or the pump is off).

  • Page 54: Flow Calibration

    These other flows may not be accurate but are used simply to show that the flow is either too high or too low and by an approximate amount. Model 3022A Condensation Particle Counter...

  • Page 55: Condenser Flow Calibration

    When calibrating the flow, chose an external flowmeter that will have a low pressure drop and measure the actual volumetric flow. If you use a mass flowmeter (one calibrated to standard conditions), convert the standard flow to actual flow with the following equation: ...
  • Page 56 Model 3022A Condensation Particle Counter...

  • Page 57: Technical Description

    C H A P T E R 5 T e c h n i c a l D e s c r i p t i o n The Model 3022A is a continuous-flow, condensation particle counter (CPC) capable of detecting particles as small as 0.01 micrometer in diameter.

  • Page 58: Historical Notes

    H i s t o r i c a l N o t e s Historically, the CPC has been called a condensation nucleus counter (CNC). CNC technology uses three techniques to cool and supersaturate the condensing vapor: adiabatic expansion, two-flow mixing, and diffusional thermal cooling. Model 3022A Condensation Particle Counter...

  • Page 59: Adiabatic Expansion Cnc

    Adiabatic Expansion CNC The first CNC was developed over a century ago by John Aitken [1888]. His simple and completely mechanical device cooled water- saturated air by adiabatic expansion using a pump. The droplets were counted as they fell onto a counting grid and a calculation was made to determine the concentration of dust particles in the sample volume.

  • Page 60: Design Of The Cpc

    CNCs (TSI Model 7610 and Model 7620, formerly Model 3760 and Model 3761), U.S. patent no. 4,790,650) and a respirator-fit test CNC (TSI Model 8010). The Model 3022A CPC is patterned after these. Looking at the flow path in the CPC, the highest saturation ratio occurs on the centerline of the flow-stream at some distance down the condensing tube (Stolzenburg [1988]).

  • Page 61: Sensor

    Sensor The sensor itself is made up of a saturator, condenser, and optical detector, as shown in Figure 5-1. The aerosol enters the saturator section and passes through a heated, liquid-soaked wick. The wick dips into the liquid reservoir and continually draws liquid up through the inclined tube.

  • Page 62: Drawing Of The Cpc Sensor

    The DC voltage from the photodetector is calibrated against a known concentration using an electrical mobility technique. For more information, see Chapter 6 and Chapter 7. Figure 5-1 Drawing of the CPC Sensor Model 3022A Condensation Particle Counter...

  • Page 63: Microprocessor

    Microprocessor The CPC incorporates an Intel 80188 microprocessor to control all its functions. The microprocessor uses a 32KB EPROM chip for program memory and an 8KB RAM chip for making calculations and running count buffers. An additional 8KB of EPROM stores nonvolatile information such as the photometric calibration.

  • Page 64: High Flow

    Mobility Particle Sizer (SMPS) system. In the low-flow mode, the three-way valve is open to the flow of makeup air, the bypass flow is shut off. Only 0.3 liter per minute is drawn into the inlet and carried directly into the sensor. Model 3022A Condensation Particle Counter...

  • Page 65: Filters And Restrictors

    The flowmeter and microprocessor control the vacuum pump to maintain the flowrate through the sensor, just as is done in the high-flow mode. The makeup flow is uncontrolled and the magnitude of the flowrate is unimportant. It is important, however, that the pump operate below its maximum 12 volts so that there is some range in the feedback control.

  • Page 66: Pump

    The compact pump is an oil-free rotary pump with eight carbon vanes. It uses a DC motor and is nearly pulsation-free. The components that come in contact with the air are corrosion- resistant materials. 5-10 Model 3022A Condensation Particle Counter...

  • Page 67: Particle Counting

    C H A P T E R 6 P a r t i c l e C o u n t i n g The Model 3022A Condensation Particle Counter (CPC) uses three methods of particle counting for concentration calculations: single- particle, realtime counting;...

  • Page 68: Typical Digital Pulse Trace From The Photodetector

    5 µsec Time: 5 µs per Division Figure 6-1 Typical Digital Pulse Trace From the Photodetector The statistics for a paralyzable counter give the relationship of the measured particle concentration to the true concentration as: exp(QtC Model 3022A Condensation Particle Counter...

  • Page 69: Total Count Accuracy

    where C = actual or true concentration in particles/cm = indicated or measured concentration in particles/cm Q = flowrate at 5.0 cm t = time the counter is disabled for a single particle (approximately 4 µs in the CPC) = the average number of particles that occur during the disabled period t.

  • Page 70: Single-Particle, Live-Time Counting

    , the overall amount of light scattered from the droplets is measured as a DC voltage from the photodetector and then calibrated to a known concentration. The method of calibration is explained in Chapter 7. Model 3022A Condensation Particle Counter...

  • Page 71: Autoranging

    A u t o r a n g i n g Three running-average buffers and one live-time buffer are used to average particle counts. The buffers are updated every second, discarding the oldest 1-second value. There is one buffer for each of four averages: 1, 2, 20, and 200 seconds.
  • Page 72 Model 3022A Condensation Particle Counter...

  • Page 73: Calibrating The Cpc

    C a l i b r a t i n g t h e C P C This chapter gives a description of the calibration methods used by TSI to calibrate the Model 3022A Condensation Particle Counter (CPC). In the realtime and live-time, single-particle-counting modes (below...

  • Page 74: Dilution Bridge Used For High-Concentration Particles

    A and C. This doubles the concentration of the aerosol entering the CPC. Using this procedure, in sequence, the calibration can be carried to any range. The technique has been used successfully by Pollak [1959]. Model 3022A Condensation Particle Counter...

  • Page 75: Computer Interface And Commands

    This section gives the hardware connection information for the Model 3022A CPC and an IBM-compatible computer. Pin Connectors The Model 3022A Condensation Particle Counter (CPC) has one 9-pin, D-type subminiature connector on the back panel labeled COM PORT. An external computer, if used, should be connected to COM PORT (shown in Figure 8-1).

  • Page 76: Baud Rate

    ) in a transmitted HIGH character is always an even number—hence, even parity. In the configuration mode you can select either even parity or no parity. The CPC uses even parity as the default setting. Model 3022A Condensation Particle Counter...

  • Page 77: Computer Commands

    C o m p u t e r C o m m a n d s The commands that are transmitted to the CPC are ASCII strings; they are followed by a carriage return and a line feed. In response to any incorrect or undecipherable transmissions, the CPC transmits the word ERROR followed by a carriage return and line feed.
  • Page 78 FULL Read liquid level status NOTFULL 10.0 Read condenser temperature, °C 35.0 Read saturator temperature, °C 36.0 Read optics temperature, °C 5.01 Read flow, cm continued Model 3022A Condensation Particle Counter...
  • Page 79 The Sensor command sends data on the current saved sensor types (identical to the Model 3701 or 7110). Sensor type 3 is for the Model 3022A CPC or Model 3020 CNC. There are 16 lines total, the last 15 of which are zeros. continued...

  • Page 80: Basic Program: Tsicpc

    The data can be stored on disk or printed on a printer. A computer is not necessary for normal operation of the CPC. Model 3022A Condensation Particle Counter...
  • Page 81 REM ************************************************************************* PROGRAM: TSICPC.BAS VERSION 1.2 8-FEB-1989 THIS PROGRAM IS A TEST PROGRAM FOR THE CPC 3022A. IT PROVIDES THE COMMANDS FOR THE UNIT TO INTERFACE WITH THE COMPUTER. REM ************************************************************************* 28 CLEAR : KEY OFF : WIDTH 80 30 REM 34 OPTION BASE 1 : J =1 : PSIG$ = "OFF"...
  • Page 82 LOCATE 9,15 : PRINT "(maximum is 11000 millivolts)" LOCATE 10,15 : INPUT AVOLT : AV$ = STR$(AVOLT) : AL = LEN(AV$) AV$ = "V" + RIGHT$(AV$,AL-1) PRINT # 3, AV$ : GOSUB 9000 215 RETURN 217 REM Model 3022A Condensation Particle Counter...
  • Page 83 218 REM WRITE MESSAGE TO DISPLAY ON THE FRONT PANEL 219 REM 220 CLS : LOCATE 8,15 : PRINT "ENTER THE MESSAGE TO BE DISPLAY ON THE PANEL" LOCATE 9,15 : PRINT "(maximum # of characters is 12)" LOCATE 10,15 : INPUT D$ : D$ = D$ + " "...
  • Page 84 CLS : LOCATE 5,15 : PRINT "THE LIQUID LEVEL IS "; LIQLEVEL$ 2058 LOCATE 22,15 : PRINT "HIT 'M' TO RETURN TO THE MAIN MENU" 2060 I$ = INKEY$ : IF I$ = "M" OR I$ = "m" THEN RETURN ELSE 2060 8-10 Model 3022A Condensation Particle Counter...
  • Page 85 2062 REM 2996 REM------------------------------------------------------------------------- 2997 REM 2998 REM SUBROUTINE FOR READING THE CONDENSOR TEMPERATURE 2999 REM 3000 PRINT # 3, "R1" 3002 GOSUB 9000 : IF ZZ$ = "" THEN 3002 ELSE 3004 3004 CONDTEMP = VAL(ZZ$) 3006 CLS : LOCATE 5,15 : PRINT "THE CONDENSOR TEMPERATURE IS "; CONDTEMP ; "oC"...
  • Page 86 CLS : LOCATE 5,15 : PRINT "THE 2 SECOND BUFFER IS "; BUF2 7058 LOCATE 22,15 : PRINT "HIT 'M' TO RETURN TO THE MAIN MENU" 7060 I$ = INKEY$ : IF I$ = "M" OR I$ = "m" THEN RETURN ELSE 7060 8-12 Model 3022A Condensation Particle Counter...
  • Page 87 7062 REM------------------------------------------------------------------------- 7996 REM------------------------------------------------------------------------- 7997 REM 7998 REM SUBROUTINE FOR READING THE 1 SECOND BUFFER 7999 REM 8000 PRINT # 3, "RB" 8002 GOSUB 9000 : IF ZZ$ = "" THEN 8002 ELSE 8004 8004 BUF1 = VAL(ZZ$) 8006 CLS : LOCATE 5,15 : PRINT "THE 1 SECOND BUFFER IS "; BUF1 8008 LOCATE 22,15 : PRINT "HIT 'M' TO RETURN TO THE MAIN MENU"...
  • Page 88 8614 RETURN 8616 REM 8796 REM------------------------------------------------------------------------- 8797 REM 8798 REM GET THE TIME INTERVAL 8799 REM 8800 CLS : LOCATE 10,5 : PRINT "ENTER THE TIME INTERVAL IN SECONDS" 8802 LOCATE 12,8 : INPUT DT 8-14 Model 3022A Condensation Particle Counter...
  • Page 89 8804 RETURN 8806 REM 8896 REM------------------------------------------------------------------------- 8897 REM 8898 REM INPUT THE DATA FILE NAME 8899 REM 8900 CLS : LOCATE 10,5 : PRINT "INPUT THE FILENAME OF THE DATA FILE" 8902 LOCATE 12,8 : INPUT FILE$ 8904 OPEN FILE$ FOR OUTPUT AS # 1 8906 FFLAG = 1 'set FFLAG = 1 for storing the data 8908 RETURN...
  • Page 90 8-16 Model 3022A Condensation Particle Counter...

  • Page 91: Maintenance And Service

    C H A P T E R 9 M a i n t e n a n c e a n d S e r v i c e Regular maintenance of your CPC will help ensure years of useful operation.

  • Page 92: Locating The Filter Plug On The Bottom Of The Cpc: (A) Power Supply Pc Board; (B) Filter Plug; (C) Front Panel

    (Figure 9-2). Make sure the tube is centered and fits snugly inside the mounting hole. Figure 9-1 Locating the Filter Plug on the Bottom of the CPC: (a) Power Supply PC Board; (b) Filter Plug; (c) Front Panel Model 3022A Condensation Particle Counter...

  • Page 93: Replacing The Filter Tube: (A) Filter

    Figure 9-2 Replacing the Filter Tube: (a) Filter 6. Replace the filter plug and tighten it so that the end of the plug is flush with the sensor housing. To order the tube filters, order part number 1602061; or, order a Microfibre filter tube (no.

  • Page 94: Pump Exhaust Filter (Dq)

    1. Drain the liquid and switch off the power. 2. Remove the top cabinet cover. 3. Disconnect the pump from the leak-check by disconnecting the Swagelok fitting on the exit side of the HEPA filter. Model 3022A Condensation Particle Counter...

  • Page 95: Checking For Leaks With A Vacuum

    4. Disconnect the pressure transducer air tubes and plug the ends. The pressure transducer must not be subjected to high vacuum or high pressure. 5. Plug the inlet of the CPC. Connect a vacuum source to the exit side of the HEPA filter. Connect a pressure gauge or manometer to the vacuum as shown in Figure 9-3.

  • Page 96: Installing An Eprom

    It may also be helpful to have the technician, tools, and the CPC close to the telephone when discussing the problem with a TSI technician. Refer to Chapter 9 for directions on contacting a technical resource at TSI. Model 3022A Condensation Particle Counter...
  • Page 97 # Use only a table top with a grounded conducting surface. # Wear a grounded, static-discharging wrist strap Refer to Figures 9-5 and 9-6 and the following instructions to install an EPROM in a Model 3022A CPC. Tools Needed You need a small, flat screwdriver or 28-pin chip extractor, a Phillips-head screwdriver, a grounded, static-discharging wriststrap, and an antistatic mat.

  • Page 98: Model 3022A Cpc Screw Locations

    6. Remove the updated version of the EPROM from its static protective wrapper. EPRO M TSI INCOR PO RA TED P.C. BOARD NO. 2605511 REV C Figure 9-6 EPROM Location on the Model 3022A CPC Display Board Model 3022A Condensation Particle Counter...

  • Page 99: Failures

    7. Align the new EPROM in the socket, making sure the EPROM’s notch matches the notch on the circuit board (Figure 9-6). Apply pressure to the center of the chip until it snaps down into the socket. Press firmly to make sure it is seated properly and ensure there are no bent or unseated pins.

  • Page 100: Technical Contacts

    TSI Incorporated, (651) 490-2833. # If the CPC fails, or if you are returning it for service, contact TSI Customer Service at 1-800-874-2811 (USA) or (651) 490-2811. 9-10 Model 3022A Condensation Particle Counter...

  • Page 101: Returning The Cpc For Service

    R e t u r n i n g t h e C P C f o r S e r v i c e Call TSI Customer Service at 1-800-874-2811 (USA) or (651) 490-2811 for specific return instructions. Customer Service will need this information when you call: # The instrument model number # The instrument serial number...
  • Page 102 9-12 Model 3022A Condensation Particle Counter...

  • Page 103: Applications

    The accuracy of the single-particle-counting mode is limited only by the accuracy of the flowrate. However, the 3022A CPC may not be suitable for placement in very clean areas since its pump, fan and hot electrical components may produce some contaminating particles.

  • Page 104: Testing Filter Efficiency

    0.2 micrometer. Use the CPC’s low-flow mode and plug the makeup air when sampling from the diffusion battery or switching valve. 10-2 Model 3022A Condensation Particle Counter...

  • Page 105: Differential Mobility Particle Sizer

    Figure 10-2 shows the DMPS system in the underpressure mode. The 3022A CPC has an advantage over the earlier Model 3020 CPC because it can control the EC’s center-rod voltage directly from the CPC. There is no need for an additional interface box.

  • Page 106: Schematic Of The Dmps/Cpc In The Underpressure Mode

    (see “Inlet Pressure” in Chapter 4). Figure 10-2 Schematic of the DMPS/CPC in the Underpressure Mode 10-4 Model 3022A Condensation Particle Counter...

  • Page 107: Appendix E S

    A P P E N D I X A R e f e r e n c e s The following sources have been used in the text of this manual. Agarwal, J.K. and G.J. Sem [1980] “Continuous Flow Single-Particle-Counting Condensation Nuclei Counter”...
  • Page 108 “New Automated Diffusion Battery/Condensation Nucleus Counter Submicron Sizing System: Description And Comparison with an Electrical Aerosol Analyzer” Proc. 2nd Symp. Advances in Particulate Sampling and Measurement, U.S. Environ. Protection Agency, Research Triangle Park, North Carolina Model 3022A Condensation Particle Counter...
  • Page 109 Sinclair, D. and G.S. Hoopes [1975] “A Continuous Flow Nucleus Counter” J. Aerosol Sci., Vol. 6, pp. 1–7 Stolzenburg, M.R. [1988] “An Ultrafine Aerosol Size Distribution Measuring System” Ph.D. Thesis, University of Minnesota, Minneapolis, Minnesota, July References...
  • Page 110 Model 3022A Condensation Particle Counter...
  • Page 111 S p e c i f i c a t i o n s The following specifications—which are subject to change—describe the most important data of the major components. Table B-1 Specifications of the Model 3022A CPC Minimum particle size ..50% detection at .007 µm 90% detection at 0.015 µm Flowrate Sensor .......
  • Page 112 Model 3022A Condensation Particle Counter...
  • Page 113 A P P E N D I X C T e c h n i c a l P a p e r s This appendix contains two technical papers: Agarwal, J.K. and G. J. Sem [1978] “Generating Submicron Monodisperse Aerosols for Instrument Calibration”...
  • Page 114 Model 3022A Condensation Particle Counter...
  • Page 115 Technical Papers...
  • Page 116 Model 3022A Condensation Particle Counter...
  • Page 117 Technical Papers...
  • Page 118 Model 3022A Condensation Particle Counter...
  • Page 119 Technical Papers...
  • Page 120 Model 3022A Condensation Particle Counter...
  • Page 121 Technical Papers...
  • Page 122 C-10 Model 3022A Condensation Particle Counter...
  • Page 123 Technical Papers C-11...
  • Page 124 C-12 Model 3022A Condensation Particle Counter...
  • Page 125 Technical Papers C-13...
  • Page 126 C-14 Model 3022A Condensation Particle Counter...
  • Page 127 Technical Papers C-15...
  • Page 128 C-16 Model 3022A Condensation Particle Counter...
  • Page 129 Technical Papers C-17...
  • Page 130 C-18 Model 3022A Condensation Particle Counter...
  • Page 131 A P P E N D I X D C a l i b r a t i o n a n d D a t a S h e e t s This appendix includes the following calibration and data sheets: 3022 Data Sheet Calibration Data Sheet Photometric Calibration Curve...
  • Page 132 Model 3022A Condensation Particle Counter...
  • Page 133 A P P E N D I X E S o f t w a r e D i s k This appendix includes software for the TSICPC.BAS program. Refer to Chapter 7 for information on using the software.
  • Page 134 Model 3022A Condensation Particle Counter...
  • Page 135 TSI Incorporated 500 Cardigan Road , Shoreview, MN 55126 U.S.A. Web: www.tsi.com...

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