Portable Flux Observation System User Manual
Contents
1. 22 AS CR3000 Control PrOBgr tn z aes ace sats sacs anes 23 A Parts and Componctits nie E iE HO DE 26 1 Overview 1 Overview As areference system for tower flux observations a portable flux observation system which can perform sensible heat water vapor and CO flux measurements with the eddy covariance method was developed The inter site comparison of tower flux data collected by a variety of measurement systems becomes simplified with the use of this portable flux observation system as a reference device Furthermore because the portable flux observation system was designed on the assumption that it would be used for short term observations the configuration of the system is simple and the principles of operation are easy to understand Therefore the portable flux observation system may serve as a barebones model of a flux observation system for researchers who intend to initiate new flux observations The portable flux observation system consists of a number of components including a closed path infrared gas analyzer LI 7000 LI COR an ultrasonic anemo thermometer CSAT3 Campbell Scientific a humidity and temperature sensor HMP45A Vaisala a data logger which allows high speed data sampling CR3000 Campbell Scientific and a flow path control system to be used for calibrations The portable flux observation system 15 stored in a plastic container so2. 1 2 8 solenoid 1 1 2 5 6 8 10 17 23 26 flow meter 1 6 12 26 span 1 11 2 0 0000005055000220 12 20 G SD Bd Loops 1 3 5 11 12 13 23 gas analyzer infrared gas analyzer 1 6 12 13 tubes 3 4 12 13 15 17 27 H bme 13 humidity and temperature sensor HMP45A U ec 1 3 4 5 9 13 14 15 17 ultrasonic anemo thermometer 5 3 cc S AM SS Wee 1 3 4 9 10 13 14 15 17 18 21 23 infrared gas analyzer 1 7100 V 1 3 5 6 9 11 12 13 17 18 20 ventilation shield cotton roto do L7 L EE m LI 7000 infrared gas analyzer 2 CallDEOHOTI 12 20 LI 7000 software 11 12 13 20 TOSS AS OR 8 11 12 13 23 _ 28 Editors and Authors TAKANASHI Satoru OHTANI Yoshikazu Satoko Department of Meteorological Environment MIZOGUCHI Yasuko YAMANOI Katsumi Hokkaido Research Center FFPRI FluxNet Forestry and Forest Products Research Institute Published in February 2011 Portable Flux Observation System User Manual Editing Publication Hokkaido Research Center Forestry and Forest Products Research Instit
3. DF 3 Gelman Acro 50 9967 008 available from LI COR U S A 1 0um PTFE 5 ELECTRIC TERMINALS 280 681 terminal WAGO Japan 280 326 end plate for 280 681 WAGO Japan 280 907 common earth terminal WAGO Japan 280 309 end plate for 280 907 WAGO Japan 249 116 end stop WAGO Japan 209 666 number plate WAGO Japan 209 607 number plate WAGO Japan DIN Rail 50 cm length Aluminum Gap arrester YO8U 75B Sankosha Japan 6 ELECTRIC CONNECTORS 8 pin panel mount female MMS3102A 22 23 S MISUMI Japan 8 pin straight male MMS3106B 22 23 P MISUMI Japan 7 pin panel mount female MMS3102A 20 15 S MISUMI Japan 7 pin straight male MMS3106B 20 15 P MISUMI Japan Dust cap NMS25042 20D MISUMI Japan Dust cap NMS25043 20D MISUMI Japan Cable clamp NMS3057 12A MISUMI Japan 2G 2 Appendices 7 TUBE For the pump filter segment NRK Unitube Nippon Rikagaku Kikai 7SW 7x13 6 4 tube polyethylene 8 6 tube PTFE 8 TUBE FITTINGS PU6 straight PISCO PG8 6 straight different diameters on ends PISCO PM6 bulkhead PISCO 55 6 0 1 4 straight Swagelok 55 6 0 7 4 straight Swagelok 55 6 0 2 4 90deg elbow Swagelok 9 CARRY CASE Pelican Box 1650 PELICAN USA 10 PUMP MVP03V12BA1 Panasonic Japan 30 L min Working voltage 12 V DC Power Supply Unit 1 SWITCHING POWER SUPPLY 150 12 COSEL Japan Input 85 to 264 V AC Output 12 V DC 13A Working voltage 100
4. Open the cylinder valve a little and use the regulator to adjust the secondary pressure of the zero gas to a sufficiently low value approx 0 05 MPa so that excess loading on the tubing system can be avoided Photo 6 Flow meters with needle valves O needle valves Set only OUT Channel 2 on the relay unit to Use the needle valve on the flow meter to adjust the flow rate to approximately 1 0 L min while checking the display on the mass flow controller refer to Photos 5 and 6 Perform span calibration after the concentration reading from the LI 7000 software stabilizes which usually takes approximately 5 minutes after the initiation of gas flow For the software operating procedure relevant for this step refer to Appendix A2 LI 7000 Software Operating Procedure Performing Span Calibration 20 J2 3 Observation Procedure Ending Calibration 3 Exit the LI 7000 software For the software operating procedure relevant for this step refer to Appendix A2 11 7000 Software Operating Procedure Shutting Down Software pg 20 Set all the OUT channels on the relay unit back to off 5 Close all regulator valves before removing the tubes 3 3 Instrument Deployment and Connection Procedure Tubes and cables are to be arranged as described in the following procedure Tubing and cabling layouts are shown in Fig 5 pg 15 Deploying the Instruments D Deploy the ultrasonic a
5. 240 AC 050 24 SANKEN Japan Input 85 to 264 V AC Output 24 V DC 2 1A Working voltage 100 240 AC 2 FAN CF 50SS ADDA China 50 mm 3700 rpm 10 Working voltage 12 V DC 3 CARRY CASE Pelican Box 1450 PELICAN USA Index Index 1 9 EO 3 4 12 15 17 27 AD UU NN TERR Eod iaa 3 4 5 6 7 9 10 11 12 13 15 16 17 23 26 A mass flow controller MFC 1 3 6 8 11 12 17 19 26 am sampling ase eio ur RE 3 4 13 15 N automated calibration eee 13 g DUE 6 12 C 0 calibration 1 2 3 8 11 12 13 15 16 20 23 9 calibration gas 1 2 3 8 11 13 15 23 channel setini 8 10 power supply unit 3 4 5 7 11 14 15 16 17 27 Ge HO d en ee RERUM SUE 1 probe coordinate 13 21 CR3000 data logger P 1 3 6 8 17 23 27 CSAT3 ultrasonic anemo thermometer R p VS EO GRENIER 3 11 12 13 data lopper OR BOO 5 8 12 13 16 1 3 5 8 10 11 13 14 16 17 18 22 S ees 16 sampled
6. avoid increased temperatures in the interior of the system If the main unit is deployed indoors the cover of the main unit can be left open for heat release D Press the white removal button on the CF card module and wait for the status LED to turn from red to green Within the subsequent 20 seconds open up the cover of the CF card module and remove the CF card refer to Photo 11 CAMPBELL 5 CAUTION If th ti to th t step in the endi ith user continues on to next step in ending procedure without removing the CF card the recorded data will not be saved thus caution and status LED is necessary After confirming the removal of the CF card shut down the CR3000 using the control panel For this procedure refer to Appendix A4 CR3000 Operating Procedure Program Termination Procedure pg 22 3 Power down the portable flux observation system by unplugging the CR3000 power connector and the power supply unit 16 4 System Specifications 4 System Specifications 4 1 Dimensions and Weights Main unit Power supply unit Power cable CSAT3 carrying case including the sensor head CSAT3 signal power cable Ventilated shield HMP45A including mounting hardware signal cable 6 4 tube outer diameter 6 mm inner diameter 4 mm 8 6 tube outer diameter 8 mm inner diameter 6mm Table 7 Dimensio
7. drop down menu select Make cell B read enter the reference concentration and click the Do CO2 Cal button LL 9 TENES Shutting Down the Software D 11 7000 main window from the Remote menu select Disconnect 2 11 7000 main window from the File menu select Exit Fig A2 LI 7000 software For details refer to the LI 7000 Instruction Manual window span calibration ftp ftp licor com perm env LI 7000 Manual LI 7000Manual pdf 220 2 Appendices CSAT3 Back side of sensor Front side of sensor X Y Fig A3 CSAT3 probe coordinate system The arrows in the figure show the directions of wind vectors For the X axis a positive value is output for wind which flows from the front side of the sensor the right side in the figure above toward the sensor For the Y axis a positive value is output for wind which flows from left to right when the front side of the sensor is viewed from the back side of the sensor 1 e from the back of the page to the front of the page in the figure above For the Z axis a positive value is output for wind which flows upward in the vertical direction EE Appendices A4 CR3000 Operating Procedure Program Execution Procedure Make sure that no programs are being executed on the CR3000 Display the main menu by pressing any button other than lt gt or ESC 2 Move the cursor to Run Stop Program by pressing either
8. models in the digital mass flow controller CMQ V series however the procedures for checking the operating mode and for checking and modifying the controlled flow rate are the same as those for the CMQ series http www compoclub com products recommend mf mf mqv1 html the instruction manuals are available in Japanese only 19 Appendices A2 LI 7000 Software Operating Procedure Performing Zero Calibration nnper 11 D 11 7000 main window from the Remote menu select Connect SES Connect to LI 7000 dialogue click on the USB tab confirm that SN IRG4 0517 is displayed Select Use Instrument Configuration and SF iden Core C Seed Configuration To click the Connect button 11 7000 main window the measured values are displayed LI 7000 main window from the Remote menu select User Calibration 5 User Calibration dialogue first perform 2 calibration From 2 Action drop down menu select Make cell match cell A and click the Do 2 Cal button User Calibration dialogue next perform CO calibration From the CO2 Action drop down menu select Make cell B match cell A and click the Do CO2 Cal button Performing Span Calibration D Same as for zero calibration Fig A1 LI 7000 software windows zero calibration 5 User Calibration dialogue perform calibration From the CO2 Action
9. mv AUX3 mv 30 EndTable 31 DataTable IRGA 1 600 32 Sample 4 IRGAData 1 EEE4 33 FieldNames H20 mmol mol C02 ppm degC P i kPa 34 EndTable 35 DataTable SAT 1 600 36 Sample 4 SATData 1 EEE4 37 FieldNames X m s Y m s Z m s T degC 38 EndTable 39 DataTable VAISALA 1 600 40 Sample 1 0iffch 4 IEEEA 41 FieldNames SATa_T degC 4 Sample 1 SATData 4 EEE4 43 FieldNames SATd_T degC AA Samp 2 TARHData 1 EEE4 45 FieldNames HMP45A_T degC HMP45A_RH 46 Sample 1 Ptemp IEEEA 47 FieldNames PTemp degC 48 EndTable 49 DataTable Flow 1 600 50 Sample 1 Flow 4 51 FieldNames Flow l s 52 EndTable 53 Define Subroutines 54 sub ZeroCal 55 1 1 56 Por tSet 2 0 57 Por tSet 3 1 58 Por tSet 4 1 59 Por tSet 5 0 60 EndSub 61 oub SpanCalibration 62 Por tSet 1 0 ss Appendices 63 64 65 66 6 68 69 70 71 72 73 74 99 100 101 102 103 104 105 106 10 Por tSet Por tSet Por tSet Por tSet EndSub Sub a Por tSet 1 Por tSet Por tSet Por tSet Por tSet EndSub Main Program BeginProg Call StartMeasure SDMSpeed SOM PER The resolution of the bit period is 1 uSec Scan Interval msec 600 0 Vol tDi ff Dest Reps Range Di f fchan RevDi ff Settlingtime Integ Mult Offset VoltDOiff Oiffch 5 10 Vol tRange 5 0 0 Datalntegration 1 0 Set SOM bit period and ge
10. sensor head Left Signal power cable for CSAT3 Lower 6 amp CSAT3 mounting hardware Right Connector on the CSAT3 end Pe 8 Connectors for the signal cable for the HMP45A left female connector on the extension cable right male connector on the sensor cable 9Air sampling inlet Tubes 8 6 tube and 6 4 tube 1 Compact flash card CF Photo 1 Components and accessories for the portable flux observation system 2 System Details 2 2 Names of Individual Components The names of the individual components installed in the main unit and the power supply unit are shown in Figs 2 4 Upper Part of the Main Unit The upper part of the main unit is equipped with a data logger CR3000 a relay unit for switching solenoid valves a barometer and relay terminal blocks CSAT3 cable connection ports 100 Barometer ot Relay unit Terminal block for HMP45A AUX Battery oo oo E 2 07 o Terminal block for power Reverse current Power cable for LI 7000 supply and solenoid valves prevention circuit and mass flow controller Signal cable for LI 7000 oystem power cable Power Cable for solenoid valves Fig 2 Schematic layout of the components installed in the upper part of the main unit 2 System Details Lower Part of the Main Unit The lower part of the main unit is equipped with an infrared gas analyzer LI 7000 a suction pump for ai
11. water vapor and CO have been chemically removed is circulated through the reference cell of the analyzer 1 Overview Main unit Sampled air LI 7000 infrared gas analyzer Sample cell Reference cell Exhaust ventilation Gas inlet terminals Solenoid valves SV 1 SV 2 Chemicals for removing water vapor and CO Flow meters FM 1 FM 2 Dust filters DF 1 DF 2 DF 3 _ Mass flow controller MFC Fig 1 Flow of sampled air and calibration gases Fluid flow is directed by the three way solenoid valves SV 1 and SV 2 NO Normally Open port which is open when power is off NC Normally Closed port which is closed when power is off COM Common common port which is always open 2 System Details 2 System Details 2 1 Components and Accessories The portable flux observation system consists of a number of components including 1 the main unit which includes an infrared gas analyzer and a data logger 2 a power supply unit 3 an ultrasonic anemo thermometer and 4 a thermo hygrometer The major system components and accessories are summarized in Table 1 In addition to the components listed here use of the system requires calibr
12. 0 to a PC with a USB cable Power up the LI 7000 Start the LI 7000 software on the PC Performing Zero Calibration Performing Span Calibration 9 Connect the regulator for the zero gas cylinder to the gas inlet ZERO GAS terminal located in the lower part of the main unit using a 6 4 tube outer diameter 6mm inner diameter 4mm CAUTION Open the cylinder valve a little and use the regulator to adjust the secondary pressure of the zero gas to a sufficiently low value approx 0 05 MPa so that excess loading on the tubing system can be avoided Photo 4 Settings for relay unit Only OUT channel 1 Set only OUT Channel 1 on the relay unit to on refer to Photo 4 is on Use the needle valve on the flow meter to adjust the flow rate to approximately 1 0 L min while checking the display on the mass flow controller refer to Photos 5 and 6 Perform zero calibration after the concentration reading from the LI 7000 software stabilizes which usually takes approximately 5 minutes after the initiation of the gas flow For the software operating procedure relevant for this step refer to Appendix A2 LI 7000 Software Operating Procedure Performing Zero Calibration pg 20 Photo 5 Mass flow controller ZERO has T Connect the regulator for the span gas cylinder to the gas inlet SPAN GAS terminal located in the lower part of the main unit using a 6 4 tube CAUTION
13. 7 Temperature in the cell Ti mV 8 Pressure in the cell Pi mV 9 Air pressure in the main unit Pa mV 10 Air temperature Ta mV 11 Relative humidity RH mV 12 Flow rate Flow mV 13 14 Unused Source Code of the Program CR3000 Series Datalogger with CSAT3 SDM 2 date 2010 04 02 3 author Takanashi S For Met Lab FFPRI 4 Declare Constants 5 Const StopMeasureMinutes 1419 22 39 6 Const StartZeroMinutes 1420 23 40 T Const Star tSpanMi nutes Star tZeroMinutest5 23 45 Const StartMeasureMinutes Star tSpanMinutest5 23 50 Const FileMarkMinutes StartMeasureMinutest5 23 55 205 2 Form of output Physical quantities Analog voltage values 0 5 V max Appendices 10 Const Interval 100 msec 11 Const DataLapse 0 O every blank data will be timestamped 12 Const Datalntegration 250 250 _60Hz 50Hz 13 Const VoltRange mV5000 14 Const DataMax 14 15 Const SDM_PER 50 16 Declare Public Variables 17 Public Dif fch DataMax 18 Public IRGAData 4 19 Public SATData 6 20 Public TARHData 2 21 Public OIRGAData 4 22 Public Ptemp 23 Public Flow 24 Define Data Tables 25 ODatalable FluxData 1 1 26 Datalnterval 0 Interval msec DataLapse 27 CardOut 1 1 CardOut O Ring 1 FillandStop 1 Auto al locate n Size 28 Samp le DataMax Diffch 1 IEEEA 29 FieldNames X m s Y m s Z m s 1T degC H20 mv CO2 mv Ti mv Pi mv Pa mv Ta mv RH mv Flow mv AUX2
14. ISBN 978 4 902606 82 9 Contents 1 3 2 1 Components atid ACCeSSOres 3 2 2 Names of Individual Components 5 2 3 settings of Individual Components 8 DO aban 11 3 Advance Preparati n 11 3 2 Calibration PROCECUI 11 3 3 Instrument Deployment and Connection 13 3 4 Data Recording Procedir eet qr tcov qr tuc ordeo den 16 2 5 Endine Procedure duliquam iq dq 16 SY SUG Mi PSC Hl ICAU ONS retired apu a DR pst duc seu Ebene e edens bns Ce oe nre aoe 17 4 1 Dimensions coepi retta pe retta me 17 AD C umen CONS WIMP ON ette deae deci edet tute decla 17 TRE LTCC SSC Ite aoo pm eut ata wc LU Pact CA add 18 PU Hgts CACO oon od 18 PVCKMOW INS N09 doo cite ee tu 18 ERN 19 Method for Checking the Mass Flow Controller Settings 19 2 LI 7000 Software Operating Procedure 20 CSAT3 Probe Coordinate System ui ete e e Ore 21 AFC ROON Opera no Procedure
15. able 2 shows the relay unit settings which are used for manually controlling the solenoid valves and the associated pump CAUTION When introducing calibration gas setting either OUT channel 1 or OUT channel 2 to on make sure that OUT channel 5 is set to off and the pump is turned off When controlling the flow path via communication from the CR3000 make sure to set all the OUT channels to off Table 2 Relay unit settings OUT channel number 1 2 3 4 5 Solenoid valve 1 Solenoid valve 2 Device to be controlled Pump SV 1 SV 2 Sampled air OFF OFF OFF OFF ON Channel setting for gas of Zero gas ON OFF OFF OFF OFF interest Span gas OFF ON OFF OFF OFF Mass Flow Controller Set the mass flow controller to control mode Refer to Appendix Al Method for Checking the Mass Flow Controller Settings pg 19 for checking and modifying the controlled flow rate Table 3 Settings and range of analog output values for the mass flow controller Range of possible flow Corresponding Variable to be measured Target flow rate rate settings voltage Flow rate 8 4 L min 0 20 L min 0 5 V 2 System Details Infrared Gas Analyzer LI 7000 The infrared gas analyzer LI 7000 records analog output from the measuring sensors Set the analog output ranges to the default values below Table 4 Ranges of analog output values from the LI 7000 Corresponding Output Variable to be measured Range of variable to be measured vol
16. ation gases zero and span gases regulators for compressed gas cylinder a flat bladed screwdriver e g 8125 Flat bladed screwdriver Campbell Scientific for connecting wires and an adjustable wrench or a screw wrench for installing the regulators on the calibration gas cylinders The numbers 0 47 in the table correspond to the numbers in Photo 1 For the details of other parts and components refer to Appendix Parts and Components List pg 26 Table 1 Major system components and accessories Main unit Infrared gas analyzer LI 7000 Data logger CR3000 Barometer Mass flow controller Pump Flow path control system Power supply unit Switching power supplies 12 V 24 V 33Power cable Ultrasonic anemo 4 Sensor head probe and electronics box thermometer CSAT3 Mounting hardware Signal power cable Humidity and temperature Sensor HMP45A sensor Ventilation shield 8 Signal extension cable sampling inlet Tubes 8 6 tube outer diameter 8 mm inner diameter 6 mm 6 4 tube outer diameter 6 mm inner diameter 4 mm Compact flash card CF card The CSAT3 can be mounted on pipes with diameters of 48 5 50 5 mm with the included mounting hardware If diameter of the pipe to be used for mounting is outside this range mounting equipment other than the one included will be required 2 System Details 33Power cable Upper left CSAT3 storage case Upper right
17. e S lt gt E 2 gt 2 0 Power supply unit Calibration dashed lines are connections to gases be made during calibration Fig 5 Schematic of tubing and cabling layouts 15 3 Observation Procedure D Perform calibration prior to the initiation of the measurements For details refer to Section 3 2 Calibration Procedure pg 11 Make sure that all the OUT channels on the relay unit are set to off Connect the CR3000 power connector to the CR3000 data logger to turn on the data logger refer to Photo 10 4 Insert the CF card into the card slot CF card module on the CR3000 data logger Photo 10 CR3000 5 When comparative flux observations are performed check the clock on the power connector CR3000 and set it so that it matches the time on the observation system to be compared against 6 Using the control panel check to make sure that on Power Up for automated recovery after a power outage and Run Now on the CR3000 are activated Subsequently execute the control program to start data recording For the operating procedure relevant for this step refer to Appendix A4 CR3000 Operating Procedure Program Execution Procedure pg 22 The source code for the control program is shown in Appendix A5 CR3000 Control Program pg 23 7 During continuous observations deploy the main unit in the shade and keep the cover closed to
18. iaFlux network and 2 Global Environment Research Account for National Institutes of the Ministry of the Environment Long term Monitoring of Carbon Flux and Promotion of a Data Network in Asian Terrestrial Ecosystems 18 Appendices Appendices A Method for Checking the Mass Flow Controller Settings Checking the Operating Mode If the operating mode of the mass flow controller 15 properly set to control mode the OK light on the upper surface of the mass flow controller will be on If the OK light is off the flow rate is not yet stable In this case wait for a while and confirm that the light has turned on If the OK light 15 blinking or the seven segment display shows off refer to the instruction manual for the mass flow controller and reset the operating mode Checking the Controlled Flow Rate When the DISP button on the upper surface of the mass flow controller is pressed the SP light will turn on and the current setting of the controlled flow rate will be displayed To modify the controlled flow rate press either the or v button to change the numerical value and then press the ENT button This procedure needs to be performed while the SP light is on For the details of operating the mass flow controller refer to the instruction manuals for the digital mass flow controller CMQ series manufactured by Yamatake Corporation The manuals which can currently be viewed online are those for the succeeding
19. is option name with this operation the selected option becomes activated 4 Move the cursor to Execute which is located at the bottom of the list and press the Enter button 5 When the message confirming the intention to terminate the program is displayed terminate the program by selecting Yes and pressing the Enter button For details of operating the CR3000 refer to the CR3000 Operator s Manual http www campbellsci com documents manuals cr3000 pdf Appendices 5 CR3000 Control Program The program loaded on the present flux observation system PORTABLE CSAT3SDM CR controls the following three processes 1 Sampling and recording data at 10 Hz 2 Performing switchover of the solenoid valves and the pump for introducing calibration gases at the following times each day 23 39 23 40 23 45 23 50 Stop the measurements turn off the pump Introduce the zero gas Turn off the zero gas and introduce the span gas Turn off the span gas and turn on the pump 3 Outputting data to the memory card and writing reference data physical quantities to the internal memory for checking the real time data Output to Memory Card Table A1 Data output to memory card Column Output data Unit 1 X direction wind speed X ms 2 Y direction wind speed Y ms 3 Z direction wind speed Z ms 4 Air temperature T CSAT3 measurement value C 5 Water vapor concentration H2O mV 6 CO concentration CO2 mV
20. mated calibration is performed during the observation insert the tubes for the calibration gases zero and span gases through the tubing wiring hole in the main unit and connect the tubes to the ZERO GAS and SPAN GAS terminals at the gas inlets 245 Starting Up the System Connect the main and power supply units with a power cable 3 Observation Procedure Q Start the portable flux observation system after connecting the power supply unit cable to the power source Table 7 CSAT3 cable connection points The lowest row of CR3000 terminals Power cable Signal cable Cable color red black transparent green white brown black transparent Terminal label 12V G G SDM1 SDM2 SDM3 14 Table 8 signal cable connection points 45 AUX terminal block Cable color red brown yellow blue orange white black Terminal label Ta and Rh are combined Rh Rh Pw V Pw GND FAN V FAN GND 3 Observation Procedure signal cable Main Unit HMP45A Ultrasonic thermo anemomter 5 NEN CSAT3 OOOOO OOOOO CFM100 X signal power cable Air sampling inlet Air sampling inlet tube 8 6 yel bry Power cable ePEREE EB BEB BBB BEEBE jndu 6 4 tube USB cabl
21. nemo thermometer CSAT3 For the probe coordinate system refer to Appendix A3 CSAT3 Probe Coordinate System pg 21 2 Install the air sampling inlet near a CSAT3 arm refer to Photo 7 and connect an 8 6 tube outer diameter 8 mm inner diameter 6 mm to the air sampling inlet 3 Deploy the humidity and temperature sensor 45 at the same height as the CSAT3 probe Wiring Signal Cables and Installing the Air Sampling Inlet Tube 4 Insert the CSAT3 cable through the tubing wiring hole in the main unit and connect the cable to the lowest row of terminals on the data logger CR3000 refer to Photo 8 and Table 7 on the next page 5 Insert the tube 8 6 tube connected to the air sampling inlet through the tubing wiring hole in the main unit and connect the tube to the tube diameter conversion adapter attached to the Air terminal at the gas inlets refer to Photo 9 Insert the HPM45A signal cable through the tubing wiring hole in the main unit Connect the humidity and temperature sensor to HMPA5 AUX terminal block using the signal cable refer to Table 8 on the next page Photo 7 Example of air sampling inlet deployment Photo 8 Tubing wiring hole viewed from inside the main unit tubing wiring hole Photo 9 Gas inlets A tube diameter conversion adaptor is attached to the Air terminal on the left Connecting Calibration Gas Tubes for the Case of Automated Calibration 7 If auto
22. ng applied the green light on the switching power supply in the power supply unit and the indicator on the mass flow controller in the main unit will be on Subsequently power up the LI 7000 and circulate air through the reference cell for 24 hours or longer to remove and water vapor from the cell Calibrating the LI 7000 If calibration gas cylinders such as zero gas and span gas cylinders cannot be provided at the observation site the LI 7000 needs to be calibrated before the portable flux observation system is transported to the site Refer to the following section Section 3 2 Calibration Procedure for details Charging the Battery of the CR3000 Charge the battery of the CR3000 as necessary 3 2 Calibration Procedure Photo 2 Chemical bottle on the back panel of an LI 7000 Photo 3 Chemicals used during LI 7000 operation Left ASCARITE II Center Magnesium perchlorate Right A chemical bottle which has been removed from an LI 7000 For the calibration of the LI 7000 use the LI 7000 software which 15 distributed on the LI COR website http www licor com env products gas analyzers LI 7000 LI 7000 software jsp Preparing the Calibration Gas Cylinders D Attach a regulator to each of the calibration gas cylinders i e the zero and span gas air balance cylinders 3 Observation Procedure Connecting the LI 7000 to a PC and Starting the LI 7000 Software 2 Connect the LI 700
23. ns and weights of system components Dimensions W826 x H521 x D287 mm W371 x H258 x D152 mm L5 4 m Total weight 4 2 Current Consumption Main unit Ventilation shield W700 x H680 x D320 mm L50 m x 2 cables W760 x H220 x D220 mm L50m L15 m x 2 tubes 140 m Table 8 Current consumption of the system components Infrared gas analyzer LI 7000 LI COR Pump MVP03V12BA2 Panasonic Mass flow controller CMQ0020 Yamatake Solenoid valve AG31 02 2 CKD main unit is equipped with two solenoid valves Data logger CR3000 Campbell Scientific Barometer PTB 100A Vaisala Ultrasonic anemo thermometer CSAT3 Campbell Scientific Humidity and temperature sensor HMP45A Vaisala Fan RD804A Prince Fan Total current consumption E UE Current consumption 4A max 2 5A 300mA max 920mA per valve 10mA 4mA max 200mA 4mA max 17 9A Weight 37 66 kg 6 70 kg 1 56 kg 16 47 kg 3 67 kg 3 77 kg 5 49 kg 0 67 kg 1 99 kg Approx 78 kg Supply voltage DC10 5 16 V DC8 15 V DC15 24 V DC12 V DC10 16 V DC10 30 V DC10 16 V DC7 35 V DC12V References References Cited LI COR 11 7000 Analyzer Instruction Manual ftp ftp licor com perm env LI 7000 Manual LI 7000Manual pdf Campbell Scientific Inc CR3000 Micrologger Operator s Manual Revision 5 10 http www campbellsci com documents manuals cr3000 pdf Campbell Scientific Inc CSAT3 Three Dimen
24. r sampling solenoid valves for flow path control gas inlets and a mass flow controller Relay terminal block for power supply to the LI 7000 signal connectors 11 7000 and the mass flow controller DOA 3 Power suppl connectors Infrared gas analyzer Gas inlets E LI 7000 Tubing wiring hole Solenoid valves Connector for S power cable Flow meters with Relay terminal block for Relay terminal block Relay terminal blocks solenoid valves for supplying power to for LI 7000 pump Fig 3 Schematic layout of the components installed in the lower part of the main unit 2 system Details Power Supply Unit The power supply unit supplies power to the main unit after converting the 100 240 V commercial power supply into 12 V or 24 V DC 24V output 12V output switching switching power supply power supply 050 24 150 12 Relay terminal block for power supply DC output AC input C1 Fig 4 Schematic layout of the components installed in the power supply unit 2 System Details 2 3 Settings of Individual Components The settings for the individual components of the portable flux observation system are shown below Note that all the components except for the flow path control system are pre set thus modifications to the settings are required only for the flow path control system Flow Path Control System T
25. re in cell 5 5 V 9 100 Air pressure in the main unit 5 5 V 10 HMP45A Air temperature A 5 5 V 11 Relative humidity A 5 5 V 12 Flow rate A 5 5 V 13 Unused 14 Unused 1 Solenoid valve port 1 setting D C2 Solenoid valve port 2 setting D C3 Solenoid valve port 3 setting D C4 Solenoid valve port 4 setting D C5 Solenoid valve port 5 setting D C6 Unused 7 Unused C8 Unused 12V Voltage supply for sensors G Shield power source ground signal ground SDM C1 CSAT3 SDM data D SDM C2 CSAT3 SDM clock D SDM C3 CSAT3 SDM enable D 10 3 Observation Procedure 3 Observation Procedure 3 1 Advance Preparation Advance preparation needs to be performed at least 24 hours before the initiation of the observation Changing Chemicals in the LI 7000 In order to change the chemicals in the chemical bottles on the back panel of the LI 7000 within the main unit remove the bottles from the back panel Replace the magnesium perchlorate and CO absorbent sodium hydroxide coated non fibrous silicate trade name ASCARITE II in the bottles with fresh chemicals Furthermore check the record of chemical use and replace the chemicals in the bottles approximately once a year Circulating Air through the LI 7000 Reference Cell First apply current to the main unit by connecting it to the power supply unit with a power cable While current is bei
26. sional Sonic Anemometer Instruction Manual Revision 6 10 http www campbellsci com documents manuals csat3 pdf Further Reading Editorial Board of Practical Handbook of Tower Flux Observation Practical Handbook of Tower Flux Observation http www ffpri affre go jp labs flux manual manual index e html OHTANI Yoshikazu MIZOGUCHI Yasuko TAKANASHI Satoru YASUDA Yukio IWATA Hiroki NAKAI Yuichiro YUTA Satoko YAMANOI Katsumi 2010 Development of a portable flux observation system using a closed path gas analyzer for intercomparison Bulletin of the Forestry and Forest Products Research Institute 9 1 31 36 http www ffpri affre go jp pubs bulletin 4 1 4 documents 414 3 pdf Acknowledgements We wish to acknowledge Yukio YASUDA of the Tohoku Research Center Forestry and Forest Products Research Institute for his cooperation on the development of the portable flux observation system We also wish to thank Hiroki IWATA of the International Arctic Research Center of the University of Alaska for his assistance with building the system A part of the production of this manual as well as the development and production of the portable flux observation system were partially funded by 1 the Special Coordination Funds for Promoting Science and Technology of the Ministry of Education Culture Sports Science and Technology Standardization and systematization of carbon budget observation in Asian terrestrial ecosystem based on As
27. t data from the CSATS SATData 1 1 3 91 60 SDM address 3 Di f fch 1 SATData 1 Di f fch 2 SATData 2 Di f fch 3 SATData 3 Di f fch 4 SATData 4 RGAData 1 0 01 Di f fch 5 10 IRGAData 2 0 2 Di f fch 6 100 3 4 1 2 3 4 5 3 4 5 2 3 4 IRGAData IRGAData 0 02 Di f fch 7 0 01 Di f fch 8 70 TARHData 1 Dif fch 10 O 1 40 TARHData 2 Di f fch 11 0 1 Flow Di f fch 12 0 004 PanelTemp Ptemp 250 If Timelntolnterval 1320 1440 Then Call StartMeasure If Timelntolnterval StopMeasureMinutes 1440 min Then Call EndMeasure If Timelntolnterval StartZeroMinutes 1440 min Then Call ZeroCalibration If Timelntolnterval StartSpanMinutes 1440 min Then Call SpanCalibration If Timelntolnterval StartMeasureMinutes 1440 min Then Call StartMeasure CallTable IRGA CallTable SAT CallTable FluxData CallTable VAISALA CallTable Flow NextScan EndProg 1 2 3 4 1 2 2S Appendices Parts and Components List Main Unit 1 MASS FLOW CONTROLLER MFC MFC CMQ series YAMATAKE Japan CMQO0020BSSN000000 20 L full scale FS control range 1 to 100 FS Working voltage 24 V DC 2 SOLENOID VALVE SV 1 SV 2 AG31 02 2 03A DC12V CKD Japan Working voltage 12 V DC 3 FLOW METER FM 1 FM 2 RK1650 KOFLOC Japan 5 L min FS 4 DUST FILTERS DF 1 Balston Disposable Air Filter 2300 01961 available from LI COR U S A DF 2
28. tage channel Water vapor concentration 10 40 mmol 0 5 V DAC1 CO concentration 100 900 ppm 0 5 V DAC2 Temperature in the cell 100 C 0 5 V DAC3 Pressure in the cell 70 120 kPa 0 5 V DACA Ultrasonic Anemo Thermometer CSAT3 The ultrasonic anemo thermometer CSAT3 outputs data in digital form for recording Use the default setting AutoRanging for the output reporting range Barometer PTB 100A and Humidity and Temperature Sensor 5 The settings for analog output value ranges from the barometer and the humidity and temperature sensor are given in Table 5 Table 5 Settings of analog output value ranges from the barometer and the humidity and temperature sensor Range of Corresponding Variable to be measured Measuring sensor physical quantity voltage Pressure within the main unit Barometer PTB 100A 800 1060 hPa 0 5 V Humidity and temperature Air temperature 40 60 C 0 1 V sensor HMP45A Humidity and temperature Relative humidity 100 0 1 V sensor HMP45A 2 System Details Data Logger CR3000 Channel settings for the data logger are given in Table 6 Table 6 Data logger channel settings Channel Input signal A analog D digital or channel use Recording range 1 Unused 2 Unused 3 Unused 4 Unused 5 LI 7000 Water vapor concentration A 5 5 V 6 LI 7000 concentration A 5 5 V 7 LI 7000 Temperature in the cell 5 5 8 LI 7000 Pressu
29. that it can be easily carried and deployed the equipment within the portable flux observation system can be powered either by 12 V DC or 24 V DC due to the presupposition that the system will be used for inter site comparative observations within Asia The DC power required for the operation of the system can normally be obtained by connecting an AC power source to the 100 240 V AC input converter included with the system Fig 1 illustrates the flow paths of sampled air and calibration gases through the portable flux observation system This is a pressurized system in which the atmospheric air drawn in by a pump upstream of the infrared gas analyzer is transported into the analyzer The sampled air drawn in by the pump P 1 is introduced into the system from the gas inlet terminal Subsequently the sampled air passes through the dust filter DF 1 and is sent to the mass flow controller MFC by way of the solenoid valves SV 1 and SV 2 After the flow rate is adjusted by the MFC the sampled air passes through another dust filter DF 2 and 1s sent into the sample cell of the infrared gas analyzer At other times the zero and span gases for calibration are introduced from the gas inlet terminals into the system then to the flow meters FM 1 and FM 2 respectively and to the solenoid valves SV 1 and SV 2 respectively The subsequent flow path 15 identical to the flow path for the sampled air Regarding the infrared gas analyzer air from which
30. the 4 or v button and display the program list by pressing the Enter button 3 Select the name of the program to be executed the name of the program loaded on the present flux observation system is PORTABLE CSAT3SDM CR by pressing either the or v button Press the Enter button The option menu will now be displayed Fig A4 Control panel on Select the R P U tion b i ither the 4 v butt 4 Select the Run on Power Up option by pressing either the or v button the CR3000 and press the Enter button to display a to the left of this option name with this operation the selected option becomes activated Repeat the procedure to activate the Run Now option Move the cursor to Execute which is located at the bottom of the list and press the Enter button When message confirming intention to execute program is displayed execute program selecting Yes and pressing Enter button Program Termination Procedure D While a program is being executed on the CR3000 display the main menu by pressing any button on the control panel other than lt gt or ESC 2 Move the cursor to Run Stop Program by pressing either the or v button Press the Enter button The option menu will now be displayed 3 Select the Stop Retain Data option by pressing either the or v button and press the Enter button to display a to the left of th
31. ute 7 Hitsujigaoka Toyohira ku Sapporo 062 8516 Japan Ph 81 11 851 4131 Fax 81 11 851 4167 Reproduction Printing Digital Print Co Ltd 1322 1 Hasunuma Tsukuba 300 3262 Japan Ph 81 29 877 1331 Fax 81 29 864 6602 Copyright 2011 Forestry and Forest Products Research Institute Reproduction and or use of any content of this publication without permission from the Forestry and Forest Products Research Institute is prohibited Forestry and Forest Products Research Institute
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