Kippzonen Brewer MkIII Manual do Utilizador Página 1

Operators manualSpectrophotometerBrewer MkIII

MKIII OPERATOR’S MANUAL 7 1 SYSTEM OVERVIEW Refer to Figure 1.1 Brewer Spectrophotometers are a family of scientific instruments, wh

MKIII OPERATOR’S MANUAL 97 Method: 1. Turn off Brewer power 2. On the High Voltage module change jumper J2 from Pins 2-3 to Pins 1-2,

MKIII OPERATOR'S MANUAL 98 981 18 144932 34161 985.7 992 17 149

MKIII OPERATOR’S MANUAL 99 RS: SLITMASK MOTOR RUN/STOP TEST The RS test verifies that the slitmask motor (slitmask motor) is operating c

MKIII OPERATOR'S MANUAL 100 Position 7 allows simultaneous observation through slits 3 and 5. Dark count-corrected counts are stored i

MKIII OPERATOR’S MANUAL 101 FILTER #1/1 AND FILTER #2/1 GMT DEADTIME 191424 4.48950597E-08 191449 4.58755779E-08 191513 4.495217

MKIII OPERATOR'S MANUAL 102 Method: The command HG is issued. The program will read and display the current Brewer temperature, and a

MKIII OPERATOR’S MANUAL 103 Method: Type SL. The test runs through the same temperature and foreoptic positioning procedures described in

MKIII OPERATOR'S MANUAL 104 Method: The instrument is placed in a chamber where the ambient temperature is set to values between -10 a

MKIII OPERATOR’S MANUAL 105 polished stainless steel or white painted aluminium or steel sheet. It should not extend over the zenith wi

MKIII OPERATOR'S MANUAL 106 Method: The method by which direct-sun O3 and SO2 values are derived from the raw photon counts at the fiv

MKIII OPERATOR'S MANUAL 8 All of the above equipment is available from KIPP & ZONEN. The Brewer Spectrophotometer is supplied with

MKIII OPERATOR’S MANUAL 107 Method: Type AZ . The following screen display appears while the program steps the azimuth drive towards its

MKIII OPERATOR'S MANUAL 108 Enter 'y' if you want to update the calibration value; type 'n' if you feel the test wa

MKIII OPERATOR’S MANUAL 109 APPENDIX G PRELIMINARY DATA REDUCTION This section describes how the Brewer software processes the raw pho

MKIII OPERATOR'S MANUAL 110 COMPENSATING FOR DEADTIME Poisson statistics are assumed so that for any observation at a true count rate

MKIII OPERATOR’S MANUAL 111 These airmass calculations are imbedded within the "equation of time" computations. A second path-l

MKIII OPERATOR'S MANUAL 112 The SO2 determination is slightly more complicated because of the correction needed due to O3 : 2232211

MKIII OPERATOR’S MANUAL 113 APPENDIX H COMPUTER / BREWER INTERFACE (TELETYPE) The TT command gives an operator direct control of v

MKIII OPERATOR'S MANUAL 114 *Note: if the configuration variable USE.B3.FOR.LAMPS is set to YES then the lamps are both turned on with

MKIII OPERATOR’S MANUAL 115 Parameters The following table gives the permissible values for <m>. <m> Motor symbolic form of &

MKIII OPERATOR'S MANUAL 116 6. LOGFINISH Resets the log to act as though the newest entry in the log has already been reported. Syn

MKIII OPERATOR’S MANUAL 9 2 SYSTEM DESCRIPTION The Brewer MKIII Spectrophotometer is an optical instrument designed to measure grou

MKIII OPERATOR’S MANUAL 117 Parameters The <ci> are photon counts in the range 0 to 16777215, one for each slitmask position measur

MKIII OPERATOR'S MANUAL 118 Example R; O 0 If the above had been called before any other R command then a single zero is returned indic

MKIII OPERATOR’S MANUAL 119 Response <retCode> Parameters. Response format Meaning <retCode> 0 - 127 number of sets of configu

MKIII OPERATOR'S MANUAL 120 17. V Set the baud rate and the flag which controls echoing. Syntax V,<cps>[,<echo>] Paramet

MKIII OPERATOR’S MANUAL 121 The <name>s <name> format of <value> Effective meaning of <value> BREWER.ID integer

MKIII OPERATOR'S MANUAL 122 PMT.WINDOW.TIME float seconds Immediate seconds in a window. Should be an integral multiple of PMT reso

MKIII OPERATOR’S MANUAL 123 19. OPERATIONAL INFORMATION A variety of operational status values define the current state of the Brewer. C

MKIII OPERATOR'S MANUAL 124 MOTOR.POS [<motorId>] stepss no current motor position MOTOR.LOST [<motorId>] Boolean no curre

MKIII OPERATOR’S MANUAL 125 Examples ?MOTOR.POS[IRIS] reports the current position in half-step units of the iris motor. !SUP

MKIII OPERATOR'S MANUAL 126

MKIII OPERATOR'S MANUAL 10 Figure 2.2: View of Brewer with Covers Removed 2.1 SPECTROPHOTOMETER Table

MKIII OPERATOR’S MANUAL 127 APPENDIX I FIRMWARE LOG Messages appearing in the Instrument Log (accessed using the RL command) have

MKIII OPERATOR'S MANUAL 128 Bad command string. Command string buffer cleared. An illegal command was (not) processed. The subsequent

MKIII OPERATOR’S MANUAL 129 Motor <number>: Motor lost. The motor controller and the instrument controller are out of step. This

MKIII OPERATOR'S MANUAL 130 Reset <requestedReset> -> <actualResetType> from <resetTime> until <restartTime>

MKIII OPERATOR’S MANUAL 131 APPENDIX J BREWCMD.EXE The BrewCMD is a low level utility program to facilitate sending commands to and d

MKIII OPERATOR'S MANUAL 132

Our customer support remains at your disposal for any maintenance or repair, calibration, supplies and spares.Für Servicearbeiten und Kalibrierung, Ve

MKIII OPERATOR’S MANUAL 11 2.1.1 Mechanical Construction Refer to Figure 2.1 and Figure 2.2. The Brewer Spectrophotometer is housed in

MKIII OPERATOR'S MANUAL 12 Jumper setting Minimum temperature 1-2 20°C 2-3 10°C The default setting is a minimum temperature of 20°C.

MKIII OPERATOR’S MANUAL 13 Specifications of the Zenith Motor: Resolution: ±0.13° Accuracy (24 hours): ± 0.25°

MKIII OPERATOR'S MANUAL 14 Figure 2.4: Optical Elements of Brewer Spectrophotometer Lamp Assembly

MKIII OPERATOR’S MANUAL 15 Figure 2.5: Top View of Spectrophotometer FOREOPTICS Refer to Figure 2.4 an

MKIII OPERATOR'S MANUAL 16 When the instrument is aligned to view sunlight, an image of the sun is focused at the centre of the iris. W

REVISION HISTORY REV DESCRIPTION DCN # DATE APPD -- Initial Release 891 99-08-17 A Update 55 05-10-21

MKIII OPERATOR’S MANUAL 17 Spectrometers Detailed Description Light enters the entrance slit and passes through a tilted lens [LE 5] whic

MKIII OPERATOR'S MANUAL 18 depression with a tetrahedral corner at the other end of the pushrods locates a 60-degree cone mounted on t

MKIII OPERATOR’S MANUAL 19 Photomultiplier Detector (PMT) Light passing through the exit slits is collected on the cathode of a low-noise

MKIII OPERATOR'S MANUAL 20 • Pulse Amplifier - mounted in close proximity to the photomultiplier, amplifies and scales the photon-pul

MKIII OPERATOR’S MANUAL 21 Table 2.5 Specifications for the Azimuth Tracker Resolution ±0.02°. Accuracy (24 hours) ± 0.2° Max. slew ra

MKIII OPERATOR'S MANUAL 22

MKIII OPERATOR’S MANUAL 23 3 BREWER SYSTEM SETUP Prior to accepting a shipment from the carrier, the containers should be inspected f

MKIII OPERATOR'S MANUAL 24 Figure 3.2 Brewer Equipment Setup Figure 3.3: Brewer S

MKIII OPERATOR’S MANUAL 25 3.1 SPECTROPHOTOMETER UNPACKING AND SETUP 1. Open the Brewer crate and inspect the contents - at least the

MKIII OPERATOR'S MANUAL 26 Figure 3.4: Brewer Spectrophotometer Tripod.

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MKIII OPERATOR’S MANUAL 27 3.3 AZIMUTH TRACKER UNPACKING AND SETUP Refer to Figure 3.3. 1. Open the Azimuth Tracker box, remove th

MKIII OPERATOR'S MANUAL 28 final tightening. Care must be taken not to overtighten the bolts as the rubber feet may be damaged. 4. Co

MKIII OPERATOR’S MANUAL 29 3.5 BREWER OPERATING SOFTWARE Brewer Operating Software is provided on three 3.5” diskettes, with part numbe

MKIII OPERATOR'S MANUAL 30 6. Using a text editor again, open the “ICF” file as found in step 5. Line item #24 (following MKIII entry

MKIII OPERATOR’S MANUAL 31 5. Turn Computer equipment power ON, and launch the Brewer program. • the “Brewer” screen will appear, and a

MKIII OPERATOR'S MANUAL 32 10. SELECTING SITE : At the cm-> prompt type LL, and press Enter. • a list of Site Names will appear.

MKIII OPERATOR’S MANUAL 33 PD: routes all printing to the hard drive TE: prints temperature and humidity RL: prints

MKIII OPERATOR'S MANUAL 34 7. Mount the Tracker onto the Tripod, orienting it such that the “N” marking on the lower Tracker flange

MKIII OPERATOR’S MANUAL 35 4 BREWER COMMANDS 4.1 RESERVED KEYS: HOME, DEL, CTRL+BREAK, F KEYS HOME This key can be pressed to termina

MKIII OPERATOR'S MANUAL 36 4.2 BREWER COMMAND SUMMARY Following is the Command Set of the Brewer Spectrophotometer. Commands are en

1 MANUFACTURER'S GUARANTEE / WARRANTY If a warranty statement is not included in a purchasing contract, then the following warranty sta

MKIII OPERATOR’S MANUAL 37 B2 Standard Lamp ON B2 turns on the internal Standard test Lamp and is useful in a command sequence (i.e. B2Z

MKIII OPERATOR'S MANUAL 38 DA Date Set The Brewer ephemeris requires GMT (both date and time) for proper operation. Under normal, uni

MKIII OPERATOR’S MANUAL 39 DSSUM Direct Sun Data Summary DSSUM reads the daily Data (B) file and printouts out the summary of the day’s

MKIII OPERATOR'S MANUAL 40 FM Focused Moon Observation FM results in an O3 observation to be taken with the moon as the radiation sou

MKIII OPERATOR’S MANUAL 41 GS Gratings Data Collection GS initiates a routine that collects data required to calculate Grating Slope and

MKIII OPERATOR'S MANUAL 42 LF Location File Update The LF command displays a list of some of the known locations of Brewer sites throu

MKIII OPERATOR’S MANUAL 43 When the equipment has been set up as per the instructions in Section of this manual, and the QS command issued

MKIII OPERATOR'S MANUAL 44 SH Slit Mask (shutter) Motor Timing Test Normally a factory test, the SH command is used to determine the

MKIII OPERATOR’S MANUAL 45 SR Azimuth Tracker Steps Per Revolution SR initiates a test that determines the number of motor steps require

MKIII OPERATOR'S MANUAL 46 TU Test UV Port Alignment TU uses an external quartz-halogen lamp mounted over the UV dome to find the zen

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MKIII OPERATOR’S MANUAL 47 UL UV Lamp Scan UL is a test command that results in a UV scan being performed with a Lamp (rather than the s

MKIII OPERATOR'S MANUAL 48 ZB, ZC, ZS Zenith Sky Observations ZB, ZC, and ZS are variations of the same command, and are used when sk

MKIII OPERATOR’S MANUAL 49 5 ROUTINE OPERATIONS AND MINOR MAINTENANCE This section is written for the Brewer Operator, and is meant

MKIII OPERATOR'S MANUAL 50 Inside Checks Interrogate the Computer Screen and confirm that it is normal. # Name Example Description 1.

MKIII OPERATOR’S MANUAL 51 18. Current Activity - Comments about what the Brewer is currently doing. 19. Most Recent Measurement 429.4 -

MKIII OPERATOR'S MANUAL 52 1. HG SUMMARY There should be no errors printed which might indicate a Micrometer positioning problems. Ch

MKIII OPERATOR’S MANUAL 53 5.2 WEEKLY TASKS There are a number of tasks which should be performed and results recorded at least weekly

MKIII OPERATOR'S MANUAL 54 Tracker Drive Mechanism - See Figure 5.2 If the Steps per Revolution test returns an erratic result, or a

MKIII OPERATOR’S MANUAL 55 Zenith Drive The middle gear on the zenith drive has a hole to allow a small drop of low temperature rated lig

MKIII OPERATOR'S MANUAL 56 Backup Battery The Clock battery on the Main Electronics PCB has an extremely long lifetime under normal op

3 Recommendations by Environment Canada Mark III Brewer Ozone Spectrophotometers are recommended by Environment Canada (EC) as the signifi

MKIII OPERATOR’S MANUAL 57 6 UV STABILITY CHECK - QL Objective: To verify the instrument stability for UV measurements with the opt

MKIII OPERATOR'S MANUAL 58 6. Press the yellow button of the Voltmeter while turning the meter from the OFF position to the DC VOLT

MKIII OPERATOR’S MANUAL 59 General Instructions: 1. Three lamps should be scanned bi-weekly. If all three lamps give approximately the

MKIII OPERATOR'S MANUAL 60

MKIII OPERATOR’S MANUAL 61 7 SOLAR AND LUNAR SITING - SI, SIM Accurate measurements depend on the instrument being aligned very accu

MKIII OPERATOR'S MANUAL 62 5. Return to the Computer and follow the instructions for saving the new siting information. Before sav

MKIII OPERATOR’S MANUAL 63 8 BREWER SCHEDULES - SE, SKC, SK A most important feature of the Brewer is its capability to run for long

MKIII OPERATOR'S MANUAL 64 Approximate run times for the following measurements are shown below: HG (without 7-9 min. SL(without B2

MKIII OPERATOR’S MANUAL 65 APPENDIX A BREWER DATA FILES D Files: DJJJYY.nnn -- ‘D’ or Disk files are produced when the PD comma

MKIII OPERATOR'S MANUAL 66 HG Calibration Data Example Name Hg Type of measurement 12:10:22 Time of measurement .9995 Correlation va

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MKIII OPERATOR’S MANUAL 67 # Example Name 1 Summary Summary header 2 12:19:09 Time 3 mar Month 4 08/ Day 5 98 Year 6 104.612 mean zenith

MKIII OPERATOR'S MANUAL 68 These lines are repeated for 5 DS measurements which are then averaged. # Example Name 1 Summary Summary h

MKIII OPERATOR’S MANUAL 69 These lines are repeated for a total of 7 measurements, which are averaged. # Example Name 1 Summary Summary

MKIII OPERATOR'S MANUAL 70 16 625382 raw counts wavelength #0 17 120 dark count 18 97706 raw counts wavelength #1 19 294523 raw counts

MKIII OPERATOR’S MANUAL 71 XLJJJYY.nnn - Extended Lamp Scan # Example Name 1 Integration time is 0.2294 seconds per cycle Integration

MKIII OPERATOR'S MANUAL 72 A/D Values: -- A/D values are not stored in files (except HV and +5v and SL current), but they are very im

MKIII OPERATOR’S MANUAL 73 PO Values: -- The PO command generates the following. MKIII BREWER INSTRUMENT #159

MKIII OPERATOR'S MANUAL 74 Average files: ???AVG.nnn and OZOAVGYY.nnn The Brewer is a ‘statistical’ instrument, and instantaneous de

MKIII OPERATOR’S MANUAL 75 H2OAVG.nnn Humidity Log File The file is updated during the AP command at the End-of-Day. 1 2 3 4 5 6

MKIII OPERATOR'S MANUAL 76 OPAVG.nnn -- Operating Constants Log Used to keep a record of changes to the operating constants used in

5 1 SYSTEM OVERVIEW ... 7

MKIII OPERATOR’S MANUAL 77 FZOAVG.nnn 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 17897 326.3 +11 -3.1 +1.2 31/ 77 192 12 44.7 +13

MKIII OPERATOR'S MANUAL 78 DUVJJJYY.nnn: Gives the Daily DUV. Time DUV 6.1860 4.402109 8.5610 65.338420 9.8725 132.457

MKIII OPERATOR’S MANUAL 79 LAMP_LLL.nnn - Lamp File The Lamp file is created at the factory by an initial Quick Scan. Subsequent QS sc

MKIII OPERATOR'S MANUAL 80

MKIII OPERATOR’S MANUAL 81 APPENDIX B CONFIGURATION FILES ICFJJJYY.nnn - Instrument Constants # Example Name 1 0 Ozone temperat

MKIII OPERATOR'S MANUAL 82 OP_ST.nnn - Operating State File The operating state file controls many of the operating parameters of the

MKIII OPERATOR’S MANUAL 83 DCFJJJ.nnn - Dispersion constants The Dispersion Constants are used to calculate the ozone wavelength of the

MKIII OPERATOR'S MANUAL 84 UVRJJJYY.nnn First column: wavelength in Angstrom. Second column is responsivity in counts/mW/m2/nm. ZSFJJ

MKIII OPERATOR’S MANUAL 85 APPENDIX C UV PROCESSING LAMP DATA ANALYSIS Brewer Response Files RESIII.EXE is used to determine the

MKIII OPERATOR'S MANUAL 86 Lamp Irradiance Files RD_UX.EXE is used to process external lamp scans from the XL or UL routine to produc

6 APPENDIX F FACTORY TESTS ... 95 Setup an

MKIII OPERATOR’S MANUAL 87 For AB_UVDAT daily irradiance integration is the sum of histograms that are as wide as the average of the diff

MKIII OPERATOR'S MANUAL 88

MKIII OPERATOR’S MANUAL 89 APPENDIX D NOBREWER It is often useful to be able to operate the Brewer software without having a Brewer

MKIII OPERATOR'S MANUAL 90

MKIII OPERATOR’S MANUAL 91 APPENDIX E UMKEHR PROCESSING Umkehr profiles show the vertical distribution of Ozone in the Atmosphere fr

MKIII OPERATOR'S MANUAL 92 1. Conventions: JJJYY Julian day and year nnn Brewer number 2. All Umkehr Data and

MKIII OPERATOR’S MANUAL 93 7. Successful execution of TOMKER results in the creation of three files: USJJJYY.nnn UOJJJYY.nnn UNJ

MKIII OPERATOR'S MANUAL 94

MKIII OPERATOR’S MANUAL 95 APPENDIX F FACTORY TESTS SETUP AND CALIBRATION TESTS The tests and calibration techniques described her

MKIII OPERATOR'S MANUAL 96 Method: Send the PDHPHG command sequence to the Brewer, wait for the tests to finish. The SH command is en