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Using Serial Data Commands

C-21

—Generate Accumulator Report Record

(Report Record A)

Enables and disables reporting of Record A in unpolled operation.

UAx

where:

x = 1 Enables A Record
x = 0 Disables A Record

UA will echo current setting 0 or 1.

See Record A in the “

Unpolled Record Formats

” section of this chapter.

—Generate Side Scatter Accumulator Report

Record (Report Record B)

Enables and disables reporting of Record B in unpolled operation.

UBx

where:

x = 1 Enables B Record
x = 0 Disables B Record

UB will echo current setting 0 or 1.

See Record B in the “

Unpolled Record Formats

” section of this chapter.

—Generate Correlated (Paired) Report Record

(Report Record C)

Enables and disables reporting of Record C in unpolled operation.

UCx

where:

x = 1 Enables C Record
x = 0 Disables C Record

UC will echo current setting 0 or 1.

See Record C in the “

Unpolled Record Formats

” section of this chapter.

Summary of Contents for SIZER 3321

Page 1: ...AERODYNAMIC PARTICLE SIZER SPECTROMETER MODEL 3321 USER S MANUAL P N 1930092 REVISION H SEPTEMBER 2013...

Page 2: ......

Page 3: ...IZER SPECTROMETER MODEL 3321 USER S MANUAL Product Overview 1 Unpacking and System Setup 2 Description of the APS Spectrometer 3 APS Spectrometer Operations 4 Theory of Operation 5 Contacting Customer...

Page 4: ...tory of the Model 3321 Aerodynamic Particle Sizer Spectrometer Part Number 1930092 Revision Date Preliminary March 1997 Preliminary 2 September 1997 Final November 1997 October 1998 A July 2000 B Dece...

Page 5: ...d by any person other than Seller The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated herein NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOS...

Page 6: ...If any mal function is discovered please contact your nearest sales office or representative or call TSI at 1 800 874 2811 USA or 651 490 2811 Trademarks TSI TSI logo Aerodynamic Particle Sizer and Ae...

Page 7: ...se blindness Take these precautions Do not remove any parts from the APS spectrometer unless you are specifically told to do so in this manual Do not remove the APS housing or covers while power is su...

Page 8: ...vi Model 3321 Aerodynamic Particle Sizer Spectrometer 7 Ground Label inside bottom 8 Danger High Voltage Label Analog PC Board Figure 1 Location of Warning and Information Labels...

Page 9: ...ould 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 Caution or Warning Symbols The following...

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Page 11: ...ates 1 3 System History 1 4 CHAPTER 2 Unpacking and System Setup 2 1 Packing List 2 1 Mounting the Sensor 2 2 Ventilation Requirements 2 3 Power Connection 2 4 Connecting the Computer 2 4 I O Port 2 5...

Page 12: ...ial Data Commands C 1 Pin Connectors C 1 Baud Rate C 2 Parity 7 Bits Even C 2 Stop Bits and Flow Control C 2 Commands C 3 Set Commands C 5 Action Commands C 13 Read Commands Polled C 16 Unpolled Comma...

Page 13: ...ectrometer Optics Cross Section 5 4 5 3 Typical Example of a Double Crested Signal 5 5 A 1 Location of EPROM Chips on APS Spectrometer Digital PC Board A 8 C 1 SERIAL PORT Pin Designations C 1 C 2 Ser...

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Page 15: ...e Powder Disperser Manual part number 1933769 TSI Incorporated Model 3306 Impactor Inlet Manual part number 1933787 TSI Incorporated S u b m i t t i n g C o m m e n t s TSI values your comments and su...

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Page 17: ...er data collection system The Aerosol Instrument Manager software with Model 3321 Module is included with the sensor to provide computer controlled operation and data interpretation The Model 3321 inc...

Page 18: ...the following areas Inhalation toxicology Atmospheric studies Ambient air monitoring Drug delivery studies Powder sizing Filter and air cleaner testing Indoor air quality monitoring Biohazard detecti...

Page 19: ...laser beams resulting in two distinct signals for each particle As shown in Figure 1 2 the Model 3321 overlaps the two laser beams producing one double crested beam profile Each particle creates a si...

Page 20: ...particle instruments The Model 3320 APS spectrometer is a complete redesign of earlier APS spectrometer models and began shipping in early 1997 This smaller ruggedized sensor includes improvements su...

Page 21: ...and accessory kit Please compare the list to the items you received If any items are missing notify TSI immediately Table 2 1 Accessories Packing List Qty Description Part No 1 Model 3321 Sensor 3321...

Page 22: ...re installed in the cabinet using integrated 8 32 UNC threaded fasteners and can be removed by unscrewing to allow other mounting fasteners to be used Note If the cabinet is mounted to a plate drill h...

Page 23: ...be installed with at least 2 inch 50 mm clearance between the back panel and any other surface The sides should have at least 2 inch 50 mm clearance between the cabinet and any other surface Most imp...

Page 24: ...s self regulating Toggle the on off switch at the POWER connection to the on position to verify the sensor has power Alternately connect 24 VDC to the DC POWER IN connection Contact TSI to order the n...

Page 25: ...sing commands described in Appendix C This port also has two analog input pins to allow data logging of analog voltages from external devices such as temperature or relative humidity sensors Figure 2...

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Page 27: ...ample setup and view detailed instrument status The back panel provides power and communications connections as well as sample exhaust outlet Internal components consist of the flow system the optics...

Page 28: ...ont Panel of the Model 3321 APS Spectrometer The 320 240 pixel LCD display provides continuous real time display of sample data Sample data includes Size distribution Concentration Mean aerodynamic pa...

Page 29: ...play This will cause three buttons to appear at the bottom of the screen Continue turning until the Start button is highlighted then press the control knob To change from the graphic display to the sy...

Page 30: ...e a particle passes through the sensor In normal room air the LED will appear to be lit constantly When sampling aerosols in low concentrations the LED will appear to flicker The amber HI CONC LED ind...

Page 31: ...switch DC Power in Pump Exhaust Cooling Fan Serial Port Analog Out Time Of Flight Pulse Out I O Port Figure 3 3 Back Panel of the Model 3321 APS Spectrometer AC Power Connector The AC Power Connector...

Page 32: ...ions Table 3 1 Power Connections for 24V DC Power Input Pin Number Signal 1 GND Chassis GRN YEL 2 24V Blue 3 GND Brown Shield 4 Chassis Shield Pump Exhaust Sample aerosol is exhausted through the Exha...

Page 33: ...l input and three digital output pins It allows various signals to be sent to a data logger or control switches Refer to Appendix C Using Serial Data Commands for serial commands to control the I O Po...

Page 34: ...des amplified raw signals from the photodetector This signal can be used with an oscilloscope for example to examine secondary characteristics of the pulses I n t e r n a l C o m p o n e n t s The loc...

Page 35: ...M Spectrometer 3 9 Analog PC Board Digital PC Board Sheath Flow Pump Filters Detector PC Board Power Supply Optics Power PC Board Total Flow Pump Laser PC Board Figure 3 6 Internal Diagram of the Mode...

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Page 37: ...displayed on the front panel may not exactly match data recorded with the Aerosol Instrument Manager software due to rounding differences Also concentration displayed for 0 523 m on the front panel in...

Page 38: ...ress the control knob The APS spectrometer will immediately begin sampling according to the parameters set on the menu Figure 4 1 APS Spectrometer Menu 5 Monitor the display to verify that sampling is...

Page 39: ...g a serial data command as described in Appendix C Baud Rate Select the baud rate at which the sensor will communicate with your computer Use the control knob to select 38400 19200 or 9600 The default...

Page 40: ...APD temperature This setting will always be enabled when the instrument is first powered on Alarm Level pt cm 3 Level of total particle concentration at which the APS spectrometer will issue a high co...

Page 41: ...of flight measurement to an aerodynamic particle diameter For convenience this particle size is binned into 52 channels on a logarithmic scale The particle range spanned by the APS spectrometer is fr...

Page 42: ...low confines the sample particles to the center stream and accelerates the airflow around the particles In this way small particles which can accelerate with the flow reach a higher velocity than larg...

Page 43: ...edges of the beams to give a clean beam under the particle stream A window is used solely as a sealing surface to keep the optics chamber separate from the optical elements and a final aperture is us...

Page 44: ...te Plate Pos Spherical Lens Neg Spherical Lens Laser Steering Laser PCB Laser Diode Polarization Rotator Window Aperture Plate Aperture Plate Beam Stop 1st Polarization Beam Stop 2nd Polarization Elli...

Page 45: ...referred to as a double crested signal consists of a pair of peaks Figure 5 3 Typical Example of a Double Crested Signal Each peak represents the presence of the particle in the center of the individ...

Page 46: ...cates the zero crossings of the differentiated double crested analog signal which occur when the slope of the signal is equal to zero Zero crossings DIFF signal transitions are positive going for a va...

Page 47: ...ed and recorded Digital Module The GATE and DIFF digital signals from the analog module are used to trigger a high speed timer which has 4 0 ns resolution and a maximum range of 4 096 s After the gate...

Page 48: ...ceeds 4 096 s This happens when a very large particle or a recirculating particle travels very slowly through the measurement area Detection Threshold 4 096 s The second PAL is the Counting PAL and is...

Page 49: ...the PALs are finished recording the data the timer is reset for the next particle P a r t i c l e C o i n c i d e n c e Particle coincidence is typically defined as more than one particle in the viewi...

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Page 51: ...r application questions about this system contact an applications engineer at one of the locations listed below TSI Incorporated 500 Cardigan Road Shoreview MN 55126 USA Phone 1 800 874 2811 USA or 1...

Page 52: ...will need this information when you call The instrument model number The instrument serial number A purchase order number unless under warranty A billing address A shipping address Use the original p...

Page 53: ...The conditions under which the instrument is used will greatly affect this schedule If the instrument is used to sample unusually dirty environments the times between maintenance should be shortened...

Page 54: ...ment are susceptible to electro static discharge ESD damage Use ESD precautions to avoid damage Use only a table top with a grounded conducting surface Wear a grounded static discharging wrist strap 1...

Page 55: ...instrument 17 Apply power to the instrument with the switch on the back panel 18 Check that the flows are correct C l e a n i n g t h e O u t e r N o z z l e Clean the nozzles according to the mainten...

Page 56: ...sufficient and remove the cover straight upward 4 Remove the outer inlet nozzle by gripping it and lifting straight up 5 Grip the inner nozzle and lift straight up 6 Remove the two screws securing th...

Page 57: ...Tilt the digital printed circuit board back down until the ribbon cable connector can be plugged back into the board Plug in the ribbon cable connector 21 Tilt the digital printed circuit board down f...

Page 58: ...a table top with a grounded conducting surface Wear a grounded static discharging wrist strap 1 Switch the power off using the switch on the back of the cabinet and unplug the power cord from the APS...

Page 59: ...nnector on the back of the instrument 19 Apply power to the instrument with the switch on the rear panel 20 Check that the flows are correct R e p l a c i n g t h e E P R O M Normally the EPROM will n...

Page 60: ...es two EPROM chips They should be labeled with seven digit part numbers It is important that they go in the correct sockets 7 Locate the EPROM sockets from Figure A 1 Figure A 1 Location of EPROM Chip...

Page 61: ...18 Tighten the six screws holding the cover in place 19 Replace the outer inlet retaining ring and tighten firmly 20 Insert the power cord into the power entry connector on the back of the instrument...

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Page 63: ...the APS spectrometer is powered up The pumps do not control the flows to the proper flow rates or the flows are erratic Check for blockage in the flow path The outlet in the back panel may be blocked...

Page 64: ...or higher factory setting is 75 Note changing the power setting from the instrument calibration setting will change the calibration Rotate the knob to scroll the cursor down the menu until the laser...

Page 65: ...itions and syntax Examples as well as input and troubleshooting directions are also provided P i n C o n n e c t o r s The Model 3321 has a single 9 pin D subminiature connector port on the back panel...

Page 66: ...all software used with the instrument is set at the appropriate rate The baud rate must be set to 38 400 for correlated mode See SMT and SB commands P a r i t y 7 B i t s E v e n Parity is the additi...

Page 67: ...specific request from the computer Unpolled commands in which the APS spectrometer automatically outputs data records at specific intervals No line feed characters are transmitted Either the requeste...

Page 68: ...mand Fill command Fx Go sample Gx Halt command Laser on off Quick concentration report Sampling Sx Read Polled Commands R RF RI RL RO RPI RPS RPT RQA RQS RQT RR RTB RTD RTI RV Read accumulator Rb e Re...

Page 69: ...baud rates or communications will fail The baud rate can also be changed from the APS spectrometer front panel menu see Table 4 1 SBx where x 0 for 9 600 1 for 19 200 2 for 38 400 Examples To se the...

Page 70: ...calibration data is held in EEPROM and loaded into RAM on power up The SCA0 0 terminator also causes the calibration data to be tested for monotonicity and if the data in the calibration table is not...

Page 71: ...the number of side scatter channels that will report SCRx where x 1 2 4 8 16 32 or 64 Note 64 is the default on power up Example To set the number of side scatter channels that will report to 16 SCR16...

Page 72: ...ns 11 12 and 13 to 5 volts SD7 SF Set Front Panel Enable SF lets you disable the front panel of the Model 3321 to prevent clearing sample averages that are being read by an external computer SFx where...

Page 73: ...the LED is updated every second Examples To light the HI CONC LED when the concentration 1500 particles cm3 SH1500 To prevent the HI CONC LED from lighting at any concentration SH65535 SL Set Laser P...

Page 74: ...cc 2 volts 1 cc 1 volts 1 cc 0 volts 6 host Table C 3 Analog Voltage Output Settings SMA Setting BNC Analog Output Voltage V X 0 1 2 3 4 5 10 0 0 1 cc 2 cc 3 cc 4 cc 5 cc 1 cc 1 0 1 cc 2 cc 3 cc 4 cc...

Page 75: ...mple mode and sample time for continuous sampling operation See S command for more details on starting stopping sampling according to SMT command SMTa t where a sample mode 0 means averaging mode 1 me...

Page 76: ...he pumps on and off Spx y where x total pump status 0 off 1 on y sheath pump status 0 off 1 on Note Turn both pumps on with SP1 Turn both pumps off with SP0 Examples To set the total pump off and the...

Page 77: ...nical state is echoed back A Perform APD Autocal Performs an automatic calibration of the Avalanche Photodetector if autocal is enable by the SMC command see SMC Example To perform automatic calibrati...

Page 78: ...mulators with x If no x is provided it returns 1 or 0 to indicate active or inactive When active an S1 command begins a sample of SMT time and fill data is not cleared after each one second summation...

Page 79: ...disables sampling The mode of sampling is set by the SMT command Sx where x is 0 1 or 2 through 65565 0 Disable sampling 1 Enable continuous sampling Previous sample data automatically cleared when ne...

Page 80: ...carriage returns Example Response R0 100 Reads bins 0 to 100 R 100 Reads bins 0 to 100 R400 Reads bins 400 to 1023 R Reads bins 0 to 1023 RF Read Flags RF returns a four character hexadecimal value r...

Page 81: ...analog ground The analog values are reported as a decimal number from 0 0 to 5 000 VDC All readings are instantaneous Example Response RI 100 2 43 1 93 Pin 1 has logic level high 5 VDC Pins 2 and 3 a...

Page 82: ...RPT Read Total Delta P Reads the change in pressure across the nozzle flow orifice in Pascals Example Response RPT 130 72 RQA Read Aerosol Sample Flow Reads the aerosol sample flow rate in liters per...

Page 83: ...l temperature of the Model 3321 Example Response RTB 298 2 Indicates the internal temperature is 298 2 K or 25 0 C RTD Read Temperature of Detector APD Reads the APD and optics temperature of the Mode...

Page 84: ...g unpolled operation records that have been enabled are sent at the end of each averaging time All U parameters are retained in EEPROM Not all records available in all modes e g UAx command is not ava...

Page 85: ...lator Report Record Report Record B Enables and disables reporting of Record B in unpolled operation UBx where x 1 Enables B Record x 0 Disables B Record UB will echo current setting 0 or 1 See Record...

Page 86: ...te Side Scatter Data Report Record Report Record S Enables and disables reporting of Record S in unpolled operation USx where x 1 Enables S Record x 0 Disables S Record US will echo current setting 0...

Page 87: ...on A if in autocal mode D if in autocal and autocal was done at the beginning of this sample X X for spare position tindex time index 0 to sample time value 1 note if enabled for unpolled operation th...

Page 88: ...ocal and autocal was done at the beginning of this sample X X for spare position tindex time index 0 to sample time value 1 note if enabled for unpolled operation the record is always reported when ti...

Page 89: ...led for unpolled operation the record is always reported when tindex 0 ffff 4 digit hex value for status flags see RF command stime sample time not corrected for dead time dtime dead time ms for 3321...

Page 90: ...al 2 hump particles measured sum of reported channels evt 2 d1 dn particle counts in calibrated diameter channels n determined by SCA data usually 52 SS Data Record S CS S ANX tindex ffff stime dtime...

Page 91: ...vel of I O connector pin 3 ref to GND pins 9 10 lpower laser power of maximum power lcur laser current ma spumpv sheath pump voltage tpumpv total pump voltage itemp inlet temperature in degrees C ex 2...

Page 92: ...e Input Guidelines in this section No response after pressing Enter In unpolled mode Use the U0 command to disable unpolled mode Enter U1 if an OK is returned Serial cable Check the cable and the cabl...

Page 93: ...Usable data up to 10 000 pt cm 3 Display Resolution 32 channels per decade of particle size logarithmic This results in 52 channels total 1 024 bins of raw time of flight data 4 nsec per bin in uncor...

Page 94: ...erodynamic Particle Sizer Spectrometer Weight 10 kg 22 lb Fuse not replaceable by user internal to power supply not accessible by operator T 6 3A SB 250V TSI and TSI logo are registered trademarks of...

Page 95: ...B back panel 3 5 baud rate C 2 beep C 13 begin unpolled operation C 20 BNC connector 2 5 BNC connectors 3 8 Analog Out 3 8 Pulse Out 3 8 Timeof Flight 3 8 C calibration A 9 change graphic display 3 3...

Page 96: ...l Delta P C 18 read total flow C 18 related product literature xiii replacing EPROM A 7 replacing filters A 6 restart sample 3 3 returning for service 6 2 S safety v sample flow path 5 1 sample setup...

Page 97: ...22 generate correlated paired report record report record C C 21 generate side scatter accumulator report record report record B C 21 generate side scatter data report record report record S C 22 unpo...

Page 98: ......

Page 99: ...to the following features Good Adequate Poor Readability Accuracy Completeness is everything there Organization finding what you need Quality and number of illustrations Quality and number of example...

Page 100: ......

Page 101: ...more information USA Tel 1 800 874 2811 UK Tel 44 149 4 459200 France Tel 33 4 91 11 87 64 Germany Tel 49 241 523030 India Tel 91 80 67877200 China Tel 86 10 8219 7688 Singapore Tel 65 6595 6388 P N 1...

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