Droplet SP2-D Operator'S Manual Download Page 1

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C O P Y R I G H T © 2 0 1 7 D R O P L E T M E A S U R E M E N T T E C H N O L O G I E S

Single Particle Soot

Photometer (SP2)

Operator Manual

DOC-0171

Revision G-9—Describes the SP2-D

2400 Trade Centre Avenue

Longmont, CO 80503 USA

Summary of Contents for SP2-D

Page 1: ...H T 2 0 1 7 D R O P L E T M E A S U R E M E N T T E C H N O L O G I E S Single Particle Soot Photometer SP2 Operator Manual DOC 0171 Revision G 9 Describes the SP2 D 2400 Trade Centre Avenue Longmont...

Page 2: ...d function and does not represent a commitment on the part of the manufacturer Information furnished in this manual is believed to be accurate and reliable However no responsibility is assumed for its...

Page 3: ...uct STRICT OBSERVANCE OF THE FOLLOWING WARNING LABELS IS ADVISED The following label appears on the back panel of the SP2 The following laser safety label is located on the exterior of the laser frame...

Page 4: ...label appears on the back panel of the instrument Warning If not properly grounded the instrument can cause an electrical shock Use a three conductor cord and a plug appropriate for the location in w...

Page 5: ...er Safety Interlocks 23 7 0 Routine Maintenance 25 7 1 SP2 D Procedure to Calibrate the Laminar Flow Element 26 7 2 Procedure for Alignment of the YAG Laser 26 7 3 Cleaning the Laser Optics 26 8 0 Cal...

Page 6: ...ration File 18 Figure 11 Sample Pump Power Switch 19 Figure 12 Sample Flow Stabilizing 19 Figure 13 Turning on the Laser from the Control Tab 20 Figure 14 Verifying Particle Response 21 Figure 15 Turn...

Page 7: ...stribution as function of particle diameter Particle number distribution as a function of particle size Maximum Data Acquisition Rate 25 000 particles second 0 12 500 particles cm3 at standard flow ra...

Page 8: ...8 in Swagelok sample inlet 2 USB 2 0 ports laser ON OFF indicator light Rear Panel Connections Keyboard port mouse port VGA and HDMI monitor ports 2 Ethernet ports 2 RS 232 communications ports 4 USB...

Page 9: ...for pump 3 kg for monitor Dimensions SP2 48 cm W x 61 cm L x 26 cm H Pump 20 cm W x 25 cm L x 10 cm H Monitor 37 cm W x 22 cm L x 39 cm H Shipping Container Durable Atlas Case Corporation ATA Transit...

Page 10: ...number concentration All particles scatter light regardless of whether or not they absorb light A scattering detector is included in the SP2 which detects single particle scattering at 1064 nm and the...

Page 11: ...C pump power connection 8 Monitor ports VGA on left HDMI on right 2 Purge flow 9 RS 232 serial ports 3 Exhaust flow 10 Keyboard port 4 External speakers and microphone connections 11 Mouse port 5 Ethe...

Page 12: ...rom the fiber onto the gain medium The laser beam is Gaussian in shape nominally 230 microns width at 90 power level Output coupler BK7 n 1 51 at 1064 OD 15 mm CT 11 mm S1 2000mm ROC HR 1064 nm S2 Fla...

Page 13: ...nd both scatter and incandesce This detector is identified as Channel 0 in the data Two photomultiplier tube PMT detectors measure the incandescence signal in the visible region These channels are opt...

Page 14: ...the analyzer chassis This case should be saved and used to return the analyzer to DMT if service is needed The other carton will contain the sample pump keyboard monitor cables and other accessories C...

Page 15: ...ly tubes exiting the SP2 purge port to the Drierite cartridge Figure 6 Figure 6 Connecting SP2 Purge Valve to Drierite Cartridge b Connect the Drierite cartridge to the out flow purge port on the SP2...

Page 16: ...tion in which the instrument will be used Connect the plug to a properly grounded receptacle 3 3 Turning On the System To turn on the SP2 follow the instructions below Note Users who have the SP2 with...

Page 17: ...Being Viewed is set to the correct config file See Figure 9 for the location of this parameter The name of the config file may vary depending on your instrument If the correct file is loaded skip to s...

Page 18: ...2017 DROPLET MEASUREMENT TECHNOLOGIES Figure 10 Loading a New Configuration File 7 Click on the Control tab in the SP2 software Move the Sample Pump Power Switch to ON Figure 11 You should hear the p...

Page 19: ...ROPLET MEASUREMENT TECHNOLOGIES Figure 11 Sample Pump Power Switch 8 Go to the SP2 tab on software Wait until the flow has stabilized Sample Flow LFE should be approximately 120 vccm Figure 12 Figure...

Page 20: ...OC 0171 Rev G 9 2 0 2017 DROPLET MEASUREMENT TECHNOLOGIES 9 Click on the Control tab in the SP2 software Figure 13 Move the Laser Power Switch to ON Figure 13 Turning on the Laser from the Control Tab...

Page 21: ...EASUREMENT TECHNOLOGIES 10 Go to the SP2 tab in the software and verify the particle response Figure 14 Figure 14 Verifying Particle Response 11 Proceed with sampling and data recording For details se...

Page 22: ...sample flow is measured by a Laminar Flow Element immediately ahead of the sample jet The sample jet uses a sheath of filtered air to narrow the aerosol stream just before the laser beam An additional...

Page 23: ...closed too far so open the needle valve 1 8 turn or less and allow the system to stabilize This will take a minute or more Continue adjusting the needle valve until the desired valve set voltage is r...

Page 24: ...DOC 0171 Rev G 9 2 4 2017 DROPLET MEASUREMENT TECHNOLOGIES Figure 16 SP2 Key in the Locked left and Unlocked right Positions Figure 17 Laser Interlocks Circled in Lower Left and Upper Right of SP2...

Page 25: ...that the SP2 requires is to periodically refresh or replace the desiccant in the drying cartridge on the purge line If the desiccant becomes saturated and the SP2 is operated in a very humid environm...

Page 26: ...assword In the AI Channels table find the Offset and Linear parameters for Sample Flow These should read 1 1819 and 110 3629 respectively Insert the value for intercept in the Offset field and the val...

Page 27: ...DMA Take approximately 10 data points with nominal particle size between 80 nm to 500 nm Generally two data files are taken at each setting 2 Shut off the DMA and the SP2 3 Process the data files and...

Page 28: ...nificantly Rapid over pressurization of the chamber IMMEDIATELY turn off the laser If possible put a filter on the front of the instrument and allow to purge for 30 60 minutes After this time turn the...

Page 29: ...formation on laser safety interlocks 6 0 7 29 12 G 3 Added instructions on how to configure and test the four rear panel analog input channels Appendix C 9 19 12 G 4 Updated SP2 Flow Diagram Figure 17...

Page 30: ...ser Storage and Handling Instructions Storing the SP2 YAG Pump Laser For SP2 YAG pump lasers purchased separately from the SP2 instrument the laser is provided with a special protective box Fig 1 Keep...

Page 31: ...h this shorting connector to any laser that is removed from the power supply Fig 21 2 Keep the protective cap on the SMA fiber connector end unless the fiber end is being cleaned or being attached to...

Page 32: ...of the box support the fiber and do not let it hang down where it can catch on components and bend to the point of breaking Appendix C Configuring and Testing the SP2 s Four Analog Input Channels Con...

Page 33: ...ange it to 2 7 Change the Chan column s number to 24 8 In the Range column define the range as desired 9 Repeat steps 3 8 to enter information for any other desired analog input channels In step 7 inc...

Page 34: ...n the far right table until you can see the four entries that were defined during the Configuration step Figure 24 Control Tab Display of Newly Added AI Channels 3 Apply a known voltage within the 10V...

Page 35: ...71 Rev G 9 3 5 2017 DROPLET MEASUREMENT TECHNOLOGIES Appendix D Plumbing Diagram The SP 2 Plumbing Diagram available upon request Appendix E SP2 D System Schematics System schematics available upon re...

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